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1. Trends of long-term variability of the sea level at coastal stations of the Arctic Ocean

Author: Merkulov, V. A., Ashik, I. M., Timokhov, L. A., Merkulov, V. A., Ashik, I. M., and Timokhov, L. A.
Published: 2017

2. Trends of long-term variability of the sea level at coastal stations of the Arctic Ocean

Author: Merkulov, V. A., Ashik, I. M., Timokhov, L. A., Merkulov, V. A., Ashik, I. M., and Timokhov, L. A.
Published: 2017

3. [the Arctic] Ocean temperature and salinity [in: State of the Climate in 2013]

Author: Timmermans, M.-L., Ashik, I., Frolov, I., Ha, H. K., Ingvaldsen, R., Kikuchi, T., Kim, T. W., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Polyakov, I., Rabe, Benjamin, Schauer, Ursula, Schlosser, P., Smethie, W. M., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Zimmerman, S., Timmermans, M.-L., Ashik, I., Frolov, I., Ha, H. K., Ingvaldsen, R., Kikuchi, T., Kim, T. W., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Polyakov, I., Rabe, Benjamin, Schauer, Ursula, Schlosser, P., Smethie, W. M., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., and Zimmerman, S.
Published: 2014

4. [the Arctic] Ocean temperature and salinity [in: State of the Climate in 2013]

Author: Timmermans, M.-L., Ashik, I., Frolov, I., Ha, H. K., Ingvaldsen, R., Kikuchi, T., Kim, T. W., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Polyakov, I., Rabe, Benjamin, Schauer, Ursula, Schlosser, P., Smethie, W. M., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Zimmerman, S., Timmermans, M.-L., Ashik, I., Frolov, I., Ha, H. K., Ingvaldsen, R., Kikuchi, T., Kim, T. W., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Polyakov, I., Rabe, Benjamin, Schauer, Ursula, Schlosser, P., Smethie, W. M., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., and Zimmerman, S.
Published: 2014

5. State of the climate in 2012

Author: Achberger, C, Achberger, C, Ackerman, SA, Albanil, A, Alexander, P, Alfaro, EJ, Allan, R, Alves, LM, Amador, JA, Ambenje, P, Andrianjafinirina, S, Antonov, J, Aravequia, JA, Arendt, A, Arévalo, J, Arndt, DS, Ashik, I, Atheru, Z, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, DE, Beard, G, Becker, A, Behrenfeld, MJ, Bell, GD, Benedetti, A, Bernhard, G, Berrisford, P, Berry, DI, Bhatt, U, Bidegain, M, Bindoff, N, Bissolli, P, Blake, ES, Blunden, J, Booneeady, R, Bosilovich, M, Box, JE, Boyer, T, Braathen, GO, Bromwich, DH, Brown, R, Brown, L, Bruhwiler, L, Bulygina, ON, Burgess, D, Burrows, J, Calderón, B, Camargo, SJ, Campbell, J, Cao, Y, Cappelen, J, Carrasco, G, Chambers, DP, Chang'A, L, Chappell, P, Chehade, W, Cheliah, M, Christiansen, HH, Christy, JR, Ciais, P, Coelho, CAS, Cogley, JG, Colwell, S, Cross, JN, Crouch, J, Cunningham, SA, Dacic, M, De Jeu, RAM, Dekaa, FS, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Domingues, CM, Dong, S, Dorigo, WA, Drozdov, DS, Duguay, CR, Dunn, RJH, Dúran-Quesada, AM, Dutton, GS, Ehmann, C, Elkins, JW, Euscátegui, C, Famiglietti, JS, Fang, F, Fauchereau, N, Feely, RA, Fekete, BM, Fenimore, C, Fioletov, VE, Achberger, C, Achberger, C, Ackerman, SA, Albanil, A, Alexander, P, Alfaro, EJ, Allan, R, Alves, LM, Amador, JA, Ambenje, P, Andrianjafinirina, S, Antonov, J, Aravequia, JA, Arendt, A, Arévalo, J, Arndt, DS, Ashik, I, Atheru, Z, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, DE, Beard, G, Becker, A, Behrenfeld, MJ, Bell, GD, Benedetti, A, Bernhard, G, Berrisford, P, Berry, DI, Bhatt, U, Bidegain, M, Bindoff, N, Bissolli, P, Blake, ES, Blunden, J, Booneeady, R, Bosilovich, M, Box, JE, Boyer, T, Braathen, GO, Bromwich, DH, Brown, R, Brown, L, Bruhwiler, L, Bulygina, ON, Burgess, D, Burrows, J, Calderón, B, Camargo, SJ, Campbell, J, Cao, Y, Cappelen, J, Carrasco, G, Chambers, DP, Chang'A, L, Chappell, P, Chehade, W, Cheliah, M, Christiansen, HH, Christy, JR, Ciais, P, Coelho, CAS, Cogley, JG, Colwell, S, Cross, JN, Crouch, J, Cunningham, SA, Dacic, M, De Jeu, RAM, Dekaa, FS, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Domingues, CM, Dong, S, Dorigo, WA, Drozdov, DS, Duguay, CR, Dunn, RJH, Dúran-Quesada, AM, Dutton, GS, Ehmann, C, Elkins, JW, Euscátegui, C, Famiglietti, JS, Fang, F, Fauchereau, N, Feely, RA, Fekete, BM, Fenimore, C, and Fioletov, VE
Abstract: For the first time in several years, the El Nino-Southern Oscillation did not dominate regional climate conditions around the globe. A weak La Niña dissipated to ENSO-neutral conditions by spring, and while El Nino appeared to be emerging during summer, this phase never fully developed as sea surface temperatures in the eastern equatorial Pacific uncharacteristically returned to neutral conditions. Nevertheless, other large-scale climate patterns and extreme weather events impacted various regions during the year. A negative phase of the Arctic Oscillation from mid-January to early February contributed to frigid conditions in parts of northern Africa, eastern Europe, and western Asia. A lack of rain during the 2012 wet season led to the worst drought in at least the past three decades for northeastern Brazil. Central North America also experienced one of its most severe droughts on record. The Caribbean observed a very wet dry season and it was the Sahel's wettest rainy season in 50 years. Overall, the 2012 average temperature across global land and ocean surfaces ranked among the 10 warmest years on record. The global land surface temperature alone was also among the 10 warmest on record. In the upper atmosphere, the average stratospheric temperature was record or near-record cold, depending on the dataset. After a 30-year warming trend from 1970 to 1999 for global sea surface temperatures, the period 2000-12 had little further trend. This may be linked to the prevalence of La Niña-like conditions during the 21st century. Heat content in the upper 700 m of the ocean remained near record high levels in 2012. Net increases from 2011 to 2012 were observed at 700-m to 2000-m depth and even in the abyssal ocean below. Following sharp decreases in global sea level in the first half of 2011 that were linked to the effects of La Niña, sea levels rebounded to reach records highs in 2012. The increased hydrological cycle seen in recent years continued, with more evaporation
Published: 2013

6. State of the Climate in 2012

Author: Blunden, Jessica, Arndt, Derek S., Achberger, Christine, Ackerman, Stephen A., Albanil, Adelina, Alexander, P., Alfaro, Eric J., Allan, Rob, Alves, Lincoln M., Amador, Jorge A., Ambenje, Peter, Andrianjafinirina, Solonomenjanahary, Antonov, John, Aravequia, Jose A., Arendt, A., Arevalo, Juan, Ashik, I., Atheru, Zachary, Banzon, Viva, Baringer, Molly O., Barreira, Sandra, Barriopedro, David E., Beard, Grant, Becker, Andreas, Behrenfeld, Michael J., Bell, Gerald D., Benedetti, Angela, Bernhard, Germar, Berrisford, Paul, Berry, David I., Bhatt, U., Bidegain, Mario, Bindoff, Nathan, Bissolli, Peter, Blake, Eric S., Booneeady, Raj, Bosilovich, Michael, Box, J. E., Boyer, Tim, Braathen, Geir O., Bromwich, David H., Brown, R., Brown, L., Bruhwiler, Lori, Bulygina, Olga N., Burgess, D., Burrows, John, Calderon, Blanca, Camargo, Suzana J., Campbell, Jayaka, Cao, Y., Cappelen, J., Carrasco, Gualberto, Chambers, Don P., Chang'a, L., Chappell, Petra, Chehade, Wissam, Cheliah, Muthuvel, Christiansen, Hanne H., Christy, John R., Ciais, Phillipe, Coelho, Caio A. S., Cogley, J. G., Colwell, Steve, Cross, J. N., Crouch, Jake, Cunningham, Stuart A., Dacic, Milan, De Jeu, Richard A. M., Dekaa, Francis S., Demircan, Mesut, Derksen, C., Diamond, Howard J., Dlugokencky, Ed J., Dohan, Kathleen, Dolman, A. Johannes, Domingues, Catia M., Shenfu, Dong, Dorigo, Wouter A., Drozdov, D. S., Duguay, Claude R., Dunn, Robert J. H., Duran-Quesada, Ana M., Dutton, Geoff S., Ehmann, Christian, Elkins, James W., Euscategui, Christian, Famiglietti, James S., Fan, Fang, Fauchereau, Nicolas, Feely, Richard A., Fekete, Balazs M., Fenimore, Chris, Fioletov, Vitali E., Fogarty, Chris T., Fogt, Ryan L., Folland, Chris K., Foster, Michael J., Frajka-Williams, Eleanor, Franz, Bryan A., Frith, Stacey H., Frolov, I., Ganter, Catherine, Garzoli, Silvia, Geai, M. -L, Gerland, S., Gitau, Wilson, Gleason, Karin L., Gobron, Nadine, Goldenberg, Stanley B., Goni, Gustavo, Good, Simon A., Gottschalck, Jonathan, Gregg, Margarita C., Griffiths, Georgina, Grooss, Jens-Uwe, Guard, Charles 'Chip', Gupta, Shashi K., Hall, Bradley D., Halpert, Michael S., Harada, Yayoi, Hauri, C., Heidinger, Andrew K., Heikkila, Anu, Heim, Richard R., Jr., Heimbach, Patrick, Hidalgo, Hugo G., Hilburn, Kyle, Ho, Shu-peng (Ben), Hobbs, Will R., Holgate, Simon, Hovsepyan, Anahit, Zeng-Zhen, Hu, Hughes, P., Hurst, Dale F., Ingvaldsen, R., Inness, Antje, Jaimes, Ena, Jakobsson, Martin, James, Adamu I., Jeffries, Martin O., Johns, William E., Johnsen, Bjorn, Johnson, Gregory C., Johnson, Bryan, Jones, Luke T., Jumaux, Guillaume, Kabidi, Khadija, Kaiser, Johannes W., Kamga, Andre, Kang, Kyun-Kuk, Kanzow, Torsten O., Kao, Hsun-Ying, Keller, Linda M., Kennedy, John J., Key, J., Khatiwala, Samar, Pour, H. Kheyrollah, Kholodov, A. L., Khoshkam, Mahbobeh, Kijazi, Agnes, Kikuchi, T., Kim, B. -M, Kim, S. -J, Kimberlain, Todd B., Knaff, John A., Korshunova, Natalia N., Koskela, T., Kousky, Vernon E., Kramarova, Natalya, Kratz, David P., Krishfield, R., Kruger, Andries, Kruk, Michael C., Kumar, Arun, Lagerloef, Gary S. E., Lakkala, K., Lander, Mark A., Landsea, Chris W., Lankhorst, Matthias, Laurila, T., Lazzara, Matthew A., Lee, Craig, Leuliette, Eric, Levitus, Sydney, L'Heureux, Michelle, Lieser, Jan, Lin, I-I, Liu, Y. Y., Liu, Y., Hongxing, Liu, Yanju, Liu, Lobato-Sanchez, Rene, Locarnini, Ricardo, Loeb, Norman G., Loeng, H., Long, Craig S., Lorrey, Andrew M., Luhunga, P., Lumpkin, Rick, Jing-Jia, Luo, Lyman, John M., Macdonald, Alison M., Maddux, Brent C., Malekela, C., Manney, Gloria, Marchenko, S. S., Marengo, Jose A., Marotzke, Jochem, Marra, John J., Martinez-Gueingla, Rodney, Massom, Robert A., Mathis, Jeremy T., McBride, Charlotte, McCarthy, Gerard, McVicar, Tim R., Mears, Carl, Meier, W., Meinen, Christopher S., Menendez, Melisa, Merrifield, Mark A., Mitchard, Edward, Mitchum, Gary T., Montzka, Stephen A., Morcrette, Jean-Jacques, Mote, Thomas, Muehle, Jens, Muehr, Bernhard, Mullan, A. Brett, Mueller, Rolf, Nash, Eric R., Nerem, R. Steven, Newlin, Michele L., Newman, Paul A., Ng'ongolo, H., Nieto, Juan Jose, Nishino, S., Nitsche, Helga, Noetzli, Jeannette, Oberman, N. G., Obregon, Andre', Ogallo, Laban A., Oludhe, Christopher S., Omar, Mohamed I, Overland, James, Oyunjargal, Lamjav, Parinussa, Robert M., Park, Geun-Ha, Park, E-Hyung, Parker, David, Pasch, Richard J., Pascual-Ramirez, Reynaldo, Pelto, Mauri S., Penalba, Olga, Peng, L., Perovich, Don K., Pezza, Alexandre B., Phillips, David, Pickart, R., Pinty, Bernard, Pitts, Michael C., Purkey, Sarah G., Quegan, Shaun, Quintana, Juan, Rabe, B., Rahimzadeh, Fatemeh, Raholijao, Nirivololona, Raiva, I., Rajeevan, Madhavan, Ramiandrisoa, Voahanginirina, Ramos, Alexandre, Ranivoarissoa, Sahondra, Rayner, Nick A., Rayner, Darren, Razuveav, Vyacheslav N., Reagan, James, Reid, Phillip, Renwick, James, Revedekar, Jayashree, Richter-Menge, Jacqueline, Rivera, Ingrid L., Robinson, David A., Rodell, Matthew, Romanovsky, Vladimir E., Ronchail, Josyane, Rosenlof, Karen H., Sabine, Christopher L., Salvador, Mozar A., Sanchez-Lugo, Ahira, Santee, Michelle L., Sasgen, I., Sawaengphokhai, P., Sayouri, Amal, Scambos, Ted A., Schauer, U., Schemm, Jae, Schlosser, P., Schmid, Claudia, Schreck, Carl, Semiletov, Igor, Send, Uwe, Sensoy, Serhat, Setzer, Alberto, Severinghaus, Jeffrey, Shakhova, Natalia, Sharp, M., Shiklomanov, Nicolai I., Siegel, David A., Silva, Viviane B. S., Silva, Frabricio D. S., Sima, Fatou, Simeonov, Petio, Simmonds, I., Simmons, Adrian, Skansi, Maria, Smeed, David A., Smethie, W. M., Smith, Adam B., Smith, Cathy, Smith, Sharon L., Smith, Thomas M., Sokolov, V., Srivastava, A. K., Stackhouse, Paul W., Jr., Stammerjohn, Sharon, Steele, M., Steffen, Konrad, Steinbrecht, Wolfgang, Stephenson, Tannecia, Su, J., Svendby, T., Sweet, William, Takahashi, Taro, Tanabe, Raymond M., Taylor, Michael A., Tedesco, Marco, Teng, William L., Thepaut, Jean-Noel, Thiaw, Wassila M., Thoman, R., Thompson, Philip, Thorne, Peter W., Timmermans, M. -L, Tobin, Skie, Toole, J., Trewin, Blair C., Trigo, Ricardo M., Trotman, Adrian, Tschudi, M., van de Wal, Roderik S. W., Van der Werf, Guido R., Vautard, Robert, Vazquez, J. L., Vieira, Goncalo, Vincent, Lucie, Vose, Russ S., Wagner, Wolfgang W., Wahr, John, Walsh, J., Junhong, Wang, Chunzai, Wang, Wang, M., Sheng-Hung, Wang, Lei, Wang, Wanninkhof, Rik, Weaver, Scott, Weber, Mark, Werdell, P. Jeremy, Whitewood, Robert, Wijffels, Susan, Wilber, Anne C., Wild, J. D., Willett, Kate M., Williams, W., Willis, Joshua K., Wolken, G., Wong, Takmeng, Woodgate, R., Worthy, D., Wouters, B., Wovrosh, Alex J., Yan, Xue, Yamada, Ryuji, Zungang, Yin, Lisan, Yu, Liangying, Zhang, Peiqun, Zhang, Lin, Zhao, Zhao, J., Zhong, W., Ziemke, Jerry, Zimmermann, S., Blunden, Jessica, Arndt, Derek S., Achberger, Christine, Ackerman, Stephen A., Albanil, Adelina, Alexander, P., Alfaro, Eric J., Allan, Rob, Alves, Lincoln M., Amador, Jorge A., Ambenje, Peter, Andrianjafinirina, Solonomenjanahary, Antonov, John, Aravequia, Jose A., Arendt, A., Arevalo, Juan, Ashik, I., Atheru, Zachary, Banzon, Viva, Baringer, Molly O., Barreira, Sandra, Barriopedro, David E., Beard, Grant, Becker, Andreas, Behrenfeld, Michael J., Bell, Gerald D., Benedetti, Angela, Bernhard, Germar, Berrisford, Paul, Berry, David I., Bhatt, U., Bidegain, Mario, Bindoff, Nathan, Bissolli, Peter, Blake, Eric S., Booneeady, Raj, Bosilovich, Michael, Box, J. E., Boyer, Tim, Braathen, Geir O., Bromwich, David H., Brown, R., Brown, L., Bruhwiler, Lori, Bulygina, Olga N., Burgess, D., Burrows, John, Calderon, Blanca, Camargo, Suzana J., Campbell, Jayaka, Cao, Y., Cappelen, J., Carrasco, Gualberto, Chambers, Don P., Chang'a, L., Chappell, Petra, Chehade, Wissam, Cheliah, Muthuvel, Christiansen, Hanne H., Christy, John R., Ciais, Phillipe, Coelho, Caio A. S., Cogley, J. G., Colwell, Steve, Cross, J. N., Crouch, Jake, Cunningham, Stuart A., Dacic, Milan, De Jeu, Richard A. M., Dekaa, Francis S., Demircan, Mesut, Derksen, C., Diamond, Howard J., Dlugokencky, Ed J., Dohan, Kathleen, Dolman, A. Johannes, Domingues, Catia M., Shenfu, Dong, Dorigo, Wouter A., Drozdov, D. S., Duguay, Claude R., Dunn, Robert J. H., Duran-Quesada, Ana M., Dutton, Geoff S., Ehmann, Christian, Elkins, James W., Euscategui, Christian, Famiglietti, James S., Fan, Fang, Fauchereau, Nicolas, Feely, Richard A., Fekete, Balazs M., Fenimore, Chris, Fioletov, Vitali E., Fogarty, Chris T., Fogt, Ryan L., Folland, Chris K., Foster, Michael J., Frajka-Williams, Eleanor, Franz, Bryan A., Frith, Stacey H., Frolov, I., Ganter, Catherine, Garzoli, Silvia, Geai, M. -L, Gerland, S., Gitau, Wilson, Gleason, Karin L., Gobron, Nadine, Goldenberg, Stanley B., Goni, Gustavo, Good, Simon A., Gottschalck, Jonathan, Gregg, Margarita C., Griffiths, Georgina, Grooss, Jens-Uwe, Guard, Charles 'Chip', Gupta, Shashi K., Hall, Bradley D., Halpert, Michael S., Harada, Yayoi, Hauri, C., Heidinger, Andrew K., Heikkila, Anu, Heim, Richard R., Jr., Heimbach, Patrick, Hidalgo, Hugo G., Hilburn, Kyle, Ho, Shu-peng (Ben), Hobbs, Will R., Holgate, Simon, Hovsepyan, Anahit, Zeng-Zhen, Hu, Hughes, P., Hurst, Dale F., Ingvaldsen, R., Inness, Antje, Jaimes, Ena, Jakobsson, Martin, James, Adamu I., Jeffries, Martin O., Johns, William E., Johnsen, Bjorn, Johnson, Gregory C., Johnson, Bryan, Jones, Luke T., Jumaux, Guillaume, Kabidi, Khadija, Kaiser, Johannes W., Kamga, Andre, Kang, Kyun-Kuk, Kanzow, Torsten O., Kao, Hsun-Ying, Keller, Linda M., Kennedy, John J., Key, J., Khatiwala, Samar, Pour, H. Kheyrollah, Kholodov, A. L., Khoshkam, Mahbobeh, Kijazi, Agnes, Kikuchi, T., Kim, B. -M, Kim, S. -J, Kimberlain, Todd B., Knaff, John A., Korshunova, Natalia N., Koskela, T., Kousky, Vernon E., Kramarova, Natalya, Kratz, David P., Krishfield, R., Kruger, Andries, Kruk, Michael C., Kumar, Arun, Lagerloef, Gary S. E., Lakkala, K., Lander, Mark A., Landsea, Chris W., Lankhorst, Matthias, Laurila, T., Lazzara, Matthew A., Lee, Craig, Leuliette, Eric, Levitus, Sydney, L'Heureux, Michelle, Lieser, Jan, Lin, I-I, Liu, Y. Y., Liu, Y., Hongxing, Liu, Yanju, Liu, Lobato-Sanchez, Rene, Locarnini, Ricardo, Loeb, Norman G., Loeng, H., Long, Craig S., Lorrey, Andrew M., Luhunga, P., Lumpkin, Rick, Jing-Jia, Luo, Lyman, John M., Macdonald, Alison M., Maddux, Brent C., Malekela, C., Manney, Gloria, Marchenko, S. S., Marengo, Jose A., Marotzke, Jochem, Marra, John J., Martinez-Gueingla, Rodney, Massom, Robert A., Mathis, Jeremy T., McBride, Charlotte, McCarthy, Gerard, McVicar, Tim R., Mears, Carl, Meier, W., Meinen, Christopher S., Menendez, Melisa, Merrifield, Mark A., Mitchard, Edward, Mitchum, Gary T., Montzka, Stephen A., Morcrette, Jean-Jacques, Mote, Thomas, Muehle, Jens, Muehr, Bernhard, Mullan, A. Brett, Mueller, Rolf, Nash, Eric R., Nerem, R. Steven, Newlin, Michele L., Newman, Paul A., Ng'ongolo, H., Nieto, Juan Jose, Nishino, S., Nitsche, Helga, Noetzli, Jeannette, Oberman, N. G., Obregon, Andre', Ogallo, Laban A., Oludhe, Christopher S., Omar, Mohamed I, Overland, James, Oyunjargal, Lamjav, Parinussa, Robert M., Park, Geun-Ha, Park, E-Hyung, Parker, David, Pasch, Richard J., Pascual-Ramirez, Reynaldo, Pelto, Mauri S., Penalba, Olga, Peng, L., Perovich, Don K., Pezza, Alexandre B., Phillips, David, Pickart, R., Pinty, Bernard, Pitts, Michael C., Purkey, Sarah G., Quegan, Shaun, Quintana, Juan, Rabe, B., Rahimzadeh, Fatemeh, Raholijao, Nirivololona, Raiva, I., Rajeevan, Madhavan, Ramiandrisoa, Voahanginirina, Ramos, Alexandre, Ranivoarissoa, Sahondra, Rayner, Nick A., Rayner, Darren, Razuveav, Vyacheslav N., Reagan, James, Reid, Phillip, Renwick, James, Revedekar, Jayashree, Richter-Menge, Jacqueline, Rivera, Ingrid L., Robinson, David A., Rodell, Matthew, Romanovsky, Vladimir E., Ronchail, Josyane, Rosenlof, Karen H., Sabine, Christopher L., Salvador, Mozar A., Sanchez-Lugo, Ahira, Santee, Michelle L., Sasgen, I., Sawaengphokhai, P., Sayouri, Amal, Scambos, Ted A., Schauer, U., Schemm, Jae, Schlosser, P., Schmid, Claudia, Schreck, Carl, Semiletov, Igor, Send, Uwe, Sensoy, Serhat, Setzer, Alberto, Severinghaus, Jeffrey, Shakhova, Natalia, Sharp, M., Shiklomanov, Nicolai I., Siegel, David A., Silva, Viviane B. S., Silva, Frabricio D. S., Sima, Fatou, Simeonov, Petio, Simmonds, I., Simmons, Adrian, Skansi, Maria, Smeed, David A., Smethie, W. M., Smith, Adam B., Smith, Cathy, Smith, Sharon L., Smith, Thomas M., Sokolov, V., Srivastava, A. K., Stackhouse, Paul W., Jr., Stammerjohn, Sharon, Steele, M., Steffen, Konrad, Steinbrecht, Wolfgang, Stephenson, Tannecia, Su, J., Svendby, T., Sweet, William, Takahashi, Taro, Tanabe, Raymond M., Taylor, Michael A., Tedesco, Marco, Teng, William L., Thepaut, Jean-Noel, Thiaw, Wassila M., Thoman, R., Thompson, Philip, Thorne, Peter W., Timmermans, M. -L, Tobin, Skie, Toole, J., Trewin, Blair C., Trigo, Ricardo M., Trotman, Adrian, Tschudi, M., van de Wal, Roderik S. W., Van der Werf, Guido R., Vautard, Robert, Vazquez, J. L., Vieira, Goncalo, Vincent, Lucie, Vose, Russ S., Wagner, Wolfgang W., Wahr, John, Walsh, J., Junhong, Wang, Chunzai, Wang, Wang, M., Sheng-Hung, Wang, Lei, Wang, Wanninkhof, Rik, Weaver, Scott, Weber, Mark, Werdell, P. Jeremy, Whitewood, Robert, Wijffels, Susan, Wilber, Anne C., Wild, J. D., Willett, Kate M., Williams, W., Willis, Joshua K., Wolken, G., Wong, Takmeng, Woodgate, R., Worthy, D., Wouters, B., Wovrosh, Alex J., Yan, Xue, Yamada, Ryuji, Zungang, Yin, Lisan, Yu, Liangying, Zhang, Peiqun, Zhang, Lin, Zhao, Zhao, J., Zhong, W., Ziemke, Jerry, and Zimmermann, S.
Abstract: For the first time in serveral years, the El Nino-Southern Oscillation did not dominate regional climate conditions around the globe. A weak La Ni a dissipated to ENSOneutral conditions by spring, and while El Nino appeared to be emerging during summer, this phase never fully developed as sea surface temperatures in the eastern conditions. Nevertheless, other large-scale climate patterns and extreme weather events impacted various regions during the year. A negative phase of the Arctic Oscillation from mid-January to early February contributed to frigid conditions in parts of northern Africa, eastern Europe, and western Asia. A lack of rain during the 2012 wet season led to the worst drought in at least the past three decades for northeastern Brazil. Central North America also experienced one of its most severe droughts on record. The Caribbean observed a very wet dry season and it was the Sahel's wettest rainy season in 50 years. Overall, the 2012 average temperature across global land and ocean surfaces ranked among the 10 warmest years on record. The global land surface temperature alone was also among the 10 warmest on record. In the upper atmosphere, the average stratospheric temperature was record or near-record cold, depending on the dataset. After a 30-year warming trend from 1970 to 1999 for global sea surface temperatures, the period 2000-12 had little further trend. This may be linked to the prevalence of La Ni a-like conditions during the 21st century. Heat content in the upper 700 m of the ocean remained near record high levels in 2012. Net increases from 2011 to 2012 were observed at 700-m to 2000-m depth and even in the abyssal ocean below. Following sharp decreases in to the effects of La Ni a, sea levels rebounded to reach records highs in 2012. The increased hydrological cycle seen in recent years continued, with more evaporation in drier locations and more precipitation in rainy areas. In a pattern that has held since 2004, salty areas of the ocea
Published: 2013
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7. [the Arctic] Ocean temperature and salinity [in: State of the Climate in 2012]

Author: Timmermans, M.-L., Ashik, I., Cao, Y., Frolov, I., Ingvaldsen, R., Kikuchi, T., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Rabe, Benjamin, Semiletov, I., Schauer, Ursula, Schlosser, P., Shakhova, N., Smethie, W. M., Sokolov, V., Steele, M., Su, J., Toole, J., Williams, W., Woodgate, R., Zhao, J., Zhong, W., Zimmerman, S., Timmermans, M.-L., Ashik, I., Cao, Y., Frolov, I., Ingvaldsen, R., Kikuchi, T., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Rabe, Benjamin, Semiletov, I., Schauer, Ursula, Schlosser, P., Shakhova, N., Smethie, W. M., Sokolov, V., Steele, M., Su, J., Toole, J., Williams, W., Woodgate, R., Zhao, J., Zhong, W., and Zimmerman, S.
Published: 2013

8. State of the climate in 2012

Author: Achberger, C, Achberger, C, Ackerman, SA, Albanil, A, Alexander, P, Alfaro, EJ, Allan, R, Alves, LM, Amador, JA, Ambenje, P, Andrianjafinirina, S, Antonov, J, Aravequia, JA, Arendt, A, Arévalo, J, Arndt, DS, Ashik, I, Atheru, Z, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, DE, Beard, G, Becker, A, Behrenfeld, MJ, Bell, GD, Benedetti, A, Bernhard, G, Berrisford, P, Berry, DI, Bhatt, U, Bidegain, M, Bindoff, N, Bissolli, P, Blake, ES, Blunden, J, Booneeady, R, Bosilovich, M, Box, JE, Boyer, T, Braathen, GO, Bromwich, DH, Brown, R, Brown, L, Bruhwiler, L, Bulygina, ON, Burgess, D, Burrows, J, Calderón, B, Camargo, SJ, Campbell, J, Cao, Y, Cappelen, J, Carrasco, G, Chambers, DP, Chang'A, L, Chappell, P, Chehade, W, Cheliah, M, Christiansen, HH, Christy, JR, Ciais, P, Coelho, CAS, Cogley, JG, Colwell, S, Cross, JN, Crouch, J, Cunningham, SA, Dacic, M, De Jeu, RAM, Dekaa, FS, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Domingues, CM, Dong, S, Dorigo, WA, Drozdov, DS, Duguay, CR, Dunn, RJH, Dúran-Quesada, AM, Dutton, GS, Ehmann, C, Elkins, JW, Euscátegui, C, Famiglietti, JS, Fang, F, Fauchereau, N, Feely, RA, Fekete, BM, Fenimore, C, Fioletov, VE, Achberger, C, Achberger, C, Ackerman, SA, Albanil, A, Alexander, P, Alfaro, EJ, Allan, R, Alves, LM, Amador, JA, Ambenje, P, Andrianjafinirina, S, Antonov, J, Aravequia, JA, Arendt, A, Arévalo, J, Arndt, DS, Ashik, I, Atheru, Z, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, DE, Beard, G, Becker, A, Behrenfeld, MJ, Bell, GD, Benedetti, A, Bernhard, G, Berrisford, P, Berry, DI, Bhatt, U, Bidegain, M, Bindoff, N, Bissolli, P, Blake, ES, Blunden, J, Booneeady, R, Bosilovich, M, Box, JE, Boyer, T, Braathen, GO, Bromwich, DH, Brown, R, Brown, L, Bruhwiler, L, Bulygina, ON, Burgess, D, Burrows, J, Calderón, B, Camargo, SJ, Campbell, J, Cao, Y, Cappelen, J, Carrasco, G, Chambers, DP, Chang'A, L, Chappell, P, Chehade, W, Cheliah, M, Christiansen, HH, Christy, JR, Ciais, P, Coelho, CAS, Cogley, JG, Colwell, S, Cross, JN, Crouch, J, Cunningham, SA, Dacic, M, De Jeu, RAM, Dekaa, FS, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Domingues, CM, Dong, S, Dorigo, WA, Drozdov, DS, Duguay, CR, Dunn, RJH, Dúran-Quesada, AM, Dutton, GS, Ehmann, C, Elkins, JW, Euscátegui, C, Famiglietti, JS, Fang, F, Fauchereau, N, Feely, RA, Fekete, BM, Fenimore, C, and Fioletov, VE
Abstract: For the first time in several years, the El Nino-Southern Oscillation did not dominate regional climate conditions around the globe. A weak La Niña dissipated to ENSO-neutral conditions by spring, and while El Nino appeared to be emerging during summer, this phase never fully developed as sea surface temperatures in the eastern equatorial Pacific uncharacteristically returned to neutral conditions. Nevertheless, other large-scale climate patterns and extreme weather events impacted various regions during the year. A negative phase of the Arctic Oscillation from mid-January to early February contributed to frigid conditions in parts of northern Africa, eastern Europe, and western Asia. A lack of rain during the 2012 wet season led to the worst drought in at least the past three decades for northeastern Brazil. Central North America also experienced one of its most severe droughts on record. The Caribbean observed a very wet dry season and it was the Sahel's wettest rainy season in 50 years. Overall, the 2012 average temperature across global land and ocean surfaces ranked among the 10 warmest years on record. The global land surface temperature alone was also among the 10 warmest on record. In the upper atmosphere, the average stratospheric temperature was record or near-record cold, depending on the dataset. After a 30-year warming trend from 1970 to 1999 for global sea surface temperatures, the period 2000-12 had little further trend. This may be linked to the prevalence of La Niña-like conditions during the 21st century. Heat content in the upper 700 m of the ocean remained near record high levels in 2012. Net increases from 2011 to 2012 were observed at 700-m to 2000-m depth and even in the abyssal ocean below. Following sharp decreases in global sea level in the first half of 2011 that were linked to the effects of La Niña, sea levels rebounded to reach records highs in 2012. The increased hydrological cycle seen in recent years continued, with more evaporation
Published: 2013

9. [the Arctic] Ocean temperature and salinity [in: State of the Climate in 2012]

Author: Timmermans, M.-L., Ashik, I., Cao, Y., Frolov, I., Ingvaldsen, R., Kikuchi, T., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Rabe, Benjamin, Semiletov, I., Schauer, Ursula, Schlosser, P., Shakhova, N., Smethie, W. M., Sokolov, V., Steele, M., Su, J., Toole, J., Williams, W., Woodgate, R., Zhao, J., Zhong, W., Zimmerman, S., Timmermans, M.-L., Ashik, I., Cao, Y., Frolov, I., Ingvaldsen, R., Kikuchi, T., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Rabe, Benjamin, Semiletov, I., Schauer, Ursula, Schlosser, P., Shakhova, N., Smethie, W. M., Sokolov, V., Steele, M., Su, J., Toole, J., Williams, W., Woodgate, R., Zhao, J., Zhong, W., and Zimmerman, S.
Published: 2013

10. STATE OF THE CLIMATE IN 2011 Special Supplement to the Bulletin of the American Meteorological Society Vol. 93, No. 7, July 2012

Author: Achberger, C, Achberger, C, Ackerman, SA, Ahmed, FH, Albanil-Encarnacion, A, Alfaro, EJ, Alves, LM, Allan, R, Amador, JA, Ambenje, P, Antoine, MD, Antonov, J, Arevalo, J, Arndt, DS, Ashik, I, Atheru, Z, Baccini, A, Baez, J, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, DE, Bates, JJ, Becker, A, Behrenfeld, MJ, Bell, GD, Benedetti, A, Bernhard, G, Berrisford, P, Berry, DI, Beszczynska-Moeller, A, Bhatt, US, Bidegain, M, Bieniek, P, Birkett, C, Bissolli, P, Blake, ES, Blunden, J, Boudet-Rouco, D, Box, JE, Boyer, T, Braathen, GO, Brackenridge, GR, Brohan, P, Bromwich, DH, Brown, L, Brown, R, Bruhwiler, L, Bulygina, ON, Burrows, J, Calderon, B, Camargo, SJ, Cappellen, J, Carmack, E, Carrasco, G, Chambers, DP, Christiansen, HH, Christy, J, Chung, D, Ciais, P, Coehlo, CAS, Colwell, S, Comiso, J, Cretaux, J-F, Crouch, J, Cunningham, SA, De Jeu, RAM, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Dorigo, WA, Drozdov, DS, Duguay, C, Dutton, E, Dutton, GS, Elkins, JW, Epstein, HE, Famiglietti, JS, Fanton d'Andon, OH, Feely, RA, Fekete, BM, Fenimore, C, Fernandez-Prieto, D, Fields, E, Fioletov, V, Fogt, RL, Folland, C, Foster, MJ, Frajka-Williams, E, Franz, BA, Frey, K, Frith, SH, Frolov, I, Frost, GV, Ganter, C, Garzoli, S, Gitau, W, Gleason, KL, Achberger, C, Achberger, C, Ackerman, SA, Ahmed, FH, Albanil-Encarnacion, A, Alfaro, EJ, Alves, LM, Allan, R, Amador, JA, Ambenje, P, Antoine, MD, Antonov, J, Arevalo, J, Arndt, DS, Ashik, I, Atheru, Z, Baccini, A, Baez, J, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, DE, Bates, JJ, Becker, A, Behrenfeld, MJ, Bell, GD, Benedetti, A, Bernhard, G, Berrisford, P, Berry, DI, Beszczynska-Moeller, A, Bhatt, US, Bidegain, M, Bieniek, P, Birkett, C, Bissolli, P, Blake, ES, Blunden, J, Boudet-Rouco, D, Box, JE, Boyer, T, Braathen, GO, Brackenridge, GR, Brohan, P, Bromwich, DH, Brown, L, Brown, R, Bruhwiler, L, Bulygina, ON, Burrows, J, Calderon, B, Camargo, SJ, Cappellen, J, Carmack, E, Carrasco, G, Chambers, DP, Christiansen, HH, Christy, J, Chung, D, Ciais, P, Coehlo, CAS, Colwell, S, Comiso, J, Cretaux, J-F, Crouch, J, Cunningham, SA, De Jeu, RAM, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Dorigo, WA, Drozdov, DS, Duguay, C, Dutton, E, Dutton, GS, Elkins, JW, Epstein, HE, Famiglietti, JS, Fanton d'Andon, OH, Feely, RA, Fekete, BM, Fenimore, C, Fernandez-Prieto, D, Fields, E, Fioletov, V, Fogt, RL, Folland, C, Foster, MJ, Frajka-Williams, E, Franz, BA, Frey, K, Frith, SH, Frolov, I, Frost, GV, Ganter, C, Garzoli, S, Gitau, W, and Gleason, KL
Published: 2012

11. STATE OF THE CLIMATE IN 2011 Special Supplement to the Bulletin of the American Meteorological Society Vol. 93, No. 7, July 2012

Author: Achberger, C, Achberger, C, Ackerman, SA, Ahmed, FH, Albanil-Encarnacion, A, Alfaro, EJ, Alves, LM, Allan, R, Amador, JA, Ambenje, P, Antoine, MD, Antonov, J, Arevalo, J, Arndt, DS, Ashik, I, Atheru, Z, Baccini, A, Baez, J, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, DE, Bates, JJ, Becker, A, Behrenfeld, MJ, Bell, GD, Benedetti, A, Bernhard, G, Berrisford, P, Berry, DI, Beszczynska-Moeller, A, Bhatt, US, Bidegain, M, Bieniek, P, Birkett, C, Bissolli, P, Blake, ES, Blunden, J, Boudet-Rouco, D, Box, JE, Boyer, T, Braathen, GO, Brackenridge, GR, Brohan, P, Bromwich, DH, Brown, L, Brown, R, Bruhwiler, L, Bulygina, ON, Burrows, J, Calderon, B, Camargo, SJ, Cappellen, J, Carmack, E, Carrasco, G, Chambers, DP, Christiansen, HH, Christy, J, Chung, D, Ciais, P, Coehlo, CAS, Colwell, S, Comiso, J, Cretaux, J-F, Crouch, J, Cunningham, SA, De Jeu, RAM, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Dorigo, WA, Drozdov, DS, Duguay, C, Dutton, E, Dutton, GS, Elkins, JW, Epstein, HE, Famiglietti, JS, Fanton d'Andon, OH, Feely, RA, Fekete, BM, Fenimore, C, Fernandez-Prieto, D, Fields, E, Fioletov, V, Fogt, RL, Folland, C, Foster, MJ, Frajka-Williams, E, Franz, BA, Frey, K, Frith, SH, Frolov, I, Frost, GV, Ganter, C, Garzoli, S, Gitau, W, Gleason, KL, Achberger, C, Achberger, C, Ackerman, SA, Ahmed, FH, Albanil-Encarnacion, A, Alfaro, EJ, Alves, LM, Allan, R, Amador, JA, Ambenje, P, Antoine, MD, Antonov, J, Arevalo, J, Arndt, DS, Ashik, I, Atheru, Z, Baccini, A, Baez, J, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, DE, Bates, JJ, Becker, A, Behrenfeld, MJ, Bell, GD, Benedetti, A, Bernhard, G, Berrisford, P, Berry, DI, Beszczynska-Moeller, A, Bhatt, US, Bidegain, M, Bieniek, P, Birkett, C, Bissolli, P, Blake, ES, Blunden, J, Boudet-Rouco, D, Box, JE, Boyer, T, Braathen, GO, Brackenridge, GR, Brohan, P, Bromwich, DH, Brown, L, Brown, R, Bruhwiler, L, Bulygina, ON, Burrows, J, Calderon, B, Camargo, SJ, Cappellen, J, Carmack, E, Carrasco, G, Chambers, DP, Christiansen, HH, Christy, J, Chung, D, Ciais, P, Coehlo, CAS, Colwell, S, Comiso, J, Cretaux, J-F, Crouch, J, Cunningham, SA, De Jeu, RAM, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Dorigo, WA, Drozdov, DS, Duguay, C, Dutton, E, Dutton, GS, Elkins, JW, Epstein, HE, Famiglietti, JS, Fanton d'Andon, OH, Feely, RA, Fekete, BM, Fenimore, C, Fernandez-Prieto, D, Fields, E, Fioletov, V, Fogt, RL, Folland, C, Foster, MJ, Frajka-Williams, E, Franz, BA, Frey, K, Frith, SH, Frolov, I, Frost, GV, Ganter, C, Garzoli, S, Gitau, W, and Gleason, KL
Published: 2012

12. State of the climate in 2010

Author: Achberger, C, Achberger, C, Ackerman, SA, Ahlstrøm, A, Alfaro, EJ, Allan, RJ, Alves, L, Amador, JA, Amelie, V, Andrianjafinirina, S, Antonov, J, Arndt, DS, Ashik, I, Atheru, Z, Attaher, SM, Baez, J, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, D, Barthia, PK, Beal, LM, Becker, A, Behrenfeld, MJ, Bell, GD, Belward, AS, Benedetti, A, Berrisford, P, Berry, DI, Beszczynska-Moeller, A, Bhatt, US, Bidegain, M, Bindoff, NL, Bissolli, P, Blake, ES, Blunden, J, Booneeady, P, Bosilovich, MG, Boudet, DR, Box, JE, Boyer, TP, Bromwich, DH, Brown, R, Bryden, HL, Bulygina, ON, Burrows, J, Butler, J, Cais, P, Calderon, B, Callaghan, TV, Camargo, SJ, Cappelen, J, Carmack, E, Chambers, DP, Chelliah, M, Chidichimo, MP, Christiansen, H, Christy, J, Coelho, CAS, Colwell, S, Comiso, JC, Compo, GP, Crouch, J, Cunningham, SA, Cutié, VC, Dai, A, Davydova-Belitskaya, V, De Jeu, R, Decker, D, Dee, D, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Dorigo, W, Drozdov, DS, Durack, PJ, Dutton, GS, Easterling, D, Ebita, A, Eischeid, J, Elkins, JW, Epstein, HE, Euscátegui, C, Faijka-Williams, E, Famiglietti, JS, Faniriantsoa, R, Feely, RA, Fekete, BM, Fenimore, C, Fettweis, X, Achberger, C, Achberger, C, Ackerman, SA, Ahlstrøm, A, Alfaro, EJ, Allan, RJ, Alves, L, Amador, JA, Amelie, V, Andrianjafinirina, S, Antonov, J, Arndt, DS, Ashik, I, Atheru, Z, Attaher, SM, Baez, J, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, D, Barthia, PK, Beal, LM, Becker, A, Behrenfeld, MJ, Bell, GD, Belward, AS, Benedetti, A, Berrisford, P, Berry, DI, Beszczynska-Moeller, A, Bhatt, US, Bidegain, M, Bindoff, NL, Bissolli, P, Blake, ES, Blunden, J, Booneeady, P, Bosilovich, MG, Boudet, DR, Box, JE, Boyer, TP, Bromwich, DH, Brown, R, Bryden, HL, Bulygina, ON, Burrows, J, Butler, J, Cais, P, Calderon, B, Callaghan, TV, Camargo, SJ, Cappelen, J, Carmack, E, Chambers, DP, Chelliah, M, Chidichimo, MP, Christiansen, H, Christy, J, Coelho, CAS, Colwell, S, Comiso, JC, Compo, GP, Crouch, J, Cunningham, SA, Cutié, VC, Dai, A, Davydova-Belitskaya, V, De Jeu, R, Decker, D, Dee, D, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Dorigo, W, Drozdov, DS, Durack, PJ, Dutton, GS, Easterling, D, Ebita, A, Eischeid, J, Elkins, JW, Epstein, HE, Euscátegui, C, Faijka-Williams, E, Famiglietti, JS, Faniriantsoa, R, Feely, RA, Fekete, BM, Fenimore, C, and Fettweis, X
Abstract: Several large-scale climate patterns influenced climate conditions and weather patterns across the globe during 2010. The transition from a warm El Niño phase at the beginning of the year to a cool La Niña phase by July contributed to many notable events, ranging from record wetness across much of Australia to historically low Eastern Pacific basin and near-record high North Atlantic basin hurricane activity. The remaining five main hurricane basins experienced below- to well-below-normal tropical cyclone activity. The negative phase of the Arctic Oscillation was a major driver of Northern Hemisphere temperature patterns during 2009/10 winter and again in late 2010. It contributed to record snowfall and unusually low temperatures over much of northern Eurasia and parts of the United States, while bringing above-normal temperatures to the high northern latitudes. The February Arctic Oscillation Index value was the most negative since records began in 1950. The 2010 average global land and ocean surface temperature was among the two warmest years on record. The Arctic continued to warm at about twice the rate of lower latitudes. The eastern and tropical Pacific Ocean cooled about 1°C from 2009 to 2010, reflecting the transition from the 2009/10 El Niño to the 2010/11 La Niña. Ocean heat fluxes contributed to warm sea surface temperature anomalies in the North Atlantic and the tropical Indian and western Pacific Oceans. Global integrals of upper ocean heat content for the past several years have reached values consistently higher than for all prior times in the record, demonstrating the dominant role of the ocean in the Earth's energy budget. Deep and abyssal waters of Antarctic origin have also trended warmer on average since the early 1990s. Lower tropospheric temperatures typically lag ENSO surface fluctuations by two to four months, thus the 2010 temperature was dominated by the warm phase El Niño conditions that occurred during the latter half of 2009 and early 20
Published: 2011

13. Sostoyanie sloya atlanticheskikh vod v Severnom Ledovitom okeane v 2007-2009 gg. (The state of Atlantic water layer in the Arctic Ocean in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., and Sokolov, V. T.
Abstract: Oceanographic studies during IPY 2007/2009 provided new information on spatial variability of hydrographic parameters. Detailed pattern of irregularities in the Atlantic Water (AW) layer was documented in the Nansen Basin. Spatial scales of temperature distribution and the depth of the upper boundary of AW were estimated. In the Canadian Basin spatial variations of temperature were less pronounced. During IPY 2007/2008 the area occupied by AW has increased. According to our estimations the positive temperature anomaly in some regions was as high as 1,5°C, which is about 70% of temperature maximum in 1950-1959. The upper boundary of AW (zero degree isotherm) rose by 40-120 m around the Mendeleyev Ridge and in the Amundsen Basin. At the same time, in the Canada Basin and in the western Fram Strait the AW thickness decreased by similar value. Heat content of the AW layer around the major part of the Arctic Ocean exceeded mean climatic value, except for the compact area north of Franz Josef Land, where small negative anomaly was observed. Throughout 2008 mean temperature and maximum temperature in the AW layer were higher than mean climatic values. At the same time, the state of AW layer in the inflow region, east of Fram Strait along the continental margin to the Laptev Sea, substantially changed in comparison with 2007. Mean and maximum temperature of AW dropped by 0,25/0,5°C. Heat content and the Thickness of AW layer have also decreased. Basing on the obtained results, we conclude that during 2008/2009 there was a neneral reverse trend in AW parameters towards mean climatic results.
Published: 2011

14. Ekstremaľnye izmeneniya temperatury i solenosti vody arkticheskogo poverkhnostnogo sloya v 2007-2009 gg. (The extreme changes of temperature and salinity in the Arctic Ocean surface layer in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Chernyavskaya, Ekaterina A., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., and Chernyavskaya, Ekaterina A.
Abstract: This paper examines the temperature and salinity patterns and evolution in the surface layer of the Arctic Ocean in 2007-2009 and deals with the factors impacting the extreme changes both in temperature and salinity in 2007. The large areas of positive and negative anomalies in temperature and salinity have been formed over the Arctic Ocean with the apparant frontal barrier areea between Eurasian and American basins. The followed years (2008-2009) exhibit the reducing of thermohaline anomalies between the two basins assuming gradually rcovering to the initial state. Considering the mean salinities within 5-50 m depth one can claim that the positive linear trend is evident both in Eurasian and American basinss since 1950 to 1993 while the intensive freshening was obsserved in American basin in 2007-2009. We intend that these changes in salinity can be assumed as the signature of non-stationary nature of all Arctic marine environments.
Published: 2011

15. [the Arctic] Ocean [in: State of the Climate in 2010]

Author: Proshutinsky, A., Timmermans, M.-L., Ashik, I., Beszczynska-Moeller, A., Carmack, E., Frolov, I., Itoh, M., Kikuchi, T., Krishfield, R., McLaughlin, F., Nishino, S., Rabe, B., Schauer, U., Shimada, K., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Yamamoto-Kawai, M., Zimmermann, S., Proshutinsky, A., Timmermans, M.-L., Ashik, I., Beszczynska-Moeller, A., Carmack, E., Frolov, I., Itoh, M., Kikuchi, T., Krishfield, R., McLaughlin, F., Nishino, S., Rabe, B., Schauer, U., Shimada, K., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Yamamoto-Kawai, M., and Zimmermann, S.
Published: 2011

16. NOWCAST: Fate of early 2000s Arctic warm water pulse.

Author: Polyakov, I. V., Alexeev, V. A., Ashik, I. M., Bacon, S., Beszczynska-Möller, Agnieszka, Carmack, E. C., Dmitrenko, I. A., Fortier, L., Gascard, J. C., Hansen, E., Hölemann, Jens, Ivanov, V. V., Kikuchi, T., Kirillov, S., Lenn, Y. D., McLaughlin, F. A., Piechura, J., Repina, I., Timokhov, L. A., Walczowski, W., Woodgate, R., Polyakov, I. V., Alexeev, V. A., Ashik, I. M., Bacon, S., Beszczynska-Möller, Agnieszka, Carmack, E. C., Dmitrenko, I. A., Fortier, L., Gascard, J. C., Hansen, E., Hölemann, Jens, Ivanov, V. V., Kikuchi, T., Kirillov, S., Lenn, Y. D., McLaughlin, F. A., Piechura, J., Repina, I., Timokhov, L. A., Walczowski, W., and Woodgate, R.
Published: 2011

17. State of the climate in 2010

Author: Achberger, C, Achberger, C, Ackerman, SA, Ahlstrøm, A, Alfaro, EJ, Allan, RJ, Alves, L, Amador, JA, Amelie, V, Andrianjafinirina, S, Antonov, J, Arndt, DS, Ashik, I, Atheru, Z, Attaher, SM, Baez, J, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, D, Barthia, PK, Beal, LM, Becker, A, Behrenfeld, MJ, Bell, GD, Belward, AS, Benedetti, A, Berrisford, P, Berry, DI, Beszczynska-Moeller, A, Bhatt, US, Bidegain, M, Bindoff, NL, Bissolli, P, Blake, ES, Blunden, J, Booneeady, P, Bosilovich, MG, Boudet, DR, Box, JE, Boyer, TP, Bromwich, DH, Brown, R, Bryden, HL, Bulygina, ON, Burrows, J, Butler, J, Cais, P, Calderon, B, Callaghan, TV, Camargo, SJ, Cappelen, J, Carmack, E, Chambers, DP, Chelliah, M, Chidichimo, MP, Christiansen, H, Christy, J, Coelho, CAS, Colwell, S, Comiso, JC, Compo, GP, Crouch, J, Cunningham, SA, Cutié, VC, Dai, A, Davydova-Belitskaya, V, De Jeu, R, Decker, D, Dee, D, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Dorigo, W, Drozdov, DS, Durack, PJ, Dutton, GS, Easterling, D, Ebita, A, Eischeid, J, Elkins, JW, Epstein, HE, Euscátegui, C, Faijka-Williams, E, Famiglietti, JS, Faniriantsoa, R, Feely, RA, Fekete, BM, Fenimore, C, Fettweis, X, Achberger, C, Achberger, C, Ackerman, SA, Ahlstrøm, A, Alfaro, EJ, Allan, RJ, Alves, L, Amador, JA, Amelie, V, Andrianjafinirina, S, Antonov, J, Arndt, DS, Ashik, I, Atheru, Z, Attaher, SM, Baez, J, Banzon, V, Baringer, MO, Barreira, S, Barriopedro, D, Barthia, PK, Beal, LM, Becker, A, Behrenfeld, MJ, Bell, GD, Belward, AS, Benedetti, A, Berrisford, P, Berry, DI, Beszczynska-Moeller, A, Bhatt, US, Bidegain, M, Bindoff, NL, Bissolli, P, Blake, ES, Blunden, J, Booneeady, P, Bosilovich, MG, Boudet, DR, Box, JE, Boyer, TP, Bromwich, DH, Brown, R, Bryden, HL, Bulygina, ON, Burrows, J, Butler, J, Cais, P, Calderon, B, Callaghan, TV, Camargo, SJ, Cappelen, J, Carmack, E, Chambers, DP, Chelliah, M, Chidichimo, MP, Christiansen, H, Christy, J, Coelho, CAS, Colwell, S, Comiso, JC, Compo, GP, Crouch, J, Cunningham, SA, Cutié, VC, Dai, A, Davydova-Belitskaya, V, De Jeu, R, Decker, D, Dee, D, Demircan, M, Derksen, C, Diamond, HJ, Dlugokencky, EJ, Dohan, K, Dolman, AJ, Dorigo, W, Drozdov, DS, Durack, PJ, Dutton, GS, Easterling, D, Ebita, A, Eischeid, J, Elkins, JW, Epstein, HE, Euscátegui, C, Faijka-Williams, E, Famiglietti, JS, Faniriantsoa, R, Feely, RA, Fekete, BM, Fenimore, C, and Fettweis, X
Abstract: Several large-scale climate patterns influenced climate conditions and weather patterns across the globe during 2010. The transition from a warm El Niño phase at the beginning of the year to a cool La Niña phase by July contributed to many notable events, ranging from record wetness across much of Australia to historically low Eastern Pacific basin and near-record high North Atlantic basin hurricane activity. The remaining five main hurricane basins experienced below- to well-below-normal tropical cyclone activity. The negative phase of the Arctic Oscillation was a major driver of Northern Hemisphere temperature patterns during 2009/10 winter and again in late 2010. It contributed to record snowfall and unusually low temperatures over much of northern Eurasia and parts of the United States, while bringing above-normal temperatures to the high northern latitudes. The February Arctic Oscillation Index value was the most negative since records began in 1950. The 2010 average global land and ocean surface temperature was among the two warmest years on record. The Arctic continued to warm at about twice the rate of lower latitudes. The eastern and tropical Pacific Ocean cooled about 1°C from 2009 to 2010, reflecting the transition from the 2009/10 El Niño to the 2010/11 La Niña. Ocean heat fluxes contributed to warm sea surface temperature anomalies in the North Atlantic and the tropical Indian and western Pacific Oceans. Global integrals of upper ocean heat content for the past several years have reached values consistently higher than for all prior times in the record, demonstrating the dominant role of the ocean in the Earth's energy budget. Deep and abyssal waters of Antarctic origin have also trended warmer on average since the early 1990s. Lower tropospheric temperatures typically lag ENSO surface fluctuations by two to four months, thus the 2010 temperature was dominated by the warm phase El Niño conditions that occurred during the latter half of 2009 and early 20
Published: 2011

18. Sostoyanie sloya atlanticheskikh vod v Severnom Ledovitom okeane v 2007-2009 gg. (The state of Atlantic water layer in the Arctic Ocean in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., and Sokolov, V. T.
Abstract: Oceanographic studies during IPY 2007/2009 provided new information on spatial variability of hydrographic parameters. Detailed pattern of irregularities in the Atlantic Water (AW) layer was documented in the Nansen Basin. Spatial scales of temperature distribution and the depth of the upper boundary of AW were estimated. In the Canadian Basin spatial variations of temperature were less pronounced. During IPY 2007/2008 the area occupied by AW has increased. According to our estimations the positive temperature anomaly in some regions was as high as 1,5°C, which is about 70% of temperature maximum in 1950-1959. The upper boundary of AW (zero degree isotherm) rose by 40-120 m around the Mendeleyev Ridge and in the Amundsen Basin. At the same time, in the Canada Basin and in the western Fram Strait the AW thickness decreased by similar value. Heat content of the AW layer around the major part of the Arctic Ocean exceeded mean climatic value, except for the compact area north of Franz Josef Land, where small negative anomaly was observed. Throughout 2008 mean temperature and maximum temperature in the AW layer were higher than mean climatic values. At the same time, the state of AW layer in the inflow region, east of Fram Strait along the continental margin to the Laptev Sea, substantially changed in comparison with 2007. Mean and maximum temperature of AW dropped by 0,25/0,5°C. Heat content and the Thickness of AW layer have also decreased. Basing on the obtained results, we conclude that during 2008/2009 there was a neneral reverse trend in AW parameters towards mean climatic results.
Published: 2011

19. Ekstremaľnye izmeneniya temperatury i solenosti vody arkticheskogo poverkhnostnogo sloya v 2007-2009 gg. (The extreme changes of temperature and salinity in the Arctic Ocean surface layer in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Chernyavskaya, Ekaterina A., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., and Chernyavskaya, Ekaterina A.
Abstract: This paper examines the temperature and salinity patterns and evolution in the surface layer of the Arctic Ocean in 2007-2009 and deals with the factors impacting the extreme changes both in temperature and salinity in 2007. The large areas of positive and negative anomalies in temperature and salinity have been formed over the Arctic Ocean with the apparant frontal barrier areea between Eurasian and American basins. The followed years (2008-2009) exhibit the reducing of thermohaline anomalies between the two basins assuming gradually rcovering to the initial state. Considering the mean salinities within 5-50 m depth one can claim that the positive linear trend is evident both in Eurasian and American basinss since 1950 to 1993 while the intensive freshening was obsserved in American basin in 2007-2009. We intend that these changes in salinity can be assumed as the signature of non-stationary nature of all Arctic marine environments.
Published: 2011

20. [the Arctic] Ocean [in: State of the Climate in 2010]

Author: Proshutinsky, A., Timmermans, M.-L., Ashik, I., Beszczynska-Moeller, A., Carmack, E., Frolov, I., Itoh, M., Kikuchi, T., Krishfield, R., McLaughlin, F., Nishino, S., Rabe, B., Schauer, U., Shimada, K., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Yamamoto-Kawai, M., Zimmermann, S., Proshutinsky, A., Timmermans, M.-L., Ashik, I., Beszczynska-Moeller, A., Carmack, E., Frolov, I., Itoh, M., Kikuchi, T., Krishfield, R., McLaughlin, F., Nishino, S., Rabe, B., Schauer, U., Shimada, K., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Yamamoto-Kawai, M., and Zimmermann, S.
Published: 2011

21. NOWCAST: Fate of early 2000s Arctic warm water pulse.

Author: Polyakov, I. V., Alexeev, V. A., Ashik, I. M., Bacon, S., Beszczynska-Möller, Agnieszka, Carmack, E. C., Dmitrenko, I. A., Fortier, L., Gascard, J. C., Hansen, E., Hölemann, Jens, Ivanov, V. V., Kikuchi, T., Kirillov, S., Lenn, Y. D., McLaughlin, F. A., Piechura, J., Repina, I., Timokhov, L. A., Walczowski, W., Woodgate, R., Polyakov, I. V., Alexeev, V. A., Ashik, I. M., Bacon, S., Beszczynska-Möller, Agnieszka, Carmack, E. C., Dmitrenko, I. A., Fortier, L., Gascard, J. C., Hansen, E., Hölemann, Jens, Ivanov, V. V., Kikuchi, T., Kirillov, S., Lenn, Y. D., McLaughlin, F. A., Piechura, J., Repina, I., Timokhov, L. A., Walczowski, W., and Woodgate, R.
Published: 2011

22. Sostoyanie sloya atlanticheskikh vod v Severnom Ledovitom okeane v 2007-2009 gg. (The state of Atlantic water layer in the Arctic Ocean in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., and Sokolov, V. T.
Abstract: Oceanographic studies during IPY 2007/2009 provided new information on spatial variability of hydrographic parameters. Detailed pattern of irregularities in the Atlantic Water (AW) layer was documented in the Nansen Basin. Spatial scales of temperature distribution and the depth of the upper boundary of AW were estimated. In the Canadian Basin spatial variations of temperature were less pronounced. During IPY 2007/2008 the area occupied by AW has increased. According to our estimations the positive temperature anomaly in some regions was as high as 1,5°C, which is about 70% of temperature maximum in 1950-1959. The upper boundary of AW (zero degree isotherm) rose by 40-120 m around the Mendeleyev Ridge and in the Amundsen Basin. At the same time, in the Canada Basin and in the western Fram Strait the AW thickness decreased by similar value. Heat content of the AW layer around the major part of the Arctic Ocean exceeded mean climatic value, except for the compact area north of Franz Josef Land, where small negative anomaly was observed. Throughout 2008 mean temperature and maximum temperature in the AW layer were higher than mean climatic values. At the same time, the state of AW layer in the inflow region, east of Fram Strait along the continental margin to the Laptev Sea, substantially changed in comparison with 2007. Mean and maximum temperature of AW dropped by 0,25/0,5°C. Heat content and the Thickness of AW layer have also decreased. Basing on the obtained results, we conclude that during 2008/2009 there was a neneral reverse trend in AW parameters towards mean climatic results.
Published: 2011

23. Ekstremaľnye izmeneniya temperatury i solenosti vody arkticheskogo poverkhnostnogo sloya v 2007-2009 gg. (The extreme changes of temperature and salinity in the Arctic Ocean surface layer in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Chernyavskaya, Ekaterina A., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., and Chernyavskaya, Ekaterina A.
Abstract: This paper examines the temperature and salinity patterns and evolution in the surface layer of the Arctic Ocean in 2007-2009 and deals with the factors impacting the extreme changes both in temperature and salinity in 2007. The large areas of positive and negative anomalies in temperature and salinity have been formed over the Arctic Ocean with the apparant frontal barrier areea between Eurasian and American basins. The followed years (2008-2009) exhibit the reducing of thermohaline anomalies between the two basins assuming gradually rcovering to the initial state. Considering the mean salinities within 5-50 m depth one can claim that the positive linear trend is evident both in Eurasian and American basinss since 1950 to 1993 while the intensive freshening was obsserved in American basin in 2007-2009. We intend that these changes in salinity can be assumed as the signature of non-stationary nature of all Arctic marine environments.
Published: 2011

24. Sostoyanie sloya atlanticheskikh vod v Severnom Ledovitom okeane v 2007-2009 gg. (The state of Atlantic water layer in the Arctic Ocean in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., and Sokolov, V. T.
Abstract: Oceanographic studies during IPY 2007/2009 provided new information on spatial variability of hydrographic parameters. Detailed pattern of irregularities in the Atlantic Water (AW) layer was documented in the Nansen Basin. Spatial scales of temperature distribution and the depth of the upper boundary of AW were estimated. In the Canadian Basin spatial variations of temperature were less pronounced. During IPY 2007/2008 the area occupied by AW has increased. According to our estimations the positive temperature anomaly in some regions was as high as 1,5°C, which is about 70% of temperature maximum in 1950-1959. The upper boundary of AW (zero degree isotherm) rose by 40-120 m around the Mendeleyev Ridge and in the Amundsen Basin. At the same time, in the Canada Basin and in the western Fram Strait the AW thickness decreased by similar value. Heat content of the AW layer around the major part of the Arctic Ocean exceeded mean climatic value, except for the compact area north of Franz Josef Land, where small negative anomaly was observed. Throughout 2008 mean temperature and maximum temperature in the AW layer were higher than mean climatic values. At the same time, the state of AW layer in the inflow region, east of Fram Strait along the continental margin to the Laptev Sea, substantially changed in comparison with 2007. Mean and maximum temperature of AW dropped by 0,25/0,5°C. Heat content and the Thickness of AW layer have also decreased. Basing on the obtained results, we conclude that during 2008/2009 there was a neneral reverse trend in AW parameters towards mean climatic results.
Published: 2011

25. Ekstremaľnye izmeneniya temperatury i solenosti vody arkticheskogo poverkhnostnogo sloya v 2007-2009 gg. (The extreme changes of temperature and salinity in the Arctic Ocean surface layer in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Chernyavskaya, Ekaterina A., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., and Chernyavskaya, Ekaterina A.
Abstract: This paper examines the temperature and salinity patterns and evolution in the surface layer of the Arctic Ocean in 2007-2009 and deals with the factors impacting the extreme changes both in temperature and salinity in 2007. The large areas of positive and negative anomalies in temperature and salinity have been formed over the Arctic Ocean with the apparant frontal barrier areea between Eurasian and American basins. The followed years (2008-2009) exhibit the reducing of thermohaline anomalies between the two basins assuming gradually rcovering to the initial state. Considering the mean salinities within 5-50 m depth one can claim that the positive linear trend is evident both in Eurasian and American basinss since 1950 to 1993 while the intensive freshening was obsserved in American basin in 2007-2009. We intend that these changes in salinity can be assumed as the signature of non-stationary nature of all Arctic marine environments.
Published: 2011

26. Sostoyanie sloya atlanticheskikh vod v Severnom Ledovitom okeane v 2007-2009 gg. (The state of Atlantic water layer in the Arctic Ocean in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., and Sokolov, V. T.
Abstract: Oceanographic studies during IPY 2007/2009 provided new information on spatial variability of hydrographic parameters. Detailed pattern of irregularities in the Atlantic Water (AW) layer was documented in the Nansen Basin. Spatial scales of temperature distribution and the depth of the upper boundary of AW were estimated. In the Canadian Basin spatial variations of temperature were less pronounced. During IPY 2007/2008 the area occupied by AW has increased. According to our estimations the positive temperature anomaly in some regions was as high as 1,5°C, which is about 70% of temperature maximum in 1950-1959. The upper boundary of AW (zero degree isotherm) rose by 40-120 m around the Mendeleyev Ridge and in the Amundsen Basin. At the same time, in the Canada Basin and in the western Fram Strait the AW thickness decreased by similar value. Heat content of the AW layer around the major part of the Arctic Ocean exceeded mean climatic value, except for the compact area north of Franz Josef Land, where small negative anomaly was observed. Throughout 2008 mean temperature and maximum temperature in the AW layer were higher than mean climatic values. At the same time, the state of AW layer in the inflow region, east of Fram Strait along the continental margin to the Laptev Sea, substantially changed in comparison with 2007. Mean and maximum temperature of AW dropped by 0,25/0,5°C. Heat content and the Thickness of AW layer have also decreased. Basing on the obtained results, we conclude that during 2008/2009 there was a neneral reverse trend in AW parameters towards mean climatic results.
Published: 2011

27. Ekstremaľnye izmeneniya temperatury i solenosti vody arkticheskogo poverkhnostnogo sloya v 2007-2009 gg. (The extreme changes of temperature and salinity in the Arctic Ocean surface layer in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Chernyavskaya, Ekaterina A., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., and Chernyavskaya, Ekaterina A.
Abstract: This paper examines the temperature and salinity patterns and evolution in the surface layer of the Arctic Ocean in 2007-2009 and deals with the factors impacting the extreme changes both in temperature and salinity in 2007. The large areas of positive and negative anomalies in temperature and salinity have been formed over the Arctic Ocean with the apparant frontal barrier areea between Eurasian and American basins. The followed years (2008-2009) exhibit the reducing of thermohaline anomalies between the two basins assuming gradually rcovering to the initial state. Considering the mean salinities within 5-50 m depth one can claim that the positive linear trend is evident both in Eurasian and American basinss since 1950 to 1993 while the intensive freshening was obsserved in American basin in 2007-2009. We intend that these changes in salinity can be assumed as the signature of non-stationary nature of all Arctic marine environments.
Published: 2011

28. Sostoyanie sloya atlanticheskikh vod v Severnom Ledovitom okeane v 2007-2009 gg. (The state of Atlantic water layer in the Arctic Ocean in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Garmanov, A.L., Dmitrenko, Igor A., Ivanov, V. V., Kirillov, Sergey A., Polyakov, Igor V., and Sokolov, V. T.
Abstract: Oceanographic studies during IPY 2007/2009 provided new information on spatial variability of hydrographic parameters. Detailed pattern of irregularities in the Atlantic Water (AW) layer was documented in the Nansen Basin. Spatial scales of temperature distribution and the depth of the upper boundary of AW were estimated. In the Canadian Basin spatial variations of temperature were less pronounced. During IPY 2007/2008 the area occupied by AW has increased. According to our estimations the positive temperature anomaly in some regions was as high as 1,5°C, which is about 70% of temperature maximum in 1950-1959. The upper boundary of AW (zero degree isotherm) rose by 40-120 m around the Mendeleyev Ridge and in the Amundsen Basin. At the same time, in the Canada Basin and in the western Fram Strait the AW thickness decreased by similar value. Heat content of the AW layer around the major part of the Arctic Ocean exceeded mean climatic value, except for the compact area north of Franz Josef Land, where small negative anomaly was observed. Throughout 2008 mean temperature and maximum temperature in the AW layer were higher than mean climatic values. At the same time, the state of AW layer in the inflow region, east of Fram Strait along the continental margin to the Laptev Sea, substantially changed in comparison with 2007. Mean and maximum temperature of AW dropped by 0,25/0,5°C. Heat content and the Thickness of AW layer have also decreased. Basing on the obtained results, we conclude that during 2008/2009 there was a neneral reverse trend in AW parameters towards mean climatic results.
Published: 2011

29. Ekstremaľnye izmeneniya temperatury i solenosti vody arkticheskogo poverkhnostnogo sloya v 2007-2009 gg. (The extreme changes of temperature and salinity in the Arctic Ocean surface layer in 2007-2009, in Russian)

Author: Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., Chernyavskaya, Ekaterina A., Frolov, I. Ye., Timokhov, Leonid A., Ashik, I. M., Karpy, V. Yu., Kassens, Heidemarie, Kirillov, Sergey A., Polyakov, Igor V., Sokolov, V. T., and Chernyavskaya, Ekaterina A.
Abstract: This paper examines the temperature and salinity patterns and evolution in the surface layer of the Arctic Ocean in 2007-2009 and deals with the factors impacting the extreme changes both in temperature and salinity in 2007. The large areas of positive and negative anomalies in temperature and salinity have been formed over the Arctic Ocean with the apparant frontal barrier areea between Eurasian and American basins. The followed years (2008-2009) exhibit the reducing of thermohaline anomalies between the two basins assuming gradually rcovering to the initial state. Considering the mean salinities within 5-50 m depth one can claim that the positive linear trend is evident both in Eurasian and American basinss since 1950 to 1993 while the intensive freshening was obsserved in American basin in 2007-2009. We intend that these changes in salinity can be assumed as the signature of non-stationary nature of all Arctic marine environments.
Published: 2011

30. Anomalous changes of the Arctic Ocean and Siberian seas during IPY 2007/2008 and possible consequences

Author: Timokhov, Leonid, Ashik, I., Dmitrenko, Igor, Kassens, Heidemarie, Hoelemann, Jens A., Kirillov, Sergey, Novikhin, Andrey, Polyakov, Igor, Sokolov, V. T., Timokhov, Leonid, Ashik, I., Dmitrenko, Igor, Kassens, Heidemarie, Hoelemann, Jens A., Kirillov, Sergey, Novikhin, Andrey, Polyakov, Igor, and Sokolov, V. T.
Published: 2010

31. Anomalous variations in the thermohaline structure of the Arctic Ocean (Aus dem Russ. übersetzt)

Author: Frolov, I. E., Ashik, I. M., Kassens, Heidemarie, Polyakov, Igor V., Proshutinsky, A. Yu., Sokolov, V. T., Timokhov, Leonid A., Frolov, I. E., Ashik, I. M., Kassens, Heidemarie, Polyakov, Igor V., Proshutinsky, A. Yu., Sokolov, V. T., and Timokhov, Leonid A.
Abstract: Introduction: In the last two decades, significant changes have occurred in the Arctic Ocean as well as in the entire Arctic region. The ice cover of Arctic seas, which was gradually (linearly) decreasing from the beginning of the 20th century to the end of it [1], began to shrink rapidly in the 1990s and in the 21st century [2]. Salinity variations in the upper layer changed sign in different regions [3]. The temperature of Atlantic waters in the Arctic basin started to increase. At the end of the 1990s, stabilization of Atlantic water transport to the Arctic Basin was observed [4], but starting from 2004, the temperature of Atlantic waters in the Eurasian sub-basin increased even more and reached values that had not been observed here previously [5]. In 2007, extreme summer processes in the Arctic that followed this increase and anomalous state of the ice cover and upper layer of the ocean that were formed by the beginning of autumn put forward a pressing problem to evaluate the variation in the thermohaline structure of the Arctic Ocean as a whole.
Published: 2009
Full Text: View/download PDF

32. Anomalous variations in the thermohaline structure of the Arctic Ocean (Aus dem Russ. übersetzt)

Author: Frolov, I. E., Ashik, I. M., Kassens, Heidemarie, Polyakov, Igor V., Proshutinsky, A. Yu., Sokolov, V. T., Timokhov, Leonid A., Frolov, I. E., Ashik, I. M., Kassens, Heidemarie, Polyakov, Igor V., Proshutinsky, A. Yu., Sokolov, V. T., and Timokhov, Leonid A.
Abstract: Introduction: In the last two decades, significant changes have occurred in the Arctic Ocean as well as in the entire Arctic region. The ice cover of Arctic seas, which was gradually (linearly) decreasing from the beginning of the 20th century to the end of it [1], began to shrink rapidly in the 1990s and in the 21st century [2]. Salinity variations in the upper layer changed sign in different regions [3]. The temperature of Atlantic waters in the Arctic basin started to increase. At the end of the 1990s, stabilization of Atlantic water transport to the Arctic Basin was observed [4], but starting from 2004, the temperature of Atlantic waters in the Eurasian sub-basin increased even more and reached values that had not been observed here previously [5]. In 2007, extreme summer processes in the Arctic that followed this increase and anomalous state of the ice cover and upper layer of the ocean that were formed by the beginning of autumn put forward a pressing problem to evaluate the variation in the thermohaline structure of the Arctic Ocean as a whole.
Published: 2009
Full Text: View/download PDF

33. The complex estimation of climatic change in the Arctic according to IPY 2007/08 data (in Russian)

Author: Alekseev, G. V., Pnyushkov, A. V., Ivanov, N. E., Ashik, I. M., Sokolov, V. T., Golovin, P. N., Bogorodsky, P. V., Alekseev, G. V., Pnyushkov, A. V., Ivanov, N. E., Ashik, I. M., Sokolov, V. T., Golovin, P. N., and Bogorodsky, P. V.
Published: 2009

34. Anomalous variations in the thermohaline structure of the Arctic Ocean (Aus dem Russ. übersetzt)

Author: Frolov, I. E., Ashik, I. M., Kassens, Heidemarie, Polyakov, Igor V., Proshutinsky, A. Yu., Sokolov, V. T., Timokhov, Leonid A., Frolov, I. E., Ashik, I. M., Kassens, Heidemarie, Polyakov, Igor V., Proshutinsky, A. Yu., Sokolov, V. T., and Timokhov, Leonid A.
Abstract: Introduction: In the last two decades, significant changes have occurred in the Arctic Ocean as well as in the entire Arctic region. The ice cover of Arctic seas, which was gradually (linearly) decreasing from the beginning of the 20th century to the end of it [1], began to shrink rapidly in the 1990s and in the 21st century [2]. Salinity variations in the upper layer changed sign in different regions [3]. The temperature of Atlantic waters in the Arctic basin started to increase. At the end of the 1990s, stabilization of Atlantic water transport to the Arctic Basin was observed [4], but starting from 2004, the temperature of Atlantic waters in the Eurasian sub-basin increased even more and reached values that had not been observed here previously [5]. In 2007, extreme summer processes in the Arctic that followed this increase and anomalous state of the ice cover and upper layer of the ocean that were formed by the beginning of autumn put forward a pressing problem to evaluate the variation in the thermohaline structure of the Arctic Ocean as a whole.
Published: 2009
Full Text: View/download PDF

35. The complex estimation of climatic change in the Arctic according to IPY 2007/08 data (in Russian)

Author: Alekseev, G. V., Pnyushkov, A. V., Ivanov, N. E., Ashik, I. M., Sokolov, V. T., Golovin, P. N., Bogorodsky, P. V., Alekseev, G. V., Pnyushkov, A. V., Ivanov, N. E., Ashik, I. M., Sokolov, V. T., Golovin, P. N., and Bogorodsky, P. V.
Published: 2009

36. Summer 2007 and 2008: the temperature and salinity anomalies in the Arctic Ocean and the affecting factors (sources?)

Author: Timokhov, Leonid A., Ashik, I., Danilov, A., Dmitrenko, Igor, Hoelemann, Jens A., Ivanov, V. V., Kirillov, Sergey, Novikhin, Andrey, Polyakov, Igor V., Sokolov, V., Timokhov, Leonid A., Ashik, I., Danilov, A., Dmitrenko, Igor, Hoelemann, Jens A., Ivanov, V. V., Kirillov, Sergey, Novikhin, Andrey, Polyakov, Igor V., and Sokolov, V.
Published: 2009

37. Summer 2007 and 2008: the temperature and salinity anomalies in the Arctic Ocean and the affecting factors (sources?)

Author: Timokhov, Leonid A., Ashik, I., Danilov, A., Dmitrenko, Igor, Hoelemann, Jens A., Ivanov, V. V., Kirillov, Sergey, Novikhin, Andrey, Polyakov, Igor V., Sokolov, V., Timokhov, Leonid A., Ashik, I., Danilov, A., Dmitrenko, Igor, Hoelemann, Jens A., Ivanov, V. V., Kirillov, Sergey, Novikhin, Andrey, Polyakov, Igor V., and Sokolov, V.
Published: 2009

38. Anomalous variations in the thermohaline structure of the Arctic Ocean (Aus dem Russ. übersetzt)

Author: Frolov, I. E., Ashik, I. M., Kassens, Heidemarie, Polyakov, Igor V., Proshutinsky, A. Yu., Sokolov, V. T., Timokhov, Leonid A., Frolov, I. E., Ashik, I. M., Kassens, Heidemarie, Polyakov, Igor V., Proshutinsky, A. Yu., Sokolov, V. T., and Timokhov, Leonid A.
Abstract: Introduction: In the last two decades, significant changes have occurred in the Arctic Ocean as well as in the entire Arctic region. The ice cover of Arctic seas, which was gradually (linearly) decreasing from the beginning of the 20th century to the end of it [1], began to shrink rapidly in the 1990s and in the 21st century [2]. Salinity variations in the upper layer changed sign in different regions [3]. The temperature of Atlantic waters in the Arctic basin started to increase. At the end of the 1990s, stabilization of Atlantic water transport to the Arctic Basin was observed [4], but starting from 2004, the temperature of Atlantic waters in the Eurasian sub-basin increased even more and reached values that had not been observed here previously [5]. In 2007, extreme summer processes in the Arctic that followed this increase and anomalous state of the ice cover and upper layer of the ocean that were formed by the beginning of autumn put forward a pressing problem to evaluate the variation in the thermohaline structure of the Arctic Ocean as a whole.
Published: 2009
Full Text: View/download PDF

39. State of the climate in 2013

Author: Blunden, J., Arndt, D. S., Willett, K. M., Dolman, A. J., Hurst, D. F., Rennie, J., Thorne, P. W., Donat, M. G., Dunn, R. J. H., Long, C. S., Christy, J. R., Noetzli, J., Christiansen, H. H., Gugliemin, M., Romanovsky, V. E., Shiklomanov, N. I., Smith, S. L., Zhao, L., Robinson, D. A., Pelto, M. S., Mears, C. A., Ho, S.-O. B., Peng, L., Wang, J., Vose, R. S., Hilburn, K., Yin, X., Kruk, M. C., Becker, A., Foster, M. J., Ackerman, S. A., Heidinger, A. K., Maddux, B. C., Stengel, M., Kim, H., Oki, T., Rodell, M., Chambers, D. P., Famiglietti, J. S., Dorigo, W. A., Chung, D., Parinussa, R. M., Reimer, C., Hahn, S., Liu, Y. Y., Wagner, W. W., de Jeu, R. A. M., Paulik, C., Wang, G., Allan, R., Folland, C. K., Tobin, I., Berrisford, P., Vautard, R., McVicar, T. R., Kratz, D. P., Stackhouse, P.W., Wong, T., Sawaengphokhai, P., Wilber, A. C., Gupta, S. K., Loeb, N. G., Lantz, K. O., Dlugokencky, E. J., Hall, B. D., Montzka, S. A., Dutton, G. S., MÃ¼hle, J., Elkins, J. W., Benedetti, A., Jones, L. T., Kaiser, J. W., Morcrette, J.-J., Remy, S., Weber, M., Steinbrecht, W., van der A., R. J., Coldewey-Egbers, M., Fioletov, V. E., Frith, S. M., Loyola, D., Wild, J. D., Davis, S. M., Rosenlof, K. H., Cooper, O. R., Ziemke, J., Flemming, J., Inness, A., Quegan, S., Ciais, P., Santoro, M., Pinty, B., Gobron, N., van der Werf, G. R., Newlin, M. L., Gregg, M. C., Xue, Y., Hu, Z.-Z., Kumar, A., Banzon, V., Smith, T. M., Rayner, N. A., Johnson, G. C., Lyman, J. M., Willis, J. K., Boyer, T., Antonov, J., Good, S. A., Domingues, C. M., Bindoff, N., Yu, L., Jin, X., Lagerloef, G. S. E., Kao, H.-Y., Reagan, J., Schmid, C., Locarnini, R., Lumpkin, R., Goni, G., Dohan, K., Baringer, M. O., McCarthy, G., Lankhorst, M., Smeed, D. A., Send, U., Rayner, D., Johns, W. E., Meinen, C. S., Cunningham, S. A., Kanzow, T. O., Frajka-Williams, E., Marotzke, J., Garzoli, S., Dong, S., Volkov, D., Hobbs, W. R., Merrifield, M. A., Thompson, P., Leuliette, E., Nerem, R. S., Hamlington, B., Mitchum, G. T., McInnes, K., Marra, J. J., Menendez, M., Sweet, W., Feely, R. A., Wanninkhof, R., Sabine, C. L., Mathis, J. T., Takahashi, T., Khatiwala, S., Franz, B. A., Behrenfeld, M. J., Siegel, D. A., Werdell, P. J., Diamond, H. J., Bell, G. D., L'Heureux, M., Halpert, M. S., Baxter, S., Gottschalck, J., Landsea, C. W., Goldenberg, S. B., Pasch, R. J., Blake, E. S., Schemm, J., Kimberlain, T. B., Schreck, C. J., Evans, T.E., Camargo, S. J., Gleason, K. L., Trewin, B. C., Lorrey, A. M., Fauchereau, N. C., Chappell, P. R., Ready, S., Goni, G. J., Knaff, J. A., Lin, I.-I., Wang, B., Mullan, A. B., Pezza, A. B., Coelho, C A. S., Wang, C., Fogarty, C. T., Klotzbach, P., Luo, J.-J., Lander, M. A., Guard, C. P. C., Jeffries, M. O., Richter-Menge, J., Overland, J., Key, J., Hanna, E., Hanssen-Bauer, I., Kim, B.-M., Kim, S.-J., Walsh, J., Wang, M., Bhatt, U. S., Liu, Y., Stone, R., Cox, C., Walden, V., Francis, J., Vavrus, S., Tang, Q., Bernhard, G., Manney, G., Grooss, J.-U., Muller, R., Heikkila, A., Johnsen, B., Koskela, T., Lakkala, K., Svendby, T., Dahlback, A., Bruhwiler, L., Laurila, T., Worthy, D., Quinn, P. K., Stohl, A., Baklanov, A., Flanner, M. G., Herber, A., Kupiainen, K., Law, K. S., Schmale, J., Sharma, S., Vestreng, V., Von Salzen, K., Perovich, D., Gerland, S., Hendricks, S., Meier, W., Nicolaus, M., Tschudi, M., Timmermans, M.-L., Ashik, I., Frolov, I., Ha, H. K., Ingvaldsen, R., Kikuchi, T., Kim, T. W., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Polyakov, I., Rabe, B., Schauer, U., Schlosser, P., Smethie, W. M., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Zimmerman, S., Cross, J. N., Evans, W., Anderson, L., Yamamoto-Kawai, M., Derksen, C., Brown, R., Luojus, K., Sharp, M., Wolken, G., Geai, M.-L., Burgess, D., Arendt, A., Wouters, B., Kohler, J., Andreassen, L. M., Tedesco, M., Box, J. E., Cappelen, J., Fettweis, X., Jensen, T. S., Mote, T., Rennermalm, A. K., Smith, L. C., van de Wal, R. S. W., Wahr, J., Duguay, C. R., Brown, L. C., Kang, K.-K., Kheyrollah Pour, H., Streletskiy, D. A., Drozdov, D. S., Malkova, G. V., Oberman, N. G., Kholodov, A. L., Marchenko, S. S., Fogt, R. L., Scambos, T.A., Clem, K.R., Barreira, S., Colwell, S., Keller, L.M., Lazzara, M.A., Setzer, A., Bromwich, D.H., Wang, S.-H., Wang, L., Liu, H., Wang, S., Shu, S., Massom, R.A., Reid, P., Stammerjohn, S., Lieser, J., Newman, P.A., Kramarova, N., Nash, E.R., Pitts, M.C., Johnson, B.f, Santee, M.L., Braathen, G.O., Campbell, G.G., Pope, A., Haran, T., Sanchez-Lugo, A., Renwick, J.A., Thiaw, W.M., Weaver, S.J., Vincent, L.A., Phillips, D., Whitewood, R., Crouch, J., Heim, Jr., Fenimore, C., Augustine, J., Pascual, R., Albanil, A., Vazquez, J.L., Lobato, R., Amador, J.A., Alfaro, E.J., Hidalgo, H.G., Duran-Quesada, A.M., Calderon, B., Rivera, I.L., Vega, C., Stephenson, T.S., Taylor, M.A., Trotman, A.R., Porter, A.O., Gonzalez, I.T., Spence, J.M., McLean, N., Campbell, J.D., Brown, G., Butler, M., Blenman, R.C., Aaron-Morrison, A.P., Marcellin-Honore, V., Martinez, R., Arevalo, J., Carrasco, G., Euscategui, C., Bazo, J., Nieto, J.J., Zambrano, E., Marengo, J.A., Alves, L.M., Espinoza, J.C., Ronchail, J., Bidegain, M., Stella, J.L., Penalba, O.C., Kabidi, K., Sayouri, A., Ebrahim, A., James, I.A., Dekaa, F.S., Sima, F., Coulibaly, K.A., Gitau, W., Chang'a, L., Oludhe, C.S., Ogallo, L.A., Atheru, Z., Ambenje, P., Kijazi, A., Ng'ongolo, H., Luhunga, P., Levira, P., Kruger, A., McBride, C., Rakotomavo, Z., Jumaux, G., Trachte, K., Bissolli, P., Obregon, A., Nitsche, H., Parker, D., Kennedy, J.J., Kendon, M., Trigo, R., Barriopedro, D., Ramos, A., Sensoy, S., Hovhannisyan, D., Bulygina, O.N., Khoshkam, M., Korshunova, N.N., Oyunjargal, L., Park, E.-H., Rahimzadeh, F., Rajeevan, M., Razuvaev, V.N., Revadekar, J.V., Srivastava, A.K., Yamada, R., Zhang, P., Tanaka, S., Yoshimatsu, K., Ohno, H., Ganter, C., Macara, G.R., McGree, S., Tobin, S., Blunden, J., Arndt, D. S., Willett, K. M., Dolman, A. J., Hurst, D. F., Rennie, J., Thorne, P. W., Donat, M. G., Dunn, R. J. H., Long, C. S., Christy, J. R., Noetzli, J., Christiansen, H. H., Gugliemin, M., Romanovsky, V. E., Shiklomanov, N. I., Smith, S. L., Zhao, L., Robinson, D. A., Pelto, M. S., Mears, C. A., Ho, S.-O. B., Peng, L., Wang, J., Vose, R. S., Hilburn, K., Yin, X., Kruk, M. C., Becker, A., Foster, M. J., Ackerman, S. A., Heidinger, A. K., Maddux, B. C., Stengel, M., Kim, H., Oki, T., Rodell, M., Chambers, D. P., Famiglietti, J. S., Dorigo, W. A., Chung, D., Parinussa, R. M., Reimer, C., Hahn, S., Liu, Y. Y., Wagner, W. W., de Jeu, R. A. M., Paulik, C., Wang, G., Allan, R., Folland, C. K., Tobin, I., Berrisford, P., Vautard, R., McVicar, T. R., Kratz, D. P., Stackhouse, P.W., Wong, T., Sawaengphokhai, P., Wilber, A. C., Gupta, S. K., Loeb, N. G., Lantz, K. O., Dlugokencky, E. J., Hall, B. D., Montzka, S. A., Dutton, G. S., MÃ¼hle, J., Elkins, J. W., Benedetti, A., Jones, L. T., Kaiser, J. W., Morcrette, J.-J., Remy, S., Weber, M., Steinbrecht, W., van der A., R. J., Coldewey-Egbers, M., Fioletov, V. E., Frith, S. M., Loyola, D., Wild, J. D., Davis, S. M., Rosenlof, K. H., Cooper, O. R., Ziemke, J., Flemming, J., Inness, A., Quegan, S., Ciais, P., Santoro, M., Pinty, B., Gobron, N., van der Werf, G. R., Newlin, M. L., Gregg, M. C., Xue, Y., Hu, Z.-Z., Kumar, A., Banzon, V., Smith, T. M., Rayner, N. A., Johnson, G. C., Lyman, J. M., Willis, J. K., Boyer, T., Antonov, J., Good, S. A., Domingues, C. M., Bindoff, N., Yu, L., Jin, X., Lagerloef, G. S. E., Kao, H.-Y., Reagan, J., Schmid, C., Locarnini, R., Lumpkin, R., Goni, G., Dohan, K., Baringer, M. O., McCarthy, G., Lankhorst, M., Smeed, D. A., Send, U., Rayner, D., Johns, W. E., Meinen, C. S., Cunningham, S. A., Kanzow, T. O., Frajka-Williams, E., Marotzke, J., Garzoli, S., Dong, S., Volkov, D., Hobbs, W. R., Merrifield, M. A., Thompson, P., Leuliette, E., Nerem, R. S., Hamlington, B., Mitchum, G. T., McInnes, K., Marra, J. J., Menendez, M., Sweet, W., Feely, R. A., Wanninkhof, R., Sabine, C. L., Mathis, J. T., Takahashi, T., Khatiwala, S., Franz, B. A., Behrenfeld, M. J., Siegel, D. A., Werdell, P. J., Diamond, H. J., Bell, G. D., L'Heureux, M., Halpert, M. S., Baxter, S., Gottschalck, J., Landsea, C. W., Goldenberg, S. B., Pasch, R. J., Blake, E. S., Schemm, J., Kimberlain, T. B., Schreck, C. J., Evans, T.E., Camargo, S. J., Gleason, K. L., Trewin, B. C., Lorrey, A. M., Fauchereau, N. C., Chappell, P. R., Ready, S., Goni, G. J., Knaff, J. A., Lin, I.-I., Wang, B., Mullan, A. B., Pezza, A. B., Coelho, C A. S., Wang, C., Fogarty, C. T., Klotzbach, P., Luo, J.-J., Lander, M. A., Guard, C. P. C., Jeffries, M. O., Richter-Menge, J., Overland, J., Key, J., Hanna, E., Hanssen-Bauer, I., Kim, B.-M., Kim, S.-J., Walsh, J., Wang, M., Bhatt, U. S., Liu, Y., Stone, R., Cox, C., Walden, V., Francis, J., Vavrus, S., Tang, Q., Bernhard, G., Manney, G., Grooss, J.-U., Muller, R., Heikkila, A., Johnsen, B., Koskela, T., Lakkala, K., Svendby, T., Dahlback, A., Bruhwiler, L., Laurila, T., Worthy, D., Quinn, P. K., Stohl, A., Baklanov, A., Flanner, M. G., Herber, A., Kupiainen, K., Law, K. S., Schmale, J., Sharma, S., Vestreng, V., Von Salzen, K., Perovich, D., Gerland, S., Hendricks, S., Meier, W., Nicolaus, M., Tschudi, M., Timmermans, M.-L., Ashik, I., Frolov, I., Ha, H. K., Ingvaldsen, R., Kikuchi, T., Kim, T. W., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Polyakov, I., Rabe, B., Schauer, U., Schlosser, P., Smethie, W. M., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Zimmerman, S., Cross, J. N., Evans, W., Anderson, L., Yamamoto-Kawai, M., Derksen, C., Brown, R., Luojus, K., Sharp, M., Wolken, G., Geai, M.-L., Burgess, D., Arendt, A., Wouters, B., Kohler, J., Andreassen, L. M., Tedesco, M., Box, J. E., Cappelen, J., Fettweis, X., Jensen, T. S., Mote, T., Rennermalm, A. K., Smith, L. C., van de Wal, R. S. W., Wahr, J., Duguay, C. R., Brown, L. C., Kang, K.-K., Kheyrollah Pour, H., Streletskiy, D. A., Drozdov, D. S., Malkova, G. V., Oberman, N. G., Kholodov, A. L., Marchenko, S. S., Fogt, R. L., Scambos, T.A., Clem, K.R., Barreira, S., Colwell, S., Keller, L.M., Lazzara, M.A., Setzer, A., Bromwich, D.H., Wang, S.-H., Wang, L., Liu, H., Wang, S., Shu, S., Massom, R.A., Reid, P., Stammerjohn, S., Lieser, J., Newman, P.A., Kramarova, N., Nash, E.R., Pitts, M.C., Johnson, B.f, Santee, M.L., Braathen, G.O., Campbell, G.G., Pope, A., Haran, T., Sanchez-Lugo, A., Renwick, J.A., Thiaw, W.M., Weaver, S.J., Vincent, L.A., Phillips, D., Whitewood, R., Crouch, J., Heim, Jr., Fenimore, C., Augustine, J., Pascual, R., Albanil, A., Vazquez, J.L., Lobato, R., Amador, J.A., Alfaro, E.J., Hidalgo, H.G., Duran-Quesada, A.M., Calderon, B., Rivera, I.L., Vega, C., Stephenson, T.S., Taylor, M.A., Trotman, A.R., Porter, A.O., Gonzalez, I.T., Spence, J.M., McLean, N., Campbell, J.D., Brown, G., Butler, M., Blenman, R.C., Aaron-Morrison, A.P., Marcellin-Honore, V., Martinez, R., Arevalo, J., Carrasco, G., Euscategui, C., Bazo, J., Nieto, J.J., Zambrano, E., Marengo, J.A., Alves, L.M., Espinoza, J.C., Ronchail, J., Bidegain, M., Stella, J.L., Penalba, O.C., Kabidi, K., Sayouri, A., Ebrahim, A., James, I.A., Dekaa, F.S., Sima, F., Coulibaly, K.A., Gitau, W., Chang'a, L., Oludhe, C.S., Ogallo, L.A., Atheru, Z., Ambenje, P., Kijazi, A., Ng'ongolo, H., Luhunga, P., Levira, P., Kruger, A., McBride, C., Rakotomavo, Z., Jumaux, G., Trachte, K., Bissolli, P., Obregon, A., Nitsche, H., Parker, D., Kennedy, J.J., Kendon, M., Trigo, R., Barriopedro, D., Ramos, A., Sensoy, S., Hovhannisyan, D., Bulygina, O.N., Khoshkam, M., Korshunova, N.N., Oyunjargal, L., Park, E.-H., Rahimzadeh, F., Rajeevan, M., Razuvaev, V.N., Revadekar, J.V., Srivastava, A.K., Yamada, R., Zhang, P., Tanaka, S., Yoshimatsu, K., Ohno, H., Ganter, C., Macara, G.R., McGree, S., and Tobin, S.
Abstract: In 2013, the vast majority of the monitored climate variables reported here maintained trends established in recent decades. ENSO was in a neutral state during the entire year, remaining mostly on the cool side of neutral with modest impacts on regional weather patterns around the world. This follows several years dominated by the effects of either La NiÃ±a or El NiÃ±o events. According to several independent analyses, 2013 was again among the 10 warmest years on record at the global scale, both at the Earths surface and through the troposphere. Some regions in the Southern Hemisphere had record or near-record high temperatures for the year. Australia observed its hottest year on record, while Argentina and New Zealand reported their second and third hottest years, respectively. In Antarctica, Amundsen-Scott South Pole Station reported its highest annual temperature since records began in 1957. At the opposite pole, the Arctic observed its seventh warmest year since records began in the early 20th century. At 20-m depth, record high temperatures were measured at some permafrost stations on the North Slope of Alaska and in the Brooks Range. In the Northern Hemisphere extratropics, anomalous meridional atmospheric circulation occurred throughout much of the year, leading to marked regional extremes of both temperature and precipitation. Cold temperature anomalies during winter across Eurasia were followed by warm spring temperature anomalies, which were linked to a new record low Eurasian snow cover extent in May. Minimum sea ice extent in the Arctic was the sixth lowest since satellite observations began in 1979. Including 2013, all seven lowest extents on record have occurred in the past seven years. Antarctica, on the other hand, had above-average sea ice extent throughout 2013, with 116 days of new daily high extent records, including a new daily maximum sea ice area of 19.57 million km2 reached on 1 October. ENSO-neutral conditions in the eastern central Pacific

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