Personal tools

Global 30-Arc-Second Elevation Data (GTOPO30)

Method of AccessDVD [200]
Index Page web link
Date1996
Contactgis.maps@utoronto.ca
Data CreatorUSGS
DescriptionGTOPO30 is a global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer). GTOPO30 was derived from several raster and vector sources of topographic information. For easier distribution, GTOPO30 has been divided into tiles which can be selected from the map shown above. Detailed information on the characteristics of GTOPO30 including the data distribution format, the data sources, production methods, accuracy, and hints for users, is found in the GTOPO30 README file. See linked index for help in choosing an area.
Type of Data RASTER
Permission Required to Use? None
Acknowledgement Required to Use? Citation
Price for Use? None
Who Can Use Data? PUBLIC
Entry Date 10-JUN-05
Subjects / DIGITAL ELEVATION MODEL / ELEVATION / DATA SOURCES
Geography Covered / WORLD (INCLUSIVE)
Formats / GEODATABASE
Edit


For further information and help, click on one of the links above, call us at 416.978.5589, or contact us. Our address is 130 St. George street, Toronto, ON M5S 1A5