SRTM X-SAR - Elevation Mosaic - Global
Metadata
Language
ger
CharacterSet
utf8
HierarchyLevelName
dataset
Contact
OrganisationName
German Aerospace Center (DLR)
Address
ElectronicMailAddress
geoservice@dlr.de
RoleCode
pointOfContact
DateStamp
2024-06-20T14:12:08
MetadataStandardName
ISO 19115-1:2014/19139
MetadataStandardVersion
1.0
SpatialRepresentationInfo
NumberOfDimensions
3
DimensionName
DimensionNameTypeCode
row
DimensionSize
1598400
Resolution
Measure
25
Unit
m
DimensionName
DimensionNameTypeCode
column
DimensionSize
510600
Resolution
Measure
25
Unit
m
DimensionName
DimensionNameTypeCode
vertical
DimensionSize
1
Resolution
Measure
1
Unit
m
CellGeometryCode
area
TransformationParameterAvailability
false
ReferenceSystemInfo
IdentificationInfo
Date
DateTime
2010-10-11T17:00:00
DateTypeCode
creation
Identifier
PresentationForm
PresentationFormCode
mapDigital
Abstract
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.
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.
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.
ProgressCode
completed
PointOfContact
OrganisationName
German Aerospace Center (DLR)
ContactInfo
ElectronicMailAddress
geoservice@dlr.de
Role
RoleCode
pointOfContact
MaintenanceAndUpdateFrequency
MaintenanceFrequencyCode
notPlanned
GraphicOverview
GraphicOverview
DescriptiveKeywords
Keyword
DLR
Keyword
Elevation
Keyword
Space Shuttle
Keyword
STS-99
Keyword
SRTM
Keyword
X-SAR
Keyword
Global
Keyword
inspireidentifiziert
DescriptiveKeywords
Keyword
Höhe
ThesaurusName
Title
GEMET - INSPIRE themes, version 1.0
Date
2008-06-01
DescriptiveKeywords
ThesaurusName
Date
2024-05-23
AccessConstraints
RestrictionCode
otherRestrictions
UseConstraints
RestrictionCode
otherRestrictions
OtherConstraints
UseLimitation
Nutzungseinschränkungen: Das DLR ist nicht haftbar für Schäden, die sich aus der Nutzung ergeben. / Use Limitations: DLR not liable for damage resulting from use.
SpatialRepresentationTypeCode
grid
EquivalentScale
Integer
50000
LanguageCode
ger
CharacterSetCode
utf8
TopicCategoryCode
elevation
Extent
GeographicElement
North
60.50
West
-178.99
179.75
East
-54.49
South
TemporalElement
SupplementalInformation
Units are meters. Heights are stored in 1 meter levels within the WGS84 vertical datum. The NoData value of this dataset is -32767.
DistributionInfo
DistributionFormat
Name
GeoTIFF
TransferOptions
OnLine
Protocol
WWW:LINK-1.0-http--link
Name
DLR SRTM Webpage
Description
Webpage with links and mission descriptions
OnlineFunctionCode
information
OnLine
Protocol
OGC:WMS
Name
srtm_x-sar_dem_mosaic
Description
WMS access to SRTM X-SAR Elevation Mosaic
OnlineFunctionCode
download
OnLine
Protocol
OGC:WCS
Name
srtm_x-sar_dem_mosaic
Description
WCS access to SRTM X-SAR Elevation Mosaic
OnlineFunctionCode
download
OnLine
Protocol
OGC:WMS-http-get-capabilities
OnlineFunctionCode
information
OnLine
Protocol
OGC:WCS-http-get-capabilities
OnlineFunctionCode
information
OnLine
Protocol
WWW:LINK-1.0-http--link
Name
EOC Geoservice Map Context
Description
EOC Geoservice Map Context (srtm:x-sar)
OnlineFunctionCode
information
DataQualityInfo
Level
ScopeCode
dataset
Report
MeasureIdentification
Code
Conformity_001
CodeSpace
INSPIRE
Result
Title
VERORDNUNG (EG) Nr. 1089/2010 DER KOMMISSION vom 23. November 2010 zur Durchführung der Richtlinie 2007/2/EG des Europäischen Parlaments und des Rates hinsichtlich der Interoperabilität von Geodatensätzen und -diensten
Explanation
See the referenced specification.
Boolean
true
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
Horizontal accuracy (relative): ±15m 90% circular error
Vertical accuracy (absolute): ±16m 90% linear error
Vertical accuracy (relative): ±6m 90% linear error
processStep
Description
Calculation of a list of files that are contained in each 30x30 degree tile of the world grid
DateTime
2010-07-30T18:00:00
processStep
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
DateTime
2010-07-31T09:00:00
processStep
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
DateTime
2010-08-01T18:00:00