Spatial data harmonization

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Presentation describe first test on Zemgale Planning Region with INSPIRE data harmonisation

Presentation describe first test on Zemgale Planning Region with INSPIRE data harmonisation

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  • 1. Spatial DataHarmonization
  • 2. DEFINITION● Data harmonisation – providing access to spatial data through network services in a representation that allows for combining it with other harmonised data in a coherent way by using a common set of data product specifications
  • 3. DEFINITION● Harmonised data product specifications – set of data product specifications that support the provision of access to interoperable spatial data through spatial data services in a representation that allows for combining it with other interoperable spatial data in a coherent way
  • 4. DATA INTEROPERABILITY COMPONENTS
  • 5. HARMONIZATION Source data model Target data model Zemgale urban CORINE land planing cover (specific data model) Geometry Reclassification HARMONIZATION
  • 6. HARMONIZATION STEPS● Definition of reclassification rules● Data reclassification● Union of touching geometries in same class● Transformation from multipolygon to polygons
  • 7. HARMONIZATION STEPS IN● Definition of reclassification rules → Create mapping table● Data reclassification → SQL JOIN using mapping table● Union of touching geometries in same class → Spatial aggregate function Union● Transformation from multipolygon to polygons → Spatial function dump for converting multipolygon to polygon
  • 8. ZEMGALE DATA MODELAtribute Field Explanation TypeVEIDS Planed land use type (see possible values down) Text 50INDEKSS Area with speciffic restrictions Text 10PLATIBA Area(m2) Long IntegerTER_VIEN territorial unit Text 50ADM_TER administrative area Text 50LAYER Layer number in CAD systems Text 50PIEZIMES notes Text 100
  • 9. LAND COVER DATA MODEL CORINE land cover
  • 10. RECLASSIFICATION RULES ZEMGALE CLASSIFICATION → CORINE NOMENCLATURE1 DzM Low-rise residential dwellings → 11 Urban fabric2 DzV Multi-residential dwellings → 11 Urban fabric3 P Public Building → 11 Urban fabric4 RR Production facilities and warehouses → 121 Industrial or commercial units5 RD Mining area → 131 Mineral extraction sites6 T Technical Building → 12 Industrial, commercial...7 Ū Waters → 5 Water bodies8 M Forests → 31 Forests9 ZĪ Outstanding foliage sites No corresponding class10 ZC Other groomed greenery space → 141 Green urban areas11 L Rural Land → 2 Agriculture areas12 No data No corresponding class
  • 11. RECLASSIFICATION QUERY
  • 12. SOURCE & TARGET DATA SETS
  • 13. TARGET DATA SET