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) 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 OHHI Beach Closure Modeling Group Dima Beletsky Hector Bravo Shannon Briggs Tom Croley Walter Frick Sheridan Haack Greg Lang Sandra McLellan Mike McCormick Meredith Nevers Mantha Phanikumar Phil Roberts Dave Schwab Richard Whitman Chin Wu Stephen Henderson UM UWM MDEQ NOAA/GLERL USEPA USGS NOAA/GLERL UWM NOAA/GLERL USGS MSU GTU NOAA/GLERL USGS UW UM/CILER CEGLHH - Beach Closure Forecasting Group Activity Table G L ERL CI L ER MSU USGS EP A GT UWM UW L ab e x per im ents F ield exper im en ts H y dr o lo gica l m o de li ng H y dr o d yn ami c (tra nsp ort) m ode li n g Near -sh ore (tra nsp ort) m o de li ng Near -fi eld (disc harge) m o de li ng Bac ter iolo gica l pr ocess e s m o de li ng Bac ter ial s ources Beac h c lo sure fo recas ting Beac h sa m pli n g X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 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 GLERL/CILER 2006 Progress 1. Implemented and tested nested grid hydrodynamic model for Burns Ditch 2. Began development of nested grid hydrodynamic models for Milwaukee and Grand Haven 3. Conducted major field experiment at Grand Haven, Michigan Lake Michigan Model Grids Lakewide grid (POM model) Coupled models nested grids + Burns Ditch nested model grid Burns Ditch 100m computational grid 24 km 6 km 2005 Burns Ditch current meter deployment RDI ADCP SonTek ADP 2005 Burns Ditch current meter deployment 2006 Burns Ditch current meter deployment 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 Burns Ditch nested grid model Surface water temperature QuickTime™ and a Cinepak decompressor are needed to see this picture. Longshore currents (18 June - 7 August, 2005) Nested grid model (3-d) RDI ADCP Great Lakes Coastal Forecasting System - Operational Nowcast 20 day sample using vertically averaged currents QuickTime™ and a Cinepak decompressor are needed to see this picture. Grand Haven 100 m computational grid Grand Haven bathymetric grid Grand Haven SHOALS data 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 CEGLHH - Beach Closure Forecasting Group Field Sites and Activities 2005 M il waukee 2006 U W M -b ac ter ia U W M -m ode li n g G L E R L -m o de li n g 2007 Bur n s D itch G L ER L -ph y sics USGS -b ac ter ia Gra n d R iv er G L ER L -p h y sics GT -p h y sics MSU -bac ter ia USGS -p hy sics USGS -b ac ter ia Tra il Creek