The nc file cannot be opened

[zouxt]

Hello!
I am a student ，and I'm going to do research on Marine ecology，so I need some marine environmental data.
Therefore,I recently download some data from oceancolor.
The AQUA-MODIS L3 data from chlorophyll and SST in nc format that I downloaded at the end of 2023 can be used normally, but the nc format data that I downloaded in the same step in April 2024 cannot be used, and I can't open it either with r language code or SeaDas software. I found that the two downloaded nc data format names are not quite the same (as shown in the figure). I want to know which step went wrong, or if there is a way to download the data to work properly.
Please！

[OB ODPS - towens]

Run the "file" command on the files you can't open to determine that they are actual netCDF files. If they are HTML, you can open one in a browser to see if it has error information about your download attempt.

Tommy

[OB SeaDAS - xuanyang02]

It'll help if you can share the name of a L3m file that you can not open. Please also do Softwaer & System Info on SeaDAS, and share the result here.

[zouxt]

The file I could not open was not L3m, but L3b. The file I downloaded from oceancolor was L3b. The following is the file name of the file I downloaded and the error when SeaDas software could not be opened

[OB SeaDAS - xuanyang02]

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