[CF-metadata] Ocean S-coordinate respecification

From: Jonathan Gregory <j.m.gregory>
Date: Tue, 26 Oct 2004 09:30:41 +0100

Dear Rich

I agree with you that it would be better to replace the existing definition
of the ocean_s_coordinate with your new, less prescriptive, one. Contacting
people who might be using it would be a good idea if they aren't subscribed
to this group!

Although you're right that sigma is a special case of s, I think we can keep
sigma, just as we have both atmosphere sigma and hybrid-sigma-pressure.

In all the definitions of sigma and s for ocean we have "relative to ocean
datum (e.g. mean sea level)". Could we be more precise about these? We should
be clear what quantity the calculated z will be, and that depends on the
definition of its inputs. Would it be correct to say the heights and depths
are all wrt geoid, for instance?

Cheers

Jonathan
Received on Tue Oct 26 2004 - 02:30:41 BST