Dear Wesley,

Indeed, the arguments sline, eline, ..., landmask should be arguments to Level1_MSI, not run_atm_corr.
You have to move a closing parenthesis after these arguments.
Cheers,
François

Dear Guillaume,

Not directly - to get the normalized water leaving radiance, you would have to multiply the normalized water reflectance provided by Polymer, by F0 (extraterrestrial solar irradiance at mean Sun-Earth distance) and divide by pi.
Cheers,
François

Dear Muhammad,
I suspect you are using the library xlrd in version 2. Please try to downgrade it to "xlrd<2", and this should fix the issue.
Cheers,
François

Dear Vishnu,

The pixel based uncertainties are currently not available in the Polymer output but this is under development and should be available in a later version - I have currently no estimated date for that release.
Kind regards,
François

Hello Guillaume, I have tried, and could process at least the first one A2017315041000 with Ancillary_ERA5 and polymer v4.14 (indeed, no change in Ancillary_ERA5 since v4.13) and seadas ocssw v2022.0 for L1C generation (a minor change was needed in make_L1C.py to account for changes with respect to ...

Hi, Indeed, running the code on Windows is probably not straightforward because it requires linux-specific tools (gcc, make). My advice would be to use WSL on windows (https://docs.microsoft.com/en-us/windows/wsl/about). It should make it possible to install make and gcc, and then anaconda inside ws...

Hello, Thanks you for your interest in Polymer ! And apologies if the installation procedure is not clear enough. While the software has many possibilities and I agree that a more comprehensive documentation would be welcome, the readme file at the root of the repository should guide you in the proc...

Hello, I was able to process this particular file without problem with the following command: run_atm_corr( Level1_MODIS('A2020091092000.L1C'), Level2_NETCDF(), multiprocessing=-1, ) The MSL12 version was : l2gen --version msl12 9.5.1-V2021.2 (Jun 18 2021 11:22:53) And Polymer was v4.14. Did you use...

Hi, Yes you can specify a fixed altitude for the whole image, by passing the keyword altitude to the level1 object. eg: Level1_...(..., altitude=300) However, I see that there can be an inconsistency issue regarding the use of the altitude keyword. The atmospheric pressure is supposed to be the sea ...

Hello,
Did you use ERA5 ancillary data ?
If so, that would explain the difference. See https://www.hygeos.com/static/polymer/CHANGELOG.TXT for more information about the product evolutions between each versions.
Cheers,
François