The impact of soil moisture initialization on seasonal precipitation in West Africa
Andrea M. Sealy, Howard Univ., Washington, DC; and E. Joseph and C. H. Lu
The relationship between late spring (May-June) soil moisture and summer precipitation (July-August) is examined based on Reanalysis-2 (R-2) data analysis and Regional Spectral Model (RSM) simulations. Results will be presented from (1) an idealized initialization experiment that consists of a one-month integration to assess the atmospheric response to extreme dry and wet soil conditions, (2) an empirical orthogonal function (EOF) analysis of 1981-2004 May-June monthly R-2 soil moisture data to identify the leading modes of soil moisture variability in the region and (3) a realistic initialization experiment that consists of a seasonal integration (May-August) initialized with soil moisture patterns that are characteristic of the first two leading modes of soil moisture variability.
Joint Poster Session 1, Land-Atmosphere Interactions (Joint with 18th Conference on Climate Variability and Change and 20th Conference on Hydrology)
Tuesday, 31 January 2006, 9:45 AM-11:00 AM, Exhibit Hall A2
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