[Talk-GB] Coastline Tidal Positions

Graham Jones grahamjones139 at googlemail.com
Thu Sep 16 18:51:28 BST 2010

The Vector Map District data includes some nice features like rocks and
cliffs too (e.g http://maps.webhop.net/vmdmap/Hartlepool.png).
I haven't tried to get these into OSM yet though - that is just a rendering
of the OS data.


On 16 September 2010 16:15, Chris Hill <osm at raggedred.net> wrote:

> Craig Loftus wrote:
>> Which is more accurate: the OS Streetview data that shows MHW (spring, I
>>> assume) or the PGS data?
>> I haven't used it for coast lines, but doesn't OS Vector District
>> include the high water mark? This would be the most 'accurate',
>> although not necessarily the most 'correct' source? Certainly better
>> than tracing from Streetview.
>> http://wiki.openstreetmap.org/wiki/Using_OS_Shapefiles
> The OS data seems much better than the PGS data.
> The OS vector data does seem to be older than the OS StreetView data, in
> places that I have compared so in places where there is a lot of change,
> such as rapid coastal erosion, tracing StreetView seems better.
> --
> Cheers, Chris
> user: chillly
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Dr. Graham Jones
Hartlepool, UK
email: grahamjones139 at gmail.com
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