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SU-PD INSPIRE
data harmonisation
Pieter Bresters, Krakow, October 2014
SU-PD population grid data harmonisation
As is
Harmonized
GML-SU
GML-PD
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Contents
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Explanation
Approach
Encountered problems
Conclusions
Discussion
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Explanation
Why harmonize?
– INSPIRE directive
‐ 34 themes, 3 Annexes
‐ Statistical Units (SU)
‐ Population Distribution (PD)
– Better data interoperability throughout Europe
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Explanation
– December 2013 data had to be published as-is.
– October 2015 new Annex III datasets have to be
harmonized.
– Population grids concern 2 INSPIRE themes
‐ SU: Statistical Units (grid)
‐ PD: Population Distribution
– TWG SU and PD has delivered 2 data specifications
– They were translated in schema definition files (.xsd)
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Explanation SU-Grid
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Explanation PD
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Approach
Download As-Is data from www.efgs.info
Create ArcGIS shape file in ArcGIS
Tried to do it with DataInterop extension of ArcGIS 10.1
Create GML’s As-Is in QGIS
Download output schema’s:
http://inspire.ec.europa.eu/schemas/
– Used HALE software to define transformation
– Created 2 GML (SU and PD)
– Tried to import them in GIS-software
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The start.
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Join the .csv file to the grid in ArcGIS
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Create GML-As Is in QGIS
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Define transformation with HALE
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Define transformation with HALE
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Define transformation with HALE
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Define transformation with HALE
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Import output GML (SU and PD)
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Import output GML (SU and PD)
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Encountered problems
– Many unknown attributes
– What to fill in for mandatory ID’s?
– How to import the resulting GML’s?
– Geometry conversion
– How to deal with no geometry in PD?
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Encountered problems
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Encountered problems
– Many unknown attributes
– What to fill in for mandatory ID’s?
– How to import the resulting GML’s?
– Geometry conversion
– How to deal with no geometry in PD?
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Encountered problems
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Conclusions
– HALE seems to do the job and has good forum support
– Splitting one dataset into two does not make it easier for
the GIS users
– It is not clear how to implement SU and PD models in
other encodings than GML
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Discussion
– Should there be a combined model (xsd) for SU-PD?
If so, How do we arrange this?
If not:
‐ How do we make PD useable for GIS-users?
‐ Should there be one SU-grid service for EU?
‐ Is there a need for a Table Joining Service for grids?
– How do we deal with cross border pixels in INSPIRE?
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Thank you for your attention
Are there any questions?
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