Mechanisms of Climate Variability and Change

华盛顿大学ATM-9873691Hartmann，题目：气候变化和变化的机制这项拟议的工作将研究季节内到年际时间尺度上的气候变化和敏感性机制。将利用观测和一系列模型研究大气中产生的自然低频可变性及其与海洋混合层的相互作用。还将研究热带季节内振荡及其与中纬度天气异常的相互作用。设定热带季节内振荡长时间尺度的动力和热力学机制将利用NCAR CCM3 GCM的变化进行测试；这些机制将与观测分析进行比较。还将使用一系列模型研究云、辐射、海温和大气环流之间的相互作用以及对热带气候的影响。这项工作很重要，因为更好地了解中纬度和热带气候系统的动态在理论上和实践上都是有益的。

AbstractATM-9873691Hartmann, DennisUniversity of WashingtonTitle: Mechanisms of Climate Variability and ChangeThe proposed work will investigate climate variability and sensitivity mechanisms on intraseasonal to interannual time scales. The natural low-frequency variability generated within the atmosphere and its interaction with the oceanic mixed layer will be studied using observations as well as a hierarchy of models. The tropical intraseasonal oscillation and its interaction with midlatitude weather anomalies will also be investigated. Dynamic and thermodynamic mechanisms for setting the long time scale of the tropical intraseasonal oscillation will be tested using variations on the NCAR CCM3 GCM; these will be compared to the observational analysis. Interactions between clouds, radiation, SST and atmospheric circulation and the effect on tropical climate will also be investigated using a hierarchy of models. The work is important since an improved understanding of dynamics of the climate system in the middle latitudes and tropics has benefits both from a theoretical as well as practical point of view.