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Mark Brush CHRP 2012 Managers’ Workshop

Update on EcoOBM (Officer Box Model, for Physical Exchanges) and Translation to Criteria-Relevant Metrics. Mark Brush CHRP 2012 Managers’ Workshop. Officer Box Model: exchanges = f (freshwater, salinity). Fast run times Exchanges independent of ROMS Enables long term runs: 2001-09.

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Mark Brush CHRP 2012 Managers’ Workshop

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  1. Update on EcoOBM (Officer Box Model, for Physical Exchanges) and Translation to Criteria-Relevant Metrics Mark Brush CHRP 2012 Managers’ Workshop

  2. Officer Box Model: exchanges = f (freshwater, salinity) • Fast run times • Exchanges independent of ROMS • Enables long term runs: 2001-09 • 7 gauged rivers • Ungauged area • extrapolated • WWTFs • PPT and Evaporation

  3. Box Model: Exchanges = f (freshwater, salinity) Insomniacs NuShuttle Buoys + +

  4. EcoOBM: Exchanges Compared to ROMS 2D box model 3D ROMS 2006 vs. Source Box Fraction of Water Rogers (2008) Box Model ROMS Destination Box

  5. EcoOBM: Surface Layer Chl-a mg m-3

  6. EcoOBM: Phyto NPP g C m-2 d-1

  7. EcoOBM: Bottom DO g m-3

  8. Stochastic Simulation Standard Run % Chance of Violations: 50% Load Reduction Bottom O2

  9. Empirical Linkages to Assess State Criteria: Temporal Variability Buoy Data

  10. Empirical Linkages to Assess State Criteria: Spatial Variability Insomniacs Data

  11. CHRP II Funding • Add 2010+ for a decade-long model run • (2001-2010+) • Compare OBM and ROMS exchanges for • 2007+(currently 2006 only) • Develop functions for salinity and pycnocline • depth vs. physical forcing (i.e. FW • loading); add variable hypsography • Scenario runs in collaboration with RI DEM • Online hosting of EcoOBM

  12. CHRP II Funding + selected runs in Greenwich Bay model to assess role of macroalgae in hypoxia

  13. Current EcoOBM Applications • Proposal pending: • Bush/Gundpowder Rivers, MD • Neuse River, NC • Pensacola/Escambia Bays, FL • Lake dissertation chapter: • Narr Bay vs. York River vs. New River (including MPB)

  14. Online Model Hosting Capability has been developed: http://www3.vims.edu/netsim/netsims/brush/wrr_model_apr_2011/index.html

  15. Online Model Hosting Capability has been developed: http://www3.vims.edu/netsim/netsims/brush/wrr_model_apr_2011/index.html

  16. Online Model Hosting Preliminary EcoOBM version:

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