The Interaction Between Deep Convection and Easterly Waves over Tropical North Africa: A Weather State Perspective

作者: Ademe Mekonnen , William B. Rossow

DOI: 10.1175/2011JCLI3900.1

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摘要: AbstractThe interaction between deep convection and easterly waves over tropical North Africa is studied using a weather state (WS) dataset from the International Cloud Climatology Project (ISCCP) reanalysis products European Centre for Medium-Range Weather Forecast, as well radiative fluxes ISCCP precipitation Global Precipitation Project. Composite analysis based on 21 yr of data shows that stronger latent heating atmosphere are associated with stronger, more organized, convective activity than weaker, less activity, implying any transition to organized increases atmospheric heating. Regression composites meridional wind predictor reveal coherent westward propagation WS large-scale anomalies Arabian Sea into East through West Africa. The enhanced, but unorganized, which devel...

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