TanDEM-X - PolarDEM - Antarctica, 90m

The TanDEM-X PolarDEM is a project developed by the German Remote Sensing Data Center (DFD) at the German Aerospace Center (DLR) within the activities of the TanDEM-X mission. It is a framework for the provision of derivatives of the global Digital Elevation Model (DEM) of the TanDEM-X mission for Polar Regions. The TanDEM-X PolarDEM 90m of Antarctica is a gap-free and edited version of the TanDEM-X 90m digital elevation model (DEM). The TanDEM-X PolarDEM 90m of Antarctica is provided in Antarctic Polar Stereographic projection (EPSG:3031) with a pixel spacing of 90 meters. The DEM elevation values represent ellipsoidal heights relative to the WGS84 ellipsoid. The majority of the data were acquired between April 2013 and October 2014. The TanDEM-X PolarDEM 90m of Antarctica is split into four tiles.

For more information concerning the TanDEM-X PolarDEM, the reader is referred to: https://www.dlr.de/eoc/en/desktopdefault.aspx/tabid-11882/20871_read-66374/

Citation proposal
Birgit Wessel (German Aerospace Center (DLR)) - Martin Huber (German Aerospace Center (DLR)). TanDEM-X - PolarDEM - Antarctica, 90m. http://gdk-inspire-1.ffm.gdi-de.org/geonetwork/srv/api/records/74539266-4a28-4148-b252-a9b3e4c8720b

INSPIRE
SDS

INSPIRE

Identification

File identifier: 74539266-4a28-4148-b252-a9b3e4c8720b XML

Hierarchy level: Dataset

Online resource

Protocol: WWW:DOWNLOAD-1.0-http--download

Protocol: WWW:LINK-1.0-http--link

Protocol: WWW:LINK-1.0-http--link

Protocol: WWW:LINK-1.0-http--link

Protocol: WWW:LINK-1.0-http--link

Protocol: WWW:LINK-1.0-http--link

Protocol: OGC:WMS

Protocol: OGC:WMS

Protocol: OGC:WMS

Protocol: OGC:WMS-http-get-capabilities

Resource identifier

code: https://geoservice.dlr.de/catalogue/srv/metadata/74539266-4a28-4148-b252-a9b3e4c8720b

Metadata language: German

Spatial representation type: Grid

Encoding

Format: GeoTIFF

Projection

Classification of data and services

Topic category

Elevation

Classification of data and services

Coupled resource

Classification of data and services

Coupled resource

Keywords

GEMET - INSPIRE themes, version 1.0 ( Theme )

Höhe

Spatial scope ( Theme )

Global

Other keywords

Keywords

TanDEM-X
Digital Elevation Model
TDX-1
TSX-1
SAR
X-Band
PolarDEM
Antarctica
inspireidentifiziert

Geographic coverage

Temporal reference

Temporal extent

Date ( Creation ): 2020-07-21T12:13:30

Quality and validity

Lineage

The PolarDEM is a derivative of the global TanDEM-X product provided by the TanDEM-X mission. The production steps comprised the following steps:

- gaps in the global TanDEM-X DEM are filled using additional TanDEM-X acquisitions where possible

- the editing process comprises a smoothing of noisy areas, the removal of voids and a replacement of frozen and partially open sea-ice areas with geoid undulations. A semi-automatic approach for coastline delineation was developed and applied to identify the water areas and assign homogeneous height values.

- the editing and gap filling was applied to the TanDEM-X DEM products in their original spacing in geographic coordinates. The TanDEM-X PolarDEM is finally transformed into a polar stereographic projection with a homogeneous metric spacing in northing and easting.

For more information concerning the TanDEM-X PolarDEM product, the reader is referred to

https://www.dlr.de/eoc/en/desktopdefault.aspx/tabid-11882/20871_read-66374/

and:

Wessel, B., Huber, M., Wohlfart, C., Bertram, A., Osterkamp, N., Marschalk, U., Gruber, A., Reuß, F., Abdullahi, S., Georg, I., and Roth, A.: TanDEM-X PolarDEM 90 m of Antarctica: Generation and error characterization, The Cryosphere Discuss. [preprint], https://doi.org/10.5194/tc-2021-19, in review, 2021.