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British Geological Survey - open access to maps & data

ChrisB

Well-known member
But don't bother trying it at the moment - everyone is, and it's overloaded and not working!
 

RobinGriffiths

Well-known member
Incidentally, this following quickly on the heels of the OS making 1:25,000 tiles available, has there been some sort of kick up the arse of these agencies by the government?


Robin
 

peterk

Member
I can't get the 1:50000 data to show up using dpegg's link.

I've managed to display it as an image overlay in google earth but its performance mudst be linked to server load.
If anyone wants to try it:
display the relevant area in google earth ( the BGS server may refuse requests if the area displayed is too big - at 13:00 today there was no problem getting about 15 sq km of mapping displayed - approx 5 * 3 km so the limit could be 5 * 5 km  )
Then from the menu <Add>  - <Image Overlay> and paste the BGS map server address of http://maps.bgs.ac.uk/ArcGIS/services/BGS_Detailed_Geology/MapServer/WMSServer? into the Link box (the address of the WMS server) and then click on the "Refresh" tab and then on the "WMS parameters"

Select the BGS server in the top box (if not displayed) and Google earth should connect to the BGS server and download a list of available map layers into the left hand window eg [T] GBR BGS 1:50k Linear features (Style = GBR BGS 1:50k Linear features). Layers are selected for display by adding to the RH Box . Clicking OK takes you back to the image overlay screen where you can:
1 adjust the opacity of the image to show the google earth picture through the overlay
2 Set the view based refresh to "After camera stops" - how long after you stop panning in google earth before the BGS overlay is refreshed
3 the view bound scale - I interpret this as to what percentage of the google earth display has the map displayed on it eg 1=all the screen and 0.1 would be a small rectangle in the centre.

PeterK
 

jeskynar

New member
Yes, I've got geology coming out of my ears but I don't know why it's green -- it's the colour key I can't find!
 

Les W

Active member
Using the Geology of Britain viewer that is provided on the BGS site I can view the geology and if I double click (left mouse button) on a particular rock outcrop it opens a window with the geological details. Doesn't work every time, seems a little flaky, but it does work.  (y)
 

martinr

Active member
I don't belive there is meant to be a "colour key". There are so many  rock types in the UK, each requiring its own colour. You can then make mistakes matching the colour on the map to the  wrong colour on the key.

Much better to click on the point you are interested in and open the link naming the  rock type with no possibility of error?
 
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