On Feb 16, 11:03*am, Graham P Davis wrote:
On Tuesday 16 Feb 2010 10:40, Alan scribbled:

When the main body of a shallow sea, such as the Southern North Sea,
reaches 4C does the SST cool faster because the maximum density has
been reached?

Not for the southern North Sea because the temperature of maximum density is
below the freezing point of -2C and the whole depth is cooled. However, if
you had referred to a salt-free inland lake you would have been correct.

--
Graham P Davis, Bracknell, Berks., UK. *E-mail: newsman not newsboy
"I wear the cheese. It does not wear me."

Thanks for that, of course the salt changes the point of maximum
density!