Dear zhangYingyin,
Apologies, we are having a hardware issue again, and we are trying to restore it as soon as possible. When it is done, the files will be available again for download.
Kind regards,
François
Search found 306 matches
- Mon Jan 04, 2021 11:44 am
- Forum: Support
- Topic: make auxdata_all crashing
- Replies: 10
- Views: 7478
- Fri Jan 01, 2021 5:39 pm
- Forum: Support
- Topic: Problems encountered when processing MDOIS
- Replies: 15
- Views: 9601
Re: Problems encountered when processing MDOIS
Dear Ding,
You can use the script tools/make_L1C.py to generate L1C files from L1A. This script uses l2gen. See also section 2.4 of the readme file.
Cheers,
François
You can use the script tools/make_L1C.py to generate L1C files from L1A. This script uses l2gen. See also section 2.4 of the readme file.
Cheers,
François
- Fri Jan 01, 2021 5:24 pm
- Forum: Support
- Topic: SVC gains for Polymer 4.10 and 4.13
- Replies: 3
- Views: 3747
Re: SVC gains for Polymer 4.10 and 4.13
Yes indeed, the SVC update follows an update of the algorithm.
Cheers,
François
Cheers,
François
- Fri Dec 11, 2020 7:58 am
- Forum: Support
- Topic: Use polymer v4.13 to process OLCI in the presence of thin clouds
- Replies: 1
- Views: 2671
Re: Use polymer v4.13 to process OLCI in the presence of thin clouds
Hello, There are many parameters that can be tuned, but most likely none that would improve your results easily. Unfortunately Polymer is known to retrieve underestimated values of water reflectance in moderately to highly turbid waters. We are doing research on this topic and hopefully this will im...
- Thu Dec 10, 2020 9:28 am
- Forum: Support
- Topic: luts.py error
- Replies: 4
- Views: 3507
Re: luts.py error
Can you check that luts.py has not been modified ? The line 999 of this file is part of a multi-line statement, and I don't see why there would be an invalid syntax here. Or double-check that you are not using python2 by accident, I think this might be the most likely issue. Just type $ python --ver...
- Wed Dec 09, 2020 10:57 am
- Forum: Support
- Topic: luts.py error
- Replies: 4
- Views: 3507
Re: luts.py error
Hello,
I suspect you are using a python version older than 3.6, can you confirm ?
Python 3.6 or newer is required.
Cheers,
François
I suspect you are using a python version older than 3.6, can you confirm ?
Python 3.6 or newer is required.
Cheers,
François
- Fri Nov 27, 2020 8:41 am
- Forum: Support
- Topic: Weird striped/blocky patterns in processed Rws and Flagbit 2048
- Replies: 2
- Views: 3075
Re: Weird striped/blocky patterns in processed Rws and Flagbit 2048
Dear Jan, Thanks for your feedback. Indeed in this case the area appearing in red does has unstable results, similar to what user vishnu identified. Work is underway to try and reduce this effect, but these are complex cases with very turbid waters (Mackenzie river). So it seems that the flag 2048 s...
- Tue Nov 24, 2020 11:44 am
- Forum: Support
- Topic: How to process landsat 7 data with POLYMER-v4.13?
- Replies: 1
- Views: 3471
Re: How to process landsat 7 data with POLYMER-v4.13?
Dear Ding,
It is not possible, there is no reader for Landsat7 data.
Kind regards,
François
It is not possible, there is no reader for Landsat7 data.
Kind regards,
François
- Thu Nov 19, 2020 2:44 pm
- Forum: Support
- Topic: Acquisition time set at 01 JAN 2000 00:00:00.0000
- Replies: 1
- Views: 2623
Re: Acquisition time set at 01 JAN 2000 00:00:00.0000
Hello,
Could you provide more details ?
The only attribute that is set in Polymer output regarding the acquisition time is called 'sensing_time', and after checking it is set correctly.
Cheers,
François
Could you provide more details ?
The only attribute that is set in Polymer output regarding the acquisition time is called 'sensing_time', and after checking it is set correctly.
Cheers,
François
- Wed Nov 18, 2020 8:49 am
- Forum: Support
- Topic: SVC gains for Polymer 4.10 and 4.13
- Replies: 3
- Views: 3747
Re: SVC gains for Polymer 4.10 and 4.13
Hi Fernanda, The SVC gains are not the same in v4.10 and v4.13. They are defined in params.py, see self.calib in method defaults_olci. For your information, they have been reset to 1 because of an algorithm change in 4.11 which would make them inappropriate, then re-calculated with this algorithmic ...