Search found 314 matches

by fsteinmetz
Tue Jun 11, 2024 3:52 pm
Forum: Support
Topic: Issue with Polymer (Sentinel-2 and Sentinel-3)
Replies: 3
Views: 3500

Re: Issue with Polymer (Sentinel-2 and Sentinel-3)

Hello, Apologies for the late answer, I have made some changes in example.py which was indeed based on an older version. The fix indicated by wxfei19whu should indeed fix the problem, at least you shouldn't receive an error such as : ImportError: cannot import name 'Level1' from 'polymer.main' These...
by fsteinmetz
Tue Jun 11, 2024 3:44 pm
Forum: Support
Topic: sentinel-2 for 10m part image multiprocess=-1
Replies: 1
Views: 2557

Re: sentinel-2 for 10m part image multiprocess=-1

Hello Binbin,
Does the system run out of memory when this happens ? I suspect this may be the cause.
In this case you may also check in the script you are using to run Polymer, whether some objects are not released, thus cluttering the memory.
Cheers,
François
by fsteinmetz
Tue Jun 11, 2024 3:40 pm
Forum: Support
Topic: Polymer v4.17beta2 cython compiling error
Replies: 2
Views: 1473

Re: Polymer v4.17beta2 cython compiling error

Hello, Apologies for the late answer. Which version of cython were you using ? The culprit commit concerns probably the modifications introduced for supporting cython>=3. However I have no experience of using polymer on Mac ; I don't know if using cython on this system may have an impact, and can no...
by fsteinmetz
Tue Jun 11, 2024 3:35 pm
Forum: Support
Topic: Issue on POLYMER OLCI
Replies: 1
Views: 4385

Re: Issue on POLYMER OLCI

Hello, Apologies for the late answer and thanks for your feedback. This kind of algorithm unstabilities happen undersome circumstances, here most likely the presence of turbid waters and the grazing sun angles. The flags INCONSISTENCY+ANOMALY_RWMOD_BLUE are not recommended for systematical use for O...
by fsteinmetz
Tue Jun 11, 2024 3:18 pm
Forum: Support
Topic: POLYMER not using case-2 mode in case-2 water?
Replies: 1
Views: 3966

Re: POLYMER not using case-2 mode in case-2 water?

Hello, The "CASE2" flag in Polymer is not dedicated to the detection of case 2 water, but is an internal flag which indicates if the algorithm works in "case 2 mode", which involves a second iteration round, and should be triggered mostly over turbid waters, but not always. This flag also does not i...
by fsteinmetz
Tue Jun 11, 2024 3:09 pm
Forum: Support
Topic: Facing problem in L8 correction
Replies: 1
Views: 365

Re: Facing problem in L8 correction

Hello,
Here the issue is not related to the use of the angle files, but to the file autodetection of landsat products in polymer_cli.py.
I have added a fix on github, hopefully it fixes this issue.
Cheers, François
by fsteinmetz
Tue Jun 11, 2024 3:08 pm
Forum: Support
Topic: Error Processing Landsat-8
Replies: 9
Views: 31908

Re: Error Processing Landsat-8

Hello, please check my answer in the dedicated thread : viewtopic.php?f=7&t=256
by fsteinmetz
Tue Jun 11, 2024 3:01 pm
Forum: Support
Topic: Abnormal Rrs distribution in Polymer OLCI
Replies: 1
Views: 2522

Re: Abnormal Rrs distribution in Polymer OLCI

Hello, Thanks for your feedback. This kind of errors may happen in some cases under which the algorithm may be unstable. The flag "ANOMALY_RWMOD_BLUE" (value 4096 - based on the detection of the difference between the model and the observation in the blue bands), then detects the resulting anomaly. ...
by fsteinmetz
Fri Mar 08, 2024 10:54 am
Forum: Releases
Topic: SMART-G is available on github
Replies: 0
Views: 14090

SMART-G is available on github

Following Polymer, Hygeos is happy to announce that its advanced radiative transfer code, SMART-G, is now also available on github.

https://github.com/hygeos/smartg

Users are encouraged to use this version, as it contains many fixes and new features.
by fsteinmetz
Thu Feb 08, 2024 9:29 am
Forum: Support
Topic: Problem when installing polymer github distribution
Replies: 2
Views: 3485

Re: Problem when installing polymer github distribution

Hello,
I don't see an error message here, maybe an error in copy-pasting ?