Collaborative Research: Evaluation of Snow Simulations in the Second Phase of the Atmsopheric Model Intercomparison Project (AMIP-II)

大气模式比较项目(AMIP-II)第二阶段积雪模拟的评估本项目的总体目标是评估大气模式比较项目(AMIP-II)第二阶段提交的全球环流模式(GCM)中积雪覆盖面积和雪量的模拟结果。AMIP是一项确定大气气候模型中系统误差的国际努力。确定了评估AMIP-II雪模拟的三个主要目标。它们是：(1)雪盖面积(SCA)气候学和运动学评价；(2)雪团气候学评价；(3)与雪有关的大气环流模式评价。雪是地表能量通量的重要调节器，也是北半球最大的季节变化地表参数之一。这些研究将帮助建模人员从大气动力学和地表参数的角度来评估他们对雪的处理。通过使用有偏差的降雪模拟识别区域、模型和模型特征，这项研究将帮助建模人员诊断地表通量，这是与气候预测相关的重要物理过程。

AbstractATM-9820920Robinson, David A.Rutgers UniversityTitle: Evaluation of Snow Simulation in the Second Phase of the Atmospheric Model Intercomparison Project (AMIP-II)The overall goal of this project is to evaluate simulations of snow covered area and snow mass in General Circulation Models (GCM) submitted under the auspices of the second phase of the Atmospheric Model Intercomparison Project (AMIP-II). AMIP is an international effort to determine the systematic errors in atmospheric climate models. Three main objectives are identified to evaluate AMIP-II snow simulations. These are: (1) evaluation of snow covered area (SCA) climatology and kinematics; (2) evaluation of snow mass climatologies; and (3) evaluation of atmospheric circulation patterns associated with snow. Snow is an important modulator of surface energy fluxes, and one of the largest seasonally varying surface parameters over the Northern Hemisphere. These investigations will help modelers evaluate their treatment of snow, from the perspectives of both atmospheric dynamics as well as surface parameterizations. By identifying regions, models, and model characteristics with biased snow simulations, this research will aid modelers in their diagnoses of surface fluxes, an important physical process relevant to climate prediction.