Chlorophyll a concentration for Lake (Water Quality)

Good morning ?
Dear Admin,
There’s no errors in all steps to obtain CHL a but in final step of C2 RCC processer message always apprearing like (errors occurred ’ band,Oa_rediance required) I tried by using two different images source (Eumetsat image and NASA Image) The results are same ?my Inquiry how to Applying The C2RCc processer to obtain CHL a for Lake Image ( Eumetsat Image)?

Thanks in advance,


Could you post a bit more of the error/log messages?
( SNAP FAQs - What to include in a forum post when reporting an issue?)

I’m not sure about the NASA images if they provide are compatible with the C2RCC processing. But the Eumetsat should.
Are you using OLCI L1C data?
For Lakes you might use Sentinel-2 with C2RCC, because of the higher resolution.