Progress of SIGC -Coastal Geographical Information System

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1 Progress of SIGC -Coastal Geographical Information System Filippo D Ascola, Angela Barbano ISPRA -Istituto Superiore per la Protezione e la Ricerca Ambientale Dip.to Tutela Acque Interne e Marine - Servizio Difesa delle Coste Sede di Roma, Via Curtatone, 3 Tel angela.barbano@isprambiente.it, filippo.dascola@isprambiente.it

to Tutela Acque Interne e Marine - Servizio Difesa delle Coste Sede di Roma, Via

2 Reasons behind the SIGC One of tasks of ISPRA concerns analisys of both the national territory shoreline development and of the coastal defence actions in order to safeguard the coast against erosions phenomenons and analisys of coastal managment plans SIGC is a tool that gathers datas and processes information in order to produce: Representation of natural and anthropic elements that define coastal areas; Studies and reports about state of coastal areas in Italy; Specific areas studies and surveys

plans SIGC is a tool that gathers datas and processes information in order to produce: Representation of natural and

3 Features of SIGC Nation-wide representation Uniform data and maps for the whole country

4 SIGC from 1950 to 1999: basic elements Raster data: historic maps and digital photos Vector data that concern: Administrative division; Infrastructures; Enviromental and costal information

SIGC 1950-1999 (1/3) : examples of layers processed Phisiographic and morphologic units Measurement

5 SIGC (1/3) : examples of layers processed Phisiographic and morphologic units Measurement network (buoy wave meters and tide gauge stations) and areas of coastline for wave climate Harbours,

6 SIGC (2/3) : shorelines processed LC 1950 (from historic maps, homogeneous, 1:25000) LC 2000 (from digital photo 1999, homogeneous, 1:10000, analyzed 1:5000/1:3000)

7 SIGC (3/3) : attributes of shorelines layers Natural: low, high Artificial: coastal works, harbours, maritime infrastructures

8 SIGC : shoreline variation Procedure: buffer, overlap, change detection

9 The evolution in SIGC: new reference data Using the same methology: References to digital photos ; Updates and addictions; Buffer: +/- 5m

10 SIGC 2007 (1/3) : shoreline processed LC2007: same methodology, better outcome (for ex. correction imprecisions e integration of hidden areas)

11 SIGC 2007 (2/3) : backlines processed Acquisition methodology: photointerpretation and digitalizzation of aerial digital photos and Definition: Type 1 = natural vegetation and farmed lands Type 3 = factitious rivers outfall, harbours, shoreline adherent works Type 2 = artificial artifacts, and infrastructures

Type 1 = natural vegetation and farmed lands Type 3 = factitious rivers outfall,

12 SIGC 2007 (3/3) : layer beaches processed Beach maps (from lines to polygons): based on two linear and continous borders, the shoreline and the backline; Definition by surface, width, lenght and trend evolution. Beach lines 2010 Beach polygons

borders, the shoreline and the backline; Definition by

13 Analysis SIGC 2007 (1/8) : evolution of coastal areas (Punta s Aliga a Portoscuso) m m

14 Analysis SIGC 2007 (2/8) : evolution of coastal areas (Sinni s outfall) m 500 m 1950

15 Analysis SIGC 2007 (3/8) : developmentof coastal works (Margherita di Savoia)..and between 1999 and 2007 Works before 1999

16 Analysis SIGC 2007 (4/8) : changes and enlargments of harbours (Varazze)

17 Analysis SIGC 2007 (5/8): coastal dynamics (Adriatic Sea) Changes and coastal risk: beachs m 215 m 215 m

18 Analysis SIGC 2007 (6/8):coastal dynamics (Dorgali) Changes and coastal risk: high coast

19 Analysis SIGC 2007 (7/8) : anthropic actions (Badolato) Problems related to coastal defence works, maritime infrastructures and harbours

20 Analysis SIGC 2007 (8/8) : anthropic actions (Tortolì) Urbanistic development issues

21 Elaborations of SIGC 2007(1/2) : Statystics The coastal evolution and the coastal work trends are shown by statystical elaborations and datas (linear and superficial) nationwide local per phisiographic unit

22 Elaborations of SIGC 2007 (2/2) : Statystics Update of both format of statistics and summary data of LC 2000

23 Future developments Data pubblication: webgis and reports Consolidation and updating of the periodical monitoring system (aerial digital photos )

24 grazie per l attenzione

MAREMED kick off meeting

MAREMED kick off meeting MEDITERRANEAN BASIN (Italy) Spatial Planning Department Orietta Gattulli economic management Marino Fiorito computer service center 22 June 2010 REGION PROVENCE-ALPES-CÔTE D AZUR