Back to data list

Data details

Name GTOPO30 DEM
Note Global 30 Arc-Second Elevation (GTOPO30) https://lta.cr.usgs.gov/GTOPO30
Update Frequency Irregular
Area Global
Temporal -
Timeliness Latest version available
Data Policy Freely accessible
Data type Geospatial data
Copernicus service product
Data format Raster dataset
Quality Control Procedure TBD
Dissemination View and Download Service
Inspire themes

Annex II: Elevation
Geographical Coverage

Multiple Countries /Not a specific country
Status -
State Ready
Created on April 26, 2018, 5:32 p.m.
Last modified on Dec. 20, 2021, 1:43 p.m.

Data Providers

Data provider Role Is network Created on Last modified on
University of Maryland (GLAD lab)/Google/USGS/NASA Distributor April 26, 2018, 5:32 p.m. Dec. 20, 2021, 1:43 p.m.

Requirements

Requirement Level of compliace Note Information costs Handling costs Created on Last modified on
Digital Elevation Model (global) Partially Update Frequency: Irregularly updated - last update 1996 April 26, 2018, 5:32 p.m. Dec. 20, 2021, 1:43 p.m.
Digital Elevation Model None Global 30 Arc-Second Elevation (GTOPO30) is a global Digital Elevation Model (DEM) that was completed in late 1996, it has a resolution of 1km. Its Digital Terrain Elevation Data (DTED) and United States Geological Survey (USGS) DEMs, which cover 56.7% of the total dataset, have a vertical accuracy of +/- 30 meters linear error at the 90 percent confidence level (LE90) with a Root Mean Square Error (RMSE) of 18 m. Both the coarse resolution and low accuracy do not fulfill the requirements of the EU-GMS. April 26, 2018, 5:32 p.m. Dec. 20, 2021, 1:43 p.m.