Publications


DeFlorio, M. J., Sengupta, A., Castellano, C. M., Wang, J., Zhang, Z., Gershunov, A., Guirguis, K., Luna Niño, R., Clemesha, R. E. S., Pan, M., Xiao, M., Kawzenuk, B., Gibson, P. B., Scheftic, W., Broxton, P. D., Switanek, M. B., Yuan, J., Dettinger, M. D., Hecht, C. W., … Anderson, M. L. (2024). From California’s Extreme Drought to Major Flooding: Evaluating and Synthesizing Experimental Seasonal and Subseasonal Forecasts of Landfalling Atmospheric Rivers and Extreme Precipitation during Winter 2022/23. Bulletin of the American Meteorological Society, 105(1), E84–E104. https://doi.org/10.1175/BAMS-D-22-0208.1
Guirguis, K., Gershunov, A., Hatchett, B. J., DeFlorio, M. J., Subramanian, A. C., Clemesha, R., Delle Monache, L., & Ralph, F. M. (2023). Subseasonal Prediction of Impactful California Winter Weather in a Hybrid Dynamical‐Statistical Framework. Geophysical Research Letters, 50(23), e2023GL105360. https://doi.org/10.1029/2023GL105360
DeFlorio, M. J., Sengupta, A., Castellano, C. M., Wang, J., Zhang, Z., Gershunov, A., Guirguis, K., Niño, R. L., Clemesha, R. E. S., Pan, M., Xiao, M., Kawzenuk, B., Gibson, P. B., Scheftic, W., Broxton, P. D., Switanek, M. B., Yuan, J., Dettinger, M. D., Hecht, C. W., … Anderson, M. L. (2023). From California’s extreme drought to major flooding: Evaluating and synthesizing experimental seasonal and subseasonal forecasts of landfalling atmospheric rivers and extreme precipitation during Winter 2022 - 2023. Bulletin of the American Meteorological Society. https://doi.org/10.1175/BAMS-D-22-0208.1
Clemesha, R. E. S., Iacobellis, S. F., Gershunov, A., Cayan, D. R., Small, I. J., & Cavazos, T. (2023). North American Monsoon Impacts Southern California’s Coastal Low Clouds. Geophysical Research Letters, 50(12), e2022GL102059. https://doi.org/10.1029/2022GL102059
Shulgina, T., Gershunov, A., Hatchett, B. J., Guirguis, K., Subramanian, A. C., Margulis, S. A., Fang, Y., Cayan, D. R., Pierce, D. W., Dettinger, M., Anderson, M. L., & Ralph, F. M. (2023). Observed and projected changes in snow accumulation and snowline in California’s snowy mountains. Climate Dynamics. https://doi.org/10.1007/s00382-023-06776-w
Byrne, S. M., Merrifield, M. A., Carter, M. L., Cayan, D. R., Flick, R. E., Gershunov, A., & Giddings, S. N. (2023). Southern California winter precipitation variability reflected in 100-year ocean salinity record. Communications Earth & Environment, 4(1), 143. https://doi.org/10.1038/s43247-023-00803-8
Shields, C. A., Payne, A. E., Shearer, E. J., Wehner, M. F., O’Brien, T. A., Rutz, J. J., Leung, L. R., Ralph, F. M., Marquardt Collow, A. B., Ullrich, P. A., Dong, Q., Gershunov, A., Griffith, H., Guan, B., Lora, J. M., Lu, M., McClenny, E., Nardi, K. M., Pan, M., … Zarzycki, C. (2023). Future Atmospheric Rivers and Impacts on Precipitation: Overview of the ARTMIP Tier 2 High‐Resolution Global Warming Experiment. Geophysical Research Letters, 50(6), e2022GL102091. https://doi.org/10.1029/2022GL102091
Castellano, C. M., DeFlorio, M. J., Gibson, P. B., Delle Monache, L., Kalansky, J. F., Wang, J., Guirguis, K., Gershunov, A., Ralph, F. M., Subramanian, A. C., & Anderson, M. L. (2023). Development of a Statistical Subseasonal Forecast Tool to Predict California Atmospheric Rivers and Precipitation Based on MJO and QBO Activity. Journal of Geophysical Research: Atmospheres, 128(6), e2022JD037360. https://doi.org/10.1029/2022JD037360
Hatchett, B. J., Koshkin, A. L., Guirguis, K., Rittger, K., Nolin, A. W., Heggli, A., Rhoades, A. M., East, A. E., Siirila‐Woodburn, E. R., Brandt, W. T., Gershunov, A., & Haleakala, K. (2023). Midwinter Dry Spells Amplify Post‐Fire Snowpack Decline. Geophysical Research Letters, 50(3). https://doi.org/10.1029/2022GL101235
Dimitrova, A., Gershunov, A., Levy, M. C., & Benmarhnia, T. (2023). Uncovering social and environmental factors that increase the burden of climate-sensitive diarrheal infections on children. Proceedings of the National Academy of Sciences, 120(3), e2119409120. https://doi.org/10.1073/pnas.2119409120
Howard, I. M., Stahle, D. W., Dettinger, M. D., Poulsen, C., Ralph, F. M., Torbenson, M. C. A., & Gershunov, A. (2023). A 440-Year Reconstruction of Heavy Precipitation in California from Blue Oak Tree Rings. Journal of Hydrometeorology, 24(3), 463–477. https://doi.org/10.1175/JHM-D-22-0062.1
Aguilera, R., Luo, N., Basu, R., Wu, J., Clemesha, R., Gershunov, A., & Benmarhnia, T. (2023). A novel ensemble-based statistical approach to estimate daily wildfire-specific PM2.5 in California (2006–2020). Environment International, 171, 107719. https://doi.org/10.1016/j.envint.2022.107719
MacDonald, G., Wall, T., Enquist, C. A. F., LeRoy, S. R., Bradford, J. B., Breshears, D. D., Brown, T., Cayan, D., Dong, C., Falk, D. A., Fleishman, E., Gershunov, A., Hunter, M., Loehman, R. A., Van Mantgem, P. J., Middleton, B. R., Safford, H. D., Schwartz, M. W., & Trouet, V. (2023). Drivers of California’s changing wildfires: a state-of-the-knowledge synthesis. International Journal of Wildland Fire. https://doi.org/10.1071/WF22155
Cayan, D. R., DeHaan, L. L., Gershunov, A., Guzman-Morales, J., Keeley, J. E., Mumford, J., & Syphard, A. D. (2022). Autumn precipitation: the competition with Santa Ana winds in determining fire outcomes in southern California. International Journal of Wildland Fire, 31(11), 1056–1067. https://doi.org/10.1071/WF22065
Corringham, T. W., McCarthy, J., Shulgina, T., Gershunov, A., Cayan, D. R., & Ralph, F. M. (2022). Climate change contributions to future atmospheric river flood damages in the western United States. Scientific Reports, 12(1), 13747. https://doi.org/10.1038/s41598-022-15474-2
Guirguis, K., Gershunov, A., Hatchett, B., Shulgina, T., DeFlorio, M. J., Subramanian, A. C., Guzman-Morales, J., Aguilera, R., Clemesha, R., Corringham, T. W., Delle Monache, L., Reynolds, D., Tardy, A., Small, I., & Ralph, F. M. (2022). Winter wet-dry weather patterns driving atmospheric rivers and Santa Ana winds provide evidence for increasing wildfire hazard in California. Climate Dynamics, 21. https://doi.org/10.1007/s00382-022-06361-7
Naughten, S. M., Aguilera, R., Gershunov, A., Benmarhnia, T., & Leibel, S. (2022). A Perspective on Pediatric Respiratory Outcomes During California Wildfires Due to Smoke and PM2.5 Exposure. Frontiers in Pediatrics, 10, 891616. https://doi.org/10.3389/fped.2022.891616
Michaelis, A. C., Gershunov, A., Weyant, A., Fish, M. A., Shulgina, T., & Ralph, F. M. (2022). Atmospheric river precipitation enhanced by climate change: A case study of the storm that contributed to California’s Oroville Dam crisis. Earths Future, 10(3), 12. https://doi.org/10.1029/2021ef002537
Dimitrova, A., McElroy, S., Levy, M., Gershunov, A., & Benmarhnia, T. (2022). Precipitation variability and risk of infectious disease in children under 5 years for 32 countries: a global analysis using Demographic and Health Survey data. Lancet Planetary Health, 6(2), E147–E155.
McElroy, S., Ilango, S., Dimitrova, A., Gershunov, A., & Benmarhnia, T. (2022). Extreme heat, preterm birth, and stillbirth: A global analysis across 14 lower-middle income countries. Environment International, 158, 8. https://doi.org/10.1016/j.envint.2021.106902
Aguilera, R., Leibel, S., Corringham, T., Bialostozky, M., Nguyen, M. B., Gershunov, A., & Benmarhnia, T. (2022). Mediating Role of Fine Particles Abatement on Pediatric Respiratory Health During COVID‐19 Stay‐at‐Home Order in San Diego County, California. GeoHealth, 6(9). https://doi.org/10.1029/2022GH000637
Schwarz, L., Castillo, E. M., Chan, T. C., Brennan, J. J., Sbiroli, E. S., Carrasco-Escobar, G., Nguyen, A., Clemesha, R. E. S., Gershunov, A., & Benmarhnia, T. (2022). Heat Waves and Emergency Department Visits Among the Homeless, San Diego, 2012–2019. American Journal of Public Health, 112(1), 98–106. https://doi.org/10.2105/AJPH.2021.306557
Clemesha, R. E. S., Gershunov, A., Lawson, D. M., Longcore, T., MacDonald, B., Booker, M., Munson, B., & O’Connor, K. (2021). A high-resolution record of coastal clouds and fog and their role in plant distributions over San Clemente Island, California. Environmental Research Communications, 3(10), 16. https://doi.org/10.1088/2515-7620/ac2894
Hatchett, B. J., Benmarhnia, T., Guirguis, K., VanderMolen, K., Gershunov, A., Kerwin, H., Khlystov, A., Lambrecht, K. M., & Samburova, V. (2021). Mobility data to aid assessment of human responses to extreme environmental conditions. Lancet Planetary Health, 5(10), E665–E667.
Keeley, J. E., Guzman-Morales, J., Gershunov, A., Syphard, A. D., Cayan, D., Pierce, D. W., Flannigan, M., & Brown, T. J. (2021). Ignitions explain more than temperature or precipitation in driving Santa Ana wind fires. Science Advances, 7(30). https://doi.org/10.1126/sciadv.abh2262
Gershunov, A., Morales, J. G., Hatchett, B., Guirguis, K., Aguilera, R., Shulgina, T., Abatzoglou, J. T., Cayan, D., Pierce, D., Williams, P., Small, I., Clemesha, R., Schwarz, L., Benmarhnia, T., & Tardy, A. (2021). Hot and cold flavors of southern California’s Santa Ana winds: their causes, trends, and links with wildfire. Climate Dynamics, 16. https://doi.org/10.1007/s00382-021-05802-z
Schwarz, L., Hansen, K., Alari, A., Ilango, S. D., Bernal, N., Basu, R., Gershunov, A., & Benmarhnia, T. (2021). Spatial variation in the joint effect of extreme heat events and ozone on respiratory hospitalizations in California. Proceedings of the National Academy of Sciences of the United States of America, 118(22), 9. https://doi.org/10.1073/pnas.2023078118
Aguilera, R., Corringham, T., Gershunov, A., Leibel, S., & Benmarhnia, T. (2021). Fine particles in wildfire smoke and pediatric respiratory health in California. Pediatrics, 147(4). https://doi.org/10.1542/peds.2020-027128
Aguilera, R., Corringham, T., Gershunov, A., & Benmarhnia, T. (2021). Wildfire smoke impacts respiratory health more than fine particles from other sources: observational evidence from Southern California. Nature Communications, 12(1). https://doi.org/10.1038/s41467-021-21708-0
Mehta, S., Vashishtha, D., Schwarz, L., Corcos, I., Gershunov, A., Guirguis, K., Basu, R., & Benmarhnia, T. (2021). Racial/ethnic disparities in the association between fine particles and respiratory hospital admissions in San Diego county, CA. Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engineering. https://doi.org/10.1080/10934529.2021.1887686
Skaff, N. K., Cheng, Q., Clemesha, R. E. S., Collender, P. A., Gershunov, A., Head, J. R., Hoover, C. M., Lettenmaier, D. P., Rohr, J. R., Snyder, R. E., & Remais, J. V. (2020). Thermal thresholds heighten sensitivity of West Nile virus transmission to changing temperatures in coastal California. Proceedings of the Royal Society B-Biological Sciences, 287(1932). https://doi.org/10.1098/rspb.2020.1065
Guirguis, K., Gershunov, A., DeFlorio, M. J., Shulgina, T., Delle Monache, L., Subramanian, A. C., Corringham, T. W., & Ralph, F. M. (2020). Four atmospheric circulation regimes over the North Pacific and their relationship to California precipitation on daily to seasonal timescales. Geophysical Research Letters, 47(16). https://doi.org/10.1029/2020gl087609
Cao, Q., Gershunov, A., Shulgina, T., Ralph, F. M., Sun, N., & Lettenmaier, D. P. (2020). Floods due to atmospheric rivers along the US West Coast: The role of antecedent soil moisture in a warming climate. Journal of Hydrometeorology, 21(8), 1827–1845. https://doi.org/10.1175/jhm-d-19-0242.1
McElroy, S., Schwarz, L., Green, H., Corcos, I., Guirguis, K., Gershunov, A., & Benmarhnia, T. (2020). Defining heat waves and extreme heat events using sub-regional meteorological data to maximize benefits of early warning systems to population health. Science of the Total Environment, 721. https://doi.org/10.1016/j.scitotenv.2020.137678
Schwarz, L., Malig, B., Guzman-Morales, J., Guirguis, K., Ilango, S. D., Sheridan, P., Gershunov, A., Basu, R., & Benmarhnia, T. (2020). The health burden fall, winter and spring extreme heat events in the in Southern California and contribution of Santa Ana Winds. Environmental Research Letters, 15(5). https://doi.org/10.1088/1748-9326/ab7f0e
Abatzoglou, J. T., Hatchett, B. J., Fox-Hughes, P., Gershunov, A., & Nauslar, N. J. (2020). Global climatology of synoptically-forced downslope winds. International Journal of Climatology. https://doi.org/10.1002/joc.6607
Ilango, S. D., Weaver, M., Sheridan, P., Schwarz, L., Clemesha, R. E. S., Bruckner, T., Basu, R., Gershunov, A., & Benmarhnia, T. (2020). Extreme heat episodes and risk of preterm birth in California, 2005-2013. Environment International, 137. https://doi.org/10.1016/j.envint.2020.105541
Leibel, S., Nguyen, M., Brick, W., Parker, J., Ilango, S., Aguilera, R., Gershunov, A., & Benmarhnia, T. (2020). Increase in pediatric respiratory visits associated with Santa Ana wind-driven wildfire smoke and PM2.5 levels in San Diego County. Annals of the American Thoracic Society, 17(3), 313–320. https://doi.org/10.1513/AnnalsATS.201902-150OC
Aguilera, R., Gershunov, A., Ilango, S. D., Guzman-Morales, J., & Benmarhnia, T. (2020). Santa Ana winds of Southern California impact PM2.5 with and without smoke from wildfires. Geohealth, 4(1). https://doi.org/10.1029/2019gh000225
Corringham, T. W., Ralph, F. M., Gershunov, A., Cayan, D. R., & Talbot, C. A. (2019). Atmospheric rivers drive flood damages in the western United States. Science Advances, 5(12). https://doi.org/10.1126/sciadv.aax4631
Barlow, M., Gutowski, W. J., Gyakum, J. R., Katz, R. W., Lim, Y. K., Schumacher, R. S., Wehner, M. F., Agel, L., Bosilovich, M., Collow, A., Gershunov, A., Grotjahn, R., Leung, R., Milrad, S., & Min, S. K. (2019). North American extreme precipitation events and related large-scale meteorological patterns: a review of statistical methods, dynamics, modeling, and trends. Climate Dynamics, 53(11), 6835–6875. https://doi.org/10.1007/s00382-019-04958-z
Malig, B. J., Wu, X. M., Guirguis, K., Gershunov, A., & Basu, R. (2019). Associations between ambient temperature and hepatobiliary and renal hospitalizations in California, 1999 to 2009. Environmental Research, 177. https://doi.org/10.1016/j.envres.2019.108566
Williams, A. P., Abatzoglou, J. T., Gershunov, A., Guzman-Morales, J., Bishop, D. A., Balch, J. K., & Lettenmaier, D. P. (2019). Observed impacts of anthropogenic climate change on wildfire in california. Earths Future, 7(8), 892–910. https://doi.org/10.1029/2019ef001210
Gershunov, A., Shulgina, T., Clemesha, R. E. S., Guirguis, K., Pierce, D. W., Dettinger, M. D., Lavers, D. A., Cayan, D. R., Polade, S. D., Kalansky, J., & Ralph, F. M. (2019). Precipitation regime change in Western North America: The role of atmospheric rivers. Scientific Reports, 9. https://doi.org/10.1038/s41598-019-46169-w
Guirguis, K., Gershunov, A., Shulgina, T., Clemesha, R. E. S., & Ralph, F. M. (2019). Atmospheric rivers impacting Northern California and their modulation by a variable climate. Climate Dynamics, 52(11), 6569–6583. https://doi.org/10.1007/s00382-018-4532-5
Aguilera, R., Gershunov, A., & Benmarhnia, T. (2019). Atmospheric rivers impact California’s coastal water quality via extreme precipitation. Science of the Total Environment, 671, 488–494. https://doi.org/10.1016/j.scitotenv.2019.03.318
Ralph, F. M., Wilson, A. M., Shulgina, T., Kawzenuk, B., Sellars, S., Rutz, J. J., Lamjiri, M. A., Barnes, E. A., Gershunov, A., Guan, B., Nardi, K. M., Osborne, T., & Wick, G. A. (2019). ARTMIP-early start comparison of atmospheric river detection tools: how many atmospheric rivers hit northern California’s Russian River watershed? Climate Dynamics, 52(7–8), 4973–4994. https://doi.org/10.1007/s00382-018-4427-5
Guzman-Morales, J., & Gershunov, A. (2019). Climate change suppresses Santa Ana winds of Southern California and sharpens their seasonality. Geophysical Research Letters, 46(5), 2772–2780. https://doi.org/10.1029/2018gl080261
Guirguis, K., Gershunov, A., Clemesha, R. E. S., Shulgina, T., Subramanian, A. C., & Ralph, F. M. (2018). Circulation drivers of atmospheric rivers at the North American West Coast. Geophysical Research Letters, 45(22), 12576–12584. https://doi.org/10.1029/2018gl079249
Vashishtha, D., Sieber, W., Hailey, B., Guirguis, K., Gershunov, A., & Al-Delaimy, W. K. (2018). Outpatient clinic visits during heat waves: findings from a large family medicine clinical database. Family Practice, 35(5), 567–570. https://doi.org/10.1093/fampra/cmy013