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Geomatics LaboratoryComo Campus
Volunteered Geographic Information for water management: a prototype architecture
M.A. Brovelli (1), L. Dotti (2), M. Minghini (1), M. Pancaldi (2), G. Zamboni (1)
(1) Politecnico di Milano, DICA, Geomatics Laboratory, Como Campus – Italy(2) Po River Basin Authority (AdbPo), Parma – Italy
2Geospatial Web
DICA - Laboratorio di Geomatica, Polo Territoriale di Como
W W W
3Geospatial Web
DICA - Laboratorio di Geomatica, Polo Territoriale di Como
data
users
catalogues
processing
4Geospatial Web
INTERNET
catalogues
users
data
processing
DICA - Laboratorio di Geomatica, Polo Territoriale di Como
5
✔ Evolution of the 1990s GeoWeb 1.0✔ Interactive tools allowing user participation in spatial data management✔ OGC standards for geospatial interoperability✔ GPS, AJAX and mapping Application Programming Interfaces (APIs) ✔ Neogeography (Turner 2006)
GeoWeb 2.0
Geomatics Laboratory, Politecnico di Milano – Como Campus
➔ creation of maps through mash-ups of multiple data sources
➔ the act of a mass of users to share a job through an open call
➔ the idea of humans acting as sensors able to acquire spatial contents
➔ users can easily perform real-time collection of georeferenced data✔ Diffusion of mobile devices equipped with sensors (GPS, camera, etc.)
✔ Volunteered Geographic Information (VGI) (Goodchild 2007)
✔ Crowdsourcing (Howe 2006)
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✔ Set of practices in which citizens participate in data collection, analysis and dissemination of a scientific project
✔ Active or passive✔ Explicit or implicit✔ Classification
Citizen science
Geomatics Laboratory, Politecnico di Milano – Como Campus
➔ 'classic' citizen science: citizens engaged in traditional scientific activities➔ community science: measurements and analysis carried out by amateurs
in order to set action plans to deal with environmental problems➔ citizen cyberscience: use of computers, GPS receivers and mobile
phones✗ volunteered computing: citizens download data, run analyses on their
own computers and send back data to the server✗ volunteered thinking: citizens perform classification works✗ participatory sensing: applications centered on mobile phones
capabilities
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➔ mobile device field-data collection of water-related phenomena and points of interest
➔ data access and interaction based on user privileges➔ data Web publication and sharing➔ data access through multi-dimensional (2D and 3D) Web interfaces
✔ To build an architecture for a citizen science application focused on water management, which enables:
Purpose of the work
Geomatics Laboratory, Politecnico di Milano – Como Campus
✔ To use FOSS (Free and Open Source Software), i.e. programs which recognize users four essential freedoms:
➔ to run the software for any purpose➔ to modify the software according to the needs➔ to re-distribute copies of the software➔ to distribute copies of modified versions of the software
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➔ IT support to research and teaching activities➔ positioning, surveying, Earth observation & gravimetry➔ photogrammetry, remote sensing, DTM analysis➔ cartography, GIS, Internet GIS
✔ Geomatics Laboratory, Politecnico di Milano – Como Campus
Project partners
Geomatics Laboratory, Politecnico di Milano – Como Campus
✔ Po River Basin Authority (Autorità di bacino del Po – AdbPo)➔ mixed institution (involves the State, the administrative regions and
many institutional bodies concerned with Po river management)➔ responsible for planning and protecting the basin of river Po
✗ longest Italian river (652 km)✗ largest Italian hydrographic basin ( ~ 74000 km2)✗ highly-heterogeneous territory with complex environmental issues
9Citizen science FOSS architecture
Geomatics Laboratory, Politecnico di Milano – Como Campus
SERVER CLIENT
template form
WMS
AGGREGATE COLLECTcompiled form
DATA STORAGEDATA ACQUISITION
DATA WEB PUBLICATION
DATA WEB VISUALIZATION
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➔ management of mobile data collection using a set of related applications
✔ Based on the suite of tools (http://opendatakit.org)
Mobile data collection
AGGREGATE COLLECT
BUILD
FORM CREATION
FORM STORAGE
FORM COMPILATION
Geomatics Laboratory, Politecnico di Milano – Como Campus
11
✔ Form download
Mobile data collectionCOLLECT
Geomatics Laboratory, Politecnico di Milano – Como Campus
12
✔ Form compilation
Geomatics Laboratory, Politecnico di Milano – Como Campus
Mobile data collectionCOLLECT
13
✔ Form compilation
Geomatics Laboratory, Politecnico di Milano – Como Campus
Mobile data collectionCOLLECT
14
Geomatics Laboratory, Politecnico di Milano – Como Campus
✔ Form compilation
Mobile data collectionCOLLECT
15
Geomatics Laboratory, Politecnico di Milano – Como Campus
✔ Form compilation
Mobile data collectionCOLLECT
16
Geomatics Laboratory, Politecnico di Milano – Como Campus
✔ Form compilation
Mobile data collectionCOLLECT
17
Geomatics Laboratory, Politecnico di Milano – Como Campus
✔ Form saving, editing & sending
Mobile data collectionCOLLECT
18Data storage and Web publication
Geomatics Laboratory, Politecnico di Milano – Como Campus
SERVER
AGGREGATE
19Data Web visualization
Geomatics Laboratory, Politecnico di Milano – Como Campus
http://geomobile.como.polimi.it/adbpo/segnalazioni
✔ Scale-dependent data styling (through WMS SLD)
20Data Web visualization
Geomatics Laboratory, Politecnico di Milano – Como Campus
http://geomobile.como.polimi.it/adbpo/segnalazioni
✔ Scale-dependent data styling (through WMS SLD)
21Data Web visualization
Geomatics Laboratory, Politecnico di Milano – Como Campus
✔ Scale-dependent data styling (through WMS SLD)✔
http://geomobile.como.polimi.it/adbpo/segnalazioni
✔ Scale-dependent data styling (through WMS SLD)✔ User-collected contents inside a popup (WMS GetFeatureInfo)
22Project website
Geomatics Laboratory, Politecnico di Milano – Como Campus
http://geomobile.como.polimi.it/adbpo_site
✔ Project presentation & user instructions
23Conclusions and future outcomes
Geomatics Laboratory, Politecnico di Milano – Como Campus
✔ FOSS architecture for a water management citizen science application➔ from mobile device data collection to Web visualization and sharing➔ born from the need of enlarging AdbPo consciousness of its basin through
the collection and valorisation of user local knowledge and experience➔ project still at its early stage➔ app tested by technicians of AdbPo and other water-related agencies
✔ Future improvements➔ exploitation of the Enketo Web framework to allow form compilation even
from computers [almost done]➔ improvement of the Web viewer (in both graphics & functionalities)➔ involvement of the general public in testing and using the application➔ [hopefully in the long run] evolution of the system into a fully-equipped
platform able to manage water-related emergencies
24Contacts
Thanks for your attention!
Politecnico di MilanoLaboratorio di Geomatica - Polo Territoriale di Como
Via Valleggio 11, 22100 Como (Italy)
Maria Antonia Brovelli
Geomatics Laboratory, Politecnico di Milano – Como Campus