6 votes
Accepted

Were sub-sea river channels formed when the land was above sea level?

Can it be concluded, based on this picture alone, that the channel was formed when the entirety of it was above sea level? In other words, is that the most plausible known mechanism for the formation ...
David Hammen's user avatar
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3 votes

Does the 0m elevation height of a Digital Elevation Model (Copernicus DEM) correspond to mean sea level?

Here is the answer from the Support Team of Copernicus: The definition of the 0 m elevation for ocean areas is not dependent on the acquisition date of the input images. Please note that the ...
Circus pygargus's user avatar
3 votes
Accepted

Is the surface of the Indian ocean really 106 meters below sea level?

Is the surface of the Indian ocean really 106 meters below sea level? Obviously not; it is at sea level. It is 100+ meters below the reference ellipsoid. Nor is the spot some hundreds of kilometers ...
David Hammen's user avatar
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