Numerical Study of Tropical Cyclones

了解热带气旋的行为，以便更好地预测其强度和路径是本研究的最终目标。获得洞察力的一种方法是使用数值模型来检查循环的各个方面。该奖项将研究两个课题。首先研究了积云对流的潜热释放在气旋发展中的作用，以及如何在数值模式中最好地表示这种影响。研究的一个重要部分将是比较使用两种不同的积云参数化方案的模拟。第二个领域涉及研究β效应，即科里奥利加速度的纬度变化对热带风暴运动的影响。这项研究将使用光谱模型进行，该模型是在以前的国家科学基金会资助下开发的。在此奖项下进行的研究将用于完成研究生论文。

Understanding the behavior of tropical cyclones in order to better predict their intensities and path is the ultimate goal of this research. One way to gain insight is to use numerical models to examine various aspects of the circulation. Two topics will be pursued under this award. The first is a study of the role of latent heat release from cumulus convection in cyclone development and how the effects can best be represented in numerical models. An important part of the investigation will be to compare simulations using two different cumulus parameterization schemes. The second area involves a study of the role of the beta-effect, or latitudinal variation of the Coriolis acceleration, on the motion of tropical storms. The study will be done with a spectral model which was developed under a previous NSF grant. The research to be conducted under this award will be for the completion of a graduate student thesis.