Re: C-SAT

[Jim Green <JMGreen@sisna.com>]

This is true, David, and the hump is said to be as much as 20 ft high --
spread out over a few miles.

But why, I wonder, is it a "hump"?  If the local gravitational constant
there is greater, why isn't there a "depression"?

And thank you all for the SEASAT hints -- a WebCrawler search gives 36 sites
including a site which has 27 pages of references -- but alas no references
to the ocean tides -- I was hopping to get a real time co-tidal map.
Nevertheless, this will keep me busy for a day or two.

Jim Green
.. 


At 02:45 PM 10/14/96 EDT, you wrote:
> Jim Marsh wrote:
> > So why do seamounts cause changes in the ocean's surface?  JSM
>
> Because they are more dense than the surrounding seawater and the
> gravitational effects from their excess mass perturbs the earth's 
> geopotential enough to cause the ocean surface (which follows an equi-
> geopotential surface) to "hump up" over them.
>
> David Bowman
> dbowman@gtc.georgetown.ky.us