14 votes
Accepted

What is this UK coordinate system?

Any data you receive from the UK with out a specified CRS will almost certainly be in OSGB (EPSG:27700) which is the preferred CRS of our national mapping agency (OS). Your data appears to be no ...
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  • 75k
8 votes
Accepted

Complete list of UK postcodes plus their city, county, uk country

OS Code-Point Open is probably the best you will get for free, and should provide you with all the data you need.
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  • 1,665
7 votes

UK coastline shapefile?

My number one source for shapefiles is DIVA-GIS, simply select your country (United Kingdom) and subject (Administrative areas). Unzip the downloaded file and you should see 3 polygon shapefiles with ...
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  • 72.4k
7 votes
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Ordnance survey missing counties from boundary line shapefile?

The United Kingdom of Great Britain and Northern Ireland does not have Administrative 'Counties' as a ubiquitous level 2 administrative unit. Some places are Unitary Authorities (54 regions), others ...
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7 votes

Accessing WMS layers of UK coal mines?

It definitely works when you are zoomed in to a coal mining area beyond 1:70K. If you check the getcapabilities you can see the MaxScaleDenominator is set. I suspect the server is calculating that ...
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  • 75k
7 votes

Looking for DEM data of Brighton UK

geostore 25cm, 50cm, 1m, 2m LiDAR You will probably need to download a few tile to cover Brighton http://www.geostore.com/environment-agency/survey.html#/survey?grid=TQ20 OS Terrain - 50m Grid or 10m ...
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  • 1,016
6 votes
Accepted

Why are heights given at various points on roads?

The answer is quite simple: "Spot heights – shown as a number beside a dot – appear at strategic points, including along roads where they level out at the top or foot of a hill. These can be a ...
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  • 171
6 votes
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Accessing WMS layers of UK coal mines?

I think it has to do with zoomscale. This map http://mapapps2.bgs.ac.uk/coalauthority/home.html seems to use the same services. Checkboxes are greyed out till zoomed in enough.
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  • 3,511
6 votes
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Generating random lat/long coordinates

What you want to do is to generate a random set of numbers within the following approximated box: [Longitude, Latitude] [-10.8544921875, 49.82380908513249], [-10.8544921875, 59.478568831926395], ...
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5 votes
Accepted

Which equal-area projection to use for UK?

You could calculate ST_Area on a geography type. Since you have data with WGS84 (SRID=4326), you can add a simple geography cast, e.g. SELECT ST_Area(geom::geography) which will return area in m² on ...
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  • 39.8k
5 votes
Accepted

D3.js cannot render my geoJSON file

UPDATE: Your problem seems to be with your data. Here is a snippet of your file: }, "geometry": { "type": "Polygon", "coordinates": [ [ [ ...
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  • 17.2k
5 votes

Where can I find a shapefile of the UK electricity grid network?

**National Grid Transmission Network Shapefiles** Available data: Over Head line Tower Substation Site Gas Site Gas Pipe Cable Shapefiles are in the OSGB36 (Ordnance Survey National) projection.
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  • 48.5k
5 votes

Finding vector data for UK railway lines?

I'm not sure these sources have exactly what you are looking for, but they may be good sources: Ordnance Survey Open Data website. TFL Open Data API includes "Routes and lines (topology and ...
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  • 1,195
5 votes
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How to identify unknown coordinate system?

The Eastings in the geojson are Google mercator coordinates (EPSG:3857), but Northing is calculated froma virtual axis 12000000m North of the equator, positive southwards. You could use a custom CRS ...
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  • 75k
5 votes

UK Post Code Location References

Ordnance Survey provides some free open data on postcodes called 'Code-Point Open'. It is a csv of the post-code with a lat long attribute. I'd suggest getting hold of this data then extracting just ...
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  • 4,276
5 votes
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UK regional shape map with Scotland, Wales and Northern Ireland

What you really want are Eurostat NUTS Level 1 boundaries, which include UK regions and also the whole of Wales, Scotland and Northern Ireland. You can fetch the latest 2018 data from UK Office for ...
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  • 456
5 votes

Purchasing NDVI imagery for South Western England?

I don't think this is the answer you're looking for but with the specifications you describe, unless there is a subscription through which the farmers need to finance imagery purchase, it would ...
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  • 2,798
5 votes
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Using UK Government Data in QGIS?

UK Government data in general, and definitely in this case, is stored using the Ordnance Survey's national grid coordinates. So you need to ask QGIS to set the projection of the layers to EPSG:27700. ...
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  • 75k
5 votes
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Seeking vector data for wind speed and operating turbines in UK?

When you import a shapefile (or zipped shapefile) into QGis is just displays the data using a random color. So you need to style it and select a attribute to colour it in by and how you'd like the ...
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  • 75k
5 votes

Confusion on Northing and Easting values in UK

If you have coordinates in the UK they are more likely to be in OSGB (EPSG:27700) rather than a UTM zone (since the Greenwich meridian is a join between them).
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  • 75k
4 votes

Seeking GeoJSON data for all counties of UK?

A simple approach is to make one if you can't find one. Get the free OrdnanceSurvey OpenData Boundaries dataset. This contains several boundary datasets in either Shapefile or MapInfo formats. ...
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4 votes
Accepted

UK coastline shapefile?

For the free Ordnance Survey data, go to https://www.ordnancesurvey.co.uk/opendatadownload/products.html. Click on the big button at the top labelled "Order Now". On the new page, scroll down until ...
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4 votes
Accepted

Merging ShapeFiles with QGIS for UK counties

You have to reproject one layer to another name and the CRS of the other before you can merge them. Merging only works if both files look well-placed with On-the-fly-reprojectionturned OFF.
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  • 75k
4 votes
Accepted

Source for multipolygon data?

OSM data springs to mind. You can get the data you need from OSM or bundles from Geofabrik (among other providers). If you use the tool osm2pgsql to import to PostGIS, there is a switch that will ...
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4 votes

Looking for DEM data of Brighton UK

Just to add to the nice answer from @Clubdebambos, assuming you are studying at a UK-based university, you may also have access to the Edina Digimap as this also contains OS Terrain data where you can ...
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  • 72.4k
4 votes

Projection parameters different for British National Grid between QGIS and ArcMap?

For most of the world EPSG:27700 is defined as: PROJCS["OSGB 1936 / British National Grid",GEOGCS["OSGB 1936",DATUM["OSGB_1936",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],...
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  • 75k
4 votes
Accepted

Location of UK Town to Postal Sector database or .csv

Try the Ordnance Survey Code Point Open. It has administrative district code and administrative ward code attributes you can join to ons codes to get the relevant information.
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4 votes

What are last four columns in Royal Mail CSV PAF data used for?

I contacted Royal Mail about this, the additional fields (in order are): Address Key Organisation Key Number of Households Locality Key More information about Address and Organisation Keys can be ...
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  • 141
4 votes

Distances between points British National Grid (BNG)

Using NUTS-3 centroids with the Near (Analysis) tool, the geodetic distance between the Shetland Islands and Jersey was calculated to be 1191878.03 meters. Using a Euclidean distance after projecting ...
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  • 18.9k
4 votes
Accepted

Determining CRS for contoured road map of England and Wales

This one worked for me: OSGB 1936 / British National Grid EPSG:2770 To answer your questions: "Can you advise me something about finding CRS in general?" You would start with looking at ...
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