Forum

Dear Sean,
this would be wonderful, thanks a lot! I'll watch for the new test version and release.
Best,
F.

Dear Sean and Roger,
thanks a lot for the feedback! This could really mean a lot for us.
If I understand well, it means updating setanc.c but there would be a need for quite a compiling effort, wouldn't there ? Or could we expect a software update in the short term?
Thanks again!
Best, F.

Dear Alex, thanks a lot for your feedback, this is really appreciated. I am also using l2gen on the command line (from a shell, I tried csh and bash). The test image I am using is actually ~ twice smaller (7848 lines) because it is cut at 10 deg. North. With l2gen associated with V2023 (9.6.0-V2023....

Dear Support, the example I'm using (processing a S3A image) is l2gen par=./l2gen.par (l2gen Version 9.11.0-V2025.1 ) with l2gen.par containing: ifile=S3A_OL_1_ERR____20170516T112404_20170516T120828_20180420T162232_2664_017_351______LR2_R_NT_002_x/xfdumanifest.xml ofile1=./O2017136112404.L2_S3A.nc l...

Dear Support,
to continue testing, could you please update me on which OS versions are recommended to run V2025 ? I see references in some help pages but they seem to point to rather old releases of Ubuntu or CentOS .
Thanks a lot!
Best, f.

Dear Support, I am still looking desperately for a reason for the decrease in speed for l2gen between V2023 and 2024-2025. For instance the processing of a S3A large image takes 8 times longer. I am using only default options, and the only difference I've seen is the addition of absaer_opt=0 is the ...

Dear Support,
sorry for the slow reply. Our machines have Xeon CPUs running RHEL 8.10 as OS. When I source SeaDAS to V2023.3, l2gen goes fast, while if it is V2025.1, it is very slow. Do you have an idea of why this could happen?
Thnaks,
Best, F.

Dear support, thanks a lot for the reply! I am using l2gen exclusively from the command line (with default options), and so far I've noticed problems with Sentinel-3A and MODIS-A. I have seen that l2gen has taken some weight between the 2 versions. However, the screen outputs appear to be the same (...

Dear support, I am experiencing something that's never happened before, i.e., l2gen is now excruciatingly slow (with very little CPU capacity used, ~1%). This has happened since I installed V2025.1, while the previously installed l2gen, associated with V2023.3, is running fine (with close to 100% CP...

Dear Support, I am interested in using l2gen on lakes. I'd like a confirmation on the use of the atmospheric pressure. From the source code, I understand that the pressure used is always the sea level pressure (from MERRA files) to which is applied an exponential correction if proc_land=1 (default) ...