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Heat Capacity Mapping Mission (HCMM) thermal surface water mapping and its correlation to LANDSAT

机译:热容测绘任务(HCMM)热地表水测绘及其与LANDSAT的关系

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摘要

Graphics are presented which show HCMM mapped water-surface temperature in Lake Anna, a 13,000 dendrically-shaped lake which provides cooling for a nuclear power plant in Virginia. The HCMM digital data, produced by NASA were processed by NOAA/NESS into image and line-printer form. A LANDSAT image of the lake illustrates the relationship between MSS band 7 data and the HCMM data as processed by the NASA image processing facility which transforms the data to the same distortion-free hotline oblique Mercator projection. Spatial correlation of the two images is relatively simple by either digital or analog means and the HCMM image has a potential accuracy approaching the 80 m of the original LANDSAT data. While it is difficult to get readings that are not diluted by radiation from cooler adjacent land areas in narrow portions of the lake, digital data indicated by the line-printer display five different temperatures for open-water areas. Where the water surface response was not diluted by land areas, the temperature difference recorded by HCMM corresponds to in situ readings with rsme on the order of 1 C.
机译:呈现的图形显示了HCMM映射的安娜湖(一个13,000齿状的湖,为弗吉尼亚州的核电厂提供冷却)的水表面温度。 NASA产生的HCMM数字数据由NOAA / NESS处理成图像和行式打印机形式。湖泊的LANDSAT图像说明了由NASA图像处理设备处理的MSS 7波段数据与HCMM数据之间的关系,该设备将数据转换为相同的无失真热线倾斜墨卡托投影。通过数字或模拟手段,两个图像的空间相关性相对简单,并且HCMM图像具有接近原始LANDSAT数据80 m的潜在精度。虽然很难获得不被湖泊狭窄区域中较冷的相邻陆地区域的辐射所稀释的读数,但由行式打印机显示的数字数据显示出开放水域的五个不同温度。如果水面响应没有被陆地面积稀释,则由HCMM记录的温度差对应于rsme的原位读数,约为1C。

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    Colvocoresses, A. P.;

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  • 年度 1980
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