TanDEM-X - Edited Digital Elevation Model (EDEM) - Global, 30m

TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurements) is an Earth observation radar mission that consists of a SAR interferometer built by two almost identical satellites flying in close formation. With a typical separation between the satellites of 120 m to 500 m a global Digital Elevation Model (DEM) has been generated.

The TanDEM-X 30m EDEM is a product variant of the global Digital Elevation Model (DEM) acquired in the frame of the German TanDEM-X mission between 2010 and 2014, and has a reduced pixel spacing of 1 arcseconds (arsec), which corresponds to 30m at the equator. An automated edition was developed by the Microwaves and Radar Institute at the German Aerospace Center (DLR) to have a full and clean coverage of all Earth’s landmasses from pole to pole.

Identification

Data identification

Citation

Date (Creation)
2023-11-17T12:00:00
Citation identifier
https://geoservice.dlr.de/catalogue/srv/metadata/4ee664df-ceb9-4d59-bc6e-4df4da54b53d
Presentation form
Digital map
Purpose

The TanDEM-X 30m Edited DEM has been edited in order to have a full coverage.
Status
Completed
Point of contact
  German Aerospace Center (DLR)
Point of contact
  German Aerospace Center (DLR) - ( )
Maintenance and update frequency
As needed
Keywords

  • DLR

  • TDM

  • HR

  • TanDEM-X

  • EDEM

  • DEM

  • Digital Elevation Model

  • TDX-1

  • TSX-1

  • TDM 30m EDEM

  • Edited DEM

  • Global

GEMET - INSPIRE themes, version 1.0

  • Elevation
Spatial scope
Use limitation

Nutzungseinschränkungen: Das DLR ist nicht haftbar für Schäden, die sich aus der Nutzung ergeben. / Use Limitations: DLR not liable for damage resulting from use.

Legal constraints

Access constraints
Other restrictions
Other constraints
Öffentlicher Zugriff beschränkt entsprechend Artikel 13(1)(e) der INSPIRE-Richtlinie: e) aufgrund nachteiliger Auswirkungen auf die Rechte des geistigen Eigentums

Legal constraints

Use constraints
Other restrictions
Other constraints

Nutzungsbedingungen: https://geoservice.dlr.de/resources/licenses/tdm30-edited/License_for_the_Utilization_of_TanDEM-X_30m-EDEM_DCM_for_Scientific_Use.pdf Terms of Use: https://geoservice.dlr.de/resources/licenses/tdm30-edited/License_for_the_Utilization_of_TanDEM-X_30m-EDEM_DCM_for_Scientific_Use.pdf

Spatial representation type
Grid
Denominator
60000
Language
English
Character set
UTF8
Topic category
  • Elevation

Extent

N
S
E
W
thumbnail


Begin date
2010-12-12T04:04:33
End date
2015-01-16T00:37:12
 

Distribution

Distribution

Distribution format
  • GeoTIFF ()

Digital transfer options

OnLine resource
TanDEM-X DEM access - non-scientific users ( WWW:LINK-1.0-http--link )

Webpage for accessing/ordering TanDEM-X elevation models for non-scientific users.

OnLine resource
TanDEM-X DEM access - scientific users ( WWW:LINK-1.0-http--link )

Webpage with links and description for accessing TanDEM-X elevation models for scientific users.

OnLine resource
EOC Geoservice Map Context ( WWW:LINK-1.0-http--link )

EOC Geoservice Map Context (tdm:edem30)

OnLine resource
EOC Download Service ( WWW:LINK-1.0-http--link )

TanDEM-X Edited Digital Elevation Model (EDEM) - EOC Download Service

OnLine resource
TDM30_EDEM_EGM ( OGC:WMS )

WMS Access: TDM30 Edited Digital Elevation Model (EDEM)

OnLine resource
TDM30_EDEM_HSD ( OGC:WMS )

WMS Access: TDM30 Hill Shade Display (HSD)

OnLine resource
TDM30_EDEM_EDM ( OGC:WMS )

WMS Access: TDM30 Editing Mask (EDM)

OnLine resource
TDM30_EDEM_HEM ( OGC:WMS )

WMS Access: TDM30 Height Error Map (HEM)

OnLine resource
TDM30_EDEM_LCM ( OGC:WMS )

WMS Access: TDM30 Land Cover Map (LCM)

OnLine resource
TDM30_EDEM_HSC ( OGC:WMS )

WMS Access: TDM30 Hill Shade Combined (HSC)

OnLine resource
TDM30_EDEM_HSM ( OGC:WMS )

WMS Access: TDM30 Hill Shade Multidirectional (HSM)

OnLine resource
TDM30 - EOC Geoservice Data Guide ( WWW:LINK-1.0-http--link )

EOC Geoservice Data Guide

 

Quality

Data quality

Hierarchy level
Dataset

Domain consistency

Measure identification
INSPIRE / Conformity_001

Conformance result

Citation

Date (Publication)
2010-12-08
Explanation

See the referenced specification
Pass
Yes

Lineage

Statement

TDM 30 EDEM has been edited using the following DEMs for filling gaps are AW3D30, Nasadem, Lidar, REMA DEM and Arctic DEM.
Description

Data:

TanDEM-X DEM Product in 30m is considered as base Product. A new Water Bodies Layer (WBL) has been calculated considering the coherence of single scenes and a watershed algorithm. The WBL is used to separete the areas to be flattened (water) and filled (voids), which are edited with different technics and saved pixelwise in the Editing Mask (EDM). The editing process has been performed fully automatically, besides the center of Antarctica < - 88°, which has been edited in polar coordinates.


Quality Assurance:

The quality of the edited areas depends strongly from the used references, and the complexity of the waterbodies.
 

Spatial rep.

Grid spatial representation

Number of dimensions
3

Dimension

Dimension name
Column
Dimension size
1296000
Resolution
30  m

Dimension

Dimension name
Row
Dimension size
648000
Resolution
30  m

Dimension

Dimension name
Vertical
Dimension size
1
Resolution
1  m
Cell geometry
Area
Transformation parameter availability
No
 

Ref. system

Unique resource identifier
EPSG:4326
 

Metadata

Metadata

File identifier
4ee664df-ceb9-4d59-bc6e-4df4da54b53d XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2024-06-27T14:44:46
Metadata standard name

ISO 19115:2014/19139
Metadata standard version

1.0
Point of contact
  German Aerospace Center (DLR)
 
 

Overviews

overview
large_thumbnail
overview
thumbnail

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
Elevation

Provided by

Access to the portal

Associated resources

Not available