Alfredo Ruiz-Barradas

Associate Research Professor
Maryland State Climatologist
Department of Atmospheric and Oceanic Science
University of Maryland

Curriculum Vitae

• Education

• Doctor of Philosophy (Meteorology).
• University of Maryland.
• Dissertation: Interannual-to-decadal air-sea interactions in the tropical Atlantic region.
• Awarded: 05/2001.

• Master of Science (Meteorology).
• University of Maryland.
• Scholarly Paper: On the variability of heat content in the tropical Atlantic.
• Awarded: 05/1998.

• Master of Science (Geophysics).
• Universidad Nacional Autonoma de Mexico, UNAM, (National University of Mexico).
• Thesis: Aplicación del Modelo Termodinámico del Clima para la predicción de anomalías de temperatura y precipitación en la República Mexicana (Application of the Thermodynamic Climate Model to predict temperature and precipitation anomalies over Mexico).
• Awarded: 08/1991.

• Bachelor of Atmospheric Sciences.
• Universidad Veracruzana (University of Veracruz).
• Thesis: Un modelo barotrópico de ecuaciones primitivas (A primitive barotropic model).
• Awarded: 07/1987.

• Research Interest

• Trends in Arctic Sea Ice and their relation to Decadal-to-Multidecadal natural variability.
• Decadal-to-Multidecadal variability in the North Atlantic Ocean.
• Hydroclimate Variability and Change over North America.
• Understanding and Prediction of Multiannual Droughts.
• Climate Diagnostic and Modeling.
• Seasonal to Decadal climate variability.
• Monthly and seasonal forecasting.
• Coupled modes of variability in the tropical Atlantic.
• Atmosphere-sea interaction, land-sea-atmosphere interaction.
• Seasonal to interannual variability of precipitation in Mexico and its prediction.
• Ocean's influence on variability of summer precipitation over North America.

• Related Experience

• Associate Research Professor
• Institution: University of Maryland.
• Deepartment: Atmospheric and Oceanic Science.
• Period: 11/2014 to present.
• Analysis on the nature and mechanisms of Decadal-to-Multidacadal variability in the North Atlantic Ocean, and Arctic sea ice trends; investigation on the limits of SST-based seasonal prediction of Indian precipitation; and analysis of climate variability impact on water availability in rivers' streamflow.

• Assistant Research Scientist.
• Institution: University of Maryland.
• Department: Atmospheric and Oceanic Science.
• Period: 07/2004 to 10/2014.
• Analysis of the structure and mechanisms of North American warm-season hydroclimate variability, including droughts, and its dependence on SST variability in observations and climate models.

• Research Associate.
• Institution: University of Maryland.
• Department: Meteorology.
• Period: 06/2001 to 06/2004.
• Analysis of the structure and mechanisms of North American warm-season hydroclimate variability, and its dependence on SST variability. Objective identification of the main modes of SST variability.

• Research Assistant
• Institution: Centro de Ciencias de la Atmosfera, UNAM (Center for Atmosphere Sciences at the National Autonomous University of Mexico).
• Department: Teoría del Clima y Predicción (Theory of Climate and Forecasting).
• Period: 09/1991 to 08/1995.
• Conducting numerical experiments to assess and improve the Adem's Thermodynamic Climate Model skill at predicting monthly and seasonal precipitation over Mexico.

• Teaching, Mentoring & Advising

• Teaching

• Co-instructor with S. Nigam of the graduate course AOSC658N, North American Hydroclimate: Seasonal to Interannual Variability.
• AOSC, University of Maryland.
• Fall 2005, 2012, 2018.

• Guest Lecturer in E. Kalnay's graduate course AOSC630, Statistical Methods in Meteorology and Oceanography.
• AOSC, University of Maryland.
• Spring 2014, 2015.

• Guest Lecturer in E. Kalnay's graduate course AOSC614, Atmospheric Modeling, Data Assimilation and Predictability.
• AOSC, University of Maryland.
• Fall 2014, 2015.

• Course (20 hours): Introduction to numerical models of climate and meteorological forecasting.
• Specialty of Climatology at the Universidad Veracruzana.
• July 1993.

• Course (40 hours): Introduction to the thermodynamic theory of climate.
• Senior students majoring in Atmospheric Sciences at the Universidad Veracruzana.
• July 1992.

• Course Development

• Co-developer of the graduate course:
• AOSC658N, North American Hydroclimate: Seasonal to Interannual Variability.
• AOSC, University of Maryland. Fall 2005.

• Co-developer of the undergraduate course:
• HONR238P, The Water Cycle and Water Wars of the American West.
• AOSC, University of Maryland. Fall 2007.

• Curriculum Development

• Participant in the Early Career Scientists Assembly Junior Faculty Forum on Future Scientific Directions.
• NCAR's Mesa Laboratory. Boulder Colorado.
• 27-29 July, 2005.

• Course (20 hours): Introduction to Numerical Models of Climate and Meteorological forecasting.
• Specialty in Climatology at the University of Veracruz.
• July 1993.

• Course (40 hours): Introduction to the Thermodynamic Theory of Climate.
• Senior students majoring in Atmospheric Sciences at the University of Veracruz.
• July 1992.

• Advising (Other than Research Direction)

• Semester-long research projects of five students in the course "North American Hydroclimate: Seasonal to Interannual Variability".
• AOSC, University of Maryland.
• Fall 2005.

• Advising (Research Direction)

• STEM High School Seniors

• Alfredo Ruiz-Malca, 2018
• Impact of Climate Variability, Change and Damming in Streamflow of the Mekong River (pdf).
• Research Practicum. Eleanor Roosevelt High School.

• Jonathan Bertiz, 2017
• Identifying Climate Change and Variability in the Philippines and Indochina Peninsula: The Maritime Continent (pdf).
• Research Practicum. Eleanor Roosevelt High School.

• Salma A. Tayel, 2016
• Climate over Northern Africa: Change, Variability and the Impact of the Nile River on Egypt (pdf).
• Research Practicum. Eleanor Roosevelt High School.
• Awards:
• Honorable mention in the 2016 STEMS Science Fair in the Environmental Science category.
• Award from the American meteorological Society 2016.

• Nana-Bilkisu Habib, 2015
• Climate Variability and Change in Africa's Guinea Region (pdf).
• Research Practicum. Eleanor Roosevelt High School.
• Awards:
• Second Place in the 2015 STEMS Science Fair in the Climate category
• Third Place in the 2015 Regional Science Fair in the Earth and Planetary Sciences category.
• Award from The Geological Society of Washington for worthy achievement in the field of Earth Science 2015.

• Undergraduate

• Justin Hicks, May 2018
• Large-scale Circulation Context for Atmospheric Rivers: Influence of Subseasonal Winter Teleconnections (pdf).
• AOSC, University of Maryland
• Co-Advisor.

• Lu Zhang, May 2018
• Response of the Indus Watershed to Climate Change in Central Asia (pdf).
• AOSC, University of Maryland
• Co-Advisor.

• Norman E. Rivera Pazos, 1995
• Una Parametrización de la Advección de la Energía Térmica en la Atmósfera Media Debido al Viento Medio en el Modelo Termodinámico del Clima de Adem (A Parameterization of Thermal Advection
• in the Mean Atmosphere due to Mean Wind in Adem's Thermodynamic Climate Model).
• Physics, Universidad Veracruzana, Mexico
• Advisor.

• M.S.

• Justin Hicks, May 2020
• Large-scale Circulation Context for Atmospheric Rivers: Influence of the North-Pacific Oscillation/West Pacific Teleconnection.
• AOSC, University of Maryland
• Co-Advisor.

• Ph.D., Advising & Acknowledgements

• Argyro Kavvada, May 2014
• Atlantic Multidecadal Variability: Surface and Subsurface thermohaline Structure and Hydroclimate Impacts..
• AOSC, University of Maryland
• Co-Advisor.

• Rebecca E. Eager, 2015-present.

• Liu Zhenchen, visiting student from Hohai University, Nanjing, China. 2017-2019.

• Katherine Lukens, 2015-2019.
• Acknowledgement in paper.

• Agniv Sengupta, 2015-2019.
• Co-author, acknowledgement in thesis.

• Natalie Thomas, 2015-2018.
• Co-author, acknowledgement in thesis.

• Kye-Hwan Kim, 2011-2013.
• Acknowledgement in Thesis
• AOSC, University of Maryland.

• Bin Guan, 2007-2008.
• Acknowledgement in Thesis, a 2008 paper and coauthor in a 2011 paper.
• AOSC, University of Maryland.

• Megan Linkin, 2006-2008.
• Acknowledgement in Thesis, and a 2008 paper.
• AOSC, University of Maryland.

• Scott Weaver, 2006-2008.
• Acknowledgement in Thesis, and a 2008 paper and coathor in a 2009 paper.
• AOSC, University of Maryland.

• Steven Chan, 2006-2008.
• Acknowledgement in a 2009 paper.
• AOSC, University of Maryland.

• Kristopher Karnauskas, 2006-2008.
• Coauthor in a 2008 paper.
• AOSC, University of Maryland.

• Ernesto Muñoz, 2006-2008.
• Acknowledgement in Thesis, Master's Scholarly Paper, and coauthor in a 2008 paper.
• AOSC, University of Maryland.

• Ching-Yee Chang, 2006-2008.
• Acknowledgement in Thesis.
• AOSC, University of Maryland.

• Fellowships, Prizes and Awards

• Award from the Indian Institute of Tropical Meteorology.
• Co-PI
• Statistical Prediction of the Seasonal and Subseasonal Summer and Winter Monsoon Rainfall Distribution over the Indian Subcontinent.
• Period: 01/2019-12/2020.

• Award from NOAA, Climate Prediction Program for the Americas
• PI.
• North America Hydroclimate Variability in CMIP5 model climate simulations and projections: are simulations improving and projections converging?
• Period: 08/2010 to 07/2013.

• Award from NOAA, Climate Prediction Program for the Americas.
• PI.
• Warm Season Predictability of Great Plains Hydroclimate.
• Period: 01/2006 to 12/2009.

• Award from the NSF, ATM-Climate and Large Scale Dynamics Program.
• PI.
• DRICOMP Project: SST North American Drought Links in 20th Century Simulations and 21st Century Climate Projections.
• Period: 09/2007 to 08/2008.

• Award from the NSF, ATM-Climate and Large Scale Dynamics Program.
• PI.
• Project: Diagnosis of North American hydroclimate variability in coupled model simulations.
• Period: 09/2004 to 08/2005.

• General Research Assistantship, Level III, in the Department of Meteorology at the University of Maryland.
• Period: 09/2000 to 04/2001.

• Study Abroad Scholarship from the National Autonomous University of Mexico: Doctoral degree.
• Period: 09/1995 to 08/2000.

• Stimulus Award (Level A) to the Productivity and Performance of Academic.
• Personnel from the National Autonomous University of Mexico.
• Period: 07/1993 to 08/1995.

• Scholarship from the National Autonomous University of Mexico: Master's degree.
• Period: 05/1990 to 04/1991.

• Scholarship from the National Council of Science and Technology of Mexico (CONACyT): M.Sc.'s degree.
• Period: 8/1988 to 04/1990.

• Scholarship from the National Council of Science and Technology of Mexico (CONACyT): B.A.Sc.'s Thesis.
• Period: 11/1986 to 08/1987.

• Publications

• Referred Journals

• Hicks, J., B. Guan, S. Nigam, and A. Ruiz-Barradas, 2023.
• Large-scale circulation context for North American west coast atmospheric rivers: Influence of the subseasonal NPO/WP teleconnection. (pdf).
• J. Geophys. Res.: Atm., 128, e2023JD038693.

• Nigam, S., A. Ruiz-Barradas, and A. Sengupta, 2021.
• The Chennai Water Crisis: Insufficient Rainwater or Suboptimal Harnessing of Runoff? (pdf).
• Current Sci., 120, 43-55.

• Nigam, S., A. Sengupta, and A. Ruiz-Barradas, 2020.
• Atlantic-Pacific Links in Observed Multidecadal SST Variability: Is the Atlantic Multidecadal Oscillation's Phase Reversal Orchestrated by the Pacific Decadal Oscillation? (pdf).
• J. Climate, 33, 5479-5505.

• Bach, E., S. Motesharrei, E. Kalnay, and A. Ruiz-Barradas, 2019.
• Local Atmosphere-Ocean Predictability: Dynamical Origins, Lead Times, and Seasonality (pdf).
• J. Climate, 32, 7507-7519.

• Ruiz-Barradas, A., L. Chafik, S. Nigam, and S. Häkkinen, 2018.
• Recent Subsurface North Atlantic Cooling Trend in context of Atlantic Decadal-to-Multidecadal Variability (pdf).
• Tellus A, 70, 1-19, DOI: 10.1080/16000870.2018.1481688.

• Ruiz-Barradas, A., and S. Nigam 2018
• Hydroclimate Variability and Change over the Mekong River Basin: Modeling, and Predictability and Policy Implications (pdf).
• J. Hydrometeorology, 19, 849-869.

• Nigam, S., A. Ruiz-Barradas, and L. Chafik, 2018.
• Gulf Stream Excursions Generate the Decadal Pulses in the Atlantic Multidecadal Oscillation (pdf).
• J. Climate, 31, 2853-2870.

• Nigam, S., N. P. Thomas, A. Ruiz-Barradas, and S. J. Weaver, 2017.
• Striking Seasonality in the Secular Warming of the Northern Continents: Structure and Mechanisms (pdf).
• J. Climate, 30, 6521-6541.

• Chafik, L., S. Häkkinen, M. H. England, J. A. Carton, S. Nigam, A. Ruiz-Barradas, A Hannachi, and L. Miller, 2016.
• Global Linkages Originating from Decadal Oceanic Variability in the Subpolar North Atlantic (pdf).
• Geophys. Res. Lett., 43, 10909-10919.

• Ruiz-Barradas, A. E. Kalnay, M. Peña, A. E. BozorgMagham, and S. Motesharrei, 2016.
• Finding the driver of local ocean-atmosphere coupling in reanalyses and CMIP5 climate models. (pdf).
• Climate Dynamics, 48, 2153-2172.

• Sheffield, J., et al. (including Ruiz-Barradas), 2014.
• Regional Climate Processes and Projections for North America: CMIP3/CMIP5 differences, attribution and outstanding issues (pdf).
• NOAA Technical Report OAR CPO-2.

• Sheffield, J., et al. (including Ruiz-Barradas), 2013.
• North American Climate in CMIP5 Experiments. Part I: Evaluation of 20th Century Continental and Regional Climatology (pdf).
• J. Climate, 26, 9209-9245.

• Sheffield, J., et al. (including Ruiz-Barradas), 2013.
• North American Climate in CMIP5 Experiments. Part II: Evaluation of 20th Century Intra-Seasonal to Decadal Variability (pdf).
• J. Climate, 26, 9247-9290.

• Ruiz-Barradas A., S. Nigam, and A. Kavvada 2013.
• The Atlantic Multidecadal Oscillation in 20th Century Climate Simulations: Uneven Progress from CMIP3 to CMIP5 (pdf).
• Climate Dynamics, 41, 3301-3315.

• Kavvada A., A. Ruiz-Barradas, and S. Nigam 2013.
• AMO's Structure and Climate Footprint in Observations and IPCC AR5 Climate Simulations (pdf).
• Climate Dynamics, 41, 1345-1364.

• Ruiz-Barradas, A., and S. Nigam 2013.
• Atmosphere-Land-surface Interactions over the Southern Great Plains: Characterization from Pentad Analysis of DOE-ARM Field Observations and NARR Reanalysis (pdf).
• J. Climate, 26, 875-886.

• Nigam, S., B. Guan, and A. Ruiz-Barradas, 2011.
• Key role of the Atlantic Multidecadal Oscillation in 20th century drought and wet periods over the Great Plains (pdf).
• Geophys. Res. Lett,38, L16713, doi:10.1029/2011GL048650.

• Ruiz-Barradas. A., S. Nigam, 2010.
• Great Plains precipitation and its SST links in 20th century climate simulations, and 21st and 22nd century climate projections (pdf.
• J. Climate, 23, 6409-6429.

• Ruiz-Barradas. A., S. Nigam, 2010.
• SST-North American hydroclimate links in AMIP simulations of the Drought Working Group Models: A proxy for the idealized drought modeling experiments (pdf).
• J. Climate, 23, 2585-2598.

• Schubert, S., et al. (including S. Nigam and A. Ruiz-Barradas), 2009.
• A USCIVAR project to assess and compare the responses of global climate models to drought-related SSTforcingpatterns: Overview and results (pdf).
• J. Climate, 22, 5251-5272.

• Weaver, S. J.,A. Ruiz-Barradas, and S. Nigam, 2009.
• Pentad Evolution of the 1988 Drought and 1993 Flood over the Great Plains: A NARR Perspective on the Atmospheric and Terrestrial Water Balance (pdf).
• J. Climate, 22, 5366-5384.

• Karnauskas, K. B., A. Ruiz-Barradas, S. Nigam, and A. J. Busalacchi, 2008.
• North American Droughts in ERA-40 global and NCEP North American Regional Reanalysys; A Palmer Drought Severity Index Perspective (pdf).
• J. Climate, 21, 2102-2123.

• Muñoz, E., A. J. Busalacchi, S. Nigam, and A. Ruiz-Barradas, 2008.
• Winter and Summer Structure of the Caribbean Low-Level Jet (pdf).
• J. Climate, 21, 1260-1276.

• Ruiz-Barradas, A. S. Nigam, 2006.
• IPCC's 20th century climate simulations: varied representations of North American hydroclimate variability (pdf).
• J. Climate, 19, 4041-4058.

• Ruiz-Barradas, A., S. Nigam, 2006.
• Great Plains hydroclimate variability: the view from North American Regional Reanalysis (pdf).
• J. Climate, 19, 3004-3010.

• Nigam, S., and A. Ruiz-Barradas, 2006.
• Seasonal hydroclimate variability over North America in global and regional reanalyses and AMIP Simulations: a mixed assessment (pdf).
• J. Climate, 19, 815-837.

• Ruiz-Barradas, A., S. Nigam, 2005.
• Warm-season rainfall variability over the US Great Plains in observations, NCEP and ERA-40 reanalyses, and NCAR and NASA atmospheric model simulations ((pdf).
• J. Climate, 18, 1808-1829.

• Ruiz-Barradas, A., J. A. Carton, S. Nigam, 2003.
• Role of the atmosphere in climate variability of the tropical Atlantic (pdf).
• J. Climate, 16, 2052-2065.

• Ruiz-Barradas, A., J. A. Carton, S. Nigam, 2000.
• Structure of interannual-to-decadal climate variability in the tropical Atlantic sector (pdf).
• J. Climate, 13, 3285-3297.

• Adem, J., V. M. Mendoza, A. Ruiz, E. E. Villanueva and R. Garduño, 2000.
• Recent numerical experiments on three-months extended and seasonal weather prediction with a thermodynamic model (pdf).
• Atmósfera, 13, 53-84.

• Adem, J., A. Ruiz, V.M. Mendoza, R. Garduño and V. Barradas, 1995.
• Recent experiments on monthly weather prediction with the Adem Thermodynamic Climate Model, with especial emphasis in Mexico (pdf).
• Atmósfera, 8, 23-34.

• Referred Conference Proceedings & Public Outreach

• Averill J., et al. (including Ruiz-Barradas), 2023.
• Workshop on Incorporating Climate Change Data in U.S. Building Codes and Standards (pdf).
• NIST Special Publication 1291.

• Ruiz-Barradas, A., 2015.
• Variabilidad del Clima y Oscilaciones. (Climate Variabilty and Oscillations; pdf, in Spanish).
• Magazine: La Ciencia y el Hombre (Science and Mankind), 27, 2, Universidad Veracruzana.

• Ruiz-Barradas, A., 2012.
• Inundaciones 2010: Lluvias extremas en Veracruz y su relación con la variabilidad natural del clima (Floods in 2010: Extreme rainfall in Veracruz and its relationship with natural climate variability; pdf, in Spanish).
• Book: Inundaciones 2010 en el estado de Veracruz (Floods in 2010 in the state of Veracruz, Mexico), Universidad Veracruzana, COVECYT, Ed. Tejeda Martínez, A., 113-134.

• Torres Alavés, J. A., A. Tejeda Martínez, J. L. Vázquez Aguirre, M. Brunet India, P. Hernández Avila and Ruiz-Barradas, A., 2010.
• Indices de cambio climático y análisis de variabilidad en el Estado de Veracruz, México. (Climate change indices and analysis of climate variability in the state of Veracruz, Mexico; pdf, in Spanish).
• Proceedings: VII Congreso de la Asociación Española de Climatología: Clima, Ciudad y Ecosistemas, Madrid, España. (VII Congress of the Spanish Association of Climatology: Climate, City and Ecosystems, Madrid, Spain). Series A, no. 7, 295-304.

• Chapters in Books

• Ruiz-Barradas, A., and S. Nigam, 2023:
• Climate and climate change in the Mekong River basin. (pdf).
• Chapter 1 in the Book: The Mekong River Basin. Ecohydrological Complexity from Catchment to Coast
• Ecohydrology from Catchment to Coast Series, Elsevier, 600pp.
• Eds. H. Q. Nguyen, H. Apel, Q. B. Le, V. Sridhar. ISBN 9780323908146.

• Nigam, S. and Ruiz-Barradas, A., 2016.
• Key Role of the Atlantic Multidecadal Oscillation in 20th Century Drought and Wet Periods over the US Great Plains and the Sahel (pdf).
• Chapter 21 in the Book: Dynamics and Predictability of Large-scale High-Impact Weather and Climate Events.
• Eds. Jianping Li, Richard Swinbank, Hans Volkert and Richard Grotjahn. Cambridge University Press.

• Nigam, S., Y. Zhao, Ruiz-Barradas, A., and T. Zhou, 2015:
• The South-Flood North-Drought Pattern over Eastern China and the Drying of the Gangetic Plain: Observations, Simulations, and Origin (pdf).
• Chapter 22 in the Book: Climate Change: Multidecadal and Beyond
• World Scientific Series on Asia-Pacific Weather and Climate, V. 6, 376pp.
• Eds. Michael Ghil, Mojif Latif, Mike Wallace and C.P. Chang. World Press. ISBN 978-981-4579-92-6.

• Tejeda-Martínez, A., J. A. Torres-Alavés, Ruiz-Barradas, A., S. Miranda-Alonso, and S. Salazar-Lizán, 2011.
• Evaluations and Perceptions of the Climate Change in the State of Veracruz (Mexico): An Overview (pdf).
• Chapter 8 in the book: Climate Change - Socioeconomic Effects.
• Ed. H. Kheradmand. ISBN 978-953-307-411-5.

• Ruiz-Barradas, A., A. Tejeda Martínez, S. Miranda Alonso, and R. H. Flores Zamudio, 2010.
• Climatología (Climatology; pdf, in Spanish).
• Chapter 3 in the Book: Atlas del Patrimonio Natural, Histórico y Cultural del Estado de Veracruz, Vol 1. Recursos Naturales (Atlas of the Natural, Historic and Cultural Heritage in the State of Veracruz, Mexico), Vol. 1: Natural Resources.
• Ed. Griselda Benítez Badillo and Carlos Welsh Rodríguez. ISBN 978-607-95131-6-0.

• Presentations & Posters

• Ruiz-Barradas, A., 2015.
• The coupled ocean-atmosphere system: who drives who?
• RIT on Weather, Chaos and Data Assimilation (ppt).
• University of Maryland
• June 15. College Park, Maryland.

• Ruiz-Barradas, A., 2015.
• La Oscilación Multidecadal del Atlántico: Estructura e Impactos (Atlantic Multidecadal Osciullation: Structure and Impacts; ppt in Spanish).
• Fac. de Instrumentación Electrónica y Ciencias Atmosféricas, Universidad Veracruzana (School of Electronic Instrumentation and Atmospheric Sciences, University of Veracruz)
• Feria Internacional del Libro Universitario (International Academic Book Fair)
• Foro Académico sobre Patrimonios Universales: Naturaleza y Cultura (Academic Forum on Universal Heritage: Nature and Culture)
• April 25-May 3. Xalapa, Veracruz, Mexico.

• Ruiz-Barradas, A., 2015.
• El Clima: Cuando Varía y Cuando Cambia (Climate: When it Varies and When it Changes; ppt in Spanish).
• Feria Internacional del Libro Universitario (International Academic Book Fair)
• Foro Académico sobre Patrimonios Universales: Naturaleza y Cultura (Academic Forum on Universal Heritage: Nature and Culture).
• April 25-May 3. Xalapa, Veracruz, Mexico.

• Ruiz-Barradas, A., 2011.
• Natural Climate Variability: Floods in Veracruz, Mexico in 2010.
• WCRP - Open Science Conference: Climate Research in Service to Society (ppt).
• October 24-28. Denver, CO.

• Ruiz-Barradas, A., 2010.
• Inundaciones en Veracruz: Recurrentes y Naturales (Floods in Veracruz: Recurrent and Natural; ppt in Spanish).
• Foro Inundaciones 2010 en el Estado de Veracruz (Forum on Floods in the State of Veracruz in 2010; ppt, in Spanish).
• November 22. Universidad Veracruzana. Boca del Río, Veracruz, MEXICO.

• Ruiz-Barradas, A., 2010.
• Variabilidad y Cambio Climático (Climate Variability and Change; ppt in Spanish).
• Conferencia sobre Cambio Climático y Hábitat (Conference on Climate Change and Habitat)
• July 19. Universidad Vearcruzana, Veracruz, MEXICO.

• Ruiz-Barradas, A., 2010.
• Informandonos sobre la Variabilidad y Cambio Climáticos (Finding out on Climate Variability and Change; ppt in Spanish).
• The Washington Center.
• May 10. Washington, DC.

• Ruiz-Barradas, A., and S. Nigam, 2010.
• Pentad analysis of summer precipitation variability over the Southern Great Plains and its relationship with the land-surface (ppt poster.
• Atmospheric System Research Science Team Meeting.
• March 17. Bethesda, MD.

• Ruiz-Barradas, A., 2010.
• Lluvia sobre el Este de México: Variabilidad y Proyecciones ante el Cambio Climático (Rain over Eastern Mexico: Variability and Projections under Climate Change; ppt in Spanish).
• Encuentro sobre Manejo de Cuencas y Cambio Climático (Meeting on Basins and Climate Change).
• February 5. Boca del Río, Veracruz, MEXICO.

• Ruiz-Barradas, A., 2009.
• Variabilidad y Cambio de la Precipitación en el Este de México....que nos dicen los Modelos? (Precipitation Variability and Change in Eastern Mexico...What do Climate Modells tell us?; ppt in Spanish)
• Universidad Veracruzana. (ppt, in Spanish)
• April 30. Xalapa, Veracruz, MEXICO.

• Ruiz-Barradas, A., 2009.
• Variabilidad de la Lluvia en Veracruz (Rainfall Variability in Veracruz, Mexico; ppt in Spanish).
• Métodos Estadísticos para el Estudio del Cambio Climático en el Segundo Encuentro Iberoamericano de Biometría (Statistical Methods for Climate Change Study in the Second Iberoamerican Meeting on Biometry).
• July 31. Boca del Río, Veracruz, MEXICO.

• Ruiz-Barradas, A., and S. Nigam, 2008.
• SST North American Drought Links in 20th Century Simulations and 21st Century Projections (ppt poster.
• NOAA's 33rd Annual Climate Diagnostics and Prediction Workshop and CLIVAR Drought Worksho.
• October 20-24, 2008. Lincoln, NE.

• Ruiz-Barradas, A., and S. Nigam, 2008.
• Seasonal Hydroclimate variability over North America: Global and Regional Reanalyses Faulty Evapotranspiration (ppt).
• CPPA PIs' Metting.
• September 29-October 1. Silver Spring, MD.

• Ruiz-Barradas, A., and S. Nigam, 2008.
• CLIVAR Drought Modeling Experiments with CAM3.5: Interim Report (ppt).
• 13th Annual CCSM Workshop.
• June 17-19. Breckenridge, CO.

• Ruiz-Barradas, A., and S. Nigam, 2007.
• El Hidroclima del Siglo XX en Norte América según los Modelos del IPCC (The XX Century Hydroclimate in North America according to the IPCC Modesl; ppt in Spanish).
• Universidad Veracruzana.
• July 20. Xalapa, Veracruz, MEXICO.

• Ruiz-Barradas, A., and S. Nigam, 2007.
• Drought Modeling Experiments (ppt).
• 12th Annual CCSM Workshop.
• June 19-21. Breckenridge, CO.

• Ruiz-Barradas, A., and S. Nigam, 2007.
• Diagnosis of North American Hydroclimate Variability in IPCC's Climate Simulations (ppt poster).
• 12th Annual CCSM Workshop.
• June 19-21. Breckenridge, CO.

• Ruiz-Barradas, A., and S. Nigam, 2006.
• North American hydroclimate variability in IPCC's 20th century climate simulations (ppt).
• AGU's Joint Assembly Meeting.
• May 23-26. Baltimore, MD.

• Ruiz-Barradas, A., and S. Nigam, 2005.
• Interannual variability of Great Plains summer rainfall in reanalyses and NCAR and NASA AMIP-like simulations (ppt).
• 5th International Scientific Conference on the Global Energy and Water Cycle.
• June 20-24. Costa Mesa, CA.

• Ruiz-Barradas, A., and S. Nigam, 2005.
• The structure and nature of warm-season interannual variability of the Great Plains hydroclimate (ppt).
• Workshop on Predicting Drought on Seasonal to Decadal Time Scales.
• May 17-19. Adelphi, MD.

• Ruiz-Barradas, A., and S. Nigam, 2005.
• Diagnosis of summer hydroclimate over North America in 20th century climate simulations (ppt poster).
• Workshop on Analyses of Climate Model Simulations for the IPCC AR4 (ppt poster).
• March 1-4. Honolulu, HI.

• Ruiz-Barradas, A., and S. Nigam, 2004.
• Interannual variability of warm-season rainfall over the US Great Plains in NCAR/CAM and NASA/NSIPP simulations: Intercomparisons for NAME (ppt poster).
• 1st International CLIVAR Science Conference.
• June 21-25, Baltimore, MD.


• 9th Annual CCSM Workshop.
• July 7-9, Santa Fe, NM.

• Ruiz-Barradas, A., and S. Nigam, 2003.
• Interannual variability of warm-season rainfall over the US Great Plains in NASA/NSIPP and NCAR/CAM2.0 AMIP (ppt).
• simulations.
• University of Maryland. Department of Meteorology.
• December 11, 2003.

• Ruiz-Barradas, A., and S. Nigam, 2003.
• Interannual variability of North America Summer Precipitation in NASA/NSIPP and CAM2.0 AMIP simulations (ppt).
• NSIPP 2003 Science Team Meeting.
• September 3-4. Adelphi, MD.

• Ruiz-Barradas, A., and S. Nigam, 2003.
• Interannual variability in summer hydroclimate over North America in CAM2.0 and NSIPP AMIP (ppt poster)
• simulations.
• 8th Annual CCSM Workshop.
• June 24-26.Breckenridge, CO.

• Ruiz-Barradas, A., 2003.
• Climate variability in the tropical Atlantic region and its Hydroclimate Impact over the the North.
• American Monsoon Region (in Spanish).
• Universidad Veracruzana.
• January 7. Xalapa, Veracruz, Mexico.

• Ruiz-Barradas, A., J. A. Carton, and S. Nigam, 2002.
• Interannual-to-decadal climate variability in the tropical Atlantic region.
• NASA/NSIPP Seminar at GSFC.
• October 30. Greenbelt, MD.

• Ruiz-Barradas, A., S. Nigam, and E. DeWeaver, 2002.
• Summer precipitation and moisture fluxes over the US in the NSIPP AMIP simulation.
• NSIPP 2002 Science Team Meeting.
• September 16-17. Greenbelt, MD.

• Ruiz-Barradas, A., J. A. Carton, and S. Nigam, 2002.
• Response of the atmosphere to climate variability in the tropical Atlantic (ppt poster).
• AGU Spring Meeting.
• May 28-31. Washington, DC.

• Ruiz-Barradas, A., and S. Nigam, 2002.
• Seasonal moisture flux variability over North America in AMIP simulation and atmosphere reanalyses (ppt poster).
• Mississippi River Climate and Hydrology Conference.
• May 13-17. New Orleans, LA.

• Wang, J., A., Ruiz-Barradas, and J. A. Carton, 2001.
• Modeled and observed air/sea fluxes in coupled modes in the tropical Atlantic.
• WCRP/SCOR Workshop on "Intercomparison and Validation of Ocean-Atmosphere Flux Fields".
• May 21-24, Potomac, MD.

• Ruiz-Barradas, A., J. A. Carton, and S. Nigam, 2000.
• Interannual-to-decadal air-sea interactions in the tropical Atlantic sector. NCAR/ASP Colloquium: "Dynamics of Decadal to
• Centennial Climate Variability".
• July 17-28. Boulder, CO.

• Ruiz-Barradas, A., J. A. Carton, and S. Nigam, 2000.
• Non seasonal air-sea interactions in the tropical Atlantic sector.
• AGU Spring Meeting.
• May 30 - June 3. Washington, D.C.

• Reviewing Activities

• Journals

• Advances in Space Research
• Atmósfera
• Atmospheric Research
• Biología Tropical
• Climate Dynamics
• Deep-Sea Research, Part I
• Geophysical Research Letters
• International Journal of Climatology
• Journal of Climate
• Journal of Geophysical Research-Atmospheres
• Journal of Hydrology
• Journal of Hydrometeorology
• Water


• Associate Editor for Atmósfera

• Proposals

• National Science Foundation
• Mexican's National Council for Science and Technology (CONACyT )

• Plan Veracruzano Preliminar de Adaptación al Cambio Climático (Veracruz's Preliminary Plan on Adaptation to Climate Change)
• Sponsor: British Embassy's Global Opportunities Fund: Climate Change and Energy Programme.
• Coordinators: Instituto Nacional de Ecología (Mexico's National Institue of Ecology)
• Universidad Veracruzana: Grupo de Climatología Aplicada (University of Veracruz: Group of Applied Climatology)

• Ph.D. Committees

• Juan Perez Quezada's Research Progress Committee (2013-2017). National Autonomus University of Mexico
• Katherin Luken's Prospectus Defense (29/1/2016) and Research Progress Committee (2016-present). AOSC, University of Maryland.
• Steven Baxter's Defense (11/20/2015). AOSC, University of Maryland.
• Argyro Kavvada's Defense (5/6/2014). AOSC, University of Maryland. Co-Chair.
• Kye-Hwan Kim's Defense (5/28/2013). AOSC, University of Maryland.
• Bin Guan's Defense (10/31/2008). AOSC, University of Maryland.
• Megan Linkin's Defense (05/16/2008). AOSC, University of Maryland.
• Ernesto Muñoz' Defense (11/15/2007). AOSC, University of Maryland.
• Scott Weaver's Defense (04/18/2007). AOSC, University of Maryland.
• Antonio Luna's Prospectus Defense (7/14/2010). Math Department. Universidad Veracruzana, Veracruz, MEXICO.
• Seung-Jae Lee's Prospectus Defense (12/12/2008). AOSC, University of Maryland.
• Massimo Bollasina's Prospectus Defense (05/29/2008). AOSC, University of Maryland.

• Conferences

• Convener of the session "Role of Circulation in Regional Hydroclimate"
• AGU's 2006 Joint Assembly Session. May 23-26. Baltimore, MD

• Memberships

• Mexican National System of Researchers, Level 1, (01/2011-12/2013)
• American Meteorological Society, and American Geophysical Union.
• Member of the Sistema Nacional de Investigadores (Mexican National System of Researchers) as research assistant. 06/1993 - 08/1995.

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