Apr 26, · This is a download of the NED 1/3rd-arc-second (approx. 10m). Elevations are in NAVD88 meters, with geographic (lat/long) horizontal coordinates. The National Elevation Dataset (NED) is a seamless raster product primarily derived from USGS . Alaska is NAVD The following products are available: NED 3 (1/9 arc-second approximately 3 meters) This is the highest resolution available. NED 10 (1/3 arc-second approximately 10 meters) NED at 10 meters is created using the same methods outlined above with . NED has a consistent projection (Geographic) and elevation units (meters). Nationwide coverage is available for data at a 1 arc second (30 meter) post spacing; there also is substantial coverage at 1/3 arc second (10 meter) post spacing. The horizontal datum is NAD83, except for AK, which is NAD
Ned 1/3 arc second
0801 Getting NED DEM from National Map, time: 12:52
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