Balanced Flow and Convection over the Tropical Oceans

9311735 Raymond这项研究的前提是热带大气中对流系统的基本动力学可以用非线性平衡模式和积云对流、太阳和热辐射以及地面通量的参数化相结合来表示。首席研究员认为，平衡模式的概念框架可用于研究与热带地区对流有关的各种尺度的大气运动，并有可能为动力学提供新的见解。非线性平衡模式的预测将与三个不同热带领域计划的一些观测结果进行比较，每个热带领域计划都侧重于一种不同的热带现象：夏威夷雨带计划(地形强迫雨带)、墨西哥的热带实验(热带气旋发生)和海洋-大气耦合响应实验(Madden-Julian振荡、西风暴发和赤道槽)。对该项目的支持将由大型动力气象学、中尺度动力气象学和气候动力学计划共同提供。***

9311735 Raymond The premise underlying this research is that the essential dynamics of convective systems in the tropical atmosphere can be represented by a combination of a nonlinear balance model and parameterizations for cumulus convection, solar and thermal radiation, and surfaces fluxes. The principal investigator argues that conceptual framework of the balanced model can be used to study a variety of scales of atmospheric motion related to convection in tropical regimes, and has the potential for providing new insights into the dynamics. Predictions of a nonlinear balance model will be compared with some of the observations from three different tropical field programs, each of which focused on a different tropical phenomena: the Hawaiian Rainband Project (orographically forced rainbands), the Tropical Experiment in Mexico (tropical cyclogenesis), and the Coupled Ocean-Atmosphere Response Experiment (Madden-Julian oscillation, westerly wind bursts, and equatorial troughs). The support for this project will be shared by the Large-scale Dynamic Meteorology, Mesoscale Dynamic Meteorology, and Climate Dynamics Programs. ***