OS Terrain 50 contours (10m contours) for Great Britain (England, Scotland and Wales)
It is supplied both as a set of 50m gridded digital terrain model (OS
Terrain 50 grid) and 10m contours and spot heights (OS Terrain 50
Notice: OS Terrain 50 contours and OS Terrain 50 grid are now available as of 8th July 2013.
Tip: Opt for the OS ...
The Ordnance Survey have Landform Profile and Landform Panorama that were based on their contour data, but it is not fantastic quality, and it is based on very old data. But it is now free to download, so if you just need a dataset to play with, it's a good choice.
I've used GetMapping's NEXTMap Britain 2 lidar data, and it is of generally very good quality,...
We've recently released reconstructed postcode boundaries in shapefile format for UK postcode areas, districts and sectors (reconstructed from unit postcode geocodes using Voronoi etc). They are free to use. Obviously the reconstruction is approximate and may not be suitable for all purposes.
They are available at http://www.opendoorlogistics.com/data.
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 are Metropolitan Boroughs within Metropolitan Counties (36), so just traditional counties will have numerous gaps. What you need is Administrative level 2 ...
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 in the internal projection of the data which is EPSG:27700 (again I'm guessing but it probably is) so if you are viewing in EPSG:4326 (as you are) then you seem ...
geostore 25cm, 50cm, 1m, 2m LiDAR
You will probably need to download a few tile to cover Brighton
OS Terrain - 50m Grid or 10m Contours
USGS SRTM 30m
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 differing top-levels. The layer GBR_adm0 contains a single polygon of the UK:
If you wish, you can convert this to a line shapefile (I used QGIS 2.6):
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 useful guide where there aren't many contour height numbers."
I think you'll need to georeference the base image and then capture your vector layers manually drawing over it.
This seems like a similar proccess: http://geo.nls.uk/urbhist/guides_vectorlayerqgis.html but not exactly what you are looking for.
If you're unfamiliar with georeferencing this looks like a good guide as well: http://qgis.spatialthoughts....
Someone has done it using various royalty and copyright free sources of data - see http://random.dev.openstreetmap.org/postcodes/. In my view the best is the Code-Point Opendata as it comes straight from Royal Mail. I don't think it's quite the same as the actual Royal Mail files but it's probably accurate enough. The files don't seem to be available so you ...
Your problem seems to be with your data. Here is a snippet of your file:
If I'm not mistaken, those ...
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.
which will return area in m² on a curved surface (sphereoid by default). This should be pretty close to the true surface area, without requiring any projection.
It would be interesting to ...
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 geographical)"
GTFS Data Exchange has information on a large number of rail agencies.
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 like this:
+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=-12000000 +k=1.0 +units=m +nadgrids=@null +wktext +axis=esu +no_defs
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 the post-codes you're interested in.
Information on the layer can be found here, and can be downloaded from here. Just need to fill in a form and they send ...
What you want to do is to generate a random set of numbers within the following approximated box:
Source for these points is https://gist.github.com/UsabilityEtc/6d2059bd4f0181a98d76 ...
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 probably be cheaper to buy mapping drones equipped with sensors like a rededge-m.
I have no knowledge of new satellite taskings for 0.5m resolution multispectral (...
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. All will then line up.
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 values mapped to colours.
The trick with the wind speed data is to read the documentation (boring though that is) - so looking in the included "Wind_attributes....
UK postcodes don't cover polygons. They cover a set of individual delivery points which are not necessarily contiguous.
It is certainly possible, given the co-ordinates for these delivery points, to describe a polygon such that all the co-ordinates are within that polygon. However, such a polygon would not be a unique solution - there would be many polygons ...
Having loaded the data into QGIS using 'Add Delimited Text Layer' I think the easy way would be to save the layer as a shapefile and then import this to PostGIS using Spit or the DB Manager.
Or am I missing something?
If you're publishing this for viewers in the UK, the “right” CRS is EPSG 27700 (or 7405, if you're working in 3D), as Vesanto has already said. The OSGB grid does distort the islands, making it hard to tell that Edinburgh is actually further west than Bristol. But UK folks are used to this, on the mainland, at least.
There isn't a single UTM zone that ...
If you want Free (but you will have to do a lot more pre-processing)
OS VectorMap™ District is available.
For commercial rotatable data you have 3 options.
Ordnance Survey - OS MasterMap® Integrated Transport Network™(ITN)
You can download the data from open street map .Use the Export button on top left option to download data.
Additionally if you are looking for an routing/ networking algorithm you can have a look at project OSRM which uses the above mentioned data for routing. hope it helps. good luck .