pieter bresters, krakow, october 2014 su-pd inspire data harmonisation
TRANSCRIPT
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Pieter Bresters, Krakow, October 2014
SU-PD INSPIRE data harmonisation
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SU-PD population grid data harmonisation
Harmonized
GML-SU
GML-PDAs is
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Contents
– 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?23
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Thank you for your attention
Are there any questions?
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