Tool NameSRTM (NASA)
Tool ID2
Library IDio_webservices
Version1.0
Author(s)O.Conrad (c) 2026

Description

This tool provides easy-to-use access to the 'NASA Shuttle Radar Topography Mission Global 1 arc second' elevation data (about 30 meter resolution). It uses a local database in the chosen directory which provides the original tiles. If the tiles covering the requested area are not found in this directory the tool tries to download these from the NASA Earthdata server.
Note that a valid login for the NASA Earthdata server has to provided for successful downloads, and that an appropriate citation is expected for publications based on these data (NASA JPL 2013)!

References

NASA JPL (2013): NASA Shuttle Radar Topography Mission Global 1 arc second. [Data set]. NASA Land Processes Distributed Active Archive Center. doi:10.5067/MEASURES/SRTM/SRTMGL1.003

NASA Shuttle Radar Topography Mission Global 1 arc second V003

User's Guide

Parameters

NameTypeIdentifierDescriptionConstraints
Input
Gridgrid, inputGRID
Shapesshapes, inputSHAPES
Output
Griddata object Grid, output, optionalRESULT
Options
UsertextUSERNAMEDefault: user
PasswordtextPASSWORD
Local Tiles Directoryfile pathTILESDownload location for tiles. If requested tile is already present download will be skipped.
Delete Archive FilesbooleanDELARCHIVEDo not keep archive files after downloadDefault: 1
ExtentchoiceEXTENTAvailable Choices:
[0] user defined
[1] shapes extent
[2] grid system extent
[3] grid system
Default: 0
Westfloating point numberXMINDefault: 270360.000000
Eastfloating point numberXMAXDefault: 931320.000000
Southfloating point numberYMINDefault: 5225850.000000
Northfloating point numberYMAXDefault: 6111540.000000
Bufferfloating point numberBUFFERadd buffer (map units) to extentMinimum: 0.000000
Default: 0.000000
Cellsizefloating point numberCELLSIZEMinimum: 0.000100
Default: 90.000000
Coordinate System DefinitiontextCRS_STRINGSupported formats comprise PROJ and WKT strings, object codes (e.g. "EPSG:4326").