Nereus atene-rven - presentation 3 - 2014
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Transcript of Nereus atene-rven - presentation 3 - 2014
VENETO REGION
Dipartimento TerritorioSezione Pianificazione Territoriale Strategica
e Cartografia Eng. Maurizio De Gennaro, Dr. Silvano De Zorzi,
Arch. Massimo Foccardi, Dr. Umberto Trivelloni, Diego Truco
From the Land Use Map to the evaluation and management of
flood risk.
A Veneto Region experience on
GMES/Copernicus downstream service
and the implementation on
Directive 2007/60 EC
The Veneto Region has begun many initiatives for the creation and the update of the cartographic tools, this activity has constituted,during these last years, a basic support for the planning initiatives of the Local Authorities, in particular, providing appropriate tools of territorial know-how.
THE ISTITUTIONAL CONTEXT
THE LAND USE COVERAGE
DATA BASE PROJECT
On the whole it is divided in four steps: Production of the DB of the coverage for
territories artificially modelled. Project GSE Land – Urban Atlas
Implementation of the DB of the coverage of the non urban areas: agricultural territories, forest territories, wetlands, etc.
Production of Historic Land use maps (reverse engineering process)
The Veneto Land Cover Map updating(GSE Land-Urban Atlas HR)
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
1st STEP: GSE LAND – URBAN ATLAS PROJECT
It is promoted and founded by ESA (European Space Agency) – that, in the field of the GMES initiatives, prefigures the supply of Services for Territory Monitoring with satellite data at High Resolution.
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
GSE Land – Urban Atlas: Satellite Images
Spot Venezia True Color 10 July 2006
Regione del Veneto
SPOT Images on file - 2006
SPOT Images on file - 2005
SPOT Images last data capture - 2007
1st STEP: GSE LAND – URBAN ATLAS: METHODOLOGY
The GSE Land – Urban Atlas methodology, prefigures a classification of the territory using the Moland Legend, in line with the directives of the CORINE Land Cover project and with the realization of a database at 1:10000 scale (MMU 0.25 ha).
The data used for the creation of the Land DB are of different kinds:as well as satellite images SPOT 5, multispectral ranges (10 m.) and panchromatic (2.5 m.), others ancillary data have been used as: Teleatlas DB, Digital Regional Topographic Map, DEM, Forest Map, Transport Network and Orthoimage by “Regione del Veneto” .
The classification is executed with the support of software E-Cognition with an object-oriented approach.
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
GSE Land – Urban Atlas: Ancillary data
From the provider: Tele Atlas 2006From Regione del Veneto: Forest Map 2000 Vector and Raster Regional Topographic Map Orthoimages 2003 – 2006 DTM Administrative borders Census sections 2001 DBPrior 10k (routes, railways, hydrography)
networks at the 1:10000 scale DB Land use of the drainage basin in the
Venice Lagoon (1:10000)
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
GSE Land – Urban AtlasClass Harmonization Urban densityautomatic built-up extraction - SPOT
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
GSE Land – Urban AtlasClass Harmonization Urban densityevaluation built-up percentage- SPOT
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
GSE Land – Urban Atlas: Benefits
The benefits of the GSE Land project, based on the satellite images, concern the acquisition of a Land Use Map, for the Urban fields, realized on the whole Region, with a quality standard validated and certified at European level.
This tool allows the use of a data base structure with an extreme accuracy for the monitoring of the Land Use (urban expansions, Land Use changes and transformations), mainly for the applications and the studies based on the accuracy geographical data (agricultural soil, ecological corridors, drainage basin of Venice Lagoon).
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
Venezia
Some detail of the Urban Atlas product……..
PadovaRovigo
2nd STEP: IMPLEMENTATION OF THE GSE LAND – URBAN ATLAS DB, WITH THE ACQUISITION OF
THE LAND USE COVERAGE FOR THE EXTRAURBAN AREAS
For the applications and studies based on the detailed geographical data (Agricultural Land Consumption, Ecological Corridor, drainage basin of Venice Lagoon) we recurred to a further in depth examination, because the GSE Land project, for the extra urban areas, is limited at the 2 level of the CORINE classification.
Regional Law December 12th 2003, n.40
“New rules for the interventions in agriculture”From the Land Use
Map to the evaluation and management of flood risk, Veneto Region experience
SUBCLASS OF DETAIL TILL THE 5° LEVEL – GEOGRAPHICAL
ACCURACY DATA
Agricultural Land Consumption Woods and Forests Wetlands Water bodies Ecological corridor Drainage basin of Venice Lagoon
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
The production of Historical Land Use maps - Third Step
The reverse engineering process
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
Territorial Surface ha “Artificial Areas” Surface ha “Agricolture Areas” Surface ha “Forests and semi natural areas ha” Surfaces
“WetLands and
Water bodies" ha Surface
4673.0 1397.3 1682.8 1526.5 66.3
Distribuzione percentuale della superf icie territoriale
29.9%
36.0%
32.7%
1.4%
Sup EDIFICATO Sup AREE AGRICOLE Sup FORESTE Sup ACQUE
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
Ortoimage AIMA 1994 Ortoimage IT2000 NR 2006-2007
Land Use 2006Land Use 1994
Base Map 1983 OrtoImage AIMA 1994
Land Use 1983Land Use 1994
The Veneto Land Cover Map Updating- Urban Atlas HR -
Fourth Step
GSE Land Urban Atlas HR
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
The Veneto Land Cover Map Updating- Urban Atlas HR -
Fourth Step
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
Land Cover Map with the use of GeoEye1 technology
The Veneto Land Cover Map Updating- Urban Atlas HR –
Fourth Step
Process flow-chart for the creation of the high resolution Urban Atlas
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
Techinical Specification
The Veneto Land Cover Map Updating- Urban Atlas HR - Fourth
Step
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
Image by WorldView-2 technology
The Veneto Land Cover Map Updating- Urban Atlas HR –
Fourth Step
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
Each sensor of WorldView-2 is narrowly focused on a particular range of the electromagnetic spectrum that is sensitive to a particular feature on the ground or a property of the athmosphere.
The Veneto Land Cover Map Updating- Urban Atlas HR - Fourth Step
The benefits of the 8 Spectral Bands Resolution 50 cm New spectral bands:
Coastal Yellow Red edge NIR2
Slew time: 300 Km in 9” Swath width: 16.4 Km at nadir Collection Capacity: 975,000 km2 /day Average Revisit: 1.1 days
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
The Veneto Land Cover Map Updating- Urban Atlas HR - Fourth Step
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
In few words
The Veneto Land Cover Map Updating- Urban Atlas HR - Fourth
Step
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience
Land Use Map and the 2007/60/EC
The Realized Activities
Hazard Vulnerability Risk
R = H * V * E
Sample Area
Sample area to highlight the methodological steps for the production of the Flooding Risk Maps
Land Use Map
Land Use Map at the 1:10000 scale
Topographic DB
Data derived by the topographic DB (example: Hospital, schools, industrial facilities, etc).
DTM
Digital Terrain Model (DTM) realized by a LiDAR survey.
HAZARD
Hazard map of river flood.The Hazard is linked to different scenarios given by the recur time of the event.
RISK Map
Risk Map obtained combining the elements subjected with the hazard.In the map legend the 4 categories of Risk
Risk Classes
Local Authority PROVINCIAR1_Perc R2_Perc R3_Perc R4_Perc No_Risk Pop_R1 Pop_R2 Pop_R3 Pop_R4 Pop_In_Ris Pop_Com Per_PcoFicarolo RO 88,05 10,75 1,09 0,10 0,00 0 2771 0 0 2771 2774 100Ariano nel Polesine RO 0,00 10,47 0,80 0,76 87,97 0 4515 237 8 4760 4773 100Frassinelle Polesine RO 92,22 7,78 0,00 0,00 0,00 0 1635 0 0 1635 1637 100Castelmassa RO 79,24 20,37 0,33 0,05 0,00 0 4074 0 0 4074 4081 100Taglio di Po RO 83,35 15,66 0,56 0,43 0,00 0 7473 140 16 7629 7635 100Porto Tolle RO 0,00 14,12 0,93 1,10 83,86 0 8024 1163 75 9262 9265 100Costa di Rovigo RO 0,00 14,00 0,00 0,00 86,00 0 2646 0 0 2646 2865 92Villanova del Ghebbo RO 0,00 0,82 0,00 0,00 99,18 0 212 0 0 212 2165 10Porto Viro RO 0,00 33,71 0,17 0,28 65,83 0 14065 0 62 14127 14132 100Giacciano con Baruchella RO 0,00 1,69 0,00 0,00 98,31 0 50 0 0 50 2287 2Melara RO 0,00 10,02 0,51 0,00 89,47 0 1758 0 0 1758 1758 100Badia Polesine RO 0,00 0,03 0,00 0,00 99,97 0 0 0 0 0 10044 0Castagnaro VR 0,00 8,19 0,00 0,00 91,81 0 1388 0 0 1388 4003 35Adria RO 88,64 11,27 0,05 0,04 0,00 0 20151 0 0 20151 20180 100Rovigo RO 0,00 9,41 0,00 0,00 90,59 0 15826 0 0 15826 49352 32Pettorazza Grimani RO 0,00 8,42 0,00 0,00 91,58 0 1617 0 0 1617 1621 100San Martino di Venezze RO 0,00 10,54 0,00 0,00 89,46 0 3864 0 0 3864 3875 100Peschiera del Garda VR 0,00 1,12 0,14 0,48 98,25 0 47 0 36 83 8347 1Castelnuovo del Garda VR 0,00 0,08 0,00 0,01 99,90 0 23 0 3 26 8499 0Lazise VR 0,00 0,17 0,01 0,09 99,72 0 171 14 68 253 5890 4Bardolino VR 0,00 0,24 0,02 0,10 99,64 0 199 12 87 298 6123 5Garda VR 0,00 0,95 0,01 0,06 98,99 0 516 2 8 526 3592 15Torri del Benaco VR 0,00 0,10 0,01 0,01 99,87 0 108 0 18 126 2562 5Brenzone VR 0,00 0,09 0,00 0,02 99,89 0 163 0 30 193 2316 8Malcesine VR 0,00 0,17 0,00 0,01 99,82 0 194 0 12 206 3299 6
Percentage of the Risk Areas
Embankment altitude classification
Particulary significant the classification of all the marine and river banks in the Delta Po area on the basis of the altitude calculated by the DTM
Elements of criticality
Not entire relation in the classifications used within the Land Use Map among the various Italian Regions;
Different origins and periods of updating of the data on the various elements (Land Use Map, Base Map, ARPAV data (Environment data) etc.);
Heterogeneous elevation data per period of the survey, accuracy and origin (LiDAR, Base Map, measure);
Necessity to plan periodic update of the data to execute the monitoring as provided by the Directive 2007/60/EC.
Thank You
Email: [email protected]
From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience