CI:
MODIS Color Index derived from reflectance data after correction for gaseous absorption, molecular scattering, and sun glint effects. It is basically the reflectance at 555 nm, referenced against linear baseline between 469 and 645 nm (Hu, 2011). CI has the advantage over the “standard” NASA chlor_a or other products because it is nearly immune to sun glint contamination, and therefore increases the data coverage for subtropical and tropical oceans. This is particular useful for cruise planning and for feature tracking. The MODIS standard product MOD35 (Ackerman et al., 2010) is used to discriminate clouds from water, and a cloudmask (grey color) is overlaid on the image.
