Coupling a Thickness-Distribution Model of Sea Ice with Vertical Temperature Resolution to the NCAR Climate System Model

将具有垂直温度分辨率的海冰厚度分布模型与 NCAR 气候系统模型耦合

• 批准号: 9906003
• 负责人: Michael Steele
• 金额: $ 2.49万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-05-01 至 2000-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9906003&HistoricalAwards=false
• 关键词: Coupling; Thickness; Distribution; Model; Sea

The proposed exploratory research will attempt to couple a thickness-distribution model of sea ice with vertical temperature resolution to the NCAR CSM. An ice thickness distribution model resolves multiple thickness categories on the sub-grid scale and allows an explicit treatment of ice deformation. Inclusion of an ice thickness-distribution model and vertical temperature resolution in the ice affects ice growth and decay as well as the exchange of heat and moisture between atmosphere and ocean. These processes influence the mean state and sensitivity of high latitude climate. The thickness distribution model uniquely resolves a vertical temperature profile in the sea ice while strictly conserving energy and can be integrated with fewer categories than traditional methods. The work is important because it will result in an improved sea ice model in the CSM, one that uses more realistic thermodynamics.

拟议的探索性研究将尝试将海冰厚度分布模式与垂直温度分辨率耦合到NCAR CSM。冰厚度分布模型解决了子网格尺度上的多个厚度类别，并允许显式处理冰变形。冰层厚度分布模型和冰中垂直温度分辨率的加入影响了冰的生长和衰退以及大气和海洋之间的热量和水分交换。这些过程影响着高纬度气候的平均状态和敏感性。厚度分布模型在严格守恒的同时唯一地解析了海冰中的垂直温度分布，并且与传统方法相比可以集成更少的类别。这项工作很重要，因为它将导致CSM中改进的海冰模型，一个使用更真实热力学的模型。