Angela Peck, 2008
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Company LOGO www.company.com Angela Peck, 2008
description
Angela Peck, 2008. A Web-Based Flood Information System. Presented by - Angela Peck. Department of Civil and Environmental Engineering The University of Western Ontario London, Ontario, Canada. Angela Peck, 2008. Acknowledgments. Advisor: Prof. Slobodan P. Simonovic - PowerPoint PPT Presentation
Transcript of Angela Peck, 2008
Company LOGO
www.company.comAngela Peck, 2008
Company LOGO
www.company.com
A Web-Based Flood Information System
Department of Civil and Environmental EngineeringThe University of Western OntarioLondon, Ontario, Canada
Presented by -
Angela Peck
Angela Peck, 2008
Company LOGO
www.company.com
Acknowledgments
Assistance from – David Gray, Mark Helsten, and Steve Zuppa
Upper Thames River Conservation Authority, Statistics Canada, Canadian Homebuyers Guide, Serge A. Sawyer map library & the IDLS library at The University of Western Ontario
Angela Peck, 2008
Advisor: Prof. Slobodan P. Simonovic
Project Team: Subhankar Karmakar & Jordan Black
Company LOGO
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• Introduction
• Flood Risk-Vulnerability Analysis • Objectives of the study
• Study area
• Flood Risk Descriptors• Hazard Analysis
• Vulnerability Analysis
• Exposure Study
• Web-based Flood Information System
• Conclusion
Angela Peck, 2008
Presentation Outline
Company LOGO
www.company.comAngela Peck, 2008
Introduction
Hazard
Vulnerability
ExposureRisk
- 100yr floodlines- 250yr floodlines
- Physical- Economic- Infrastructural- Social
- Land use characteristics- Soil characteristics
ExposureityVulnerabilHazardRisk Flood
Company LOGO
www.company.com
• To integrate suitable vulnerability indicators into an overall vulnerability index
• To consider Forward Sortation Areas (FSAs) for spatial distribution in risk evaluation
• To consider the spatial impact of flooding of
- Major transportation routes and road bridges - Critical facilities (schools, hospitals, and fire stations)
• To develop a web-based tool for flood risk-vulnerability analyses
• To develop an analysis tool for calculation of flood risk as a function of land use
Angela Peck, 2008
Objectives
Company LOGO
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Upper Thames River Watershed
Simonovic et al., 2007
Angela Peck, 2008
Study Area
Company LOGO
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Forward Sortation Areas (PSEPC, 2005)
Angela Peck, 2008
Study Area
Damage Centre FSAs
London (17)
N5V N5W N5X N5YN5Z N6A N6B N6C N6E N6G N6H N6J N6K N6L N6M N6N N6P
Mitchell (1) N0K
Woodstock (3) N4S N4T N4V
St. Marys (1) N4X
Stratford (2) N4Z N5A
Ingersoll (1) N5C
Company LOGO
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Study Area
Geographic Information Systems Data
• Upper Thames River Conservation Authority
• Statistics Canada• The Ontario Fundamental Dataset• Surficial Geology of Southern Ontario
dataset• Route Logistics
Numerical Data• Statistics Canada
Angela Peck, 2008
Company LOGO
www.company.comAngela Peck, 2008
Hazard
Risk
- 100yr floodlines- 250yr floodlines
Company LOGO
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The study utilizes:100 & 250-year flood lines
100-yr Flood Line for London Area 100-yr Flood Line for N6G
Hazard Analysis
Angela Peck, 2008
Company LOGO
www.company.comAngela Peck, 2008
Hazard
Vulnerability
Risk
- 100yr floodlines- 250yr floodlines
- Physical- Economic- Infrastructural- Social
Company LOGO
www.company.comAngela Peck, 2008
Vulnerability Analysis
Overall vulnerability
Physical InfrastructureEconomic Social
Aggregation
Vulnerability IndicatorsPopulation over 65 yrs old
Single parentsEtc.
Company LOGO
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Layer 1
Layer 2
Layer P
Layer 1
Layer 2
Layer E
Layer 1
Layer 2
Layer I
Layer 1
Layer 2
Layer S
Physical Vulnerability
Economic Vulnerability
Infrastructure Vulnerability
Social Vulnerability
PHYSICAL COMPONENTS
ECONOMIC COMPONENTS
INFRA-STRUCTURE
COMPONENTS
SOCIAL COMPONENTS
Flood Vulnerability
Process for deriving flood vulnerability using GIS
Subhankar, 2007
Angela Peck, 2008
Vulnerability Analysis
Company LOGO
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Critical Facilities Schools, Hospitals, Fire Stations
Angela Peck, 2008
Vulnerability – Critical Facilities
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Degree of Importance (DI)
Red (high influence) – 1.0Orange (medium) – 0.75Yellow (low) – 0.20White (no influence) – 0.0
Angela Peck, 2008
Vulnerability – Critical Facilities
Company LOGO
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Critical Facilities Schools, Hospitals, Fire Stations
Angela Peck, 2008
Vulnerability – Critical Facilities
Degree of Importance (DI)
Red (high influence) – 1.0Orange (medium) – 0.75Yellow (low) – 0.20
White (no influence) – 0.0
Company LOGO
www.company.comAngela Peck, 2008
Vulnerability – Critical Facilities
A1 A2
A3 A4
A5 A6
G1G2
G3G4
G5 G6
---- Grid line
Ak Area under kth grid cell
Gk kth grid cell with over all degree of importance,
ODIk
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minmax
min
ee
eestde VulVul
VulVulVul i
i
Procedure used for standardization
The Overall DI (ODI) for a grid cell
k
jkk
k
jke AAODIVul
i11
)(of ith FSA = ie
Vul
Angela Peck, 2008
Vulnerability – Critical Facilities
Company LOGO
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Avg. Physical Vulnerability
Vulnerability AnalysisAvg. Economic Vulnerability
Angela Peck, 2008
Company LOGO
www.company.comAngela Peck, 2008
Vulnerability Analysis (.... Contd.)
Avg. Social VulnerabilityAvg. Infrastructure Vulnerability
Company LOGO
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Overall Vulnerability
Angela Peck, 2008
Vulnerability Analysis
=+ + +
Company LOGO
www.company.comAngela Peck, 2008
Hazard
Vulnerability
ExposureRisk
- 100yr floodlines- 250yr floodlines
- Physical- Economic- Infrastructural- Social
- Land use characteristics- Soil characteristics
Company LOGO
www.company.com
Impact of land use on ‘Exposure’
• 7 different categories of land use (DI): 1. Water body (0.1)
2. Parks and recreational (0.2) 3. Open space
(0.3) 4. Government and institutional
(0.7) 5. Commercial (0.8)
6. Residential (0.8)
7. Resource and industrial (0.8)
Angela Peck, 2008
Exposure Analysis
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Impact of soil permeability on ‘Exposure’
• 4 different categories of soil type:
1. Low (0.8) 2. Low-medium (0.6) 3. Variable (0.5) 4. High (0.3)
Decreasing chance of accumulation of water on the soil surface
Exposure Analysis
Angela Peck, 2008
Company LOGO
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Flood Lines-100 yr-250 yr
ExposureHazardVulnerability
Flood Risk Assessment
Risk Components
Land Use-commercial-residential-resource & industrial-government & institutional-open area-parks & recreational
Soil Drainage Characteristics(Permeability)-low-low-medium-variable-high
Social Descriptors- age- differential access to resources- household structure- social status- ethnicity- economic
Infrastructure Descriptors-critical facilities-transportation
Economic Descriptors-Structural
Physical Descriptors-biological sensitivity
Risk Indices
Web-based Information
System
Users
Decision Makers
Professionals
General Public
Angela Peck, 2008
Web-based Flood Information System
Company LOGO
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Screenshot of the home page of the web-based flood information system
Web-based Flood Information System
Angela Peck, 2008
Company LOGO
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Type of stakeholders
General public Water managementprofessionals
Decision-makers
Angela Peck, 2008
Web-based Flood Information System
Company LOGO
www.company.comAngela Peck, 2008
Conclusion• New method in evaluation of indices are introduced in the infrastructure flood vulnerability analysis
• The impact of inundation of critical facilities on flood vulnerability
• An ‘analysis tool’ is provided for estimation of flood risk
• This flood risk information is provided uniquely to different users
• Procedures can be applied to other locations and on multiple scales
• Dynamic analyses are desirable
Company LOGO
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Thank you
Angela Peck, 2008
Resources for Technical Details
http://www.eng.uwo.ca/research/iclr/fids/publications/products/ReportBlack2.pdf
http://www.eng.uwo.ca/research/iclr/fids/publications/products/ReportPeck2.pdf
