I hope the U.S. Navy incorporates this into their nautical charts, but, sadly, I doubt they will. I wonder if this data would have prevented the 2004 undersea collision of the USS San Francisco. see, e.g.,
<a href="http://en.wikipedia.org/wiki/USS_San_Francisco_(SSN-711)" rel="nofollow">http://en.wikipedia.org/wiki/USS_San_Francisco_(SSN-711)</a>
They are inferring mountains and trenches based on the observed effect of their gravity on the water above. But can't there be mass concentrations that aren't mountains, like the lunar maria?<p><a href="http://en.wikipedia.org/wiki/Mass_concentration_(astronomy)" rel="nofollow">http://en.wikipedia.org/wiki/Mass_concentration_(astronomy)</a>
Duplicate of<p><a href="https://news.ycombinator.com/item?id=8408514" rel="nofollow">https://news.ycombinator.com/item?id=8408514</a><p>submitted 22 hours ago (alas, without discussion, so it's good to see some comments here). I see how that was done.