Climate Modeling and Diagnostic Research

塞勒斯博士将利用亚利桑那大学（University of Arizona）的气候模型，在大气二氧化碳负荷翻倍的基础上，进行详细的数值实验。这种模式类型介于全大气环流模式（GCM）和简单的能量平衡模式之间，因此在保留更复杂模式的一些重要特征的同时，促进了长时间的快速模式整合。数值工作的重点将是系统地研究模型中所有参数化对CO2加倍的敏感性。这将有助于我们理解导致全球温度敏感性的因素，根据不同的模式，gcm的全球温度敏感性可能在2.8C到5.2C之间。这项工作的结果将有助于确定那些需要非常精确地建模或参数化的过程。

Dr. Sellers will carry out detailed numerical experiments based on doubled carbon dioxide loading of the atmosphere, using the University of Arizona's climate model. This model-type falls between the full general circulation model (GCM) and a simple energy balance model and thus facilitates rapid model integrations for long time periods while retaining some of the important features of a more complex model. Focus of the numerical work will be on systematic investigation of the CO2 - doubling sensitivity of the model to all of the parameterizations in the model. This would aid in our understanding of factors that contribute to the global temperature sensitivity, which for GCMs may range from 2.8C to 5.2C depending upon the model. The results of this work would help pin down those processes that need to be very accurately modeled or parametarized.