Nereus atene-rven - presentation 3 - 2014

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VENETO REGION Dipartimento Territorio Sezione 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

Transcript of Nereus atene-rven - presentation 3 - 2014

Page 1: 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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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Venezia

Some detail of the Urban Atlas product……..

PadovaRovigo

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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

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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

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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

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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

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Ortoimage AIMA 1994 Ortoimage IT2000 NR 2006-2007

Land Use 2006Land Use 1994

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Base Map 1983 OrtoImage AIMA 1994

Land Use 1983Land Use 1994

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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

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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

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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

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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

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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.

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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

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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

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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

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Land Use Map and the 2007/60/EC

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The Realized Activities

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Hazard Vulnerability Risk

R = H * V * E

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Sample Area

Sample area to highlight the methodological steps for the production of the Flooding Risk Maps

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Land Use Map

Land Use Map at the 1:10000 scale

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Topographic DB

Data derived by the topographic DB (example: Hospital, schools, industrial facilities, etc).

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DTM

Digital Terrain Model (DTM) realized by a LiDAR survey.

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HAZARD

Hazard map of river flood.The Hazard is linked to different scenarios given by the recur time of the event.

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RISK Map

Risk Map obtained combining the elements subjected with the hazard.In the map legend the 4 categories of Risk

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Risk Classes

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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

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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

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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.

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Thank You

Email: [email protected]

From the Land Use Map to the evaluation and management of flood risk, Veneto Region experience