Collaborative Research: The Role of Spatial and Temporal Variability of Pan-Arctic River Discharge and Surface Hydrological Processes on Climate

合作研究：泛北极河流流量和地表水文过程的时空变化对气候的作用

• 批准号: 0230372
• 负责人: Dennis Lettenmaier
• 金额: $ 75.2万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2008-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0230372&HistoricalAwards=false
• 关键词: Collaborative; Research; Role; Spatial; Temporal

The proposed research addresses the question "How will the coupled arctic climate system respond to changes in riverine discharge of freshwater, and how to the temporal and spatial variability of freshwater discharge and changes therein interact with the dynamics of high latitude climate?". The project proposes to perform a series of numerical simulations using existing models that incorporate sea ice, atmosphere and ocean processes. Science questions will be posed through model runs in which sea ice, ocean, and land surface models are run off-line, and aspects of the off-line climatologies will be prescribed in partially coupled runs of the fully coupled system. The results of the partially coupled runs will be compared with results of fully coupled, ensemble climate simulations in order to isolate the effects of interactions among the land, sea ice, ocean and atmosphere.

拟议的研究涉及这样一个问题：“耦合的北极气候系统将如何应对河流淡水流量的变化，以及淡水流量的时空变异性及其变化如何与高纬度气候的动态相互作用？”该项目建议使用包含海冰、大气和海洋过程的现有模型进行一系列数值模拟。科学问题将通过模型运行提出，其中海冰、海洋和陆地表面模型离线运行，离线气候的各个方面将在完全耦合系统的部分耦合运行中规定。部分耦合运行的结果将与完全耦合的整体气候模拟的结果进行比较，以分离陆地、海冰、海洋和大气之间相互作用的影响。