Collaborative Research: Modeling Hydrologic Processes in the Arctic: A Watershed Approach for Regional and Global Climate Models

合作研究：北极水文过程建模：区域和全球气候模型的分水岭方法

• 批准号: 0002369
• 负责人: Marc Stieglitz
• 金额: $ 28.39万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0002369&HistoricalAwards=false
• 关键词: Collaborative; Research; Modeling; Hydrologic; Processes

The project will modify an existing catchment-based Land Surface Model to include the effects of snow and freeze-thaw dynamics on Arctic tundra hydrology. The development of this model will fill a gap in currently available models that do not incorporate the combined effects of snow physics, permafrost dynamics and topography on tundra hydrology. The current deficiency has severely limited efforts aimed at understanding and predicting the effects of climate change on arctic ecosystems. By addressing this problem this project will have a major impact on our understanding of the responsiveness of the Arctic to climate change.

该项目将修改现有的基于集水区的陆地表面模型，以包括降雪和冻融动力学对北极冻土带水文的影响。这一模型的开发将填补目前现有模型中的一个空白，这些模型没有考虑雪物理、永久冻土动力学和地形对冻土带水文的综合影响。目前的不足严重限制了旨在了解和预测气候变化对北极生态系统影响的努力。通过解决这一问题，该项目将对我们理解北极地区对气候变化的反应产生重大影响。