Variability of Tropical Indian Ocean Induced by Intraseasonal Atmospheric Forcing

0136836/HAN本项目的目标是：确定受季节内大气强迫强迫的热带印度洋的变率；了解这种变率的动力学和热力学；研究大气季节内强迫对海洋季节变率和印度洋纬向模式的影响。其主要动机是印度洋洋流、混合层深度和上层海洋温度存在较大的季节内波动。人们希望，对相关过程的更好理解将有助于解开一些关于区域气候是如何决定的问题。将使用国家大气研究中心气候系统模型的海洋部分进行数值模拟。通过对印度洋对有和没有季节内变化的准现实强迫的反应进行比较的诊断性研究，将确定这种反应的性质和造成这种反应的过程。数值解还将与茉莉花和WOCE现场实验的数据进行比较。

0136836/HanThe goals of this project are: to determine the variability of the tropical Indian Ocean forced by intraseasonal atmospheric forcing; to understand the dynamics and thermodynamics of such variability; and to examine the impact of atmospheric intraseasonal forcing on oceanic seasonal variability and the Indian Ocean Zonal Mode. The primary motivation is the presence of large intraseasonal fluctuations in currents, mixed layer depth and upper ocean temperature in the Indian Ocean. It is hoped that a better understanding of the processes involved will be useful for unraveling some of the questions about how regional climate is determined.Numerical simulations will be made with the ocean component of the National Center for Atmospheric Rresearch's climate system model. From a diagnostic study of the comparison of the response of the Indian Ocean to quasi-realistic forcing with and without intraseasonal variability, the nature of the response, and the processes responsible for it, will be determined. Numerical solutions will also be compared to data from the JASMINE and WOCE field experiments.