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Your search keyword '"Pedreros, Diego"' showing total 18 results
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18 results on '"Pedreros, Diego"'

1. Introducing and Evaluating the Climate Hazards Center IMERG with Stations (CHIMES) : Timely Station-Enhanced Integrated Multisatellite Retrievals for Global Precipitation Measurement

Author

Funk, Chris C., Peterson, Pete, Huffman, George J., Landsfeld, Martin Francis, Peters-Lidard, Christa, Davenport, Frank, Shukla, Shraddhanand, Peterson, Seth, Pedreros, Diego H., Ruane, Alex C., Mutter, Carolyn, Turner, Will, Harrison, Laura, Sonnier, Austin, Way-Henthorne, Juliet, and Husak, Gregory J.

Published
2022

2. Algorithm and Data Improvements for Version 2.1 of the Climate Hazards Center’s InfraRed Precipitation with Stations Data Set

Author

Funk, Chris, Peterson, Pete, Landsfeld, Martin, Davenport, Frank, Becker, Andreas, Schneider, Udo, Pedreros, Diego, McNally, Amy, Arsenault, Kristi, Harrison, Laura, Shukla, Shraddhanand, Stoffel, Markus, Series Editor, Cramer, Wolfgang, Advisory Editor, Luterbacher, Urs, Advisory Editor, Toth, F., Advisory Editor, Levizzani, Vincenzo, editor, Kidd, Christopher, editor, Kirschbaum, Dalia B., editor, Kummerow, Christian D., editor, Nakamura, Kenji, editor, and Turk, F. Joseph, editor

Published
2020
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4. RECOGNIZING THE FAMINE EARLY WARNING SYSTEMS NETWORK : Over 30 Years of Drought Early Warning Science Advances and Partnerships Promoting Global Food Security

Author

Funk, Chris, Shukla, Shraddhanand, Thiaw, Wassila Mamadou, Rowland, James, Hoell, Andrew, McNally, Amy, Husak, Gregory, Novella, Nicholas, Budde, Michael, Peters-Lidard, Christa, Adoum, Aklhalil, Galu, Gideon, Korecha, Diriba, Magadzire, Tamuka, Rodriguez, Mario, Robjhon, Miliaritiana, Bekele, Endalkachew, Arsenault, Kristi, Peterson, Pete, Harrison, Laura, Fuhrman, Steven, Davenport, Frank, Landsfeld, Marty, Pedreros, Diego, Jacob, Jossy P., Reynolds, Curt, Becker-Reshef, Inbal, and Verdin, James

Published
2019

5. EXPLAINING EXTREME EVENTS OF 2017 : From A Climate Perspective

Author

Herring, Stephanie C., Christidis, Nikolaos, Hoell, Andrew, Hoerling, Marty, Stott, Peter A., Owen, Rebecca, Vano, Julie A., Dettinger, Michael D., Cifelli, Rob, Curtis, David, Dufour, Alexis, Miller, Kathleen, Olsen, J. Rolf, Wilson, Anna M., Nerem, R. S., Fasullo, J., Hoell, Andrew, Perlwitz, Judith, Dewes, Candida, Wolter, Klaus, Rangwala, Imtiaz, Quan, Xiao-Wei, Eischeid, Jon, Wang, Hailan, Schubert, Siegfried D., Koster, Randal D., Chang, Yehui, Christidis, Nikolaos, Betts, Richard A., Stott, Peter A., de Abreu, Rafael C., Cunningham, Christopher, Rudorff, Conrado M., Rudorff, Natalia, Abatan, Abayomi A., Dong, Buwen, Lott, Fraser C., Tett, Simon F. B., Sparrow, Sarah N., Navarro, Juan C. Acosta, Ortega, Pablo, García-Serrano, Javier, Guemas, Virginie, Tourigny, Etienne, Cruz-García, Rubén, Massonnet, François, Doblas-Reyes, Francisco J., Kew, Sarah F., Philip, Sjoukje Y., van Oldenborgh, Geert Jan, Otto, Friederike E. L., Vautard, Robert, van der Schrier, Gerard, Funk, Chris, Hoell, Andrew, Nicholson, Sharon, Korecha, Diriba, Galu, Gideon, Artan, Guleid, Teshome, Fetene, Hailermariam, Kinfe, Segele, Zewdu, Harrison, Laura, Tadege, Abebe, Atheru, Zachary, Pomposi, Catherine, Pedreros, Diego, Rimi, Ruksana H., Haustein, Karsten, Barbour, Emily J., Allen, Myles R., Takahashi, Chiharu, Shiogama, Hideo, Imada, Yukiko, Kosaka, Yu, Mori, Masato, Arai, Miki, Kamae, Youichi, Watanabe, Masahiro, Min, Seung-Ki, Kim, Yeon-Hee, Park, In-Hong, Lee, Donghyun, Sparrow, Sarah, Wallom, David, Stone, Dáithí, Sun, Ying, Dong, Siyan, Zhang, Xuebin, Stott, Peter, Hu, Ting, Wang, Shanshan, Yuan, Xing, Wu, Renguang, Chen, Yang, Chen, Wei, Su, Qin, Luo, Feifei, Sparrow, Sarah, Tian, Fangxing, Dong, Buwen, Tett, Simon F. B., Lott, Fraser C., Wallom, David, Zhou, Chunlüe, Wang, Kaicun, Qi, Dan, Tan, Jianguo, Perkins-Kirkpatrick, S. E., King, A. D., Cougnon, E. A., Grose, M. R., Oliver, E. C. J., Holbrook, N. J., Lewis, S. C., Pourasghar, F., Hope, Pandora, Black, Mitchell T., Lim, Eun-Pa, Dowdy, Andrew, Wang, Guomin, Pepler, Acacia S., and Fawcett, Robert J. B.

Published
2019

7. EXAMINING THE POTENTIAL CONTRIBUTIONS OF EXTREME 'WESTERN V' SEA SURFACE TEMPERATURES TO THE 2017 MARCH-JUNE EAST AFRICAN DROUGHT

Author

Funk, Chris, Hoell, Andrew, Nicholson, Sharon, Korecha, Diriba, Galu, Gideon, Artan, Guleid, Teshome, Fetene, Hailermariam, Kinfe, Segele, Zewdu, Harrison, Laura, Tadege, Abebe, Atheru, Zachary, Pomposi, Catherine, and Pedreros, Diego

Subjects
East Africa -- Environmental aspects, Droughts -- Research -- Africa, Ocean temperature -- Research, Meteorological research, Business, Earth sciences
Abstract

Anthropogenic warming of Western V sea surface temperatures contributed to East African drought. Extremely warm (FAR = I) Western V SST doubled the probability of drought, contributing to widespread food [...]

Published
2019
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8. Wildfire-streamflow interactions in a chaparral watershed

Author

Loáiciga, Hugo A, Pedreros, Diego, and Roberts, Dar

Subjects
Hydrology, Agricultural, Veterinary and Food Sciences, Physical Geography and Environmental Geoscience, Earth Sciences, streamflow, watershed, wildfire, chaparral, Environmental Sciences
Abstract

The 272 km2 Malibu Creek watershed in the Santa Monica Mountains of southern California was chosen to study the impact of wildfires on streamflow. The predominant plant community in the Malibu Creek watershed is the chaparral, a fire-prone vegetation, which has experienced 10 large wildfires since 1949. Post-fire vegetation succession in the Malibu watershed indicates long-term vegetation changes that have heightened the likelihood of wildfire incidence in the last few decades. Precipitation, streamflow, and wildfire data from 1949 to 1994 were analyzed to determine the effect of vegetation burning on catchment streamflow. A paired-catchment analysis allowed the reconstruction of the expected natural streamflow in Malibu Creek in fire-impacted years. A comparison of measured and reconstructed streamflows showed annual streamflow increases up to 20-30% in fire-impacted water years relative to non-fire years. A statistically significant difference between the mean streamflow in fire and non-fire years was also established by means of the Wilcoxon test. © 2001 Elsevier Science Ltd.

Published
2001

10. Improved Rainfall Estimates and Predictions for 21st Century Drought Early Warning

Author

Funk, Chris, Peterson, Pete, Shukla, Shraddhanand, Husak, Gregory, Landsfeld, Marty, Hoell, Andrew, Pedreros, Diego, Roberts, J. B, Robertson, F. R, Tadesse, Tsegae, Zaitchik, Ben, Rowland, James, and Verdin, James

Subjects
Meteorology And Climatology
Abstract

As temperatures increase, the onset and severity of droughts is likely to become more intense. Improved tools for understanding, monitoring and predicting droughts will be a key component of 21st century climate adaption. The best drought monitoring systems will bring together accurate precipitation estimates with skillful climate and weather forecasts. Such systems combine the predictive power inherent in the current land surface state with the predictive power inherent in low frequency ocean-atmosphere dynamics. To this end, researchers at the Climate Hazards Group (CHG), in collaboration with partners at the USGS and NASA, have developed i) a long (1981-present) quasi-global (50degS-50degN, 180degW-180degE) high resolution (0.05deg) homogenous precipitation data set designed specifically for drought monitoring, ii) tools for understanding and predicting East African boreal spring droughts, and iii) an integrated land surface modeling (LSM) system that combines rainfall observations and predictions to provide effective drought early warning. This talk briefly describes these three components. Component 1: CHIRPS The Climate Hazards group InfraRed Precipitation with Stations (CHIRPS), blends station data with geostationary satellite observations to provide global near real time daily, pentadal and monthly precipitation estimates. We describe the CHIRPS algorithm and compare CHIRPS and other estimates to validation data. The CHIRPS is shown to have high correlation, low systematic errors (bias) and low mean absolute errors. Component 2: Hybrid statistical-dynamic forecast strategies East African droughts have increased in frequency, but become more predictable as Indo- Pacific SST gradients and Walker circulation disruptions intensify. We describe hybrid statistical-dynamic forecast strategies that are far superior to the raw output of coupled forecast models. These forecasts can be translated into probabilities that can be used to generate bootstrapped ensembles describing future climate conditions. Component 3: Assimilation using LSMs CHIRPS rainfall observations (component 1) and bootstrapped forecast ensembles (component 2) can be combined using LSMs to predict soil moisture deficits. We evaluate the skill such a system in East Africa, and demonstrate results for 2013.

Published
2015

11. A High-Resolution 1983–2016 Tmax Climate Data Record Based on Infrared Temperatures and Stations by the Climate Hazard Center

Author

Funk, Chris, primary, Peterson, Pete, primary, Peterson, Seth, primary, Shukla, Shraddhanand, primary, Davenport, Frank, primary, Michaelsen, Joel, primary, Knapp, Kenneth R., primary, Landsfeld, Martin, primary, Husak, Gregory, primary, Harrison, Laura, primary, Rowland, James, primary, Budde, Michael, primary, Meiburg, Alex, primary, Dinku, Tufa, primary, Pedreros, Diego, primary, and Mata, Nicholas, primary

Published
2019
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13. The effects of El Niño on agricultural water balance in Guatemala

Author

Pedreros, Diego, Michaelsen, Joel, Verdin, James, Magadzire, Tamuka, Aguilar, Lorena, Alfaro Martínez, Eric J., Rodríguez, Mario, Carvalho, Leila V., Funk, Chris C., and Husak, Greg J.

Subjects
Agricultura, Natural hazards, Central America, Precipitation, El Niño, ENSO, Guatemala, Climate variability, Water balance
Abstract

Poster -- Universidad de Costa Rica. Centro de Investigaciones Geofísicas, 2011. Presented at the 2010 Fall Meeting, American Geophysical Union, San Francisco, California, USA. 13-17th, December. More than half the population of Guatemala lives in rural areas and depends on subsistence agriculture for their well being. This region is vulnerable to many climatic events, one of which is El Niño. This study looks at the effects of El Nino on rainfall patterns at regional scales and specifically quantifies the effects on agricultural water balances in Guatemala. Analysis is focused on maize crops during the Primera growing season (May – Aug, May -Oct). The study builds on rainfall and water balance modeling techniques developed by the Famine Early Warning Systems Network (FEWS NET). The results corroborate previous work, showing that there is a negative relationship between El Niño and rainfall, primarily on the Pacific side of the region and mainly during the months of August and September. The study also found that the related rainfall variations influence long-term (May - October) maize growing areas and could affect the start of the short-term Postrera season (August - October) by extending the Canícula (mid season dry period). U.S. Geological Survey (USGS)- Earth Resources Observation and Science (EROS) Center, Sioux Falls, SD. FEWS NET , Climate Hazard Group- UCSB/Geography dpt., UCSB/Geography dpt , Universidad de Costa Rica, Famine Early Warning System Network (FEWS NET) UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI)

Published
2011

15. A quasi-global precipitation time series for drought monitoring

Author

Funk, Chris C., primary, Peterson, Pete J., additional, Landsfeld, Martin F., additional, Pedreros, Diego H., additional, Verdin, James P., additional, Rowland, James D., additional, Romero, Bo E., additional, Husak, Gregory J., additional, Michaelsen, Joel C., additional, and Verdin, Andrew P., additional

Published
2014
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16. Land Cover and Forest Formation Distributions for St. Kitts, Nevis, St. Eustatius, Grenada and Barbados from Decision Tree Classification of Cloud-Cleared Satellite Imagery

Author

Helmer, Eileen H., primary, Kennaway, Todd A., additional, Pedreros, Diego H., additional, Clark, Matthew L., additional, Marcano-Vega, Humfredo, additional, Tieszen, Larry L., additional, Ruzycki, Thomas R., additional, Schill, S. R., additional, and Sean Carrington, C. M., additional

Published
2008
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