Questions about Algorithms for MODIS chlorophyll products

[lc_950.316]

I would like to know how the chlorophyll a concentration obtained from MODIS chlorophyll products is calculated?  OC3 or OC4?
Where can I find relevant instructions?
Thank you!:grin:

[gnwiii]

A good starting point is MODIS Aqua R2018.  The netcdf file metadata and OCSSW Processing System source code are very useful for the finer details.

[OB SeaDAS - knowles]

This link is helpful if you haven't yet found what you need https://oceancolor.gsfc.nasa.gov/atbd/chlor_a/

Danny