Fast Registration with Approval (Restrained)

1. Go to the ESA User Services Portal
2. Register or log in to EO Sign In
3. Submit the form for accessing the data
4. The request will be evaluated by ESA, which normally takes up to 2 days
5. Upon successful evaluation, you will receive a confirmation email
6. A second email will follow with details of where to download the data
7. Search and download the products from the dissemination service (via a map).

A large number of European cities are covered by this dataset; for each city you can find one or more Cartosat-1 ortho image products and one or more Euro-Maps 3D DSM tiles clipped to the extent of the ortho coverage.

The Euro-Maps 3D DSM is a homogeneous, 5 m spaced Digital Surface Model semi-automatically derived from 2.5 m Cartosat-1 in-flight stereo data with a vertical accuracy of 10 m. The very detailed and accurate representation of the surface is achieved by using a sophisticated and well adapted algorithm implemented on the basis of the Semi-Global Matching approach. The final product includes several pixel-based quality and traceability layers:

• The dsm layer (*_dsm.tif) contains the elevation heights as a geocoded raster file
• The source layer (*_src.tif) contains information about the data source for each height value/pixel
• The number layer (*_num.tif) contains for each height value/pixel the number of IRS-P5 Cartosat-1 stereo pairs used for the generation of the DEM
• The quality layer (*_qc.tif) is set to 1 for each height/pixel value derived from IRS-P5 Cartosat-1 data and which meets or exceeds the product specifications
• The accuracy vertical layer (*_acv.tif) contains the absolute vertical accuracy for each quality controlled height value/pixel.

The ortho image is a Panchromatic image at 2.5 m resolution. The following table defines the offered product types.