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l2gen takes a Level 1 file as ifile. It does not take seabass file as input file. See https://seadas.gsfc.nasa.gov/help-8.4.0/processors/ProcessL2gen.html#COMMAND_LINE_HELP For SGLI mission, your ifile would look like something like this -- GC1SG1_201811110139G05509_1BSG_VNRDL_0176.h5 or GC1SG1_2018...

Please do SeaDAS-Toolbox -> Software & System Info and share the result here.

SeaDAS does not provide a reader for L3b files. You can use l3mapgen to create L3m files from L3b, which SeaDAS can read -- https://seadas.gsfc.nasa.gov/help-8.4.0/processors/ProcessL3mapgen.html

See this post too -- viewtopic.php?p=12218&hilit=l3b#p12218

Thanks, Anna for sharing the content of matchup_entries.sb. I did replicate the error. It seems val_extract got called, but returned with error, and the error message was not helpful.

We are investigating the issue.

BTW, can you do seadas_info and share the result here?

Bing

OB.DAAC provides L3 mapped files with 4km and 9km resolution, but you can make your own L3 mapped files with higher resolution using SeaDAS -- https://seadas.gsfc.nasa.gov/ 1. download L2 files with the desired time and area from OB.DAAC -- https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sen=amod 2. ...

I can download AQUA_MODIS.20110520T132501.L2.OC.nc from our site. If your seabass file is downloadable, you can share the link so I can download the file. Otherwise, you can replace the filename matchup_entries.sb with matchup_entries.txt, and share the file here.

Tell us what error message you got trying to install SeaDAS 8.4.1, hopefully we can help you install SeaDAS and visualize the MODIS AQUA data

I noticed that you are still using SeaDAS 7.5.3. Maybe you could try 8.4.1, which has almost all the features of 7.5.3, plus a lot more?

https://seadas.gsfc.nasa.gov/

"ModuleNotFoundError: No module named 'requests'" indicates that you need to install requests module

Try

For direct access --https://oceandata.sci.gsfc.nasa.gov/directdataaccess/Level-2/Aqua-MODIS You can download the L2 files, open the files in SeaDAS, open the masks, and click on CLDICE Screenshot 2023-11-21 at 6.29.36 PM.png Or you can open any band, open the Mask Manager, and choose CLDICE, and pic...