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dem數(shù)據(jù)獲取方法-資料下載頁

2025-07-25 15:12本頁面
  

【正文】 1892 E100N40 10 40 100 140 40 7213 692 910 4) GTOPO30數(shù)據(jù)文件解釋 (以E100N40為例) FileName Contents digital elevation model (BIP/BIL/BSQ) header file for DEM world file statistics file projection information file shaded relief image source map header file for source map5) SRTM DEM數(shù)據(jù)的處理與拼接 (ASCII DEM情況下, 投影參數(shù)手工定義) Arc: projectdefine grid n040e116 Project: projection geographic Project: datum wgs84 Project: zunits meters Project: units dd Project: spheroid wgs84 Project: parameters Arc: DEM Mosaic Arc: grid Grid: mosaic Usage: (*) MOSAIC (grid, ..., grid) Grid: bjdem = mosaic(0N39E116,N039E117,N040E116,N040E117) Mosaicing grids ... 100% Set Shadow/Water to NULL (for easy display only) Grid: bjdemp = setnull (bjdem 100, bjdem) Running... 100% Grid: ASTER DEM Terra ASTER Level 3D 15 meter resolution newly launched satellite Research Opportunity for evaluation
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