Search found 315 matches
- Mon Aug 21, 2023 1:10 pm
- Forum: Support
- Topic: Landsat 5, 7, and 9?
- Replies: 4
- Views: 42597
Re: Landsat 5, 7, and 9?
Hello, These sensors are currently not supported. L5 and L7 are not supported and Polymer's applicability to these sensors may be limited due to the available spectral bands. L9 could be supported, and would require the development of a reader. I am currently not planning to work on it in the short ...
- Mon Aug 21, 2023 12:59 pm
- Forum: Support
- Topic: error of processing sentinel-2
- Replies: 3
- Views: 30578
Re: error of processing sentinel-2
Thanks Tiago, I will check and update the dependencies in next release.
- Mon Aug 21, 2023 12:51 pm
- Forum: Support
- Topic: Inconsistencies in tau_r, K_O2, and K_NO2 coefficients
- Replies: 2
- Views: 26391
Re: Inconsistencies in tau_r, K_O2, and K_NO2 coefficients
Hi Guillaume,
Thanks for this. Indeed the absorption coefficients would require some more up-to-date and consistent information. I will include this in next Polymer release.
Cheers,
François
Thanks for this. Indeed the absorption coefficients would require some more up-to-date and consistent information. I will include this in next Polymer release.
Cheers,
François
- Mon Aug 21, 2023 12:41 pm
- Forum: Support
- Topic: MSI2 Sline Endline command error
- Replies: 4
- Views: 29883
Re: MSI2 Sline Endline command error
Hi, The answer to your question is in the Level1_MSI docstring ; I agree it may not be the most visible ;) sline, eline, scol, ecol refers to the coordinate of the area to process: * in the 1830x1830 grid at 60m resolution * in the 5490x5490 grid at 20m resolution => eline-sline and ecol-scol must b...
- Mon Aug 21, 2023 12:34 pm
- Forum: Support
- Topic: Assigning a Bounding Box
- Replies: 1
- Views: 24266
Re: Assigning a Bounding Box
Hi, Indeed it is possible, but the bounding box has to be specified in pixel coordinates. All Level1 objects support the following arguments: sline, eline, scol, ecol, which provide the start and end lines and columns for the bounding box. For Sentinel-2, the coordinates also depend on the chosen re...
- Mon Aug 21, 2023 10:37 am
- Forum: Support
- Topic: Incorrect latitude and longitude values while processing S3_OL_1_EFR
- Replies: 1
- Views: 25172
Re: Incorrect latitude and longitude values while processing S3_OL_1_EFR
Hi Tiago and sorry for my late reply. Thanks for providing a test image and location, I can reproduce the issue of lat/lon unicity on this file. The lat/lon in Polymer are directly copied from the level1 datasets, located in the "geo_coordinates.nc" file (no tie points are involved). I initially sus...
- Mon Aug 21, 2023 8:31 am
- Forum: Support
- Topic: HICO Data processing
- Replies: 1
- Views: 25791
Re: HICO Data processing
Hello, To process HICO, you can use the same logic as with the other sensors, using the Level1_HICO class. The resulting python script would look like : from polymer.level1_hico import Level1_HICO from polymer.main import run_atm_corr from polymer.level2_nc import Level2_NETCDF run_atm_corr( Level1_...
- Tue May 09, 2023 8:53 pm
- Forum: Support
- Topic: Bitmask and flags - OLCI
- Replies: 1
- Views: 23034
Re: Bitmask and flags - OLCI
Dear Patricia, BITMASK_INVALID is an internal mask, and corresponds to the bits in "bitmask", that lead to an empty product (presence of NaN values). BITMASK_REJECT is the value (1023) included in the recommended expression that you should apply on the resulting products to filter out pixels that ma...
- Tue May 09, 2023 8:36 pm
- Forum: Support
- Topic: ImportError: cannot import name 'Level1' from 'polymer.main'
- Replies: 1
- Views: 22716
Re: ImportError: cannot import name 'Level1' from 'polymer.main'
Thanks Rafael ! This will be included in next release.
- Thu Apr 27, 2023 9:04 am
- Forum: Support
- Topic: Can users develop their own programs based on Polymer to support specific satellite sensors?
- Replies: 1
- Views: 18294
Re: Can users develop their own programs based on Polymer to support specific satellite sensors?
Hello, Polymer source code is available, so you can indeed develop your own programs to support specific sensors for research purposes. However, the software is still subject to its original licence, so you may not redistribute a modified version of the code. There is no technical manual available f...