[Talk-GB] Counties and coasts
peter.miller at itoworld.com
Mon Jun 22 15:48:06 BST 2009
On 22 Jun 2009, at 15:14, Matthew Westcott wrote:
> On 22 Jun 2009, at 14:45, Chris Hill wrote:
>> I understand that
>> councils are responsible for the beach so the county could be said to
>> extend beyond what we currently mark as the coastline. Does anyone
>> where council boundaries actually end with respect to the sea and
> Entirely wild speculation, but logically I'd assume they ought to
> extend to the 12 mile boundary beyond the coastline which the UK
> claims as territorial waters...
Here is a view from the Essex county boundary (pink) from the OS
(Meridian) overlaid on Navteq coastline. The white area seems to be
sandbanks and the edge of the pink seems to relate more closely to the
coastline as on OSM. The administrative boundary for Essex on OSM
relates reasonably closely to the Naveq coastline however it actually
relates to sand-banks in the 1940's from NPE.
Bing (Microsoft) also use the Naveq data and their coastline
corresponds with the Navteq coastline data we show above however when
one clicking on the aerial photography the coast moves in a lot to
where Meridian says the coast is. Notice the nonsense on Bing around
the Mersea Island where Bing shows a land bridge from the Island to
the mainland which doesn't exist on aerial photography.
Google (using TeleAtlas) show the coast more closely related to the
aerial photography and the OSM coastline.
The Sealand article makes no reference to Sealand being 'in Suffolk'
or 'in Essex', but 'off the coast of Essex' and being now in
'territorial waters'. I thought the Queen owned the land between high
and low water anyway. The Three Mile limit article makes no reference
to who 'manages' this area of sea.
No answers, just a review of what happens. Personally I would find the
edge of dry land more useful than the edge of moving sandbanks and I
would like the edge of Essex (and the coastline) to match up with
where one starts to get wet! We then have a 'tUnited Kingdom
territorial waters' boundary which is out to sea (which we do have)
> - Matt
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