Shemya, Alaska 1 arc-second MHW Coastal Digital Elevation Model

NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated...美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration，NOAA）下属的国家地球物理数据中心（National Geophysical Data Center，NGDC）正为选定的美国沿海区域构建高分辨率数字高程模型（Digital Elevation Model，DEM）。此类集成的……