Research Interests:    Hydroclimate variability and change over: Maryland, North America, SE Asia river basins;  Multiannual Droughts; Ocean's influence on the variability of summer precipitation over North America and SE Asia;  Trends in Arctic Sea Ice and their relation to Decadal-to-Multidecadal natural variability; Decadal-to-Multidecadal variability in the North Atlantic Ocean. Climate Diagnostic and Modeling; Monthly and seasonal forecasting; Coupled modes of variability in the tropical Atlantic; Atmosphere-sea interaction, land-sea-atmosphere interaction.