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How are gains mentioned in SeaHawk L2 metadata calculated?

Posted: Tue Jan 23, 2024 4:34 pm America/New_York
by skolluru
Hello,

I downloaded SeaHawk data and found the following gains in metadata.
[1.23070000000000 1.21280000000000 1.14780000000000 1.18620000000000 1.20230000000000 1.18570000000000 1 1]
Were they derived by based on "Sensor-independent approach to the vicarious calibration of satellite ocean color radiometry" method?

If so, was MOBY data used for comparing SeaHawk data or climatology?
I found only a couple of days when SeaHawk had matchup data with MOBY.

Thank you.

Re: How are gains mentioned in SeaHawk L2 metadata calculated?

Posted: Sat Jan 27, 2024 2:55 pm America/New_York
by OB.DAAC - SeanBailey
Yes, the Franz et al., 2007 approach was used, but with limited coverage over MOBY, the ocean reflectance model of Werdell et al., 2007 was necessary. Several clear ocean scenes were used.

Sean

Re: How are gains mentioned in SeaHawk L2 metadata calculated?

Posted: Fri Feb 02, 2024 12:21 pm America/New_York
by skolluru
Thank you Sean.