This map shows elevation products of the X-SAR/SRTM mission covering the globe between 60° North and 58° South with a resolution of approximately 25 x 25 m.
X-SAR/SRTM was an innovative way of collecting highly accurate topographic information using spaceborne radar instruments. Three mosaics have been generated:
the SRTM X-SAR Elevation, Hillshade and Error mosaic. The SRTM X-SAR Elevation Mosaic has been generated by grouping and mosaicking the original elevation files.
The SRTM X-SAR Hillshade Mosaic is a greyscale shaded relief based on the SRTM X-SAR Elevation Mosaic. Combined with the latter, it can be used to add a 3D effect and
enhance the visual resolution by pronouncing peaks and valleys. Finally, the SRTM X-SAR Error Mosaic is based on the height error map 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.
All these layers in combination with different basemap layers can be selected separately or in combination to create the overlays looked-for.