The following TanDEM-X Information Layers are included in the map:
- TDM30 Edited Digital Elevation Model (EDEM): The EDEM elevation values, derived from the TanDEM-X mission and edited in order to remove voids and to flatten water, are given in ellipsoidal heights relative to the WGS84 and EGM08. Here the EGM08 vertical datum displayed with colors.
- TDM30 Hill Shade Display (HSD): The hill shade display is a color-coded 3D representation of the terrain surface, with the sun's relative position taken into account for shading the image.
- TDM30 Editing Mask (EDM): The EDM is color-coded and shows where the DEM has been modified in order to fill gaps and flatten the water areas. The value for each pixel in the editing mask identifies a combination of the used edition algorithm and the external reference DEM, in the case of gaps filled with an external reference DEM.
- TDM30 Height Error Map (HEM): The HEM is associated to the pure InSAR derived DEM height combination and shows estimated height error standard deviation for unedited DEM areas. Here displayed with colors.
- TDM30 Land Cover Map (LCM): The LCM is color-coded and shows pixel-wise land cover classification. The first band includes 3 LC classes: forest, land and water. In the second band, information about the reliability of the water LC class is provided, associated to permanent water and temporary water. Only the first band is displayed.
- TDM30 Hill Shade Combined (HSC): Black and white hill shade combining slope and oblique shading. Is not part from the downloadable product and displayed only for mapping purposes, standalone or in combination with the colored EDEM.
- TDM30 Hill Shade Multidirectional (HSM): Black and white hill shade combining illuminated from 225 deg, 270 deg, 315 deg, and 360 deg azimuth. Is not part from the downloadable product and displayed only for mapping purposes, standalone or in combination with the colored EDEM.
Further information is provided in the TanDEM-X 30m Edited DEM Data Guide.
C. González, M. Bachmann, J.L. Bueso-Bello, P. Rizzoli, M. Zink. A Fully Automatic Algorithm for Editing the TanDEM-X Global DEM. Remote Sensing. 2020; 12(23):3961.
Show PublicationJ.L. Bueso-Bello, M. Martone, C. González, F. Sica, P. Valdo, P. Posovszky, A. Pulella, P. Rizzoli (2021): The Global Water Body Layer from TanDEM-X Interferometric SAR Data. Remote Sensing 13 (24):5069.
Show PublicationMartone, M., Rizzoli, R., Wecklich, C., González, C., Bueso-Bello, J.L., Valdo, P., Schulze, D., Zink, M., Krieger, G., Moreira, A., 2018. The Global Forest/Non-Forest Map from TanDEM-X Interferometric SAR Data. Remote Sensing of Environment, vol. 205, pp. 352-373.
Show PublicationEOC Catalogue
OGC CSW server part of the EOC Geoservice
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TanDEM-X - Edited Digital Elevation Model (EDEM) - Global, 30m
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EOC TanDEM-X Map Service
This Web Mapping Service provides access to geospatial TanDEM-X map products within the Earth Observation Center (EOC).
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Layers
The EDM is color-coded and shows where the DEM has been modified in order to fill gaps and flatten the water areas. The value for each pixel in the editing mask identifies a combination of the used edition algorithm and the external reference DEM, in the case of gaps filled with an external reference DEM.
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The EDEM elevation values, derived from the TanDEM-X mission and edited in order to remove voids and to flatten water, are given in ellipsoidal heights relative to the WGS84 ellipsoid in the WGS84-G1150 datum and WGS84-EGM08. Note that the abrreviation (EGM/W84) is related to the vertical datum.
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The HEM is the standard deviation of the height error for each unedited pixel, associated to the pure InSAR derived DEM height combination noise.
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The hillshade generated from 16-bit EGM elevation values using a combination of slope and oblique shading.
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The hill shade display is a color-coded 3D representation of the terrain surface, with the sun's relative position taken into account for shading the image.
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The hill shade generated from 16-bit EGM elevation values using a combination of hillshading illuminated from 225 deg, 270 deg, 315 deg, and 360 deg azimuth.
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The LCM is color-coded and shows pixel-wise land cover classification. The first band includes 3 LC classes: forest, land and water. In the second band, information about the reliability of the water LC class is provided, associated to permanent water and temporary water.
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EOC TanDEM-X Map Service
This Web Mapping Service provides access to geospatial TanDEM-X map products within the Earth Observation Center (EOC).
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Layers
The EDM is color-coded and shows where the DEM has been modified in order to fill gaps and flatten the water areas. The value for each pixel in the editing mask identifies a combination of the used edition algorithm and the external reference DEM, in the case of gaps filled with an external reference DEM.
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The EDEM elevation values, derived from the TanDEM-X mission and edited in order to remove voids and to flatten water, are given in ellipsoidal heights relative to the WGS84 ellipsoid in the WGS84-G1150 datum and WGS84-EGM08. Note that the abrreviation (EGM/W84) is related to the vertical datum.
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The HEM is the standard deviation of the height error for each unedited pixel, associated to the pure InSAR derived DEM height combination noise.
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The hillshade generated from 16-bit EGM elevation values using a combination of slope and oblique shading.
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The hill shade display is a color-coded 3D representation of the terrain surface, with the sun's relative position taken into account for shading the image.
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The hill shade generated from 16-bit EGM elevation values using a combination of hillshading illuminated from 225 deg, 270 deg, 315 deg, and 360 deg azimuth.
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The LCM is color-coded and shows pixel-wise land cover classification. The first band includes 3 LC classes: forest, land and water. In the second band, information about the reliability of the water LC class is provided, associated to permanent water and temporary water.
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EOC Tile Cache
The EOC Tile Cache supports multiple cache protocols to access different datasets originated from DLR's Earth Observation Center (EOC).
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TDM30 Editing Mask (EDM)
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TDM30 Edited Digital Elevation Model (EDEM) EGM
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TDM30 Height Error Map (HEM)
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TDM30 Hill Shade Combined (HSC)
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TDM30 Hill Shade Display (HSD)
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TDM30 Hill Shade Multidirectional (HSM)
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TDM30 Land Cover Map (LCM)
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Further Datasets from Datagroup TanDEM-X
The objective of the TanDEM-X mission (TerraSAR-X add-on for Digital Elevation Measurement) is to produce a highly accurate, three-dimensional image of our Earth with uniform quality and unprecedented accuracy.
Further Datasets of Topic Topography
Topographic data data describing the shape and elevation of the Earth’s surface, such as terrain height, slope, and landforms.
