confusion to the transmittances in calculating rhos using SeaDAS

[zhigang]

Hi,

In the old post of ocean color forum (https://oceancolor.gsfc.nasa.gov/forum/ ... l?tid=2229), I learn about that SeaDAS made adjustments for variours transmittances in calculating rhos (surface reflectance):

rhos = PI / F0 / mu0 * (Lt / tg_sol / tg_sen - Lr) / t_sol / t_sen / t_o2 / t_h2o.

As such, it is slightly different with the simple Rayleigh corrected reflectance (e.g., Rrc in Hu et al.).

In this equation, I was wondering what is the content of t? Does it include the aerosol transmittance? Or, it only includes the gas and water vapor contribution?

Regards,
Zhigang

[jared]

Hi Zhigang,

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

Minwei

[zhigang]

Thanks for your reply, Minwei.--zhigang