problem in stitching using dem.py

[priyanka-duIn]

Hello all
I am having problem using dem.py. I am trying to stitch the DEM but constantly getting an error.

dem.py -a stitch -b 31 32 78 79 -r -s 1 -c

Using default ISCE Path: /home/miniforge3/envs/isce2/lib/python3.11/site-packages/isce
curl -n -L -c $HOME/.earthdatacookie -b $HOME/.earthdatacookie -k -f -O http://step.esa.int/auxdata/dem/SRTMGL1/N31E078.SRTMGL1.hgt.zip
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0Warning: Failed to open the file N31E078.SRTMGL1.hgt.zip: Permission denied
0 17.2M 0 13418 0 0 21521 0 0:14:01 --:--:-- 0:14:01 21503
curl: (23) Failure writing output to destination
2025-01-06 16:12:00,506 - isce.contrib.demUtils.DemStitcher - WARNING - There was a problem in retrieving the file http://step.esa.int/auxdata/dem/SRTMGL1/N31E078.SRTMGL1.hgt.zip. Exception
Could not create a stitched DEM. Some tiles are missing
N31E078.SRTMGL1.hgt.zip = failed

I stitched the DEM using the same command earlier and could able to stitch but now it's not working. I have also tried -u http://step.esa.int/auxdata/dem/SRTMGL1/ and -n -w option but still same warning and error!.

Could anyone help me in this regard?

Thank you!

[Karthi-Wolf]

conda activate isce2

cd /home/....../DEM

export PATH=$PATH:/home/incois/miniconda3/envs/isce2/lib/python3.9/site-packages/isce/applications

cd /home/......./DEM

unzip '*.zip'

gdal_merge.py -o stitched_dem.tif N19E084.hgt N19E085.hgt N20E084.hgt N20E085.hgt
I have tried and it worked . let me know.

[priyanka-duIn]

Hi
It's not working for me.
I am getting the following error

Using default ISCE Path: /home/..........isce2/lib/python3.11/site-packages/isce
curl -n -L -c $HOME/.earthdatacookie -b $HOME/.earthdatacookie -k -f -O https://e4ftl01.cr.usgs.gov/MEASURES/SRTMGL1.003/2000.02.11/N31E078.SRTMGL1.hgt.zip
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 498 0 0 0 0 0 0 --:--:-- 0:00:01 --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- 0:00:02 --:--:-- 0
curl: (22) The requested URL returned error: 401
2025-01-09 13:53:49,330 - isce.contrib.demUtils.DemStitcher - WARNING - There was a problem in retrieving the file https://e4ftl01.cr.usgs.gov/MEASURES/SRTMGL1.003/2000.02.11/N31E078.SRTMGL1.hgt.zip. Exception
Could not create a stitched DEM. Some tiles are missing
N31E078.SRTMGL1.hgt.zip = failed