Publication year: 2010 Source: ISPRS Journal of Photogrammetry and Remote Sensing, In Press, Corrected Proof, Available online 18 November 2010 Richard, Lucas , Katie, Medcalf , Alan, Brown , Peter, Bunting , Johanna, Breyer , … The Phase 1 Survey is the most comprehensive and widely used national level map of semi-natural habitats in Wales. However, the survey was based largely on field survey and was conducted over several decades, before being completed in 1997.

Continued here:
Updating the Phase 1 habitat map of Wales, UK, using satellite sensor data

เรื่่องที่เกี่ยวข้องกับเรื่องนี้