Smart Flood Risk Management Solutions

Transcription

1 Smart Flood Risk Management Solutions - RHDHV s Experience in the Gulf of Mexico Mathijs van Ledden, Marten Hillen and Ries Kluskens

2 Challenge Extreme weather around the world (hurricanes, cyclones, extratropical storms) with large impact By climate change and further urbanization in coasts and deltas this will only increase Strong need for tools that provide quick insight into impacts to take the right decisions / reduce the consequences TUFLOW Conference Bristol Page 2

3 Contents Levee Information Management System Emergency Operations Support Module Hurricane Surge Atlas Hurricane Risk & Safety Module Outlook TUFLOW Conference Bristol Page 3

4 Challenges in Louisiana South East Louisiana Flood Protection Authority East (SLFPA) responsible for operation and maintenance of flood defence system System exists of over 350 miles of levees & floodwalls Over 345 Gates and Valves 2 storm surge barriers TUFLOW Conference Bristol Page 4

5 Levee Information Management System Pilot project for SLFPA-East Team expertise on hydraulics, geotechnics & operation Local needs and Dutch/UK experiences Focus on efficient and effective levee management Makes levee information accessible for operation&maintenance Is compatible with National Levee Database (NLD) Can incorporate data from USACE levee inspection tool Types of information included in the system General System information; Permitting; Inspection; Emergency management. TUFLOW Conference Bristol Page 5

6 Pilot Modular System (Spatial) Data Sources - Levee Information Management System National Levee Database Permits Basis Emergency Mgt Public Data LA Statewide GIS Inspections Floodgates Module Hurricane Risk & Safety Module USACE MVN New Orleans Other Accreditation Maintenance Ownership/ Servitude Forecasting Strength Module Modules built in Pilot Modules built in projects after the first Pilot Future modules TUFLOW Conference Bristol Page 6 Modular System Architecture

7 Basis Key functionality: Providing all necessary base data of the entire levee system Permits Inspections Accreditation Maintenance Ownership/ Servitude Basis Floodgates Module Emergency Mgt Hurricane Risk & Safety Module Forecasting Strength Module Ability to store/log: Measured water levels Levee profiles Design drawings Operation & Maintenance plans Etc. TUFLOW Conference Bristol Page 7

8 Basis Permits Inspections Accreditation Basis Floodgates Module Emergency Mgt Hurricane Risk & Safety Module Forecasting Strength Module Maintenance Ownership/ Servitude TUFLOW Conference Bristol Page 8

9 Floodgates Emergency Operations Support Module Objective: To support Emergency Operations on a regional level by accurately tracking and planning the status (open/closed) of floodgates, valves and flood defense openings during a high tide, high river and/or storm event within a web-based environment that allows local, regional, state and federal emergency officials to instantly access the same critical information. Basis Permits Emergency Mgt Inspections Floodgates Module Hurricane Risk & Safety Module Accreditation Forecasting Strength Module Maintenance Ownership/ Servitude TUFLOW Conference Bristol Page 9

10 Floodgates Key functionalities: Keep track of Gate status (open/closed) during a storm or high water event Efficient communication and dissemination of gate status to various stakeholders (local, state federal level) Ability to store/log: Technical information about the gate/structure Emergency contact information for each gate Gate/Structure Maintenance logs Creating time schedule for opening and closing gates (planning wizard) Export gate status to various formats TUFLOW Conference Bristol Page 10

11 Floodgates Client feedback The Regional Levee Information Management System () and its Emergency Operations Support (EOS) module are vital to our responsibility of monitoring and maintaining the levee system in Southeast Louisiana, especially during hurricane season. Use of this system will help us to assure the safety of our area residents. - Giuseppe R. Miserendino (Regional director of the Southeast Louisiana Flood Protection Authority West) TUFLOW Conference Bristol Page 11

12 Hurricane Surge Atlas Permits Inspections Accreditation Basis Floodgates Module Emergency Mgt Hurricane Risk & Safety Module Forecasting Strength Module Forecasted track and storm characteristics by NOAA NHC Atlas with modeling results of hypothetical storms Maintenance Ownership/ Servitude Select storm Mitagate / Take action Estimate Surge Levels & Waves conditions Use in Emergency planning and decision making Advantages of Hurricane Surge Atlas Instant insight in maximum water levels and impacts days before storm makes landfall; Low on computational resources, very reliable; Changes in NOAA - NHC forecast can be very quickly assessed. TUFLOW Conference Bristol Page 12

13 TUFLOW Conference Bristol Page 13 Hurricane Isaac - Advisory 29 4am CDT 28 august 2012

14 Hurricane Surge Atlas Proven Tool in support of Emergency Operations. Used by US Army Corps of Engineers New Orleans District and SLFPA-East during: Hurricanes Gustav & Ike (2008) Tropical Storms Ida (2009), Bonnie & Danielle (2010), Lee (2012) Hurricane Isaac (2012) TUFLOW Conference Bristol Page 14

15 Hurricane Risk & Safety Module Permits Inspections Accreditation Basis Floodgates Module Emergency Mgt Hurricane Risk & Safety Module Forecasting Strength Module Rapid insight levee performance under storm conditions Maintenance Ownership/ Servitude Forecasted Hurricane Track NOAA NHC Module contents and workflow Levee geometry Soil parameters Geotechnical calculations Safety map The Storm Atlas is used to select a storm that match the approaching storm characteristics such as direction, pressure and speed. Storm Forecast Module For the selected storm the hydraulic loads (water levels and waves) are calculated per levee section. The hydraulic loads are input to the Levee Strength Module. H s T p MSL Per levee section the strength against failure is calculated for the three main failure mechanisms. Overtopping Slope Stability stability Seepage The safety map shows the lowest calculated safety factor for every levee section Levee Strength Module The output of the Levee Strength Module is presented as maps and meters The levee operator can interper the maps and meters and use this information for better decision making and communication Mitigation measures The decision support system will provide the levee operator with a recommended action and mitigation plan. Decision Support Module TUFLOW Conference Bristol Page 15 Dashboard maps and meters

16 Hurricane Risk & Safety Module Permits Inspections Accreditation Basis Floodgates Module Emergency Mgt Hurricane Risk & Safety Module Forecasting Strength Module Maintenance Overview of relevant storm information Makes complex technical information accessible Hydraulic modeling overview Insight in flood defence performance Rapid insight in storm impact presented on dashboard Model results Weather forecast Real-time data (water levels) Tweets Adaptable to user needs Proven during Hurricane Isaac 2012 (next slides) Ownership/ Servitude TUFLOW Conference Bristol Page 16

17 TUFLOW Conference Bristol Page 17 Hurricane Risk and Safety Module Hurricane Isaac Advisory 33B

18 Hurricane Risk & Safety Module Client feedback TUFLOW Conference Bristol Page 18

19 Smart Flood Risk Management Solutions Other project experience Outlook TUFLOW Conference Bristol Page 19

20 North Sea Atlas Contract: Valorius program within the partnership Collaboratorium Climate and Weather Partners: Royal HaskoningDHV, KNMI, Deltares Duration:1 year (2013) Budget: Ca. 200,000 Euro of which 50% subsidy, 25% own financing, 25% matching/in-kind contribution Final product: Pilot version of Storm Surge Atlas for the North Sea TUFLOW Conference Bristol Page 20

21 TRITON - Coastal Flood Forecasting & Warning System A real-time coastal flood forecasting and warning system developed by Royal HaskoningDHV and Plan B Red lines indicate where TRITON system was implemented for coastal flood forecasting/warning TUFLOW Conference Bristol Page 21

22 Firths of Forth and Tay Coastal Flood Warning TUFLOW Conference Bristol Page 22

23 TUFLOW Conference Bristol Page 23 New York City

24 Coastal Flood Forecasting System for Queensland TUFLOW Conference Bristol Page 24

25 TUFLOW Conference Bristol Page 25

26 MORE INFORMATION Mathijs van Ledden Phone: +31-(0) Marten Hillen Phone: +31-(0) Ries Kluskens Phone: +31-(0) Keming Hu Phone: +44-(0) TUFLOW Conference Bristol Page 26