Selecting reflectance math band
Posted: Mon May 23, 2022 2:32 pm America/New_York
Hello,
I want to improve the Chl a concentration data in the Southern Ocean, specifically Drake Passage.
I found this algorithm Chl=exp10(0.3205-2.9139R+8.7428R2-16.1811R3+9.0051R4)
R=log10(Rrs(443/555)>Rrs(490/555)>Rrs(510/555))
for Globcolour data. In this paper https://doi.org/10.1002/jgrc.20270
I trying to use math band to select greatest reflectance proportion, however my programing knowledge is very limited
Tried something like: if log10(443/555)>log10(490/555)>log10(510/555) then log10(443/555) else log10(490/555)>log10(510/555).
Or maybe I can do it separately and see which one is greatest.
Some one can give me a hint?
Thanks,
I want to improve the Chl a concentration data in the Southern Ocean, specifically Drake Passage.
I found this algorithm Chl=exp10(0.3205-2.9139R+8.7428R2-16.1811R3+9.0051R4)
R=log10(Rrs(443/555)>Rrs(490/555)>Rrs(510/555))
for Globcolour data. In this paper https://doi.org/10.1002/jgrc.20270
I trying to use math band to select greatest reflectance proportion, however my programing knowledge is very limited
Tried something like: if log10(443/555)>log10(490/555)>log10(510/555) then log10(443/555) else log10(490/555)>log10(510/555).
Or maybe I can do it separately and see which one is greatest.
Some one can give me a hint?
Thanks,