This patch provides a fix for the new password requirement on the usgs SRTM dem/wbd server. To install this patch do the following: 1) place the file isce-2.0.0_201604_dempatch.tgz in the directory above your isce-2.0.0_201604 directory. 2) while in the directory directly above your isce-2.0.0_201604 directory do the following steps: 3) ls isce-2.0.0_201604 (to make sure you are in the right place) 4) tar -xzvf isce-2.0.0_201604_dempatch.tgz this will replace the following files: isce-2.0.0_201604/components/iscesys/DataRetriever/DataRetriever.py isce-2.0.0_201604/contrib/demUtils/demstitcher/DemStitcher.py isce-2.0.0_201604/contrib/demUtils/demstitcher/DemStitcherV3.py isce-2.0.0_201604/contrib/demUtils/swbdstitcher/SWBDStitcher.py isce-2.0.0_201604/release_history.py isce-2.0.0_201604/release_note.txt 5) cd isce-2.0.0_201604 6) scons install 7) cd $HOME (Your home directory. This environment variable must be defined for this version of the code to work.) 8) create a file named .netrc with the following 3 lines (including the indentations apparently): machine urs.earthdata.nasa.gov login your_earthdata_login_name password your_earthdata_password Note: (a) If you don't already have an earthdata username and password, you can set them at https://urs.earthdata.nasa.gov/ (b) If you already have an earthdata account, please ensure that you add LPDAAC applications to your account: - Login to earthdata here: https://urs.earthdata.nasa.gov/home - Click on my applications on the profile - Click on “Add More Applications” - Search for “LP DAAC” - Select “LP DAAC Data Pool” and “LP DAAC OpenDAP” and approve. 9) chmod go-rwx .netrc *** remove permission for others to view your credentials *** 10) process data where you don't already have dems and swbd files. 11) verify that non-zero dems and swbd files were created.