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  1. AGU Members
  2. Randy D. Koster
Member Since 1983
Randy D. Koster
Retired, Self-Employed
Chair, Peter S. Eagleson Hydrologic Sciences Award Selection Committee
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Professional Experience
Self-Employed
Retired
2025 - Present
NASA Goddard Space Flight Center
Research Scientist
1987 - 2025
Education
Massachusetts Institute of Technology
Doctorate
1988
California Institute of Technology
Bachelors
1982
Randy's AGU Research
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Attribution of Contemporary Streamflow Variability to Climate, Dams and Land Cover Change in the Irrawaddy River, Southeast Asia
HYDROLOGIC EXTREMES IN SOUTH AND SOUTHEAST ASIA: CHALLENGES AND OPPORTUNITIES II POSTER
hydrology | 16 december 2025
Amazonia Wetland Methane Emission Decrease in 2023: Seasonal Forecasting of Global Wetlands Highlights Monitoring Targets in Critical Ecosystems
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
04 december 2025
Improved Hydrological Forecasting of Subseasonal Streamflow for the Irrawaddy and Mekong Rivers in Southeast Asia
WATER RESOURCES RESEARCH
14 october 2025
Ocean-Land Teleconnections and Chaotic Atmospheric Variability in Climate Models, with Implications for Real-World Behavior
CLIMATE VARIABILITY AND PREDICTABILITY ON SUBSEASONAL TO CENTENNIAL TIMESCALES II POSTER
atmospheric sciences | 12 december 2024
The Great Plains Low-Level Jet in MERRA-21C
DATA-DRIVEN SCIENCE: DEVELOPMENTS IN MACHINE LEARNING SUBGRID-SCALE PARAMETERIZATIONS AND IN REANALYSES ACROSS EARTH SYSTEM MODELING II POSTER
nonlinear geophysics | 12 december 2024
A comparison of methods for daily streamflow reconstruction in the Irrawaddy and Mekong Rivers
HYDROCLIMATIC ANALYSIS IN SOUTH AND SOUTHEAST ASIA: CHALLENGES AND OPPORTUNITIES III ORAL
hydrology | 11 december 2024
Optimizing the precipitation forcing used to produce subseasonal soil moisture and streamflow forecasts
UNCERTAINTY IN STREAMFLOW PREDICTION: IDENTIFYING AND SEPARATING UNCERTAINTIES BETWEEN QPE AND HYDROLOGICAL MODELING POSTER
hydrology | 10 december 2024
A Catchment-Based Global Model of River Flow, Velocity, and Storage for Earth-System Models
ADVANCEMENTS IN REMOTE SENSING, HYDROLOGIC MODELING, DATA ASSIMILATION, AND MACHINE LEARNING FOR TERRESTRIAL WATER CYCLE II ORAL
hydrology | 09 december 2024
Volunteer Experience
2025 - 2027
Chair
Peter S. Eagleson Hydrologic Sciences Award Selection Committee
Honors & Awards
Peter S. Eagleson Award
Received December 2024
Union Fellow
Received January 2010