Guirguis, K., A. Gershunov, B. Hatchett, T. Shulgina, M.J. DeFlorio, A.C. Subramanian, Janin Guzman-Morales, R. Aguilera, R. Clemesha, T.W. Corringham, L. Delle Monache, D. Reynolds, A. Tardy, I. Small, and F. M. Ralph. Winter Wet-Dry Weather Patterns Driving Atmospheric Rivers and Santa Ana Winds Provide Evidence for Increasing Wildfire Hazard in California. . Climate Dynamics. (2022) .  


Hatchett BJ, Benmarhnia T, Guirguis K, VanderMolen K, Gershunov A, Kerwin H, Khlystov A, Lambrecht KM, Samburova V. Mobility data to aid assessment of human responses to extreme environmental conditions. Lancet Planet Health. 2021 Oct;5(10):e665-e667. doi: 10.1016/S2542-5196(21)00261-8. PMID: 34627467. 

Gershunov, A., J. Guzman Morales, B. Hatchett, R. Aguilera, T. Shulgina, K. Guirguis, J. Abatzoglou, D. Cayan, D. Pierce, P. Williams, I. Small, R. Clemesha, L. Schwarz, T. Benmarhnia, A. Tardy, 2021: Hot and cold flavors of southern California’s Santa Ana winds: Their causes, trends, and links with wildfire. Climate Dynamics. In Press.

Mehta, S., D. Vashistha, L. Schwarz, I. Corcos, A. Gershunov, K. Guirguis, R. Basu, T. Benmarhnia, 2021: Racial/ethnic disparities in the association between fine particles and respiratory hospital admissions in San Diego County, CA. Environmental Science and Health. Part A, DOI: 10.1080/10934529.2021.1887686. Click here for personal use pdf. 


Guirguis, K., A. Gershunov, M.J. DeFlorio,
T. Shulgina, L. Delle Monache, A.C. Subramanian, T.W. Corringham, and F. M. Ralph, 2020: Four atmospheric circulation regimes over the North Pacific and their relationship to California precipitation on daily to seasonal timescales. Geophysical Research Letters, 47, e2020GL087609

Schwartz L. B.J. Malig, J. Guzman Morales, K. Guirguis, A. Gershunov, R. Basu and T. Benmarhnia, 2020: The health burden of fall, winter and spring heat waves in Southern California and contribution of Santa Ana Winds. Environmental Research Letters, 15, 054017

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. Sci. Total Environ. 2020 Mar 06; 721:137678. PMID: 32197289.


Gershunov, A., T.M. Shulgina, R.E.S. Clemesha, K. Guirguis, D.W. Pierce, M.D. Dettinger, D.A. Lavers, D.R. Cayan, S.D. Polade, J. Kalansky and F.M. Ralph, 2019: Precipitation regime change in Western North America: The role of Atmospheric Rivers. Nature Scientific Reports, 9:9944, DOI: 10.1038/s41598-019-46169-w.

Malig BJ, Wu XM, Guirguis K, Gershunov A, Basu R., 2019: Associations between ambient temperature and hepatobiliary and renal hospitalizations in California, 1999 to 2009. Environ Res. 2019 10; 177:108566. PMID: 31323396.


Guirguis, K., A. Gershunov, T. Shulgina, R.E.S. Clemesha, and F.M. Ralph, 2018: Atmospheric Rivers impacting Northern California and their modulation by a variable climate. Clim. Dyn., DOI: 10.1007/s00382-018-4532-5

Guirguis, K., A. Gershunov, R.E.S. Clemesha, T. Shulgina, A. C. Subramanian, and F.M. Ralph, 2018: Circulation Drivers of Atmospheric Rivers at the North American West Coast. Geophys. Res. Lett., DOI: 10.1029/2018GL079249

Guirguis, K., R. Basu, W. Al-Delaimy, T. Benmarhnia, R.E.S. Clemesha, I. Corcos, J. Guzman-Morales, B. Hailey, I. Small, A. Tardy, D. Vashishtha, J.G. Zivin, and A. Gershunov, 2018: Heat, disparities, and health outcomes in San Diego County’s diverse climate zones, Geohealth, DOI: 10.1029/2017GH00127

Guirguis, K., A. Gershunov, D.R. Cayan, and D. Pierce, 2018: Heat wave probability in the changing climate of the Southwest US, Climate Dynamics, 50, 3853-3864, DOI: 10.1007/s00382-017-3850-3

Clemesha, R.E.S., Guirguis, K., A. Gershunov, I.J. Small, and A. Tardy, 2018: California Heat Waves: their spatial evolution, variation, and coastal modulation by low clouds,Climate Dynamics, 50, 4285-4301, DOI: 10.1007/s00382-017-3875-7

Vashishtha, D., W. Sieber, B. Hailey, Guirguis, K., A. Gershunov, and W. Al-Delaimy, 2018: Outpatient Clinic Visits During Heat Waves: Findings from a Large Family Medicine Clinical Database, Family Practice, cmy013,


Sherbakov, T., B.J. Malig, Guirguis, K., A. Gershunov, R. Basu, 2017: Ambient Temperature and Added Heat Wave Effects on Hospitalizations in California from 1999-2009, Environmental Research, 160, 83-90


Guirguis, K., A. Gershunov and D. Cayan, 2015: Interannual variability in associations between seasonal climate, weather and extremes: wintertime temperature over the Southwestern United States., Environmental Research Letters, 10, 124023, doi:10.1088/1748-9326/10/12/124023


Guirguis, K., A. Gershunov, A. Tardy, and R. Basu, 2014: The Impact of Recent Heat Waves on Human Health in California., J. Appl. Meteorol. Clim., 53, 3-19


Gershunov, A., B. Rajagopalan, J. Overpeck, K. Guirguis, D. Cayan, M. Hughes, M. Dettinger, C. Castro, R. Schwartz, M. Anderson, A. Ray, J. Barsugli, T. Cavazos, and M. Alexander, 2013: The Southwest Weather and Climate Extremes of the Future. Chapter 7. Assessment Report (Contribution to the National Climate Assessment)

Peterson, T.C., R.R. Heim, Jr., R. Hirsch, D.P. Kaiser, H. Brooks, N.S. Diffenbaugh, R.M. Dole, J.P. Giovannettone, K. Guirguis, T.R. Karl, R.W. Katz, K.E. Kunkel, D. Lettenmaier, G.J. McCabe, C.J. Paciorek, K.R. Ryberg, S. Schubert, V.B.S. Silva, B.C. Stewart,  A.V. Vecchia, G. Villarini, R.S. Vose, J. Walsh, M. Wehner, D. Wolock, K. Wolter, C.A. Woodhouse, and D. Wuebbles, 2013: Monitoring and Understanding Changes in Heat Waves, Cold Waves, Floods and Droughts in the United States: State of Knowledge. Bull. Amer. Meteor. Soc., 94,821-834.


Gershunov, A. and K. Guirguis, 2012: California heat waves in the present and future.Geophys. Res. Lett, doi:10.1029/2012GL05297


Gershunov, A., Z. Johnston, H. Margolis, and K. Guirguis, 2011: The California Heat Wave 2006 with Impacts on Statewide Medical Emergency: A space-time analysis. Geog. Res. Forum, 31, 53-69.

Guirguis, K., A. Gershunov, R. Schwartz, and S. Bennett, 2011: Recent warm and cold daily winter temperature extremes in the Northern Hemisphere. Geophys. Res. Lett, 38, L17701, doi:10.1029/2011GL048762.


Guirguis, K.J. and R. Avissar, 2008: Precipitation Climatology and Dataset Intercomparison for the Western United States.  J. Hydrometeor., 9, 825-841.

Guirguis, K.J. and R. Avissar, 2008: An Analysis of Precipitation Variability, Persistence, and Observational Data Uncertainty in the Western United States. J. Hydrometeor., 9, 843-865.


Lane, D.E., K.J. Goris, and R.C.J. Somerville, 2002: Radiative Transfer through Broken Clouds: Observations and Model Validation. J. Climate, 15, 2921-2933.