Datové sady / USGS Small-scale Dataset - 100-Meter Resolution Elevation of Alaska 201212 TIFF


USGS Small-scale Dataset - 100-Meter Resolution Elevation of Alaska 201212 TIFF

Vydavatel U.S. Geological Survey, Department of the Interior

Datum vydání před téměř 10 roky

US
beta

Shrnutí

Co poskytovatel nabízí?
ongoing release of a series of related datasets

Databázová licence
Nevztahuje se

Licence na obsah
Creative Commons CCZero

Způsob ověření
ověřený automaticky

Popis

This map layer contains elevation data for Alaska, in an Albers Equal-Area Conic projection. The elevation data were derived from National Elevation Dataset (NED) data, http://ned.usgs.gov, and show the terrain at a resolution of 100 meters. The NED is a raster product assembled by the U.S. Geological Survey, designed to provide national elevation data in a seamless form with a consistent datum, elevation unit, and projection. Data corrections made in the NED assembly process minimize artifacts, permit edge matching, and fill sliver areas of missing data. The NED is updated on a bi-monthly basis. This data set was derived from NED data released in December, 2010, http://ned.usgs.gov/downloads/documents/NED_Release_Notes_Dec10.pdf.