Import Data - SAR Spaceborne - ENVISAT-ASAR

 

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Import Data - SAR Spaceborne - ENVISAT-ASAR

 

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Purpose

 

Standard products are imported into the SARscape Data Format for further processing.

 

Technical Note

 

 

DORIS (this file is mandatory when importing WSS data).

DORIS (Doppler Orbitography and Radiopositioning Integrated by Satellite) data provide precise orbital information for ENVISAT ASAR. Two versions of DORIS data are available:

 

-The VOR (Verified ORbits) are the most precise ones, but they are made available not earlier than one month after the actual satellite acquisition.

-The POR (Precise ORbits) are slightly less precise than the VOR, but they are made available together with the ASAR data.

Access to DORIS data is provided by the ESA Earth Observation Help Desk.

 

If the relevant DORIS files are already stored in an existing folder, which has been defined as DORIS Directory, they do not have to be inputted in the import processing panel since they are automatically retrieved by the program.

 

XCA

Auxiliary ASAR file containing external calibration data. This file is delivered with the SARscape installation package and it is read in a fully automatic way, hence typically there is not need to enter it as input. However, in case the most recent XCA files are not included in the installation package, a warning message will appear advising to download this file from the relevant ESA web site. Once the missing XCA file(s) have been downloaded, the specific ASAR acquisitions must be re-imported by either inputting the newly downloaded files (XCA input list) or by copying these files under the ".../SARMAP SA/SARscape X.X.XXX/description_files" directory.

 

Supported Products

 

ASA WSSScanSAR Single Look Complex.

 

Input Files

 

Input File

Input file name of the original data. This file is mandatory.

 

Input Orbit File

Input file name of the original DORIS data. This file is mandatory.

 

Output Files

 

Output file

Output file name of the imported data. This file is mandatory.

 

Root name of the imported file(s) and associated header files (.sml, .hdr). Specific file suffixes are added according to the data type.

 

Details specific to the Units of Measure and Nomenclature of the output products can be found in the Data Format section.

 

General Functions

 

Exec

The processing step is executed.

 

Store Batch        

The processing step is stored in the batch list. The Batch Browser button allows to load the batch processing list.

 

Close        

The window will be closed.

 

Help

Specific help document section.

 

 

Specific Function(s)

 

None.

 

References

 

None.