|Provider||National Biodiversity Network Trust|
|Title||Watsonian Vice Counties|
|Description||Watsonian Vice Counties version 1.0 June 2003. First test release for England, Scotland and Wales|
|Purpose of data capture||The purpose of the digitisation project was to update and finalise the Watsonian Vice County boundaries first digitised at 1:10,000 scale in 2003 to mark the 150th Anniversary of the first publication of the vice-county system for Great Britain.|
|Methods of data capture||Digitisation of Watsonian Vice County boundaries began in 2002 with a pilot project to develop a methodology for the capture of the vice-county boundaries at a hitherto unattempted degree of accuracy.
Following a successful outcome to the pilot, a full digitisation project was undertaken in 2003, funded by Defra, Scottish Natural Heritage and the NBN Trust. The project managed by Charles Copp was carried out by The Landmark Information Group, with the digitisation work carried out in India.
The digitisation project depended on a set of about 420 one-inch to one-mile ordnance survey maps marked with the vice county boundaries (in red crayon) by J.E. Dandy in 1947. These have been the definitive source up until the current 1:10,000 scale digitisation. The original set of Dandy Maps were scanned by the Natural History Museum in 2002/2003 and the subsequent images were geo-referenced by Landmark to enable their incorporation into the boundary capture work.
In 2010 JNCC updated the digitised Vice County boundaries to correct two digitisation errors occurring at Blakeney Point, Norfolk and Ailsa Craig, Ayrshire. The names of the Vice Counties were updated to allow for improved searching, especially for Vice Counties where more than one name has been used.
|Geographical coverage||Great Britain|
|View in interactive map||Map link|
|Temporal coverage||Not available|
|Data quality||Not available|
|Additional information||The Watsonian Vice County Boundaries (Mean Low Water, 3-mile and 12 mile limits for the coastal vice-counties) are available free as digital boundaries for use within GIS systems. They may be downloaded from the NBN website|
|Access constraints||Not available|
|Use constraints||Not available|