Cumulus Convection and Climate Dynamics

Renno博士试图确定各种机制的相对重要性，这些机制可能导致热带大气的大规模变化。除了评估一些影响湿对流波的机制理论（如wave-CISK和WISHE），他还将探索自己的新理论，不对称不透明不稳定性。他的策略是采用不同的积云参数化方案作为消除特定模拟中某些机制的手段。在一系列理想的GCM模拟中，将研究与热带波有关的各种机制，特别是与马登-朱利安涛动有关的机制。如果时间允许，PI还打算将他的模型结果与ECMWF的网格分析结果进行比较。该项目将与地球物理流体动力学实验室的Isaac Held博士合作进行。

Dr. Renno seeks to identify the relative importance of various mechanisms that may be responsible for the large-scale variability of the tropical atmosphere. In addition to evaluating a number of theories of mechanisms that affect moist convective waves (such as wave-CISK and WISHE), he will also explore a new theory of his own, Asymmetric Opacity Instability. His strategy is to employ different cumulus parameterization schemes as a means of eliminating certain mechanisms from a particular simulation. The various mechanisms will be examined in relation to tropical waves in general, and the Madden-Julian Oscillation in particular, in a series of idealized GCM simulations. If time allows, the PI also intends to compare his model results with ECMWF gridded analyses. This project will be carried out in collaboration with Dr. Isaac Held of the Geophysical Fluid Dynamics Laboratory.