GTOPO30
Digital elevation model / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about GTOPO30?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
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.
According to DTED and USGS DEM the absolute vertical accuracy of GTOP30 varies from ±30 meters.[2]