Professional Activities
| Oct. 1984: | NSF Review Panel for Young Presidential Awards, Washington, DC. |
| Dec. 14-18, 1987: | Invited U.S. Representative for the NSF Flood Hazard Workshop, U.S.-Asia Conference on Engineering for Mitigating Natural Hazards Damage, Bangkok, Thailand. |
| Sept. 16-28, 1989: | Co-Director of the NATO Advanced Study Institute on "Stochastic Hydrology and its Use in Water Resources Systems Simulation and Optimization," Peņiscola, Spain. |
| April 24-26, 1991: | NSF Panel Review for Site Visit to Center for Tropical Research, San Juan, P. Rico. |
| Oct. 1991 - Jul. 1992: | HydroQuebec Expert Panel, Montreal, Canada. |
| June 25, 1992: | Keynote Speaker on "Time and Space Aggregation of Streamflow Processes" at the International Workshop on Advances in Distributed Hydrology, Bergamo, Italy. |
| Jan. 1995: | NSF Panel Review for Young Presidential Awards, Washington DC. |
| Nov. 1995: | U.S. Director of the NSF "U.S.-Italy Research Workshop on the Hydrometeorology, Impacts and Management of Extreme Floods", Perugia, Italy. |
| 1987 - 1995: | Associate Editor, Journal of Hydraulic Engineering of ASCE. |
| Jan. 20, 1995: | Panel Member on "Special Topics in Probability and Statistics for Hydrometeorology", 75th Anniversary of the American Meteorological Society, Conference on Hydrology, Dallas, Texas. |
| 1995 - 2005: | Member of the Editorial Board of the Journal of Hydrologic Engineering of ASCE. |
| April 13-18, 1996: | World Bank Expert Panel, SEDAPAL, Peru. |
| June 7-9, 1996: | Invited U.S. Representative to the UNESCO Workshop on the Use of Multimedia in Hydrology and Water Resources, Polytechnical University of Catalunya, Barcelona, Spain. |
| Nov. 28, 1996: | Keynote Speaker on "Hydrology of Arid and Semiarid Regions", II International Conference on Mediterranean Hydrology, Valencia, Spain. |
| May 15, 1997: | Keynote Conference on "Risk and Uncertainty in Water Resources", II Latinamerican Conference on Environmental Risk, Valencia, Venezuela. |
| Nov. 5, 1997: | Keynote Conference on "Civil Engineering: A World of Risks and Uncertainties", XI National Congress of Civil Engineering, Trujillo, Peru. |
| Nov. 5, 1998: | Keynote Speaker on "Risk and Uncertainty Management of Extreme Hydrologic Events", V Annual Meeting on Watershed Management, Tacna, Peru. |
| May 25, 2000: | Keynote Speaker on "Large Scale Climatic Variability and Global Hydrology", Korean Water Resources Association, Seoul, Korea. |
| July 18, 2000: | Keynote Speaker on "Drought Analysis and Mitigation" WARREDOC, Perugia, Italy. |
| 2001 - Present: | Member of the Organizing Committee and Member of the Awards Committee of CSU/AGU Hydrology Days |
| Oct. 2002: | World Bank Expert Panel, SEDAPAL, Peru. |
| June 23, 2004: | Keynote Speaker on "Estimation of Low Flows and Droughts: Concepts and Applications", National University of Colombia, Medellin, Colombia. |
| Nov. 24, 2004: | Keynote Speaker on "Oceanic-Atmospheric Variability and its Relation to Extreme Events", International Seminar on New Perspectives of Scientific Research and Technology for Disaster Prevention and Assistance, INDECI, Lima, Peru. |
| Nov. 4, 2005: | Keynote Speaker on "Advances in the Estimation of the Severity of Droughts", 40th Anniversary of CIDIAT, Merida, Venezuela. |
| June 1, 2007: | Keynote Conference on "Advances in Characterizing Extreme Droughts", HYDRO II, Lima, Peru. |
| Nov. 20, 2007: | Keynote Conference on "Characterizing the Dynamics of Droughts Based on Stochastic Methods", HRSD UNESCO International Conference on "Hydrology and Water Management for Hazard Reduction and Sustainable Development", Manila, Philippines. |
| Jan. 2008 - Present: | Associate Editor of the Journal of Hydrology, Elsevier, Europe. |
| Mar. 21, 2009: | Keynote Speaker on "Long-Range Forecasting of Streamflows", I Congress of Water, National Agrarian University, Lima Peru. |
| April 14, 2009: | Keynote Speaker on "Climate Variability and Change in Water Resources", International Congress on Water, Environment, and Health: the Challenges of the Climate Change, Puebla, Mexico. |
| Oct. 2009: | Invited by Xerochore, 7th Framework Program (Europe), Workshop on Socio-Economic & Environmental Impacts of Droughts, Venice, Italy. |
| May 20, 2010: | 2010 Ven Te Chow Lecture on "Stochastic hydrology in the Framework of Climate Variability and Change", delivered at the ASCE/EWRI World Environmental & Water Resources Congress, Providence, Rhode Island, USA. |
| May 25, 2010: | Invited Lecture on "Hydrologic Variability and Change: The Role of Stochastic Hydrology", at International Workshop on Advances in Statistical Hydrology, Taormina, Italy, International Association of Hydrologic Science. |
| July 2010: | Keynote Speaker on "Stochastic Simulation and Forecasting in the Framework of Climate Variability and Change", 10th International Symposium on Stochastic Hydraulics, Water 2010, Quebec City, Canada. |
| Dec. 2010: | Invited Seminar at World Bank, Water Experts Meeting to discuss on Climate Variability and Change in Hydrology and Water Resources, Washington D.C. |
| Dec. 2011: | Keynote Speaker on "Estimating the Uncertainty of Extreme Hydrologic Events", 2nd International Seminar on "Typhoon and Flood Defense Strategies", Seoul, Korea. |
| May 31, 2013: | 2013 Enrico Marchi Lecture, "Quantifying Hydrologic Risk in a Changing World", Milan, Italy. |