SRTM X-SAR - Elevation Error Mosaic - Global
The SRTM X-SAR Error Mosaic is based on the height error map (HEM, see SRTM PDF http://www.dlr.de/eoc/Portaldata/60/Resources/dokumente/7_sat_miss/SRTM-XSAR-DEM-DTED-1.1.pdf) and provides a local measure of the achieved accuracy. It is statistically determined from a neighborhood of image cells mainly considering the phase and baseline stability. Thus it describes the precision relative to the surrounding. The determination of the absolute accuracy requires the consideration of reference measures.
- Identification
- Distribution
- Quality
- Spatial rep.
- Ref. system
- Content
- Portrayal
- Metadata
- Md. constraints
- Md. maintenance
- Schema info
Identification
Data identification
Citation
- Date (Revision)
- 2011-01-31T00:22:00
- Identifier
- https://geoservice.dlr.de/catalogue/srv/metadata/6e136303-ff02-4ab4-b38a-db5ef64eea2c
- Presentation form
- Digital map
- Purpose
-
The purpose of the SRTM X-SAR Error Mosaic is to enable and facilitate access to and visualisation of DLR's SRTM data through standardized web services.
- Status
- Completed
- Maintenance and update frequency
- As needed
- Theme
-
-
DLR
-
Elevation
-
Space Shuttle
-
STS-99
-
SRTM
-
X-SAR
-
HEM
-
Global
-
inspireidentifiziert
-
-
GEMET - INSPIRE themes, version 1.0
-
-
Höhe
-
Legal constraints
- Access constraints
- Other restrictions
- Other constraints
- Es gelten keine Zugriffsbeschränkungen
Legal constraints
- 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
- Metadata language
- Deutsch
- Character set
- UTF8
- Topic category
-
- Elevation
Extent
- Begin date
- 2000-01-11T07:00:00
- End date
- 2000-01-22T08:00:00
Distribution
Distribution
- Distribution format
-
-
GeoTIFF
()
-
GeoTIFF
()
Digital transfer options
- OnLine resource
-
DLR SRTM Webpage
(
WWW:LINK-1.0-http--link
)
Webpage with links and mission descriptions
- OnLine resource
-
srtm_x-sar_hem_mosaic
(
OGC:WMS
)
WMS access to SRTM X-SAR Mosaic Error
- OnLine resource
-
srtm_x-sar_hem_mosaic
(
OGC:WCS
)
WCS access to SRTM X-SAR Mosaic Error
- 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)
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
-
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
Process step
- Description
-
Calculation of a list of files that are contained in each 30x30 degree tile of the world grid
- Date / Time
- 2010-01-30T18:00:00
Process step
- 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
- 2010-01-31T09:00:00
Process step
- 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
- 2010-01-01T18:00:00
Spatial rep.
Grid spatial representation
- Number of dimensions
- 3
Dimension
- Dimension name
- Row
- Dimension size
- 1598400
- Resolution
- 25 m
Dimension
- Dimension name
- Column
- Dimension size
- 510600
- Resolution
- 25 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
- 6e136303-ff02-4ab4-b38a-db5ef64eea2c XML
- Metadata language
- Deutsch
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2023-01-25T09:41:33
- Metadata standard name
-
ISO 19115-1:2014/19139
- Metadata standard version
-
1.0