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Hi Sami,

(1) yes, MBAC is used for the atmospheric correction of PACE OCI.
(2) Each sensor has its own default parameters, which are used by generating the OB.DAAC ocean color products. But you can always change these paramters.

Best,
Minwei

Hi Zhigang, Here is the reference for aer_opt=-18, which is called MBAC atmospheric correction algorithm. https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2019.00116/full OCI does not currently work with some of the alternate aerosol selection methods (such as MUMM), as the ...

Hi Brian,

To my best knowledge, SVC has not been done for MODIS SWIR bands.

Best,
Minwei

Hi Matt,

You are right, aer_opt=1 chooses r30f95v01, aer_opt=2 chooses r30f80v01......

alpha listed in the products tab means polarization rotation angle. angstrom in the tab means angstrom exponent.
I don't know if there is a good reference for those aerosols models.

Good luck,
Minwei

Hi,

These LUTs are generated through running radiative transfer model under different atmosphere conditions and different sun and observation geometries. You can refer to this paper for detailed procedure to generate LUTs: https://ieeexplore.ieee.org/document/7120080.

Best,
Minwei

Hi Zhigang,

Aerosol transmittance is not included in t_sen and t_sol when calculating rhos.

Minwei

You need to transform these big values in the LUTs to log(). These log transformed values are then used for the interpolation. The interpolated value is then transformed back using exp().
Minwei

(1) Splint () returns the phase function interpolated from LUTs using the scattering angle (scatt1[ig]). (2) The reason for the exponential function is that before the interpolation, the phase function in the LUTs is transformed to log(phase). So after interpolation, the phase function need to be tr...

sorry for the confusion. It is ( pi * ((Lt / (tg_sen * tg_sen)) - Lr)) / ( F0 * mu0 * tsol * tsen ).  The / t_o2 / t_h2o is not removed. I don't know the reason for the division of t_o2 and t_h2o but it seems t_o2 only affects band at 765 nm and t_h2o affects sensor SeaWIFS. For the majorit...

Hello,
  rhos in SeaDAS is calculated from:  pi / F0 / mu0* (Lt/tg_sen/tg_sol - Lr)/tsol/tsen.
  I don't think there is a Rrc product from SeaDAS. For FAI, Rrc= pi / F0 / mu0* (Lt/tg_sen/tg_sol - Lr).

Minwei