Rural Payments Agency usage of Ordnance Survey data
1. Rural Payments Agency (RPA) usage of Ordnance Survey data Rupert Waite – RPA Geographic Information Services Peat Allan – Ordnance Survey
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5. Change Intelligence - Re-active versus Pro-active Inspection (Physical, Remote Sensed) Customer (RLE1) Scheme (Lit/RD/FC) RLR MasterMap (one-off data refresh) MasterMap (Change Only Update) Points of interest data Aerial Photography (imagery analysis) Systematic “Pro-active” Updating BAU “Re-active” Updating Remote Sensing (imagery analysis on non-controlled)
6. RPA’s Route-map for Proactive Land Change Detection. Geo-Processes Routine/Cyclical Data Quality checks Pro-active Detection Improved Controls More current & accurate GI Source Data Requirement Engage with data suppliers, OS and Defra over currency Enhanced Tools System development & software Implement Data exchange to and from OS Action Outcome New business Processes Improved RLR accuracy Accurate SPS payments COU processes for Mastermap & Aerial Photography Improved MI on compliance Work Stream 1 Work Stream 2 Work Stream 3
7. Conceptual Design – Systematic “Proactive” Updating Sources of information Mastermap COU RPA collected data RLR Update Multi-step process to apply COU, to thematic dynamic thematic layers. Geo Information Data Integration – Geo processes Points of Interest data Aerial Photography COU Remote Sensing
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9. What kind of OS Mastermap change will RPA see through COU? Current RLR The application of this change to the RLR would result in a reduction in field size from 3.11ha to 2.71ha for the field SP0653 0973 NB: This field has been claimed this year at 2.81ha New building and fence added 18/06/2008 RLR & COU
12. Parallel Work streams for RPA Land Change Detection Imagery (RS & AP) OS MasterMap Source of change only update Change detection using Photogrammetry Change detection using database intersect and TOID analysis Candidate list of parcels to digitise. 2633 TQ7840 7840 TQ3845 4505 TQ3830 2874 SU 2846 3648 SU2749
OS MasterMap is a database in that each feature is captured as a record in the data, and is given a unique identifier known as a TOID ® . This means that any feature is easily and consistently accessed and identified, making any changes to the data easier to apply. It also means the TOID can be used as a link (or key) to other data – for example, Ineligible features for SPS. With these unique identifiers (database keys), the data is ‘database ready’ – that is, can be loaded into a database system. That, in turn, means the data can be stored once in an enterprise’s information systems and shared by many applications in the organisation – eliminating the problems that would otherwise exist in ensuring data is uniformly consistent.
Photogrammetry is the science of measuring objects from photographs