Col wrote:


"Philip Eden" philipATweatherHYPHENukDOTcom wrote in message
...


You really do need the actual wind to be E-ly or ESE-ly at
Jersey to get the unadulterated cold air off the French mainland.
Even an ENE-ly off the Cotentin peninsula will have originated
over the eastern Channel. There's only a 20km sea-crossing
between the French coast and Jersey, and at extreme low
spring tides most of that is exposed. (Jersey was actually
separated from the French mainland as recently as the 7th
century AD ... no' a lo' of people know that).

No, I didn't know that.
I would have thought that by AD 600 any ice age related
sea level rise would long since have have stabilised.
How much lower would sea levels have to be for Jersey to
be connected to the French mainland?
And if that was the case I would imagine that the coastline
of Britain would look quite different to that of today.


Apart from a couple of narrow channels less than a mile wide and 10-15
metres deep much of the area between the east of Jersey and the French
mainland is very close to drying out at low water during the biggest
spring tides.

Norman
--
Norman Lynagh
Chalfont St Giles, Buckinghamshire
85m a.s.l.
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