Calculate Chlorophyll-a from Landsat 8 data

kamonegi · by **kamonegi** » Thu Mar 01, 2018 7:53 pm America/New_York

Hi everyone,

I want raster data of Chlorophyll-a concentration from Landsat 8 data.

On The OCx algorithm(https://oceancolor.gsfc.nasa.gov/atbd/chlor_a/#sec_2), instead of remote sensing reflectances (Rrs_blue and green), TOA planetary reflectance(of blue and green bands) can be used to calculate the concentration of chlorophyll-a?

Difinition of TOA planetary reflectance is here:
https://landsat.usgs.gov/using-usgs-landsat-8-product

Thanks for your help.

by **OB.DAAC - SeanBailey** » Fri Mar 02, 2018 8:47 am America/New_York

No, TOA reflectance cannot be substituted for Rrs in the OCx algorithm.

SeaDAS supports OLI on Landsat 8, but the current version cannot handle the format change made last April with "Collection 1".
The next release of SeaDAS will be able to process OLI Collection 1 files. We are actively working on it's release.

Stay tuned :grin:

Sean

kamonegi · by **kamonegi** » Wed Mar 07, 2018 11:28 pm America/New_York

Thanks for your reply.

OK, I am waiting for the next release.:wink:

Regards

Kamo