Abstract

Abstract During the 120 days of the TOGA COARE intensive observation period, there was an enhanced network of rawinsonde stations covering a large portion of the equatorial West Pacific. These soundings were of sufficient quality and frequency to permit computation of line integral beat and moisture budgets over a variety of large-scale arrays. In this study an enhanced operational dataset is used to compute rainfall, surface beat, and moisture fluxes, and vertical profiles of diabatic and/or subgrid-scale heating and moistening over these arrays. Time series of daily rainfall computed from beat and moisture budgets are presented over seven arrays, including the intensive flux array, outer sounding array, and large-scale array. Vertical profiles of apparent beat source and apparent moisture sink are analyzed and presented for different arrays and for different rainfall rates. The mean budget-derived rainfall ranged from 4 to 12 mm day−1 over the various arrays, with the most rain occurring within the inte...

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