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OHHI Beach Modeling Group Meeting - October 25, 2006

OHHI Beach Modeling Group Meeting - October 25, 2006. OHHI Beach Closure Modeling Group Meeting - Agenda 8:00 Introduction and review of modeling approach (Schwab) 8:30 Report on National Beach Conference and needs of beach managers (Sonia Joseph)

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OHHI Beach Modeling Group Meeting - October 25, 2006

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  1. OHHI Beach Modeling Group Meeting - October 25, 2006

  2. OHHI Beach Closure Modeling Group Meeting - Agenda 8:00 Introduction and review of modeling approach (Schwab) 8:30 Report on National Beach Conference and needs of beach managers (Sonia Joseph) 8:50 Report on Oracle web collaboration tools for Beach Modeling Group (Lang) 9:00 Summary of 2006 activities (Break from 9:45-10:00, Lunch 11:30-12:30) 1. Burns Ditch - Schwab/Beletsky/Lang - Whitman/Frick 2. Grand Haven/Grand River - McCormick - Roberts - Phani 3. Milwaukee Harbor area - Bravo/McLellan 4. Other - Chin Wu 1:45-2:00 Break 2:00 Discussion of plans for 2007 3:00 Wrap-up

  3. OHHI Beach Closure Modeling Group Dima Beletsky UMHector Bravo UWMShannon Briggs MDEQTom Croley NOAA/GLERLWalter Frick USEPASheridan Haack USGSGreg Lang NOAA/GLERLSandra McLellan UWMMike McCormick NOAA/GLERLMeredith Nevers USGSMantha Phanikumar MSUPhil Roberts GTU Dave Schwab NOAA/GLERLRichard Whitman USGSChin Wu UWStephen Henderson UM/CILER

  4. CEGLHH - Beach Closure Forecasting Group Activity Table

  5. Beach Closure Modeling Approach • GLCFS Boundary Conditions • Currents and temperatures • Waves • Meteorology • Schwab • Hydrology (Tributary Flow) • USGS Streamflow • GLERL Models • Croley, Phanikumar • Pathogen Loading • Tributaries • Shoreline NPS • Reuspension • Haack, Whitman, Phanikumar, McLellan • Nearshore Hydrodynamics and Waves • POMGL • NearCOM? • Beletsky, Schwab, Bravo, Wu • Near Field Mixing • Needs loadings and ambient conditions • Roberts, Frick • Bacterial Transport and Fate • Same grid as hydrodynamics? • Needs pathogen loading, near field mixing & hydrodynamics • Lagrangian/ Eulerian? • Phanikumar, Roberts, Frick, Whitman • Beach Closure Model • Probabilistic? • GUI/Communications • Frick, Whitman

  6. GLERL/CILER 2006 Progress • Implemented and tested nested grid hydrodynamic model for Burns Ditch • Began development of nested grid hydrodynamic models for Milwaukee and Grand Haven • Conducted major field experiment at Grand Haven, Michigan

  7. Lake Michigan Model Grids Lakewide grid (POM model) Coupled models nested grids + Burns Ditch nested model grid

  8. Burns Ditch 100m computational grid 24 km 6 km

  9. 2005 Burns Ditch current meter deployment RDI ADCP SonTek ADP

  10. 2005 Burns Ditch current meter deployment

  11. 2006 Burns Ditch current meter deployment

  12. Burns Ditch nested grid model 2005 hindcast (JD 121-340) - Developed open boundary version of pomgl - Extracted b.c.’s from 2 km L. Michigan whole-lake simulation (surface meteorology, currents, water levels, temperatures) Burns Ditch flow data obtained from USGS gage 2-d (u,v substitution) 3-d barotropic (inflow: substitution, outflow: radiation) 3-d baroclinic (inflow: substitution, outflow:radiation, u,v,T) Validation with adcp data

  13. Burns Ditch nested grid model Surface water temperature

  14. Longshore currents (18 June - 7 August, 2005) Nested grid model (3-d) RDI ADCP

  15. Great Lakes Coastal Forecasting System - Operational Nowcast 20 day sample using vertically averaged currents

  16. Grand Haven 100 m computational grid

  17. Grand Haven bathymetric grid Grand Haven SHOALS data

  18. GLERL/CILER 2007 Plans • Operate Burns Ditch real-time nearshore circulation model • Continue Burns Ditch 2005 validation • Develop Grand Haven nested grid model • Incorporate bacterial dynamics model into nested grid model

  19. CEGLHH - Beach Closure Forecasting Group Field Sites and Activities

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