The paper received comprehensive reviews which agree on several points on restructuring of some of the paper sections and including additional references. As indicated by the authors in their responses, the paper should be revised based on the specific reviewers comments.

Authors have done excellent job revising the paper and it now represents a thoughtful and comprehensive review of an emerging sub-discipline "marine geomorphometry".
There are few typos and grammar corrections that need to be done, for example:

p. 4 l. 6 slowly automated > gradually automated
l. 9. Evan and Minar 2011 > Evans
l. 15 sometimes known as > referred to as
l. 18 combined with the increase availability > increased
i. 21 the following sentence needs to be rewritten, especially the last part
Despite the important amount of literature available on the qualitative description of terrain morphology from DTMs, for instance from the geophysical literature, the current review focusses on modern geomorphometry, i.e. the extraction from depth models of additional quantitative information describing terrain characteristics.

p. 7 l 6 way than what is done on land > way as it is done on land

When discussing coastal geomorphometry, I would like to recommend the following publication (but it is not necessary to include it in the references as it is really terrestrial rather than marine, but the authors may find some useful algorithms there that would apply also for marine geomorphometry)
Hardin, E., Mitasova, H., Tateosian, L., Overton, M., 2014, GIS-based Analysis of Coastal Lidar Time-Series, Springer Briefs in Computer Science, Springer, New York, 84 p.