Flood risk modelling and assessment for community resilience
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Flood risk modelling and assessment for community resilience Albert S. Chen
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Transcript of Flood risk modelling and assessment for community resilience
Flood risk modelling and assessment for community resilience
Albert S. Chen
hydrological 1D hydraulic
2D hydraulic 3D CFD
Flood modelling approaches
4
7
Fast sewer & overland flow models
Simple transition rules
Parallel computing (GPU, multicore CPU)
Good accuracy and speed up
Large domain & Monte-Carlo uncertainty analysis
CADDIES
Austin et al. 2014, J Hydroinformatics; Ghimire et al. 2013 , J Hydroinformatics
Guidolin et al. 2016 Environmental Modelling & Software
Flood modelling at city scale
Global Innovation Initiative
Climate change
reducing the risks of damage & loss of life from surface water & flash flooding
Flooding From Intense Rainfall
WP1: improved forecasts of
convective rainfallWP2: understanding catchment
susceptibility to FFIR
WP3: Improving operational risk
management capacity
Newcastle 28.06.12
Alnick 28.06.12
Boscastle 16.08.04
Risk assessment
Flood impact Urbanisation Health impact
TransportationCritical
infrastructureCascading
effects
Flood impact assessment
Unified flood risk assessment toolkit and framework
Development and evaluation of flood resilient strategies
System dynamic analysis
Powell et al. 2016, European J Operational Research
Hammond et al. 2015, Urban Water J
Hammond et al. 2013, Urban Water J
Chen et al. 2016, Natural Hazards
Chen et al. 2016, Natural Hazards
Barcelona Taipei Nice
BeijingDhaka
Urban growth
Urban growth
Health impacts
2D simulation of transport/mixing of pollutants surcharging from sewers in surface flood water
Result: concentration distributions of different pathogens
http://www.bbc.co.uk/news/world-asia-china-36710741
Traffic disruption
Traffic modelling
Future transportation
Urbanisation & megacities
Global car production in 2014 : 90Mn
75% vehicles will have different levels of autonomous by 2040
£51Bn/y benefit by 2030
Connected autonomous vehicle
Individual optimum vs System optimum
Flood impact to communities
Highlight CICritical Infrastructure
Cascading effects
Flooding
Transportation
Energy supply
Water supply
Waste water
Tele-comm.
Health
Emergency response
Acknowledgement
FFIR
SINATRA / TENDERLYGlobal Innovation Initiative
CADDIES
AlbertChenExeter
@AlbertChen_CWS
ContactDr Albert S. Chen
www.exeter.ac.uk/cws
Thank you & Questions?
