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This study examines the seasonal precipitation cycle in North America using regional reanalysis data, focusing on moisture flux variations and their impact on the Great Plains. The analysis validates hydroclimate patterns and identifies key climatological trends. Presented at the AMWG Meeting in 2007.
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Seasonal cycle of North American Precipitation (1979-2000 Climatology) Alfredo Ruiz-Barradas & Sumant Nigam University of Maryland NARR CAM3 3_fv_cmt2_dilute NARR: North American Regional Reanalysis (successfully assimilates precipitation) is used for hydroclimate validation here AMWG Meeting, January 29-31, 2007 CAM3 Ens. mean
CAM3 3_fv_cmt2_dilute Summer Climatology CI= 1mm/day >2 is shaded NARR CAM3 Precipitation Stationary Moisture Flux & Flux-Conv Evaporation
CAM3 3_fv_cmt2_dilute NARR CAM3 Precipitation Warm-season Regressions of the Great Plains Precipitation Index 1979-2000 Moisture Flux Evaporation CI=0.3 mm/day in all panels; >0.3 is shaded green