As cute as it is to see you give advice to the scientific community, you might first learn that TSI includes UV, only a very small percentage of UV reaches the surface, EUV is completely absorbed in the atmosphere, and the transmission of UV through water drops quickly with decreasing wavelength. It is blue visible light that penetrates deepest in the ocean.

https://en.wikipedia.org/wiki/Electromagnetic_absorption_by_water#/media/File:Absorption_spectrum_of_liquid_water.png