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7. Natural ocean carbon cycle sensitivity to parameterizations of the recycling in a climate model.

Author

Romanou, A., Romanski, J., and Gregg, W. W.

Subjects
CARBON cycle, ATMOSPHERIC models, MERIDIONAL overturning circulation, PRIMARY productivity (Biology)
Abstract

Sensitivities of the oceanic biological pump within the GISS (Goddard Institute for Space Studies) climate modeling system are explored here. Results are presented from twin control simulations of the air-sea CO2 gas exchange using two different ocean models coupled to the same atmosphere. The two ocean models (Russell ocean model and Hybrid Coordinate Ocean Model, HYCOM) use different vertical coordinate systems, and therefore different representations of column physics. Both variants of the GISS climate model are coupled to the same ocean biogeochemistry module (the NASA Ocean Biogeochemistry Model, NOBM), which computes prognostic distributions for biotic and abiotic fields that influence the air-sea flux of CO2 and the deep ocean carbon transport and storage. In particular, the model differences due to remineralization rate changes are compared to differences attributed to physical processes modeled differently in the two ocean models such as ventilation, mixing, eddy stirring and vertical advection. GISSEH(GISSER) is found to underestimate mixed layer depth compared to observations by about 55% (10%) in the Southern Ocean and overestimate it by about 17% (underestimate by 2%) in the northern high latitudes. Everywhere else in the global ocean, the two models underestimate the surface mixing by about 12-34%, which prevents deep nutrients from reaching the surface and promoting primary production there. Consequently, carbon export is reduced because of reduced production at the surface. Furthermore, carbon export is particularly sensitive to remineralization rate changes in the frontal regions of the subtropical gyres and at the Equator and this sensitivity in the model is much higher than the sensitivity to physical processes such as vertical mixing, vertical advection and mesoscale eddy transport. At depth, GISSER, which has a significant warm bias, remineralizes nutrients and carbon faster thereby producing more nutrients and carbon at depth, which eventually resurfaces with the global thermohaline circulation especially in the Southern Ocean. Because of the reduced primary production and carbon export in GISSEH compared to GISSER, the biological pump efficiency, i.e., the ratio of primary production and carbon export at 75 m, is half in the GISSEH of that in GISSER, The Southern Ocean emerges as a key region where the CO2 flux is as sensitive to biological parameterizations as it is to physical parameterizations. The fidelity of ocean mixing in the Southern Ocean compared to observations is shown to be a good indicator of the magnitude of the biological pump efficiency regardless of physical model choice. [ABSTRACT FROM AUTHOR]

Published
2014
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8. Natural ocean carbon cycle sensitivity to parameterizations of the recycling in a climate model.

Author

Romanou, A., Romanski, J., and Gregg, W. W.

Subjects
CARBON cycle, PARAMETERIZATION, WASTE recycling, OCEANOGRAPHY, OCEAN-atmosphere interaction, ATMOSPHERIC carbon dioxide, ATMOSPHERIC models
Abstract

Sensitivities of the oceanic biological pump within the GISS climate modeling system are explored here. Results are presented from twin control simulations of the air-sea CO2 gas exchange using two different ocean models coupled to the same atmosphere. The two ocean models (Russell ocean model and Hybrid Coordinate Ocean Model, HY- COM) use different vertical coordinate systems, and therefore different representations of column physics. Both variants of the GISS climate model are coupled to the same ocean biogeochemistry module (the NASA Ocean Biogeochemistry Model, NOBM) which computes prognostic distributions for biotic and abiotic fields that influence the air-sea flux of CO2 and the deep ocean carbon transport and storage. In particular, the model differences due to remineralization rate changes are compared to differences attributed to physical processes modeled differently in the two ocean models such as ventilation, mixing, eddy stirring and vertical advection. The Southern Ocean emerges as a key region where the CO2 flux is as sensitive to biological parameterizations as it is to physical parameterizations. Mixing in the Southern Ocean is shown to be a good indicator of the magnitude of the biological pump efficiency regardless of physical model choice. [ABSTRACT FROM AUTHOR]

Published
2013
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10. Electric-octupoleLi inelastic transfer inAl+S collision at E =100 MeV.

Author

Albergo, S., Costa, S., Potenza, R., Romanski, J., Tuvè, C., Barnà, R., D'Amico, V., Pasquale, D., and Lombardi, M.

Abstract

The differential cross-section of the excitation of the first 3 level ofS at E =5.01 MeV in theAl+S collision at E =100 MeV was measured down to σ⋍10mb/sr. Backward oscillations are interpreted as interference with five-nucleon transfer. The analysis of the data is performed in the frame of EFR-DWBA. The deduced B(E3) ↑ value is in good agreement with that measured by other authors in the inverse transition. By phase analysis of the oscillations, the transfer seems to take place in more-than-one-step mechanism. [ABSTRACT FROM AUTHOR]

Published
1991
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11. Ar+S elastic scattering at E =100 MeV.

Author

Albergo, S., Costa, S., Potenza, R., Romanski, J., Strazzeri, A., Tuvè, C., Barnà, R., D'Amico, V., Pasquale, D., and Lombardi, M.

Abstract

Copyright of Il Nuovo Cimento: A is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
1989
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12. Electric-quadrupole inelastic transitions inAl+S collision at E =100 MeV.

Author

Albergo, S., Costa, S., Potenza, R., Romanski, J., Tuvè, C., Barnà, R., D'Amico, V., Pasquale, D., and Lombardi, M.

Abstract

Copyright of Il Nuovo Cimento: A is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
1989
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13. Li elastic transfer inAl+S collision at E =100 MeV.

Author

Albergo, S., Costa, S., Potenza, R., Romanski, J., Tuvè, C., Barnà, R., D'Amico, V., Pasquale, D., and Lombardi, M.

Abstract

Copyright of Il Nuovo Cimento: A is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
1989
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23. Observation of collective effects in Λ production at 2 GeV/nucleon

Author

Justice, M., Albergo, S., Bieser, F., Brady, F.P., Caccia, Z., Cebra, D., Chacon, A.D., Chance, J., Choi, Y., Costa, S., Elliott, J., Gilkes, M., Hauger, J., Hirsch, A., Hjort, E., Insolia, A., Keane, D., Kintner, J., Lisa, M., Liu, H., Matis, H.S., McGrath, R., McMahan, M., McParland, C., Olson, D., Partlan, M., Porile, N., Potenza, R., Rai, G., Rasmussen, J., Ritter, H.G., Romanski, J., Romero, J., Russo, G., Scharenberg, R., Scott, A., Shao, Y., Srivastava, B., Symons, T.J.M., Tincknell, M., Tuvè, C., Wang, S., Warren, P., Weerasundara, D., Wieman, H., and Wolf, K.

Published
1995
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24. The PHENIX experiment at RHIC

Author

Morrison, D.P., Akiba, Y., Alford, O., Allen, M., Allen, W., Alley, G., Arai, Y., Archuleta, J.B., Archuleta, J.R., Aronson, S.H., Statekin, I., Autrey, D., Awes, T.C., Barlag, C., Barrette, J., Bassalleck, B., Bathe, S., Batygin, Y., Baublis, V., Bazilevsky, A., Begay, R., Behrendt, J., Belikov, S., Bellavia, S., Belyaev, S., Bennett, M.J., Berdnikov, Y., Bernardin, J., Bluhm, D.D., Blume, C., Bohne, E.M., Boissevain, J.G., Bosze, E., Bowers, J., Branning, J., Britton, C.L., Brooks, M.L., Bryan, W.L., Bucher, D., Buesching, H., Bumazhnov, V., Bunce, G., Butsyk, S., Cafferty, M., Carey, T.A., Chand, P., Chang, J., Chang, W.-C., Chappell, R., Charagi, S.K., Chavez, L.L., Chernichenko, S., Chi, C.-Y., Chiba, J., Chikanian, A., Choudhury, R.K., Chung, M.S., Cianciolo, V., Clark, D., Claussen, A., Coe, S., Cole, B., Conway, R., Cope, L., Crook, D., Cunitz, H., Cunningham, R., Daniel, S.Q., David, G., Denisov, A., Desmond, E.J., Dietzsch, O., Dinesh, B.V., Durrant, S., Durum, A., Dutta, D., Efremenko, Y.V., Eiseman, S., Emery, M.S., Enosawa, K., En'yo, H., Ericson, M.N., Evseev, V., Ferriera, J., Fields, D.E., Filimonov, K., Fokin, S., Fong, D., Fraenkel, Z., Frank, S.S., Frawley, A.D., Fried, J., Fung, S.Y., Gan, D., Gannon, J., Gavin, S., Gee, T.F., Gim, B., Goto, Y., Greene, S.V., Gupta, S.K., Guryn, W., Gustafsson, H.-A., Gutnikov, Y., Haggerty, J.S., Hahn, S., Halliwell, J.W., Hamagaki, H., Hara, H., Harder, J., Harvey, A., Hatanaka, K., Hayano, R., Hayashi, N., Hayashi, H., Hazel, R., He, X.C., van Hecke, H.W., Heine, N., Held, S., Hemmick, T.K., Hibino, M., Hicks, J.S., Higuchi, R., Hill, J.C., Hirano, T., Holmes, R., Hong, B., Hutter, R., Ichihara, T., Ikeno, M., Imai, K., Inaba, M., Ippolitov, M., Ishihara, M., Ishikawa, T., Iwata, Y., Jacak, B., Jackson, G., Jacobs, C., Jaffe, D., Jagadish, U., James, G., Johnson, B.M., Johnson, J.W., Johnson, S., Jones, R.G., Jones, J.P., Jr., Kahn, S., Kamyshkov, Y.A., Kandasamy, A., Kaneta, M., Kang, J.H., Kann, M., Kapoor, S.S., Kapustinsky, J., Karadjev, K., Katayama, T., Kato, S., Kawaguchi, T., Kehoe, W.L., Kelley, M.A., Kennedy, M., Kennedy, E.J., Khanzadeev, A., Khomoutnikov, A., Kikuchi, J., Kim, S.Y., Kim, Y.G., Kinnison, W.W., Kirk, P.N., Kistenev, E., Kiyomichi, A., Klinksiek, S., Knapp, C., Kochenda, L., Kochetkov, V.I., Kohama, T., Komkov, B., Kozlov, V., Kozlowski, T., Kroon, P.J., Kudin, L., Kumar, S., Kurata, M., Kuriatkov, V., Kurita, K., Kyle, G.S., Lajoie, J.G., Landran, A., Lebedev, A., Lebedev, V., Lee, D.M., Lee, K.S., Lee, S.J., Leitch, M.J., Li, Q., Li, Z., Libkind, M., Lin, S.X., Lind, R., Liu, X., Lowe, J., Maguire, C.F., Makdisi, Y.I., Makeev, A., Makeev, V.V., Manko, V., Mao, Y., Marek, L.J., Mark, S.K., Markushin, D., Martin, R., Marx, M., Masaike, A., Matsumoto, T., McCabe, K., McClelland, J., McGaughey, P.L., McGrath, R., McMillan, D.E., Mead, J.A., Melnikov, E., Miake, Y., Miftakhov, N., Miller, T.J., Milov, A., Minuzzo, K., Mitchell, J.T., Miyamoto, Y., Miyamura, O., Mohanty, A.K., Montag, M., Moore, J.A., Morris, C., Morrison, L.J., Moscone, C., Moss, J.M., Mulhall, S.T., Mullins, L., Murray, M.M., Musrock, M.S., Nagamiya, S., Nagasaka, Y., Nagle, J.L., Nakada, Y., Nayak, T., Negrin, J.A., Nikkinen, L., Nikolaev, S., Nilsson, P., Nishimura, S., Noe, J.W., Nianine, A., Obenshain, F., O'Brien, E., O'Connor, P., Ohnishi, H., Ojha, I.D., Okamura, M., Onuchin, V., Oskarsson, A., Osterman, L., Otterlund, I., Oyama, K., Paffrath, L., Palmer, R., Pancake, C., Pantuev, V., Papavassiliou, V., Park, J.H., Pasmantirer, B., Pate, S.F., Patwa, A., Paul, P., Pearson, C., Peitzmann, T., Penumetcha, V., Perevoztchikov, V., Petersen, R., Petitt, G., Petridis, A., Pisani, R.P., Pitukhin, P., Plasil, F., Pollack, M., Pope, K., Posey, A., Prigl, R., Purschke, M.L., Qi, Y., Quigley, D.E., Rankowitz, S., Rao, G.S., Ravinovich, I., Read, K., Reygers, K., Riabov, Y., Riabov, V., Richardson, G., Robinson, S.H., Romanski, J., Rosati, M., Roschin, E., Rose, A.A., Ryu, S.S., Saito, N., Sakaguchi, T., Sakaguchi, A., Sakemi, Y., Sako, H., Sakuma, T., Salomone, S., Samsonov, V., Sangster, C., Santo, R., Sasaki, O., Sato, H.D., Sato, S., Satoh, H., Schlagheck, H., Schlei, B.R., Schleuter, R., Schmidt, J., Semenov, V., Seto, R., Shea, T.K., Shein, I., Shelikhov, V., Shibata, T.-A., Shigaki, K., Shiina, T., Shimada, T., Sibiriak, I., Sim, K.S., Simon-Gillo, J., Simpson, M.L., Singh, C.P., Singh, V., Sippach, F.W., Skank, H.D., Sleege, G.A., Smirnov, N., Smith, D.E., Smith, G., Smith, M.C., Smith, R., Smith, W., Soderstrom, K., Soeding, S., Soldatov, A., Solodov, G., Sondheim, W.E., Sorensen, S.P., Stankus, P.W., Starinski, N., Stenlund, E., Stueken, D., Stokes, W., Stoll, S.P., Stotzer, R., Sugitate, T., Sullivan, J.P., Sumi, Y., Sun, Z., Svensson, T., Takagui, E.M., Takahashi, Y., Takata, Y., Taketani, A., Tanaka, K.H., Tanaka, Y., Taniguchi, E., Tannenbaum, M.J., Tarakanov, V., Tarasenkova, O., Teodorescu, O., Teruhi, S., Thomas, J., Thomas, J.L., Thomas, T.L., Thomas, W.D., Tian, W., Tominaka, T., Tonse, S., Torii, H., Trivedi, A., Tserruya, I., Tsvetkov, A., Tuli, S.K., Tung, K., Turner, G.W., Tyurin, N., Uppiliappan, B., Urasawa, S., Usachev, A., Uto, H., Vaa, C., Vandermolen, R.I., Vasiliev, A., Vercelli, T., Verhoeven, W., Vinogradov, A., Vishnevskii, V., Vogt, R., Volkov, M., Vorobyov, A., Vznuzdaev, E., Wagner, N., Walker, J.W., II, Wang, Z.-F., Watanabe, Y., Wei, X., White, S.N., Whitehouse, D., Williamson, V., Wintenberg, A.L., Witzig, C., Wohn, F.K., Wolfe, D.M., Wong-Swanson, B.G., Wong, W., Woody, C.L., Writt, J., Wu, H., Xiao, M., Xu, G., Yagi, K., Yamamoto, R., Ye, Y., Yokoro, A., Yokota, Y., Young, G.R., Zajc, W.A., Zhang, L., Zhou, S., Zhu, Q., and Zou, C.

Published
1998
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25. Flow and multifragmentation in nuclear collisions at intermediate energies

Author

Ritter, H.G., Albergo, S., Bieser, F., Brady, F.P., Caccia, Z., Chacon, A.D., Chance, J.L., Choi, Y., Costa, S., Elliott, J.B., Gilkes, M.L., Hauger, J.A., Hirsch, A.S., Hjort, E.L., Insolia, A., Justice, M., Keane, D., Kintner, J., Lindenstruth, V., Lisa, M.A., Lynen, U., Matis, H.S., McMahan, M., McParland, C., Mueller, W.E.J., Olson, D.L., Partlan, M.D., Porile, N.T., Potenza, R., Rai, G., Rasmussen, J., Romanski, J., Romero, J.L., Russo, G.V., Sann, H., Scharenberg, R.P., Scott, A., Shao, Y., Srivastava, B.K., Symons, T.J.M., Tincknell, M.L., Tuvè, C., Wang, S., Warren, P.G., Wieman, H.H., and Wolf, K.L.

Published
1995
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26. Λ hyperons in 2 A GeV Ni + Cu collisions

Author

Justice, M., Albergo, S., Bieser, F., Brady, F.P., Caccia, Z., Cebra, D.A., Chacon, A.D., Chance, J.L., Choi, Y., Costa, S., Elliott, J.B., Gilkes, M.L., Hauger, J.A., Hirsch, A.S., Hjort, E.L., Insolia, A., Keane, D., Kintner, J.C., Lisa, M.A., Liu, H., Matis, H.S., McGrath, R., McMahan, M., McParland, C., Olson, D.L., Partlan, M.D., Porile, N.T., Potenza, R., Rai, G., Rasmussen, J.O., Ritter, H.G., Romanski, J., Romero, J.L., Russo, G.V., Scharenberg, R.P., Scott, A., Shao, Y., Srivastava, B.K., Symons, T.J.M., Tincknell, M., Tuvè, C., Wang, S., Warren, P.G., Weerasundara, D., Wieman, H.H., Wienold, T., and Wolf, K.

Published
1998
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27. The search for the scaling function in the multifragmentation of gold nuclei

Author

Elliott, J.B, Albergo, S, Bieser, F, Brady, F.P, Caccia, Z, Cebra, D.A, Chacon, A.D, Chance, J.L, Choi, Y, Costa, S, Gilkes, M.L, Hauger, J.A, Hirsch, A.S, Hjort, E.L, Insolia, A, Justice, M, Keane, D, Kintner, J.C, Lindenstruth, V, Lisa, M.A, Matis, H.S, McMahan, M, McParland, C, Müller, W.F.J, Olson, D.L, Partlan, M.D, Porile, N.T, Potenza, R, Rai, G, Rasmussen, J, Ritter, H.G, Romanski, J, Romero, J.L, Russo, G.V, Sann, H, Scharenberg, R.P, Scott, A, Shao, Y, Srivastava, B.K, Symons, T.J.M, Tincknell, M, Tuvé, C, Wang, S, Warren, P.G, Wieman, H.H, Wienold, T, and Wolf, K

Published
1998
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43. Natural air–sea flux of CO2 in simulations of the NASA-GISS climate model: Sensitivity to the physical ocean model formulation.

Author

Romanou, A., Gregg, W.W., Romanski, J., Kelley, M., Bleck, R., Healy, R., Nazarenko, L., Russell, G., Schmidt, G.A., Sun, S., and Tausnev, N.

Subjects
*OCEAN-atmosphere interaction, *ATMOSPHERIC carbon dioxide, *SIMULATION methods & models, *ATMOSPHERIC models, *MATHEMATICAL models of oceanography
Abstract

Abstract: Results from twin control simulations of the preindustrial CO2 gas exchange (natural flux of CO2) between the ocean and the atmosphere are presented here using the NASA-GISS climate model, in which the same atmospheric component (modelE2) is coupled to two different ocean models, the Russell ocean model and HYCOM. Both incarnations of the GISS climate model are also coupled to the same ocean biogeochemistry module (NOBM) which estimates prognostic distributions for biotic and abiotic fields that influence the air–sea flux of CO2. Model intercomparison is carried out at equilibrium conditions and model differences are contrasted with biases from present day climatologies. Although the models agree on the spatial patterns of the air–sea flux of CO2, they disagree on the strength of the North Atlantic and Southern Ocean sinks mainly because of kinematic (winds) and chemistry (pCO2) differences rather than thermodynamic (SST) ones. Biology/chemistry dissimilarities in the models stem from the different parameterizations of advective and diffusive processes, such as overturning, mixing and horizontal tracer advection and to a lesser degree from parameterizations of biogeochemical processes such as gravitational settling and sinking. The global meridional overturning circulation illustrates much of the different behavior of the biological pump in the two models, together with differences in mixed layer depth which are responsible for different SST, DIC and nutrient distributions in the two models and consequently different atmospheric feedbacks (in the wind, net heat and freshwater fluxes into the ocean). [Copyright &y& Elsevier]

Published
2013
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