Open main menu

GTOPO30 is a digital elevation model for the world, developed by United States Geological Survey (USGS). It has a 30-arc second resolution (approximately 1 km), [1] and is split into 33 tiles stored in the USGS DEM file format.

Contents

AccuracyEdit

According to DTED and USGS DEM the absolute vertical accuracy of GTOP30 varies from ±30 meters.[2]

See alsoEdit

ReferencesEdit

  1. ^ http://eros.usgs.gov/#/Find_Data/Products_and_Data_Available/gtopo30_info
  2. ^ "Accuracy". Retrieved July 26, 2017.

External linksEdit