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The Use of Global Datasets for Risk and Vulnerability Assessment: the GRAVITY project Pascal Peduzzi, United Nation Environment Programme

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Presentation on theme: "The Use of Global Datasets for Risk and Vulnerability Assessment: the GRAVITY project Pascal Peduzzi, United Nation Environment Programme"— Presentation transcript:

1 The Use of Global Datasets for Risk and Vulnerability Assessment: the GRAVITY project Pascal Peduzzi, United Nation Environment Programme Pascal.Peduzzi@grid.unep.ch Hy Dao Damien Rochette Christian Herold

2 Context The UNDP/ERD World Vulnerability Report Expert Meeting on Vulnerability and Risk Analysis and Indexing, Sept. 2000 UNDP/ERD - UNEP/GRID contract, 4 staffs paid at GRID-Geneva Feasibility study : Feb.-Jun. 2001 Consolidation : Jul.-Dec. 2001

3 Risk Mitigation ?

4 Formula Risk i = Hazard i x Population x Vulnerability i Realized Risk (CRED) Hazard x population Physical exposure = Vulnerability Risk tot = Risk volc + Risk flood + Risk cycl. + … + Risk n

5 Geophysical and statistical datasets

6 Access to information in time

7 Exploration of the CRED For 1980-2000

8 Selection criterion

9 Need special consideration for: Tsunamis: Papua New Guinea (67.8%), Ecuador (14.3%) Landslides: China (6%), India (3,46%), Indonesia (13,88%), Peru (33%), Colombia (4,2%), Philippines (4.59%) and Ecuador (10.2%). Need to take into account drought Drought (food insecurity) = 46.54%

10 The choice of indicators

11 Using the database on population CIESIN/UNEP

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16 Socio-economic datasets

17 Identified factors

18 Crossplot between estimated and realized risk for floods r = 0.61

19 Several products

20 Exposure to flood

21 Thank you Http://www.grid.unep.ch/preview


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