inspire 2011...• build using the geoext system, based on openlayers and extjs system • system...
TRANSCRIPT
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INSPIRE 2011
7/13/2011
Edinburgh
28 June 2011
An Operational Indicator System for ICZM
using a Service Oriented Architecture
Henning Sten Hansen (Aalborg University) and Andreas Oxenstierna (T-Kartor)
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Overview
• Introduction
• Indicators for ICZM
• An OGC Compliant Platform for ICZM
• Conclusions
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Effects of climate change
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Flooding
Coastal erosion
Soil erosion and leaching
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Conceptual model for Decision Support Tool
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Indicator selection
• The selection of indicators is based on
the following criteria
• The indicators selected should be
based on existing indicator sets like
the 27 indicaters from the DEDUCE
project
• The indicators selected should have
relation to ICZM in a climate change
perspektive
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The software architecture
• General standards (ISO, OASIS)
• Web (W3C)
• Geospatial (OGC)
– WMS, WFS, WPS, Spatial SQL
• Open source versus Commercial software
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OpenSource Components
• Operating system (Linux)
• Database (PostgreSQL / PostGIS)
• Tomcat – application server
• Apache – Web server
• Geoserver – Geospatial server
• MapFish – Print server
• GeoExt (Web client)
– OpenLayers + extJS
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Data
• Integrated Land-sea Database
• ENC data (S-57)
• National topographic maps (DK, N, B, UK)
• Pan-European data sets (e.g. from EEA)
• Different access rights and data types
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Apache /Tomcat webserver
BLAST
Data
PostGIS
European
Data
PostGIS
National
Data
PostGIS
WMS WFS
Services
Geoserver Geoserver Geoserver
OpenLayers GeoEXT
WPS Request
WMS/WFS/
WCSWMS/WFS/
WCSGeoWebCache
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Client Interface
• Build using the GeoEXT system, based on Openlayers
and ExtJS system
• System has standard GIS components in terms of layer
tree and navigational functionalities
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Geoprocessing dialog
• For geoprocessing
execution, a process
dialog has been
created, with
predefined options
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The WPS Processing
• The Web based client application creates an Execute
command to Geoserver
• The PostGIS database receives the spatial query and
creates the result view
• The database returns the view to GeoServer that renders
the result back to the client as WMS
• A WFS is created for further processing
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Items for discussion
• Is the Open source geoprocessing environment mature enough
for authority use ?
• Does the commercial software satisfy todays requirements for
transparancy in geoprocessing ?
• Is the use of WFS satisfactory for geoprocessing purposess ?
• Is WCS a ‘forgotten’ standard due to lack of business interest ?
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7/13/2011
www.blast-project.eu
THANK YOU FOR YOUR ATTENTION ! ! !
Henning Sten Hansen
Professor, Aalborg University
Copenhagen Institute of Technology
2750 Ballerup, Denmark
E-mail: [email protected]