modelling flood hazard downstream the dam … · • conagua has started involving young...
TRANSCRIPT
Modelling Flood Hazard Downstream the Dam Venustiano Carranza, Coahuila, Mexico
WHY?
• Young Flood Risk Managers (FRMs) generateinformation which could be useful andunderstandable by stakeholders as decisionmakers, urban planers and end users.
• Young FRMs can bridge the communication andtechnology gap between communities andscientists with an inter-disciplinary approach.
• Floods, from 1992 (Rio de Janeiro Earth Summit)to 2012:
Source: UNISDR, 2012
HOW?
• Using Open Source technologies availableworldwide.
• Validating results.• Providing understandable outputs to end users.
WHATS NEXT?
• CONAGUA has started involving youngprofessionals to estimate flood extents.
• WYN and UN-MGCY work continuously to connectyoung professional focused in Disaster RiskReduction (DRR).
• WYN will coordinate to further build a strongercommunity e.g. through WYN-UN-MGCY plus anyother organizations, agencies and institutions.
• Connect young professionals and researchers oninnovative DRR (research) projects.
• Supporting youth engagement in the InternationalNetwork for DRR.
Contact: Miguel Angel Trejo Rangel, Water Youth Network (WYN): [email protected]
Input Data
Set Up theModel
Results
Validation
Final Outputs
Input Data
Set Up the
Model
Results
Validation
Final Outputs
Policy of Operation of the Dam
DEM(30 x 30 m)
• Mesh resolution: 30 x 30 m• Manning Roughness: 0.030• Discharge: 3,936 m3/s (Tr ~50 years)
Study area Digital Elevation Model
Water Depth Velocity Severity
Maps for decision makers
June 21st, 2010
Hurricane Alex hits
July 11th, 2010
Maps available on internet
Pictures taken on July after hurricane Alex hit the area of Coahuila
Validation by local authorities
http://www.atlasnacionalderiesgos.gob.mx
Source: CONAGUA, 2010