Search found 266 matches

by fsteinmetz
Tue Jan 24, 2023 3:18 pm
Forum: Releases
Topic: Polymer v4.15
Replies: 0
Views: 26

Polymer v4.15

By downloading Polymer you agree to the licence terms and conditions . This release includes: - Support of uncertainty propagation for OLCI and MSI processing - Experimental processing modes for turbid waters processing and vegetation adjacency correction - Support for MSI processing baseline 4.00 -...
by fsteinmetz
Tue Jan 24, 2023 9:53 am
Forum: Support
Topic: error in processing sentinel 2
Replies: 4
Views: 38

Re: error in processing sentinel 2

Hello,

I see the numpy.float alias has been dropped since numpy 1.24. So, two solutions:
- Downgrade to numpy 1.23
- Or rename np.float to float in polymer/luts.py: line 187. This will have no incidence on the code. I will include this modification in next release v4.15

Cheers, François
by fsteinmetz
Mon Jan 23, 2023 10:39 am
Forum: Support
Topic: error in processing sentinel 2
Replies: 4
Views: 38

Re: error in processing sentinel 2

Hello,
What is your version of numpy ?
python -c 'import numpy ; print(numpy.__version__)'

Cheers, François
by fsteinmetz
Mon Jan 23, 2023 10:36 am
Forum: Support
Topic: Polymer Atmospheric Correction for GOCI
Replies: 1
Views: 344

Re: Polymer Atmospheric Correction for GOCI

Many thanks for sharing, Feng !
by fsteinmetz
Mon Jan 23, 2023 10:33 am
Forum: Support
Topic: Auxdata_all for 4.13 on Mac
Replies: 3
Views: 1393

Re: Auxdata_all for 4.13 on Mac

Sorry to come late on this issue, but I am not familiar with macos environments. I didn't understand if your issue is that you couldn't install wget, or did it still fail after doing so ?
by fsteinmetz
Mon Jan 23, 2023 10:27 am
Forum: Support
Topic: Sentinel 2 striping
Replies: 3
Views: 467

Re: Sentinel 2 striping

The striping in Sentinel-2 is due to the multiple detectors with a staggered configuration : the detection angles alternate across detectors (https://sentinels.copernicus.eu/web/sentinel/technical-guides/sentinel-2-msi/msi-instrument). Of course this is particularly visible in the sun glint. Polymer...
by fsteinmetz
Mon Jan 23, 2023 10:20 am
Forum: Support
Topic: Support to Landsat 5 and 7
Replies: 1
Views: 305

Re: Support to Landsat 5 and 7

Dear Rafael, There is no plan to support these sensors, because they have a limited number number of spectral bands, and the applicability of Polymer in these conditions would require not only the implementation of a dedicated reader, but also an evaluation of how Polymer behaves in these restricted...
by fsteinmetz
Mon Jan 23, 2023 10:13 am
Forum: FAQ
Topic: What does bbs represent?
Replies: 1
Views: 365

Re: What does bbs represent?

Hello, Indeed, this parameter is not named properly. The variable name "bbs" was used because in earlier versions of Polymer, another water reflectance model was used (Morel and Maritorena, 2001). This model is still implemented in Polymer, but the default is now PR05. Your analysis is perfectly cor...
by fsteinmetz
Tue Jul 19, 2022 7:32 am
Forum: Support
Topic: Feature: include OLCI b09 in output
Replies: 1
Views: 356

Re: Feature: include OLCI b09 in output

Dear Tiago,

You can include the output at band 673, by passing the following argument :
run_atm_corr(..., bands_rw=[400,412,443,490,510,560,620,665,674,681,709,754,779,865,1020])

By default, this band is indeed not included (see params.py:323)

Cheers,
François
by fsteinmetz
Tue Jul 19, 2022 7:27 am
Forum: Support
Topic: Polymer flags
Replies: 1
Views: 308

Re: Polymer flags

Dear Minsun Lee, Thanks for your message ! Yes it seems you are using the flags correctly. To answer your questions : - 256 is not used, it is a placeholder - no problem about that. - 1 is missing because there is no land mask in Sentinel 2 level1 products. To apply a land mask, you can use GSW by p...