Remote sensing estimation of chlorophyll-a from ocean colour is degraded mainly by coloured dissolved organic matter (CDOM), which absorbs strongly in the same blue wavelengths used for chlorophyll retrieval.
CDOM (gelbstoff/yellow substance) absorbs blue light in a spectral region that overlaps with chlorophyll absorption, causing standard blue/green band-ratio ocean-colour algorithms to overestimate or misattribute...
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