Tool NameGlobal OpenTopography
Tool ID4
Library IDio_webservices
Version1.0
Author(s)O.Conrad (c) 2025

Please cite SAGA whenever you use it for your publications:

doi:10.5194/gmd-8-1991-2015

Description

Download and optionally project global digital elevation model (DEM) data for the area of your interest provided by the OpenTopography project. The download needs a personal API key which can be obtained easily after login at the OpenTopography Data Portal.

Available DEM products are:

References

OpenTopography Homepage

OpenTopography Data Portal

Parameters

IDResolutionName
SRTMGL390mShuttle Radar Topography Mission 3"
SRTMGL130mShuttle Radar Topography Mission 1"
SRTMGL1_E30mShuttle Radar Topography Mission 1" Ellipsoidal
AW3D3030mALOS World 3D
AW3D30_E30mALOS World 3D Ellipsoidal
SRTM15Plus500mGlobal Bathymetry SRTM15+ V2.1
NASADEM30mNASA Global DEM
COP3030mCopernicus Global DSM
COP9090mCopernicus Global DSM
EU_DTM30mContinental Europe Digital Terrain Model
GEDI_L31000mGlobal Ecosystem Dynamics Investigation
GEBCOIceTopo500mGlobal Ice Bathymetry
GEBCOSubIceTopo500mGlobal Sub-Ice Bathymetry
CA_MRDEM_DSM30mMedium Resolution DSM of Canada
CA_MRDEM_DTM30mMedium Resolution DTM of Canada
ANADEM30mAgência Nacional de Águas DEM for South America
GEDTM3030mGlobal Ensemble Digital Terrain Model
NameTypeIdentifierDescriptionConstraints
Input
Gridgrid, inputGRID
Shapesshapes, inputSHAPES
Output
Griddata object Grid, output, optionalRESULT
Options
DEM TypechoiceDEMTYPEAvailable Choices:
[0] Shuttle Radar Topography Mission 3" (90m)
[1] Shuttle Radar Topography Mission 1" (30m)
[2] Shuttle Radar Topography Mission 1" Ellipsoidal (30m)
[3] ALOS World 3D (30m)
[4] ALOS World 3D Ellipsoidal (30m)
[5] Global Bathymetry SRTM15+ V2.1 (500m)
[6] NASA Global DEM (30m)
[7] Copernicus Global DSM (30m)
[8] Copernicus Global DSM (90m)
[9] Continental Europe Digital Terrain Model (30m)
[10] Global Ecosystem Dynamics Investigation (1000m)
[11] Global Ice Bathymetry (500m)
[12] Global Sub-Ice Bathymetry (500m)
[13] Medium Resolution DSM of Canada (30m)
[14] Medium Resolution DTM of Canada (30m)
[15] Agência Nacional de Águas DEM for South America (30m)
[16] Global Ensemble Digital Terrain Model (30m)
Default: 3
API KeytextAPI_KEY
ExtentchoiceEXTENTAvailable Choices:
[0] user defined
[1] shapes extent
[2] grid system extent
[3] grid system
Default: 0
Westfloating point numberXMINDefault: 538350
Eastfloating point numberXMAXDefault: 598020
Southfloating point numberYMINDefault: 5906910
Northfloating point numberYMAXDefault: 5965170
Bufferfloating point numberBUFFERadd buffer (map units) to extentMinimum: 0.000000
Default: 0
Take CellsizechoiceCELLSIZEDEFAvailable Choices:
[0] data type resolution
[1] user defined
Default: 0
Cellsizefloating point numberCELLSIZEMinimum: 0.000100
Default: 90
Coordinate System DefinitiontextCRS_STRINGSupported formats comprise PROJ and WKT strings, object codes (e.g. "EPSG:4326").