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National Elevation Dataset : ウィキペディア英語版 | National Elevation Dataset The National Elevation Dataset (NED) consists of high precision ground surface elevation data for the United States. It is maintained by the USGS and all the data are in public domain ==Source== The NED dataset is a compilation of data from a variety of existing high-precision datasets such as LiDAR data (see also National LIDAR Dataset - USA), contour maps, USGS DEM collection, SRTM and other sources〔National Elevation Dataset FAQ, Sources (). Retrieved on 2008-08-31.〕 which were reorganized and combined into a seamless dataset, designed to cover all the United States territory in its continuity.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「National Elevation Dataset」の詳細全文を読む
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