Interaction of Convection and Large-Scale Tropical Flows

该项目的目标是更好地了解热带深层对流与大尺度大气流动之间的相互作用。首席研究员将开发一个哈德利环流的动力学模型，或位于赤道或赤道附近的深对流宽带。模型域中某些部分的积云将使用嵌套网格（在粗分辨率网格内的高分辨率网格）方法显式解析。模拟重要的物理过程，如云辐射相互作用、深对流的纬向组织以及海气界面感热、水汽和动量的交换。这项研究对于提高我们对天气和气候模式中大气环流的理解非常重要。它还应该提供关于如何在大规模和全球模型中最好地（隐式地）表示积云活动的见解。

The goal of this project is to better understand the interaction between deep convection in the tropics and large-scale atmospheric flows. The principal investigator will develop a dynamical model of the Hadley circulation, or broad band of deep convection located on or near the equator. Cumulus clouds in certain parts of the model domain will be explicitly resolved using a nested-grid (high resolution grid within a coarser resolution grid) approach. Important physical processes such as cloud-radiation interactions, latitudinal organization of deep convection, and the exchanges of sensible heat, water vapor, and momentum at the air-sea interface will be simulated. This research is important for improving our understanding of the general circulation of the atmosphere in weather and climate models. It should also provide insights as how best to represent (implicitly) cumulus cloud activity in large-scale and global models.