Warm Season Land Surface--Climate Interactions in the U.S. Midwest

美国中西部暖季地表-气候相互作用拟议的合作研究(卡尔顿/宾夕法尼亚州立大学)特拉维斯大学，宾夕法尼亚州威斯康星州白水州和阿诺德/鲍尔州立大学。In)旨在确定陆地表面条件在当代(1981-1994年)暖季气候(4月至9月)中的作用。要研究的地理区域是以玉米带为中心的美国中西部潮湿的低地地区。PIs将确定土地覆盖参数(如植被、蒸散量、地表和土壤湿度)与一系列空间和时间尺度上的连接云量之间的联系。将利用来自GOES和NOAA AVHRR的数据，使用McIDAS和包括分形分析在内的统计技术的组合。常规气象数据和公布的土地覆盖数据将有助于证实卫星数据，并有助于确定分区域和时段的陆面-气候相互作用，其特征是对比植被状况、表层土壤湿度和大气条件，如湿度和风。这项工作很重要，因为它将加深我们对地表条件在美国玉米带地区季节性气候中的作用的理解。

AbstractATM-9876823Arnold, David L.Ball State UniversityTitle: Warm Season Land Surface-Climate Interactions in the U.S. MidwestThe proposed collaborative research (Carleton/Penn State Univ. PA, Travis/Univ. Wisconsin Whitewater WI, and Arnold/Ball State Univ. IN) aims to determine the role of land surface conditions in the contemporary (1981-1994) warm season climate (April through September). The geographical region to be studied is the humid lowland region of the Midwest US centered on the Corn Belt. The PIs will determine the association between land covers parameters (such as vegetation, evapotranspiration, surface and soil moisture) and connective cloudiness across a range of spatial and temporal scales. Data from GOES and NOAA AVHRR using McIDAS and a combination of statistical techniques including fractal analysis, will be utilized. Conventional meteorological data and published land cover data will help to corroborate the satellite data, and also assist in determination of land surface-climate interactions for sub-areas and time periods characterized by contrasting vegetation status, surface soil moisture, and atmospheric conditions such as humidity and wind. The work is important because it will enhance our understanding of the role of land surface conditions in seasonal climate of the corn belt region of the US.