We are trying process S1 data (batch processing using graph ). It has to do terrain correction also. It is running fine if the system is connected to internet and the option for DEM is selected as auto download. But we want to run it in a system which is not connected to internet. When we tried with external DEM, the process completes, but it is not doing terrain correction and the size of the image is increases 4 times. Kindly provide solution to overcome the issue.
After adding the images and graph, we have manually selected the external DEM option and added the external DEM in the terrain correction tab in the GUI. The external DEM was the mosaic of all the DEM SRTMarc3sec grid covering entire region of interest.
Thanks for the reply. The DEM is in WGS84(it is he mosaic of SRTM tiles of 3 Arc Sec taken from the auto download folder of snap ie. .snap\auxdata\dem\SRTM 3Sec). I am uploading the graph xml . Kindly change the external DEM path.
Kindly provide a solution to run it in offline mode. Also how can we run the graph directly from command line by passing input folder path and output directory?