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As Sean pointed out in another post: "As the name implies, l2gen generates L2 files. We currently do not have an L1C processor."

Screen Shot 2021-04-07 at 5.58.21 PM.png You need to place the actual name of level-2file and file_to_attach in the command, like "ncdump -h A2015017054000.L2_LAC_OC > file_to_attach.txt". Then you can attach the "file_to_attach.txt" here by clicking the "Attachments" ...

The file you chose is at night, there is no sun, therefore no Rrs or Lw.

https://oceancolor.gsfc.nasa.gov/cgi/br ... nc_SST_BRS

Thanks, George for pointing out the current naming convention. We are in the process of converting our data over to a new file naming convention. The link I posted is for the new naming convention. OC for ocean color, SST for sea surface temperature or IOP for inherent optical properties UTC time is...

Maybe you should stick to this link if you need to find data for a specific area. https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sen=amod Here is the link to OBPG File Naming Convention: https://oceancolor.gsfc.nasa.gov/docs/filenaming-convention/ For AQUA_MODIS.20201231T195000.L2.SST.nc as an examp...

When you install_ocssw, did you use the option --modisa to install MODIS Aqua files? For more information on options, you can run install_ocssw -h. Also, I assume you installed SeaDAS-7.5.3, for SeaDAS OCSSW processing on Windows is not yet supported in SeaDAS 8.0.0, but is coming soon. Here is more...

See if this link would work better?
https://oceandata.sci.gsfc.nasa.gov/MODIS-Aqua

Thanks for sharing more detailed information. I did repeat your error reading A20192742019304.L3m_MO_CHL_chlor_a_4km.nc and AQUA_MODIS.20190101_20190131.L3m.MO.SST.sst.4km.nc. It's a known issue for SeaDAS 8.0.0 in reading files with null value attributes in metadata. The fix will be in the next rel...

The L3b file format is not a raster image format. The internal data model for SeaDAS is based on 2D raster images, so visualizing the L3b files is not directly possible. The data need to be mapped prior to display. You can use OCSSW -> l3mapgen to map L3b file to L3M file and read it. Here is the li...

Please tell us what version of SeaDAS are you using? SeaDAS-7.5.3 or SeaDAS 8.0.0?
Are you trying to read L2 data?
I am able to read A2019256071000.L2_LAC_OC.nc (MODIS AQUA 2019-09-13) and AQUA_MODIS.20190913T071001.L2.SST.nc with both versions of SeaDAS.