Estimates of Hyperspectral Surface and Underwater UV Planar and Scalar Irradiances from OMI Measurements and Radiative Transfer Computations

Round 1

Reviewer 1 Report

The article presents a prototype of satellite algorithms for computing the hyperspectral surface and in-water UV solar radiation for the Ocean Color Instrument, which is the primary sensor of the PACE mission. The authors extended the IOP models into the UV range, updated the surface irradiance algorithm for the hypespectral computations and calculated the underwater radiation field using Hydrolight. In addition, they train a neural network to reproduce the physics-based DNA damage penetration depth for operational data processing.

Comments:

1. It should be explained how the Chl concentration distribution (Fig. 6b) was obtained under the clouds (Fig. 6d).
2. The brevity of the neural network description contrasts with the rest of the article. It is recommended to expand this part.
3. The neural network efficiency should be evaluated in comparison with Hydrolight.
4. What is the reason for not using the ultraviolet absorption spectrum of pure water, measured with an integrating cavity?

Mason JD, Cone MT, Fry ES. Ultraviolet (250–550 nm) absorption spectrum of pure water. Applied optics. 2016 Sep 1;55(25):7163-72.

5. In figure 6, the captions for parts b and c are mixed up. The two bottom parts of Figure A2 are identical.

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Reviewer 2 Report

See my detail comments in the pdf.

Please, review the figures. There are 2 figures that are not shown (6 & 7)

Check that you are defining all acronyms. And always define the colorbars.

Comments for author File: Comments.pdf

Author Response

Please see the attachment

Author Response File: Author Response.pdf