Aug 092018
 

We are very pleased to announce the release of Global Roam. This builds on the release of Global Download last week and allows users to browse global data in the familiar, user friendly, Roam online mapping interface. Global Roam is very much a work in progress and you will find that some of the standard functions are not yet available, but we were keen to get something out to users as soon as possible and we’d love to know what you think of it and where you think it can be improved.

Global Roam showing Central Park in Manhattan

Global Roam showing Central Park in Manhattan

As mentioned in our previous blog post, Global Digimap is available as a beta service as we look to build a suite of datasets, themes and formats that best meets the needs of our users. We will continue to develop the Global Digimap service over the coming months, shaped by the feedback that you give.

Global Roam delivers the familiar Roam interface with detailed global data sourced from Natural Earth and OpenStreetMap. The application includes the usual annotation tools (recently renamed ‘drawing tools’) along with global search functionality. The most zoomed out maps use Natural Earth data which changes to OpenStreetMap as you zoom in. Future plans include:

  • adding additional data from the rich OpenStreetMap dataset including point features
  • integrating the print interface to allow high quality printed maps up to A0
  • addition of the feature information tool allowing users to view the attributes of selected features
  • creating alternative grey-scale and colour basemap styles
  • inclusion of the measurement tools [update: these were added 30/08/2018]
  • customisation of the map through the Map Content panel

It’s worth mentioning that maps saved in Global Roam are not compatible with other Roam clients and vice versa as they use a different projection system. [update: this was resolved 30/08/2018]

Access to Global Digimap

During this development phase, and in return for engagement with the development process, the service will be free of charge for institutions that subscribe to another Digimap Collection. We would like to know what you like and don’t like about it, what features and what new data you would like to see added.  We can’t promise to include everything but the more we hear from you the better able we are to prioritise different requirements and create the best possible service.

If you would like access to Global Digimap please ask your local Digimap Site Representative to request access through the Digimap helpdesk and we will ensure your institution is switched on.

Get in touch

It is never too early to let us know what else you would like to see, we are very keen to hear your ideas of how we can make something really useful; our contact details are below:

  • Email: edina@ed.ac.uk [Subject: Global Digimap]
  • Phone: 0131 650 3302
 August 9, 2018  Posted by at 3:12 pm Data Changes & Additions, Digimap News, New Features, Of Interest Tagged with: , , ,  Comments Off on Global Roam now available
Aug 032018
 

It is the start of a new academic year and we have introduced few new things for you to see in Digimap:

A New Home Page

Digimap has a new home page! It may look a little different, but it works in exactly the same way as the previous version. Responding to feedback from the community we have provided more detail about each collection in the left hand panel, including preview images of the data. Roam and Data Download are easy to find under each Collection’s tab.

Global Digimap

We are very proud to announce the launch of our new Global Digimap collection.  This is a new service, developed in response to requests for international data.  Initially Global Digimap will offer OpenStreetMap data but our objective is to develop the collection in partnership with the user community, so user feedback will shape both the content and functionality.  In return for this engagement, access to Global Digimap will be free of charge until July 2019.

We have asked all the Digimap Site Reps if they would like access to the service, if you can’t access Global Download then speak to your site rep about getting your institution switched on: List of Digimap Site Reps

There is a blog post with more detail about the Global Digimap Service.

Upgrade for Data Download

Following a lengthy beta phase, we have promoted the beta version of Data Download to a production service and this is now the default Data Download application for all Collections.  Ever mindful that work flows, and teaching and promotion materials may need updating as a result, we will continue to run the previous versions of both Roam and Data Download until the end of the year.  All saved maps and data download histories are available in both new and old versions.

New Licences

Digimap is now operating under new licences for 2018/19 so all registered users are required to accept the new terms.  This is a simple process which happens when you first log in. No re-registration is required and all saved maps and data download histories remain available as before.

 August 3, 2018  Posted by at 11:50 am Data Changes & Additions, Digimap News, New Features, Of Interest Tagged with: , ,  Comments Off on Digimap Update for the 2018-19 Academic Year
May 172018
 

You can now search and download the imagery data from Aerial Digimap by the year it was flown.

This allows you to be sure that you are downloading only the latest data, but it also allows you to download multiple images for the same location taken on different dates. We currently have data from 1998 through to 2016, with more English and Welsh images coming for 2016. When you are in Aerial Download you can see the extents of each year using the Show Availability Grid tool on the right side of the map as shown in the image above.

There is a table below detailing how many 1x1km images there are for each year, with the majority coming from 2013 to 2016, but some of the older images will be very useful to compare to the newer ones where they overlap:

Year Number of Images
1998 165
2000 855
2001 891
2002 75
2003 11
2005 423
2006 4,620
2007 7,799
2008 5,757
2009 25,066
2010 35,607
2011 18,642
2012 16,619
2013 54,534
2014 71,404
2015 81,378
2016 18,769

 

Here are two images of Lerwick taken 8 years apart:

Lerwick 2008 from Aerial Digimap

Lerwick 2008 from Aerial Digimap.

Lerwick 2016 from Aerial Digimap

Lerwick 2016 from Aerial Digimap.

As you can see there has been construction in the West of the area with new buildings and car parks added.

We hope that you find the ability to make this sort of comparison useful for your research. If you have any questions about this or any other aspects of the Digimap service then please don’t hesitate to contact us.

  • Email: edina@ed.ac.uk
  • Phone: 0131 650 3302
 May 17, 2018  Posted by at 10:32 am Data Changes & Additions, Digimap News, New Features, Of Interest Tagged with: , ,  Comments Off on Aerial Imagery Data available by Year
Mar 302018
 
new building height coverage

Building Height Coverage

Ordnance Survey have released nearly 5000 extra 5km squares of building height data, with the total coverage increasing from 2578 to 7302. Each square has at least one building with height attributes added, with most fully covered. We have added this data to Digimap’s Data Download facility allowing you easy access to the data you need.

The Building Heights data is available from Data Download in a range of formats created especially for Digimap users. The most straightforward to use are DWG, File Geodatabase and KML which can be viewed directly in CAD, GIS and Google Earth respectively. You can also take the data as a CSV list that can be joined to the attribute table of any existing MasterMap Building data you have, using the TOID identifier. This means that you don’t have to recreate your project work with new data if you have already spent a lot of time working on it; as long as the buildings still have a TOID in their attribute data you can add the height information to it.

The Building Heights data is ideal for anyone working with the MasterMap data in 3D and has a range of applications in Architecture, Landscape Architecture, Environmental Modelling, Archaeological Reconstructions and many more different disciplines. Here are a couple of examples:

OS MasterMap Topography Layer Building Height Attribute data on top of OS Terrain 5 Contours

OS MasterMap Topography Layer Building Height Attribute data on top of OS Terrain 5 Contours

 

3D model using Aerial Imagery, OS Terrain 5 DTM and MasterMap Building Height Attribute

3D model using Aerial Imagery, OS Terrain 5 DTM and MasterMap Building Heights Data

 

 March 30, 2018  Posted by at 10:43 am Data Changes & Additions, Digimap News, Of Interest Tagged with: , ,  Comments Off on OS MasterMap Building Height Data gets significant update
Mar 292018
 

The Points of Interest (PoI) data is great for research and you can make fantastic looking maps too as we have been showcasing on our twitter account. You have certainly been making the most of it too, with 16,877 PoI downloads being made since May 2015. Here are 3 dot density maps we made to show a single class of PoI data:

Points of Interest: Camping and Caravanning Dot Density mapPoints of Interest: Cattle Grids Dot Density mapPoints of Interest: Allotments Dot Density Map

However until today you had to take all the different classes of points for your specified area and you were limited to taking no more than 10,000 Km2 in a single download. As PoI data is split into 9 groups, 52 categories and over 600 classes (see the full scheme here), we though it would make things easier if we exposed some of this hierarchy in Digimap’s Data Download service.

You can now select one or more of the groups or categories to download, taking some of the data processing load off you and making your downloads more manageable. Being able to filter the features in your download by group or category means smaller downloads so we have also removed the limit on the area you can take; you can now take the whole country in one download if you want.

One note of caution though, the PoI data has around 4.5 million records and is over 1gb in size as a simple CSV file. So if you are taking national coverage you may want to only take one group or a few categories to minimise the amount of data you are dealing with.

To select a group or category of features simply add PoI data to your basket then use the drop down menu in the layers column to choose what you are interested in.

Points of Interest data in the digimap download basket

We hope that you find this change really improves the accessibility of the Points of Interest data, we look forward to seeing some of the interesting analyses and maps you produce!

 March 29, 2018  Posted by at 4:24 pm Data Changes & Additions, Digimap News, New Features Tagged with: , ,  Comments Off on Points of Interest now easier to download
Dec 212017
 
Night time aerial imagery of London Waterloo and the London Eye

Night time aerial imagery of London Waterloo and the London Eye

We recently made available, through the Digimap Lidar Collection, a wealth of Vertical Aerial Imagery data captured by the Environment Agency for England.  The Environment Agency has been capturing vertical aerial imagery since 2006 on a project by project basis, so the coverage is not continuous across England. Availability grids for each year of data are available in the Lidar Download application. Data is available in some locations for multiple dates where the location has been surveyed on more than one occasion.

Some of the imagery was captured at night time giving an insight in to the effects of urban light pollution.

Data format

The data is supplied in the raster ECW (enhance compressed wavelet) format, which should be readable by most modern GIS and image processing software.  The data is tiled and tile sizes range from 1km x 1km to 5km x 5km and the resolution of the data ranges from 10cm to 50cm. There are three types of imagery available:

  • True colour – red, green, blue (RGB)
  • Near Infra-Red (NIR)
  • 4-band (RGBN)
RGBN aerial imagery of Spurn Head in Humberside

RGBN aerial imagery of Spurn Head in Humberside

Access

Lidar download is available to all institutions that subscribe to Aerial Digimap, meaning that subscribing institutions now have access to another detailed aerial imagery dataset.

For information on subscribing to Aerial Digimap, please see the subscription page.

 

If you have any questions about the new data or Digimap please contact us:

  • Email: edina@ed.ac.uk
 December 21, 2017  Posted by at 3:50 pm Data Changes & Additions, Digimap News, Of Interest Tagged with: , , , , , , ,  Comments Off on Additional vertical aerial imagery for Digimap
Aug 012017
 
3D scene with Aerial imagery and Lidar

3D scene showing imagery with hillshading derived from the 50cm Lidar DSM. © Getmapping Plc, © Environment Agency copyright and/or database right 2016

We have now reached the end of the Lidar Digimap Preview. We hope that everyone who has used the service has found it a great way to access the Lidar data available. From now on the service will continue to be available to Digimap Users whose institution subscribes to the Aerial Digimap service.

Find out here if your institution subscribes

Lidar Point Cloud Forth Rail Bridge

Lidar Point Cloud Forth Rail Bridge. Crown copyright Scottish Government, SEPA and Scottish Water (2012).

Despite the addition of Lidar Digimap, Aerial Digimap subscription prices will not be increased for the 17/18 academic year. We will also be looking to add further datasets to Lidar Digimap over the next 12 months, these include:

  • Additional Point Cloud datasets ideal for use in CAD software for creating 3D models like this one of the Forth Rail Bridge
  • Photography; aerial images captured at the same time as the Lidar data

We’d also like to thank the hundreds of people who took the time to fill in our user feedback survey on Lidar Digimap, we have seen a huge range of uses for the data across a very broad range of disciplines. This feedback exercise has been very successful and we will be making the draw to see who has won the Amazon vouchers very soon. Keep watching the blog for the announcement in the coming weeks.

If you would like any more information about the Lidar or Aerial Digimap collections or details on how to subscribe then please do not hesitate to contact us:

  • Email: edina@ed.ac.uk

 

 August 1, 2017  Posted by at 10:58 am Data Changes & Additions, Digimap News, New Features, Service Availability Tagged with: ,  Comments Off on Lidar Digimap now included with Aerial Digimap
Jul 262017
 

Today we have made a huge amount of archived Land-Line data available to download from Digimap. You access the data through the Data Download application in the Digimap: Ordnance Survey Collection.  Land-Line was the pre-cursor to the OS MasterMap Topography Layer, and was the most detailed topographic mapping available from Ordnance Survey at the time. The archive released consists of annual snapshots of the whole of Great Britain from 1999 to 2006. This data will be vital for researchers who are undertaking longitudinal studies,  examining how areas have changed over time.

Land-Line.Plus showing Edinburgh's Quartermile area from 1999

Land-Line.Plus showing Edinburgh’s Quartermile area from 1999

OS MasterMap showing Edinburgh's Quartermile area from 2017

OS MasterMap showing Edinburgh’s Quartermile area from 2017

The data can be found in the Withdrawn Datasets category in the Data Download interface and is currently available in its original tiles and format.

Land-Line download location

Land-Line comes on 500m, 1km and 5km tiles depending on whether the area is Urban, Rural or Moorland.  It is supplied in National Transfer Format (NTF) which was the standard format of the time. We have put together a short help page that explains how to import this data in to common GIS and CAD applications which may be of use for anyone unfamiliar with this format of data.

IMPORTANT:  Between 2001 and 2006 Ordnance Survey carried it’s Positional Accuracy Improvement (PAI) programme. This means that there will be discrepancies in the positions of features on these maps and the OS MasterMap data: Read more on PAI

The Land-Line data that we have made available significantly bolsters the amount of detailed topographic data that is available for download from Digimap. The most detailed topographic mapping currently available from Digimap, OS MasterMap Topography Layer, is available for download going back to 2007. The addition of Land-Line data to Digimap means that users now have access to download the most detailed topographic mapping data for Great Britain going back a further eight years to 1999.

We hope you find this new addition of recent historic data useful, if you have any questions about the data please contact us:

  • Email: edina@ed.ac.uk
 July 26, 2017  Posted by at 12:16 pm Data Changes & Additions, Digimap News, Of Interest Tagged with: , ,  Comments Off on Huge Digimap Land-Line data archive (1999-2006) released
Jun 062017
 

LidarToday we have launched our new Lidar Digimap Collection. The new Collection is available to preview for all Digmap users until the 31st of July 2017. Lidar data can be downloaded through the Lidar Download for use in GIS and CAD applications; there is no Lidar Roam application for viewing the data.

Lidar Point Cloud Forth Rail Bridge

Lidar Point Cloud Forth Rail Bridge. Crown copyright Scottish Government, SEPA and Scottish Water (2014).

The service allows you to download current and past Lidar data from the Environment Agency (EA), Natural Resources Wales (NRW) and Scottish Environmental Protection Agency (SEPA).

There is already a large amount of data available in the service but we are still processing some of the datasets. Once it has all been processed the service aims to have complete coverage of all the data available from these agencies, including the raw LAS point cloud data and Orthophotography captured during the flights (where available).

Lidar data is very useful when creating 3D terrains and models as can be seen from the images to the left and below. For creating 3D scenes such as the one below, it is very useful to use a Digital Surface Model (DSM) to create a surface and hillshading from which you can drape other data over, such as the imagery from Aerial Digimap in this example:

3D scene with Aerial imagery and Lidar

3D scene showing imagery with hillshading derived from the 50cm Lidar DSM. © Getmapping Plc, © Environment Agency copyright and/or database right 2015. All rights reserved.

The following datasets are available through Lidar Digimap at present:

Dataset Availability and publication date
Digital Terrain Model and Digital Surface Model (DTM and DSM) England

  • 25cm: 2009-2015
  • 50cm: 2009-2015
  • 1m: 2010-2016
  • 2m: 2010-2015

Scotland

  • Phase 1 (1m): 2011-2012
  • Phase 2 (1m): 2013-2014

Wales

  • 25cm: 2015
  • 50cm: 2009-2016
  • 1m: 2010-2016
  • 2m: 2010-2016
Point Cloud Scotland

  • Phase 1: 2011-2012
  • Phase 2: 2013-2014

 

We are currently processing the following datasets and hope to have them available in the service shortly:

Dataset Availability and publication date
Digital Terrain Model and Digital Surface Model (DTM and DSM) England

  • Historical data: 1998-2015

Scotland

  • 50cm
  • 2m
Point Cloud England

  • 2005-2016
Orthophotographs England

  • 2006-2015

 

The data was collected for flood risk analysis and modelling and primarily follows water courses and coastal habitats. The data covers approximately 72% of England, 20% of Scotland and 70% of Wales. The image below shows the 1m resolution DTM coverage in England:

1m DTM Lidar coverage in England

1m DTM Lidar coverage in England [click to expand]

We are also very keen to know what you have been doing with Lidar data in the past or what you plan to do with the Lidar data you are going to get from the new service. To find out this information from you we have put a survey in the interface and you have the chance to win a £20 Amazon just for filling it in!

Digimap Lidar Survey

Lidar Options

We hope you like using the new Collection, if you have any questions about the data please contact us:

  • Email: edina@ed.ac.uk
 June 6, 2017  Posted by at 3:44 pm Data Changes & Additions, Digimap News, New Features Tagged with: , ,  Comments Off on Lidar Digimap: new collection of data available now!
May 032017
 
Canworthy solar farm

Canworthy Solar Farm, which became operational in 2014 and covers approximately 55 hectares (~67 football fields)

Aerial Digimap updates

March/April 2017 has been a busy couple of months for the Data Team who have been working hard to process a huge area of updated aerial imagery data from the data supplier, Getmapping. The update consists of around 80,000 individual 1km tiles, all captured in 2015, which is approximately 30% of the country.

Prior to the update just over 50% of the data was from 2013 or later; after the update 77% of the data is from 2013 or later.

This means that more up to date imagery is now available for viewing and download through Aerial Digimap for a significant proportion of the country.

The map below shows the approximate distribution of the updated data.

2015 update to Aerial Digimap data

Click on map to view larger version

This is the first update we have received from Getmapping, but we are expecting another update later this year containing imagery captured in 2016.

Cruise liner in Firth of Forth

Cruise liner in the Firth of Forth

We will add this to the service as quickly as we can to ensure that the most up to date data is always available to Aerial Digimap users. In order to make it clear where the data has been updated, we will add an Availability/Reference Grid to Aerial Download so that users can easily identify if the imagery has been updated in their study area(s). This grid will be added to the system in the next couple of weeks.

We are still investigating the best way to make previous versions of the data available, but in the mean time only the most recent data is available through Aerial Roam and Aerial Download.

 

 

Webinar resources

We recently ran a webinar highlighting the data and showcasing a number of potential uses for the imagery. The webinar was recorded in full and is available on our YouTube channel. The slides used during the webinar and a transcript of all questions and answers are available on our help page.

3D model using Aerial Imagery, OS Terrain 5 DTM and MasterMap Building Height Attribute

3D model using Aerial Imagery, OS Terrain 5 DTM and MasterMap Building Height Attribute

Data information

The aerial imagery data in the service is 25cm resolution vertical aerial orthophotography supplied by Getmapping PLC, and is the most detailed aerial imagery available for the whole of Great Britain. As well as being a really interesting dataset the imagery also has a number of practical uses across a wide range of disciplines from urban planning and 3D modelling to land use and archaeological studies.

Subscribing

To see if your institution already subscribes to Aerial Digimap, please see our subscribing institutions help page. Information on how to subscribe to the new service is available on the Aerial Digimap Subscription page.

If you have any questions about the service please consult the dedicated Aerial Digimap help pages or contact the Digimap support team using the details below.

 

Dataset updates in Ordnance Survey Digimap

OS Data Download:

Product Name OS Publication Date
Code-Point February 2017
1:25,000 Colour Raster March 2017
1:50,000 Colour Raster March 2017
Points of Interest March 2017

 

OS Roam:

Product Name OS Publication Date
1:25,000 Colour Raster March 2017

 

The OS data update page is kept up to date with all dataset updates in the collections.

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

  • Phone: 0131 650 3302
  • Email: edina@ed.ac.uk
 May 3, 2017  Posted by at 10:00 am Data Changes & Additions, Digimap News, Of Interest Tagged with: , , , , , , , , ,  Comments Off on Massive area of updated Aerial Imagery and other Digimap dataset updates in March/April 2017