The document discusses a project that managed and published geographical data from the Roia River basin in Italy using open-source software. Key steps included acquiring data, creating metadata, designing a PostGIS database, publishing data on a geoportal using OGC standards, creating a digital atlas, and providing training. The project demonstrated managing spatial data and sharing it using open standards to ensure interoperability across borders.

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Managing and publishing geographical data
using GFOSS.
The example of the Alcotra-RiskNat strategic project in
collaboration 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

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Alcotra - RiskNat
RiskNat
is a cross-border project in the framework of the Alcotra France - Italy
program (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 RiskNat
work 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’s
watershed lies almost entirely in
France, while the last part of the
river crosses a small alluvial plain
located in Italy (Ventimiglia). This
not-confined acquifer is one of the
main freshwater storages for both
the 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 INSPIRE
guidelines and spesifications.
3 Geographic database design and spatial
information management.
4 Data publication: sharing and editing
geospatial data using open standards.
5 Digital DVD atlas: browsing and quering
various thematic layers of Roia basin and river.
6 Preparation and implementation of a training
course(+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 raster
data manupulation - GIS analysis.
GDAL library for reading and writing raster geospatial
data formats.
PostGIS for database (DB) management.
Geoserver for viewing and editing geospatial data.
OpenLayers library for displaying map data in the web
browser.
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Census data
Vector and raster data
related to:
- probes, wells;
- trace sections of Roia
river - flow scenarios;
- potential pollution
source points - risk
scenarios;
Cartographic catalog of
Roia basin including both
vector and raster layers.
Alcotra - EUROBASSIN
Project (2000-2006).
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Importing vectors
Data’s been created and/or imported on GRASS platform, in
standardized storage format (lib. GDAL/ OGR), reference system
Roma40 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-border
interoperability and sharing of geographic data.
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Database
Designed in a flexible and extensible way,
optimizing data storage, without altering the
original structure. OSS PostgreSQL has been
used for the database management system
(DBMS) and its spatial extention PostGIS.
Geographic (georeferenced) data has been stored
with both its spatial geometry and attributes.
The DB can be consulted in tabular form using
client interfaces such as pgAdmin III and can
be 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 Feature
Service (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 been
conducted for the personnel of the
Imperia province, focusing on the
use of GFOSS and explaining the
use of the entire system
architecture:
- PostGIS
- QGIS
Users guide creation and
demonstration.
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EUR-EAU-PA
Eur-Eau-Pa is the continuation of Alcotra-RiskNat B.7.2 -C.7
project completed in April 2012.
The use of GFOSS has been considered important in terms of:
GeoWeb services creation for most of the data gathered
during 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 project
management tool (dotproject). It will be published on the official
project’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 a
complex GeoDB and a promotional product attractive to the
public (DVD-atlas).
+ The Imperia province has officially approved the use of GFOSS
for the geodata management for the next Eur-Eau-Pa project.
- So far public administration (PA) offices are timid in using
OSS. This often slows down the adoption of innovative and
interoperable solutions.
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That’s all folks!
Thank you for your attention!
info@gter.it
www.gter.it
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