Coming soon: New Roam for Digimap

As mentioned at Geoforum earlier this year, we’re currently working hard on a new version of Digimap Roam. The new-look application will bring Digimap Roam, the online mapping tool in the Digimap family, bang up to date with the latest web technologies available. Whilst the functionality will remain the same, the look and feel of the […]

Digimap dataset updates: March and April 2016

Lots of datasets were updated in March and April this year, with the majority of updates being to data in the Ordnance Survey Collection of Digimap. We also updated the vector marine data in Marine Roam so that it is now displaying the same version that is available for download through Marine Download; the Borehole data in Geology Download has also been updated to the latest version.

The updates include the latest versions of the 1:50,000 and 1:25,000 Colour Raster products which show the new height of Ben Nevis. The mountain, which is the tallest in Britain, was recently resurveyed by OS and found to be one metre taller than the measurements taken during the previous survey in 1949. If you’re interested in finding out more about the resurvey, and why two different heights are shown for the summit on the maps, the Ordnance Survey have published a blog post which explains the process in detail.

Ben Nevis showing new height

The tables below detail all the datasets that were updated recently in each Collection along with the publication dates of each one.

OS Data Download:

Product Name OS Publication Date
1:25,000 Colour Raster March 2016
1:50,000 Colour Raster March 2016
MasterMap Topography Layer January 2016
VectorMap Local January 2016
VectorMap Local Raster January 2016
VectorMap District March 2016
VectorMap District Raster March 2016
Terrain 5 Contours January 2016
Terrain 5 DTM January 2016
Code-Point with Polygons January 2016 and April 2016
Code-Point February 2016
Code-Point Open February 2016
Points of Interest March 2016
Open Names March 2016
MiniScale January 2016
* OS Street View April 2016
* Meridian 2 July 2015 and January 2016
* Strategi January 2016


OS Roam:

Product Name OS Publication Date
1:25,000 Colour Raster March 2016
1:50,000 Colour Raster March 2016
MasterMap Topography Layer January 2016
VectorMap Local January 2016
VectorMap Local Raster January 2016
VectorMap District Raster March 2016
Terrain 50 Contours July 2015
 MiniScale January 2016
* Meridian 2 January 2016
* Strategi January 2016

* Note: these are the last updates to OS Street View, Merdian 2 and Strategi that will be supplied by Ordnance Survey who have announced that they are retiring these products. Whilst the data will still be available to download through Digimap, these products will no longer be updated to reflect changes in the real world.

The data product updates help page is kept up to date with all dataset updates in the Ordnance Survey collection.


Marine Roam:

As well as all the changes in the Ordnance Survey collection, we have also updated the vector data in Marine Roam from Seazone Solutions. This brings the data up to date with the latest version of the product from SeaZone Solutions, which is also available for download through Marine Download.

Product Name SeaZone Publication Date
HydroSpatial One August 2015

HydroSpatial One showing Leith harbour


Geology Download:

Finally the Borehole data available in Geology Download has also been updated to the latest version available from the British Geological Survey.

Product Name BGS Publication Date
Onshore Borehole Index January 2016


If you have any questions about the dataset updates or Digimap please contact us:

  • Phone: 0131 650 3302
  • Email:

Digimap Data Updates: December 2015

A number of key datatsets have been updated in Digimap this December in several of the collections.

Of particular note are the updates to the Marine collection. The Charted Raster product from SeaZone is now available in two versions: ‘Full Marginalia’ and ‘No Marginalia’. Users can select the version after adding the product to the basket in Marine Download.

Choose Marginalia in the Basket

The ‘No Marginalia’ version has all extra information round the map (e.g. north arrows, scale bars, inset maps etc.) removed and replaced with transparent areas. This makes it ideal for use in GIS software allowing you to pan across adjacent charts without this information obscuring the map data.

Marine chart with marginalia  Marine chart with marginalia removed

Furthermore the Charted Raster .tif files are now supplied with .tab files for accurate positioning in MapInfo.

The tables below lists all the datasets that have been updated in each collection together with the publishing date for each one.

Ordnance Survey Data Download

Product Name OS Published Date
Boundary-Line October 2015

Geology Download

Product Name BGS Published Date
  • January 2015,
  • April 2015,
  • July 2015,
  • October 2015

Marine Download

Product Name SeaZone Published Date
HydroSpatial One August 2015
Charted Raster (all scales) August 2015


If you have any questions about the dataset updates or Digimap please contact us:

  • Phone: 0131 650 3302
  • Email:


Chart Roam to replace Marine Maps

In January 2016, the Marine Maps application available through Marine Digimap will be replaced by a new application called Chart Roam.ChartRoam-overview

As it’s name suggests, the new application will offer the same Chart data currently available through Marine Maps.  SeaZone (the data supplier) now call this dataset HydroView Charts.  They were previously referred to as the Charted Raster data.

Chart Roam will operate in the same way as all other Roam clients available, offering slippy maps, 12 fixed scale map views, annotation and measurement tools, as well printing in multiple file formats and sizes up to A0.

A date for release will be advertised in the new year.

If you have any questions, please do not hesitate to contact EDINA on



Digimap 2012-13 Print Maps & Data worth nearly £40 Million

Money and Calculator

Picture courtesy of Images_Of_Money

As part of our work to demonstrate the impact of Digimap, EDINA has calculated the commercial value of all the data downloaded and maps created for printing. We calculated the values per institution for the period August 2012 to May 2013 then totalled them; this came to approximately £39 .5 million.  This estimate is a conservative one as we reduce the quantity of data downloaded by 60% to account for duplication. When all the maps printed and data downloaded were included in the calculation (i.e assuming users would continue to take their own data and maps, and not share them) the value rises to nearly £71 million.

Digimap Data and Print map values from 2010 to 2013

Click to enlarge image.

We know that some data is downloaded multiple times within an institution, for example by the students in a class exercise or for specific study sites. We found that only 40% of the data taken from Digimap over a period of time was unique to an average institution. We believe that if institutions were paying commercial rates for their data it would be more likely that they would try to download it once and then circulate it to those who need it; for this reason the value calculations only include 40% of the total. However, there is considerable variation between institutions as to how much is unique; those that do more research or are smaller in size tend to have a greater proportion of unique downloads, so we have included the 100% figure as a ceiling value.

In total, over the past three academic years over £190 million (£100 million at 40%) worth of print maps and data has been served up from Digimap to subscribing institutions.

How the Costs are Calculated

Porportions of Digimap Collections Values

Click to enlarge image.

The costs used in our calculations for the data downloaded come from the data suppliers, and include any relevant multipliers or discounts made publicly available on their websites.

The data values are calculated on a per product / per institution basis, with the data preparation and licensing charges assigned only once per product, per institution. Many of the data collections are licensed based on the number of users who have access to the data; with increasing numbers of users a multiplier is applied to a base cost.  We applied the relevant multipliers based on the number of active registered users for each collection at an institution. SeaZone data is provided commercially through a third party website; we picked the closest match possible to the data we provide though this does have a lower cost, again making the estimates conservative.

We capped data values at the price it would cost to take national coverage of each product, making it impossible to charge more for any one product than it would to supply the entire dataset for use by the whole institution.

The values for the print maps (including saved images in Carto and Ancient Roam) are calculated by finding the cheapest available commercial map prints from websites such as eMapsite, NLS and FiND. These values are updated every time we calculate the values.

What We Didn’t Include

Digimap Screen Maps Made 2010 to 2013

Click to enlarge image.

No monetary values were assigned to the millions of screen maps that are produced from Digimap; we couldn’t find a comparable site! Also, the value calculated doesn’t take into account any of the support materials, training courses and help desk facilities that are all part of the Digimap service.

No OpenData downloads or maps created from OpenData are included in the calculation, despite the advantages of producing them from Digimap over other websites.

However the biggest saving that isn’t included in these value calculations is your time. We only charged the data supplier’s preparation and licensing costs once per product or order, in line with each companies policy. In reality there would be many orders occurring throughout an academic year as new research questions are raised. This all costs time, time which the data suppliers will charge for or that institutional staff would have to take to put in requests for data or to create and manage a repository for spatial data.

Digimap does all this work for its subscribers along with providing a high quality mapping interface, 24 hour access to expensive high quality data and maps.

Over the coming weeks we will be sending out each institution’s values to Digimap site representatives. If you are interested in the value of the maps and data your institution has been using then get in touch with them.  If you are unsure who your site representative is then please contact us:

  • email:
  • phone: 0131 650 3302


Using Marine Roam to find interesting things beyond topography

Marine Roam is a fantastic service which provides access to SeaZone HydroSpatial data for the waters around Great Britain.  There are many applications for the data and the expanding offshore renewables sector, and associated research around it, immediately springs to mind.  However, did you know that you can use Marine Roam for some historical sleuthing?

70 years ago today, 27th march 1943,  HMS Dasher was sailing up the Firth of Clyde heading for Greenock.  HMS Dasher had been converted into an aircraft carrier and was home to 8 Swordfish and 2 Sea Hurricanes. The planes were being refuelled following landing practice when there was a series of massive explosions.  The ensuing fire could not be contained and the ship was abandoned. It sank just 6 minutes after the first explosion. While 149 seamen were recovered, 379 lost their lives.

Wrecks are marked in the HydroSpatial data and can be queried in Marine Roam.  It is a little tricky to find the wreck of HMS Dasher.  I knew it was situated in the Firth of Clyde, mid-way between Arran and the mainland, about 5 miles south of Little Cumbrae. However, the only wreck I could find was that of the Antares, a fishing trawler which sank in 1990 after its nets were apparently snagged by a submarine.  After a bit of hunting I found some strange boat shaped features, seemingly related to military wrecks which for the most part appear to have been sunk during exercises.  One of these marks the resting place of HMS Dasher. Below is a screenshot of the attribute information held in the HydroSpatial data about her.


Wreck of HMS Dasher in Marine Roam

You can log into Marine Roam and use the Info Tool to explore features on the map. Alternatively, you can download the data through Marine Download and load it into a GIS for further exploration.

So what other famous ship wrecks can you find in Marine Roam?  Why not post a comment with the coordinates of your favorite sea-floor find.

Much of the background information used in this blog post was taken from the fantastically detailed records available through the Royal Commission on the Ancient and Historical Monuments of Scotland website.