Enhancement of Sea-Ice Processes in the Genesis GCM

Genesis GCM 中海冰过程的增强

• 批准号: 9423506
• 负责人: James Maslanik
• 金额: $ 6.41万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-15 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9423506&HistoricalAwards=false
• 关键词: Enhancement; Sea; Ice; Processes; Genesis

9423506 This project is an enhancement to the treatment of sea ice in a comprehensive numerical environmental model -- the Global Environmental and Ecological Simulation of Interactive Systems (GENESIS) model -- being developed by the National Center for Atmospheric Research. The enhancements will include a more physically representative surface albedo, turbulent fluxes of heat from leads and other openings in the ice, and the shear strength of the sea ice cover. An additional goal of the project is to investigate the effects of some approximations used in the GENESIS model that have not been adequately studied, and which may be the source of seasonally anomalous distributions of ice. These include the treatment of ice deformation as a cavitating fluid and the assumption of a linear thickness distribution. The output of the enhanced GENESIS model will be tested and validated with a stand- alone sea ice model and with existing arctic surface data. ***

9423506 该项目是对综合数值环境模型（由国家大气研究中心开发的全球环境与生态模拟交互系统（GENESIS）模型）中海冰处理的增强。 增强功能将包括更具物理代表性的表面反照率、来自冰中的引线和其他开口的热湍流以及海冰盖的剪切强度。 该项目的另一个目标是调查 GENESIS 模型中使用的一些近似值的影响，这些近似值尚未得到充分研究，这可能是冰季节性异常分布的根源。 这些包括将冰变形处理为空化流体以及线性厚度分布的假设。 增强型 GENESIS 模型的输出将使用独立海冰模型和现有的北极表面数据进行测试和验证。 ***