Development of Improved and Verified GCM Atmospheric Ice Radiation and Microphysics Parameterizations Using SHEBA data

该项目是北冰洋地表热量预算项目综合提案的一部分。SHEBA项目目前阶段的目标是利用一项为期一年的试验期间收集的数据，在该试验期间，一艘冻结在波弗特海和楚科奇海冰包中的破冰船被用作数据收集平台。收集了与海洋-冰-大气系统反馈有关的整个年度周期的数据，并将用于改进海冰对全球变暖反应的模式参数。该项目将利用飞机数据来研究冰晶体大小/形状对热平衡中云辐射反馈部分的热辐射特性的作用。云辐射反馈的新的参数化对于确定总体热平衡将是非常重要的。该项目的活动是加强SHEBA研究项目成果的一项重要努力，该项目旨在改进柱状、中尺度和一般环流模式，以便更好地模拟北极海冰对预测的全球变暖趋势的反应。

This project is part of an integrated set of proposals for the Surface Heat Budget of the Arctic (SHEBA) Ocean project. The goal of the current phase of the SHEBA project is to use data collected during a one year experiment during which an icebreaker frozen into the ice pack of the Beaufort and Chukchi Seas was used as a platform for data collection. A full annual cycle of data relating to feedbacks of the ocean-ice-atmosphere system was collected and will be used to improve model parameterizations of sea ice response to global warming. This project will utilize aircraft data to examine the role of ice crystal size/shape on the heat radiation properties in the cloud-radiation feedback component of the heat balance. New parameritizations of cloud-radiation feedbacks will be very important in determining overall heat balance. The activities of this project are an essential effort to enhance the outcome of the SHEBA research projects designed to improve column, mesoscale and General Circulation Models (GCMs) that facilitate better simulations of the Arctic sea ice response to projected global warming trends.