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The National Map seamless digital elevation model specifications

August 2, 2017

This specification documents the requirements and standards used to produce the seamless elevation layers for The National Map of the United States. Seamless elevation data are available for the conterminous United States, Hawaii, Alaska, and the U.S. territories, in three different resolutions—1/3-arc-second, 1-arc-second, and 2-arc-second. These specifications include requirements and standards information about source data requirements, spatial reference system, distribution tiling schemes, horizontal resolution, vertical accuracy, digital elevation model surface treatment, georeferencing, data source and tile dates, distribution and supporting file formats, void areas, metadata, spatial metadata, and quality assurance and control.

Publication Year 2017
Title The National Map seamless digital elevation model specifications
DOI 10.3133/tm11B9
Authors Christy-Ann M. Archuleta, Eric W. Constance, Samantha T. Arundel, Amanda J. Lowe, Kimberly S. Mantey, Lori A. Phillips
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Techniques and Methods
Series Number 11-B9
Index ID tm11B9
Record Source USGS Publications Warehouse
USGS Organization NGTOC Rolla