Spatial DataHarmonization
DEFINITION●   Data harmonisation – providing access to    spatial data through network services in a    representation tha...
DEFINITION●   Harmonised data product specifications –    set of data product specifications that support    the provision...
DATA INTEROPERABILITY COMPONENTS
HARMONIZATION   Source data model                           Target data model      Zemgale urban                          ...
HARMONIZATION STEPS●   Definition of reclassification rules●   Data reclassification●   Union of touching geometries in sa...
HARMONIZATION STEPS IN●   Definition of reclassification rules → Create    mapping table●   Data reclassification → SQL JO...
ZEMGALE DATA MODELAtribute Field   Explanation                                       TypeVEIDS            Planed land use ...
LAND COVER DATA MODEL              CORINE land cover
RECLASSIFICATION RULES              ZEMGALE CLASSIFICATION → CORINE NOMENCLATURE1 DzM Low-rise residential dwellings     →...
RECLASSIFICATION QUERY
SOURCE & TARGET DATA SETS
TARGET DATA SET
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Spatial data harmonization

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

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Spatial data harmonization

  1. 1. Spatial DataHarmonization
  2. 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. 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. 4. DATA INTEROPERABILITY COMPONENTS
  5. 5. HARMONIZATION Source data model Target data model Zemgale urban CORINE land planing cover (specific data model) Geometry Reclassification HARMONIZATION
  6. 6. HARMONIZATION STEPS● Definition of reclassification rules● Data reclassification● Union of touching geometries in same class● Transformation from multipolygon to polygons
  7. 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. 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. 9. LAND COVER DATA MODEL CORINE land cover
  10. 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. 11. RECLASSIFICATION QUERY
  12. 12. SOURCE & TARGET DATA SETS
  13. 13. TARGET DATA SET

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