Generation of the Subsurface Climate Signal by Land Surface Processes in the North American Mid-Continent

北美中部大陆陆面过程产生地下气候信号

• 批准号: 0081864
• 负责人: Anthony England
• 金额: $ 30万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 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=0081864&HistoricalAwards=false
• 关键词: Generation; Subsurface; Climate; Signal; Land

This award is to support a study that addresses the generation of the subsurface geothermal climate signature through the application of a specialized Land Surface Process (LSP) model, investigating the temperature coupling between the atmosphere and the solid earth with the LSP model previously developed to describe the upward-propagating microwave signal seen by satellites. Project members will investigate both the adequacy of this LSP model to generate the downward propagating temperature signal utilized by geothermal scientists for climate reconstructions, and the effects upon the temperature signal induced by changes in landcover or mean precipitation. They will also investigate the generation of the subsurface temperature field in a special setting: the prairie grasslands of the North American mid-continent. The investigators will test the model's performance with an abundant dataset of subsurface temperature profiles already available from Nebraska, South Dakota, North Dakota, Manitoba, Saskatchewan and Alberta.

该奖项是为了支持一项研究，该研究通过应用专门的陆地表面过程(LSP)模型解决地下地热气候特征的产生问题，利用以前开发的描述卫星所看到的向上传播的微波信号的LSP模型来调查大气和固体地球之间的温度耦合。项目成员将研究LSP模型是否足以产生地热科学家用来重建气候的向下传播的温度信号，以及土地覆盖或平均降雨量的变化对温度信号的影响。他们还将在一种特殊的环境下研究次表层温度场的产生：北美中部大陆的草原草原。研究人员将利用内布拉斯加州、南达科他州、北达科他州、马尼托巴省、萨斯喀彻温省和艾伯塔省已有的丰富的地下温度分布数据集来测试该模型的性能。