The authors have answered the questions posed by the reviewers, especially the question regarding what happens to non-spherical particles, for which they have provided a separate appendix that covers the math. It is interesting that they find only little change from spherical particles.

In my initial comment on the manuscript, I mentioned the rapid overturning of the water column in the Gulf of Lions as a mechanism for transporting particles to great depths in a short period (1-2 days). While I realize that the authors are trying to produce a general mathematical description of the transport of such particles that is applicable globally, I would like to see a sentence to this effect either in section 4.3 or in the conclusion.

One potential reviewer was unable to review the manuscript, but did provide a number of references that he felt should be included. These are:````` ``

https://iopscience.iop.org/article/10.1088/1748-9326/aa8e8b/meta
https://www.sciencedirect.com/science/article/pii/S0967063719303243
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1838/2642
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0161581
https://www.sciencedirect.com/science/article/abs/pii/S0025326X19300748
https://www.sciencedirect.com/science/article/pii/S0025326X19307672
https://www.sciencedirect.com/science/article/abs/pii/S0025326X14007905

I would appreciate it if the authors could check these and see if they are needed. Otherwise, the manuscript is acceptable for publication.

Thanks to the authors for making these small changes. The manuscript can now be published.