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Managing and publishing geographical datausing GFOSS.

The example of the Alcotra-RiskNat strategic project incollaboration with the Imperia province, Italy.

Asimina Syriou*, Roberto Marzocchi*, Tiziano Cosso*,Bianca Federici**, Domenico Sguerso**

* Gter s.r.l. Innovazione in Geomatica, Gnss e Gis.** Dept. of Civil, Chemistry and Environmental Engineering (DICCA - UNIGE).

Genoa, February 7th, 2013

Introduction Data Management Data publishing Next step... Conclusions

Alcotra - RiskNat

RiskNat

is a cross-border project in the framework of the Alcotra France - Italyprogram (2007-2013), developed between 2009 and 2012.

RiskNat focuses on natural hazards such as earthquakes, landslides,

torrent floods, snow avalanches, and hazards related to permafrost

degradation concerning mountain areas.

All regions of western Alps (Italy, France and Switzerland)are involved.

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Alcotra - RiskNat, Imperia

Imperia province coordinated and developed a part of the RiskNatwork related to the B.7.2 - C.7 framework:

Vulnerability of Roia’s basin in terms of water resources management

related to different natural hazards.

The mountain part of Roia’swatershed lies almost entirely inFrance, while the last part of theriver crosses a small alluvial plain

located in Italy (Ventimiglia). Thisnot-confined acquifer is one of themain freshwater storages for boththe Cote d’Azur and the Imperia

Province.

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Methodology

1 Data acquisition related to Roia basin.

2 Metadata creation according to the INSPIREguidelines and spesifications.

3 Geographic database design and spatialinformation management.

4 Data publication: sharing and editinggeospatial data using open standards.

5 Digital DVD atlas: browsing and queringvarious thematic layers of Roia basin and river.

6 Preparation and implementation of a trainingcourse(+users guide) concerning GFOSS.

7 Eur-Eau-Pa: continuation of the Alcotra -RiskNat project.

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OpenSource Software (OSS) used

GRASS & QuantumGIS (QGIS) for vector and rasterdata manupulation - GIS analysis.

GDAL library for reading and writing raster geospatialdata formats.

PostGIS for database (DB) management.

Geoserver for viewing and editing geospatial data.

OpenLayers library for displaying map data in the webbrowser.

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Census data

Vector and raster datarelated to:

- probes, wells;- trace sections of Roia

river - flow scenarios;- potential pollution

source points - riskscenarios;

Cartographic catalog ofRoia basin including bothvector and raster layers.Alcotra - EUROBASSINProject (2000-2006).

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Importing vectors

Data’s been created and/or imported on GRASS platform, instandardized storage format (lib. GDAL/ OGR), reference systemRoma40 and map projection Gauss Boaga.

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Metadata INSPIRE

Metadata files have been created implementing INSPIRE(INfrastructure for SPatial InfoRmation in Europe)

guidelines and specifications, aiming to ensure cross-borderinteroperability and sharing of geographic data.

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Database

Designed in a flexible and extensible way,optimizing data storage, without altering theoriginal structure. OSS PostgreSQL has beenused for the database management system(DBMS) and its spatial extention PostGIS.

Geographic (georeferenced) data has been storedwith both its spatial geometry and attributes.

The DB can be consulted in tabular form usingclient interfaces such as pgAdmin III and canbe also accessed directly using GIS Desktop.

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Vector data geometry

Storing vector data geometry:

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Vector data metadata

Storing metadata files associated with the vector layers:

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Publishing on RiskNat geoportal

Geodata creation in OGC Web Map Service (WPS) and Web FeatureService (WFS) format allowing users to navigate to RiskNat geoportal,

developed by ARPA-Piemonte.

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System overview

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Digital DVD Atlas

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Training

A training course has beenconducted for the personnel of theImperia province, focusing on theuse of GFOSS and explaining theuse of the entire systemarchitecture:

- PostGIS- QGIS

Users guide creation anddemonstration.

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EUR-EAU-PA

Eur-Eau-Pa is the continuation of Alcotra-RiskNat B.7.2 -C.7project completed in April 2012.The use of GFOSS has been considered important in terms of:

GeoWeb services creation for most of the data gatheredduring the previous projects (EuroBassin and RiskNat)

WebGIS creation for:

- publishing selected data;- managing, updating and downloading information for users

logged in with various privileges.

The webGIS is already integreted within an OpenSource projectmanagement tool (dotproject). It will be published on the officialproject’s website using OpenSource Content Management System(Joomla).

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WebGIS platform

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Conclusions

+ GFOSS has been an effective solution for creating both acomplex GeoDB and a promotional product attractive to thepublic (DVD-atlas).

+ The Imperia province has officially approved the use of GFOSSfor the geodata management for the next Eur-Eau-Pa project.

- So far public administration (PA) offices are timid in usingOSS. This often slows down the adoption of innovative andinteroperable solutions.

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That’s all folks!Thank you for your attention!

info@gter.it

www.gter.it

Quest’ opera e distribuita con licenza Creative Commons Attribuzione - Condividi allo stesso modo 3.0 Unported.