UDINEE Workshop Presentation of Canadian Urban Flow and Dispersion Modeling System: Application to First Urban Dispersion International Evaluation Exercise (UDINEE) Najat Benbouta, Nils Ek Environmental Emergency Response Section National Prediction Operations Meteorological Service of Canada Environment Canada This work is funded by the CSSP, Canadian Safety and Security Program, led by Defence Canada. UDINEE Workshop, Ispra (Italy) December 15 2015
UDINEE Workshop Outline ØCanadian Centre for Meteorological and Environmental Prediction (CCMEP) ØMandates and Activities of the Environmental Emergencies Response Section (EERS) ØOverview of the Canadian Urban Flow and Dispersion System (CUDM) Ø Demonstration of CUDM and Impact on Canada’s ability to respond Ø Application to UDINEE N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 2
UDINEE Workshop Canadian Centre for Meteorological and Environmental Prediction (CCMEP) Ø National Meteorological Centre for the production of numerical weather prediction (NWP) Global (25 km) and Regional (10 km) NWP model grids Ø 24/7 basis, 365 days / year. Operations are based on a supercomputer infrastructure and telecommunications network Ø Includes divisions from : ü Meteorological Service of Canada (MSC) of Environment Canada (EC) ü Science and Technology (S&T) of EC ü Shared Services (IT) 5 th floor: Research 4 th floor: Development 3 rd floor: IT 2 nd floor: Operations N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 3
UDINEE Workshop Environmental Emergency Response Section (EERS): Activities Ø Chernobyl on 26 April 1986 begining of EERS • Versatile Team: Meteorologists, Physical scientists and Computer specialists • Operational Response Events: Chemical, biological ; Radiological, Nuclear; Volcanic ash • Operational, In-house Atmospheric Dispersion Model Suite: Simple Trajectory model, Short-scale (MLCD) to medium and long-scale (MLDPn) Lagrangian stochastic dispersion models, Inverse models Ø Ongoing Projects: 1. Aquatic dispersion modelling of oil spills: World Class Oil Spill Response (WCOSR) Regime initiative led by Transport Canada. Development of a first-line 24/7 capacity, of aquatic transport and dispersion model, operated by EERS. Based on CCMEP new suite of high-resolution coupled atmospheric-ocean-ice prediction model. 2. Urban Dispersion Modelling: September 11 2001 - CBRNE Research and Technology Initiative (CRTI) followed by Public Safety and Security Program led by Defense Canada. Canadian Urban Dispersion Modeling (CUDM) N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 4
UDINEE Workshop Environmental Emergency Response Section (EERS): Mandates Operational Support (24/7) and preparedness. Radiological-nuclear: • Federal Nuclear Emergency Plan FNEP • Specialized capabilities in CBRN urban modeling (Prototype) International mandates: • WMO/IAEA Regional Specialized Meteorological Centre (RSMC) to respond to nuclear emergencies worldwide. • International Civil Aviation Organisation ICAO Volcanic Ash Advisory Centre (VAAC) for volcanic ash transport and dispersion modeling. • Operational Support to the Comprehensive Nuclear test Ban Treaty (CTBT). Other Activities: • Domestic Support to EC’s Environmental Emergencies Program (Train Derailment…) • Support to Canadian Food Inspection Agency CFIA (Avian flu…) N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 5
Context CRTI & CSSP UDINEE Workshop CUDM: Canadian Urban Dispersion Modeling System Ø Atmospheric transport and dispersion of CBRN agents in dense urban environments identified as a key gap in the CSSP and previously in CRTI created post 9/11 by RDDC. Ø Existing operational non-urban mesoscale plume models have limitations for emergency response to CBRN events in urban environments. Ø Under the projects CRTI 02 -0093 RD and CRTI-07 -0196 TD, a prototype of the Canadian Urban Dispersion Modeling System (CUDM) was developed. CUDM System aims to fill this gap and to be used for scenario planning, operational response and post-event analysis. N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 6
UDINEE Workshop Partners and Collaborators CRTI & CSSP 1. Environment Canada, Dorval, Quebec 2. University of Waterloo, Ontario 3. Research & Development Defence Canada (RDDC), Suffield Project Management: 1 Pierre Bourgouin Urban Flow Modeling Lead: 2 Dr. Fue-Sang Lien, 3 Dr. Eugene Yee Urban. LS = Urban Lagrangian Stochastic Dispersion Model (4 Dr. John Wilson) Urban. Stream = Computational Fluid Dynamics (CFD) Model (2 Dr. Fue-Sang Lien) 1 EER Section, Meteorological Service of Canada, EC. 2 Waterloo CFD Engineering Consulting Inc. , University of Waterloo 3 Defence Research and Development Canada, Suffield. 4 J. D. Wilson & Associates, Edmonton, Alberta N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 7
UDINEE Workshop CUDM: Current Project CSSP-2013 -CP-1013 Ø The project goal is to transition the flow and atmospheric dispersion modeling in urban environment, towards the status of an operational system; by training, testing, developing product interoperability, and updating Canadian Cities datasets Ø Final result will be an Integrated transport and dispersion modeling system, for emergency response at scales from urban to global. Operational April 2017 Ø Demonstration in various tests and exercises 2015 Toronto Pan-Am Games N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 8
CSSP - PCSS Components CUDM: Canadian Urban Dispersion Modeling System Reg GEM 10 km 00, 06, 12, 18 Z CUDM System urban. GEM 2. 5 km 1. 0 km 250 m Mean Flow at ground Concentration at ground urban. Profil 2. 5 km 1. 0 km 250 m Products urban. Profil Obs MLDPn +MLCD Operational large & short range dispersion models SPI Batch mode & GUI urban. STREAM CFD model urban. LS dispersion model Concentration at ground December 15 2015. UDINEE Workshop. Ispra (Italy) P. 9
CSSP - PCSS CUDM: Canadian Urban Dispersion Modeling System Urban. vs. Non-Urban Montreal SW Wind prevailing Toronto SW Wind prevailing December 15 2015. UDINEE Workshop. Ispra (Italy) P. 10
Urban Signature flow CSSP - PCSS Wind from NE and Source is located in the wake of tall building (recirculation) December 15 2015. UDINEE Workshop. Ispra (Italy) P. 11
CSSP - PCSS Hypothetical release in Winnipeg December 15 2015. UDINEE Workshop. Ispra (Italy) P. 12
CSSP - - PCSS CSSP PCSS Hypothetical release in Vancouver CUDM + SPI (in-house tool of visualization and analysis) December 15 2015. UDINEE Workshop. Ispra (Italy) P. 13
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Domain: 360 x 320 x 100 Uniform Internal Grid: 320 x 280 x 76 DX = 5 m, DY = 5 m and DZ~2 m Htop = 460 m, Hmax = 151 m Inlet: Power law profile Pwids-15 at 40 m Stretched 20 points of grid outside the internal grid N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 14
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE IOP 3 14 h 17 Horizontal Velocity At height of 1. 1 m N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 15
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE IOP 3 14 h 17 Horizontal Velocity At height of 7. 5 m N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 16
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE IOP 3: 14 h 17 TKE At height of 9. 7 m N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 17
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 18
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE S-20 S-18 S-17 S-19 S-15 S-16 S-09 S-07 S-10 S-01 S-08 S-13 S-11 At 40 m S-15 4. 6 m/s. vs. 5. 75 m/s S-14 S-12 Inlet to adjust? or S-06 drag coef. in non S-03 resolved grid ? S-04 S-02 S-05 IOP 3: 14 h 17 Vertical Profile of horizontal velocity N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 19
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE IOP 3: 14 h 17 Vertical Profile of vertical velocity W S-20 S-18 S-17 S-19 S-15 S-16 S-09 S-07 S-10 S-01 S-08 S-13 S-11 S-14 S-12 S-06 S-03 S-04 S-02 S-05 20 10 N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 20
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Inlet: WS - WD -Time R 1: 8. 67 - 205. 68 - 14 h 00 R 2: 7. 45 - 205. 85 - 14 h 20 R 3: 6. 05 - 204. 84 - 14 h 40 2 3 3 1 S-20 R 1 S-10 R 1 S-20 R 2 S-10 R 2 S-20 R 3 S-10 R 3 2 1 IOP 3: Wind Speed profiles Outputs: R 1: 14 h 20 R 2: 14 h 40 R 3: 15 h 00 N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 21
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Inlet : WS – WD - Time IOP 3: 8. 67 - 205. 68 - 14 h 00 IOP 4: 7. 09 - 203. 18 - 14 h 00 IOP 3 IOP 4 IOP 3 S-20 IOP 3 S-10 IOP 3 S-20 IOP 4 S-10 IOP 4 IOPs 3 -4 : Wind Speed profiles Outputs at 14 h 20 N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 22
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Inlet : WS – WD - Time IOP 3: 8. 67 - 205. 68 - 14 h 00 IOP 4: 7. 09 - 203. 18 - 14 h 00 IOPs 3 -4 : TKE profiles Outputs at 14 h 20 IOP 4 S-20 IOP 3 S-10 IOP 3 S-20 IOP 4 S-10 IOP 4 IOP 3 N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 23
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Inlet : WS - WD - Time IOP 5: 7. 47 - 148. 61 - 20 h 40 IOP 6: 4. 66 - 185. 11 - 20 h 40 IOP 5 IOP 6 S-20 IOP 5 S-10 IOP 5 S-20 IOP 6 S-10 IOP 6 IOPs 5 -6 : Wind Speed profiles Outputs at 21 h 00 N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 24
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Inlet : WS - WD - Time IOP 5: 7. 47 - 148. 61 - 20 h 40 IOP 6: 4. 66 - 185. 11 - 20 h 40 IOP 6 IOP 5 S-20 IOP 5 S-10 IOP 5 S-20 IOP 6 S-10 IOP 6 IOP 5 IOP 6 IOPs 5 -6 : TKE profiles Outputs at 21 h 00 N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 25
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Inlet : WS - WD - Time IOP 7: 3. 18 - 212. 20 - 10 h 20 IOP 8: 3. 22 - 121. 18 - 10 h 20 IOP 9: 5. 69 - 157. 28 - 10 h 20 IOP 8 IOP 9 IOP 7 S-20 IOP 7 S-10 IOP 7 S-20 IOP 8 S-10 IOP 8 S-20 IOP 9 S-10 IOP 9 IOP 8 IOPs 7 -8 -9 : Wind Speed profiles Outputs at 10 h 40 N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 26
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Inlet : WS - WD - Time IOP 7: 3. 18 - 212. 20 - 10 h 20 IOP 8: 3. 22 - 121. 18 - 10 h 20 IOP 9: 5. 69 - 157. 28 - 10 h 20 IOP 8 IOP 7 IOP 9 IOP 8 IOP 9 S-20 IOP 7 S-10 IOP 7 S-20 IOP 8 S-10 IOP 8 S-20 IOP 9 S-10 IOP 9 IOP 7 IOPs 7 -8 -9 : TKE profiles Outputs at 10 h 40 N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 27
UDINEE Workshop Canadian Urban Dispersion Modeling System: Application to UDINEE Urban Lagrangian Stochastic model • uses Thomson's well-mixed 3 D model for fully inhomogenous Gaussian turbulence • particle trajectories are calculated using standard Euler integration • concentration at grid points and samplers are estimated with particle residence time For UDINEE: • Wind and turbulence fields from urban. STREAM (CFD) • 1. 5 M Lagrangian particles per emission (e. g. 6 M for IOP 9. 5) • puff volume: cylinder radius 2 m, Samplers: 1, 5, 6, 17 height 1. 3 m, base 0. 1 m = 16 m 3 • sampler volume 10 x 7 m 3 • average Lagrangian particle timestep 0. 025 s N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 28
UDINEE Workshop Conclusion CSSP-PCSS Ø Demonstration of Canadian Urban Dispersion Modeling prototype Ø The Work is ongoing to develop the concept of EC EERS as a 24/7 National reach back and resource center for provision of CBRN plume prediction in urban environment. Ø System was run successfully in prototype mode for Toronto Pan Americans Games, July 2015. Ø Preliminary results were produced, from Urban Dispersion International Evaluation Exercise (UDINEE). Ø Looking for Comprehensive Validation of the urban Flow and urban Dispersion Models against observations. Ø Looking for collaborations in urban modelling dispersion, and the best way to respond in an emergency. N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 29
UDINEE Workshop Urban Flow and Dispersion Modeling System: 3 D Flow over CN Tower in Toronto • Pan. Am Para. Pan. Am • 2015, Toronto • Panam -26 July 10 • Para. Panam -15 August 07 THANK YOU ! N. Benbouta. Dec. 15 2015. UDINEE Workshop. Ispra (Italy). P. 30
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