Abstract
Abstract Observational studies and model experiments make abundantly clear the need for a global perspective in order to understand the nature and causes of persistent regional precipitation anomalies. Rainfall in the deep tropics is particularly important as a forcing mechanism for the atmosphere's large-scale circulation and climate. Analysis of systematic space-based observations and surface marine data over the past three decades has vastly improved our understanding of tropical convective regimes and their relationship to surface conditions. The characteristics of the annual cycle of tropical convection and its relationship to sea surface temperature field and the general circulation of the tropics are reviewed. The hierarchal nature of tropical precipitation variability on time/space scales ranging from synoptic cloud clusters through the intraseasonal Madden-Julian Oscillation to multiyear El Nino-Southern Oscillation cycle is discussed. Links between tropical convection and extratropical precipita...
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