SRTM X-SAR - Elevation Mosaic - Global

The SRTM X-SAR Elevation Mosaic is an aggregation of DLR's SRTM X-SAR DTED files.


The DTED Level-2 files have been generated from Synthetic Aperture Radar (SAR) data acquired by the German-Italian X-band interferometric SAR system during the Shuttle Radar Topography Mission (SRTM) between February 11 and 22, 2000. The X-band system was flown and operated onboard the Space Shuttle Endeavor, along with a NASA C-Band SAR system. The SRTM project page at DLR provides additional information on the SRTM X-band mission ( http://www.dlr.de/eoc/en/desktopdefault.aspx/tabid-5515/9214_read-17716/ ). Further details on the mission in general, the technology, accuracies, and applications are available in http://www2.jpl.nasa.gov/srtm/SRTM_paper.pdf .


The original DTED files have been grouped and mosaicked into 30 x 30 degree tiles. Six out of the total of 48 tiles were empty since they do not contain any DTED files. The resulting 42 tiles are stored as uncompressed GeoTIFF files. The files have been supplemented with nine cubic convolution resampled overviews for fast web delivery.

Simple

Date (Creation)
2010-10-11T17:00:00
Citation identifier
https://geoservice.dlr.de/catalogue/srv/metadata/c03846b9-b94b-4dc4-a989-ee58bf7afb5d
Presentation form
Digital map
Purpose

The purpose of the SRTM X-SAR Elevation Mosaic is to enable and facilitate access to and visualisation of DLR's SRTM data through standardized web services.
Status
Completed
Point of contact
  German Aerospace Center (DLR)
Maintenance and update frequency
Not planned
Theme

  • DLR

  • Elevation

  • Space Shuttle

  • STS-99

  • SRTM

  • X-SAR

  • Global

  • inspireidentifiziert

GEMET - INSPIRE themes, version 1.0

  • Höhe
Access constraints
Other restrictions
Other constraints
Es gelten keine Zugriffsbeschränkungen
Use constraints
Other restrictions
Other constraints

Nutzungsbedingungen: https://geoservice.dlr.de/resources/licenses/srtm_xsar/DLR_SRTM_XSAR_ReadMe.pdf / Terms of use: https://geoservice.dlr.de/resources/licenses/srtm_xsar/DLR_SRTM_XSAR_ReadMe.pdf

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.
Spatial representation type
Grid
Denominator
50000
Language
Deutsch
Character set
UTF8
Topic category
  • Elevation
N
S
E
W
thumbnail


Begin date
2000-01-11T00:00:00
End date
2000-01-22T23:59:00
Supplemental Information

Units are meters. Heights are stored in 1 meter levels within the WGS84 vertical datum. The NoData value of this dataset is -32767.
Unique resource identifier
EPSG:4326
Number of dimensions
3
Dimension name
Row
Dimension size
1598400
Resolution
25  m
Dimension name
Column
Dimension size
510600
Resolution
25  m
Dimension name
Vertical
Dimension size
1
Resolution
1  m
Cell geometry
Area
Transformation parameter availability
No
Distribution format
  • GeoTIFF ()

OnLine resource
DLR SRTM Webpage ( WWW:LINK-1.0-http--link )

Webpage with links and mission descriptions

OnLine resource
srtm_x-sar_dem_mosaic ( OGC:WMS )

WMS access to SRTM X-SAR Elevation Mosaic

OnLine resource
srtm_x-sar_dem_mosaic ( OGC:WCS )

WCS access to SRTM X-SAR Elevation Mosaic

OnLine resource
https://geoservice.dlr.de/eoc/elevation/wms?SERVICE=WMS&REQUEST=GetCapabilities ( OGC:WMS-http-get-capabilities )
OnLine resource
https://geoservice.dlr.de/eoc/elevation/wcs?SERVICE=WCS&REQUEST=GetCapabilities ( OGC:WCS-http-get-capabilities )
OnLine resource
EOC Geoservice Map Context ( WWW:LINK-1.0-http--link )

EOC Geoservice Map Context (srtm:x-sar)

Hierarchy level
Dataset

Domain consistency

Measure identification
INSPIRE / Conformity_001

Conformance result

Date (Publication)
2010-12-08
Explanation

See the referenced specification.
Pass
Yes
Statement

Horizontal accuracy (absolute): ±20m 90% circular error

Horizontal accuracy (relative): ±15m 90% circular error

Vertical accuracy (absolute): ±16m 90% linear error

Vertical accuracy (relative): ±6m 90% linear error
Description

Calculation of a list of files that are contained in each 30x30 degree tile of the world grid
Date / Time
2010-07-30T18:00:00
Description

Merging the files from the list into one GeoTIFF file. The following GDAL v1.7.2 command was used: gdal_merge.py -of GTiff -co TFW=YES -co TILED=YES -init -32767 -n -32767
Date / Time
2010-07-31T09:00:00
Description

Calculation of the overviews for each GeoTIFF tile. The following GDAL v1.7.2 command was used: gdaladdo -r cubic GEOTIFF_FILE 4 8 16 32 64 128 256 512 1024
Date / Time
2010-08-01T18:00:00
File identifier
c03846b9-b94b-4dc4-a989-ee58bf7afb5d XML
Metadata language
Deutsch
Character set
UTF8
Hierarchy level
Dataset
Hierarchy level name

dataset
Date stamp
2024-06-20T14:12:08
Metadata standard name

ISO 19115-1:2014/19139
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

DLR Elevation Global SRTM STS-99 Space Shuttle X-SAR inspireidentifiziert
GEMET - INSPIRE themes, version 1.0
Höhe

Provided by

Access to the portal

Associated resources

Not available