Do dem.py or dloadOrbits.py requier a seperate licensed package?

[odito2]

Hi, I'm new to ISCE and would like to know if it is possible to use dem.py for DEM downloading or dloadOrbits.py for orbits, without a seperate licensed package. I ask since I tried to download and failed. In case a seperate licensed package is needed, is there any other open source to download dem & orbits? How can I know which of the workflows of the open source ISCE needs a license?
Thank you!

[riyasmjgeo]

Seperate license is not required.
For orbit download of sentinel-1, you may find an alternative solution via https://anaconda.org/conda-forge/sentineleof

[odito2]

What of all the open ISCE source package is not open and requires license?

[EJFielding]

All of the ISCE2 package that is on GitHub is Open Source and does not require a license. There were some additional modules for ISCE2 written a while ago (insarApp.py and isceApp.py) that are not included and that is why the code prints a warning. Those old modules are now obsolete.

[odito2]

Thank you for your explanation. It is much clearer now. I there any updated tutorial for ISCE? I found one from 2015, which is not so relevant. I'm looking for some guidance. Odelya בתאריך יום ב׳, 18 ביולי 2022, 0:45, מאת Eric Fielding ‏< ***@***.***>:

…

All of the ISCE2 package that is on GitHub is Open Source and does not require a license. There were some additional modules for ISCE2 written a while ago that are not included and that is why the code prints a warning. — Reply to this email directly, view it on GitHub <#518 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AXV7LOWLTJA76M6SJYRZIKDVUR5ILANCNFSM52VNDW6Q> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.*** com>

[riyasmjgeo]

https://www.unavco.org/events/?category_name=short-courses&past_events=true&search=
You can find video lectures of past short courses

[yuankailiu]

Have anyone tried downloading DEM recently? The EARTHDATA server seems to have some issues?

For example, I do

 dem.py -a stitch -b 24 25 117 119 -s 1 -m xml -r -c

Then it keeps trying to retrieve and keep failing due to timeout.

curl -n  -L -c $HOME/.earthdatacookie -b $HOME/.earthdatacookie -k -f -O http://e4ftl01.cr.usgs.gov/MEASURES/SRTMGL3.003/2000.02.11/N4
1W125.SRTMGL3.hgt.zip
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   267  100   267    0     0   1089      0 --:--:-- --:--:-- --:--:--  1089
  0     0    0     0    0     0      0      0 --:--:--  0:05:00 --:--:--     0
curl: (28) Operation timed out after 300207 milliseconds with 0 out of 0 bytes received
2022-07-20 16:38:58,699 - isce.contrib.demUtils.DemStitcher - WARNING - There was a problem in retrieving the file  http://e4ftl01.cr.
usgs.gov/MEASURES/SRTMGL3.003/2000.02.11/N41W125.SRTMGL3.hgt.zip. Exception

Hope it is not just for me. Any idea about where we can report this and get it fixed?

[EJFielding]

I saw this recently, but then it started working again. Maybe the LP DAAC server has some capacity problems. Also check that you are not hitting the problem with Python 3.10 (#506 and #458 ).

[yuankailiu]

Thanks for sharing your experience. I am using python 3.8.0, and it does not complain about the SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats error as in #458 and #506.

Right now just an USGS link issue. Wait for them to fix it. Thanks!

[EJFielding]

I believe that we found and fixed the main problem with #560 that has been merged. The USGS now requires https so we had to update the ISCE2 code. In addition, there are still some capacity issues that cause some downloads to be slow. One tile that I downloaded took 15 minutes.