Precipitation Features of the Maritime Continent in Parameterized and Explicit Convection Models

• DOI: 10.1175/jcli-d-19-0416.1
• Publication Date: 2019-11-20T15:43:20Z
• Authors: D. Argüeso; R. Romero; V. Homar
• Keywords: Diurnal cycle; Archipelago; Atmospheric convection

Abstract The Maritime Continent is the largest archipelago in world and a region of intense convective activity that influences Earth’s general circulation. features one warmest oceans, very complex topography, dense vegetation, an intricate configuration islands, which together result specific precipitation characteristics, such as marked diurnal cycle. Atmospheric models poorly resolve deep convection processes generate rainfall show fundamental errors simulating precipitation. Spatial resolution use schemes required to represent subgrid circulations have been pointed out culprits these errors. However, running at kilometer scale explicitly most systems thus are expected contribute solve challenge accurately Continent. Here we investigate differences simulated characteristics for different representations convection, including parameterized explicit, various spatial resolutions. We also explore vertical structure atmosphere search physical mechanisms explain main identified fields across model experiments. Our results indicate both increased representing produce more realistic simulation features, correct cycle over land ocean. found structures shallow clouds experiments they responsible timing distribution patterns representation