Next message: Richard M. Pisko: "Re: Navigating Around Hills and Dips in the Ocean"
On Sat, 16 Aug 2003 18:27:33 +0100, Dr. Geoffrey Kolbe wrote:
>For a map of the lows and highs of the ocean's surface, see:
>http://www-aviso.cls.fr/html/applications/geophysique/199901_uk.html
>
In the text is the statement:"These differences can generate sea level
variations of over 100 meters between two ocean regions thousands of
kilometers apart. "
>But there seems to be an anomaly in the map shown. The map of the world
>(shown on the left) is colour coded and there is a colour scale to the left
>of the map which ranges from +80 to -80 metres. This would seem to accord
>with David Hoyte's statement that the mean surface of the oceans does vary
>by up to 200 metres. But the map on the right is a detailed blow up of the
>Indian Ocean. This is also a colour coded map, but the scale to the right
>of the map only ranges from +5 to -5 metres. This map shows a range in
>height over the Indian ocean of around 10 metres, whereas the large world
>map shows a variation of at least 80 metres for the same region. There
>would appear to be an error here somewhere.
>
Yes, your eye picked that up where mine would have passed over. Thank
you.
--
Richard ...
