An Iteratively Coupled Modeling Approach to Investigating the 'Equable Climate Problem'

摘要ATM-9810799斯隆，Lisa C.加州大学圣克鲁兹分校标题：一种迭代耦合的建模方法来研究“均衡气候问题”均衡气候似乎在整个地球历史上很常见，但却没有确定的原因。该奖项支持一项研究，该研究旨在探索温暖气候状态下的海洋-大气联系，并弥合独立模型和交互耦合模型之间的差距。独立的大气和海洋模型将在一项研究中迭代耦合，研究气候平衡的原因。模型结果将用代理海洋和陆地古气候数据进行检验，以评估建模方法。海洋-大气系统的一系列三维动力学模式将被用来探索海洋经向热输送和大气环流的变化，作为大气二氧化碳和子午线海洋表面温度(SST)梯度的函数。这项研究将提供海洋-大气向极地热量输送的明确的、定量的机制，以及更全面地定义气候变暖间隔的动力学。此外，迭代模拟程序将有助于确定如何最好地在与当前显著不同的时期进行气候模拟。

Abstract ATM-9810799 Sloan, Lisa C. University of California, Santa Cruz Title: An Iteratively Coupled Modeling Approach to Investigating the "Equable Climate Problem" Equable climates appear to have been common throughout Earth history and yet are without well established cause. This award supports a study designed to explore ocean-atmosphere links in warm climates states, and to bridge the gap between stand-alone and interactively coupled models. Stand-alone atmospheric and ocean models will be coupled iteratively in a study which investigates causes of equable climates. Model results will be tested with proxy marine and terrestrial paleoclimate data, to evaluate the modeling approach. A hierarchy of three dimensional dynamical models of the ocean-atmosphere system will be useed to explore changes in oceanic meridional heat transport and the general circulation, as functions of atmospheric pCO2 and meridional sea surface temperature (SST) gradients. This study will provide explicit, quantitative mechanisms of ocean-atmosphere poleward heat transport, as well as more completely define the dynamics of warm climate intervals. In addition, the iterative modeling procedure will help to determine how best to approach climate modeling for times significantly different from present day.