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

该项目是北极海洋表面热收支（SHEBA）项目综合提案的一部分。SHEBA项目当前阶段的目标是使用在为期一年的实验中收集的数据，在此期间，一艘被冻结在波弗特海和楚科奇海的浮冰中的破冰船被用作数据收集的平台。收集了与海洋-冰-大气系统反馈有关的完整的年循环数据，这些数据将用于改进海冰对全球变暖响应的模式参数化。该项目将利用飞机数据，在热平衡的云辐射反馈组件中，检验冰晶尺寸/形状对热辐射特性的作用。云辐射反馈的新参数化对于确定总体热平衡非常重要。该项目的活动是加强SHEBA研究项目成果的重要努力，该项目旨在改进柱状、中尺度和环流模式（GCMs），从而更好地模拟北极海冰对预估全球变暖趋势的响应。

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.