PROJECT OBJECTIVE
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Transcript of PROJECT OBJECTIVE
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PROJECT OBJECTIVE• To identify and evaluate a suite of management scenarios to address the Old Tampa Bay issues using integrated modeling tools
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UNDERSTANDING & APPROACH
• Integrated set of models– response of key ecological
attributes and stressors to various scenarios
– spatial and temporal resolution – defensible, quantitative prediction– assessment of the net ecological
changes expected due to the scenarios examined
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UNDERSTANDING & APPROACHTASK 1
Review & Select Preliminary Scenarios
TASK 2Data Review &
Adequacy Assessment
“Go-No Go” Decision
PointTASK 3
Integrated Model Plan
TASK 4Model Formulation &
TestingTASK 5
Model Applications
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TASK 1
• Old Tampa Bay Management Action Scenario Report– Scenarios– Key ecological attributes
• OTB Working Group– Consensus building
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TASK 2• Existing Information Summary Report–Data •Ambient WQ•Flows•Loadings•Seagrass
–Studies•PCEF•Safety Harbor Sediment Accumulation
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TASK 2• Data Assessment Report–Data adequacy to predict ecological responses–Relative ranking of scenarios:•ecological benefits•constraints•project costs
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Data Needs for ModelParameterization,
Calibration/Validation
• Much of the specific data/information needed in our data warehouse
• Issues with national databases• Data comparability• Resolution of data gaps • More detailed information in
the handout
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How will proposed approach address wind-driven and
sediment dynamics?
• Shallow water wind-wave model integrated within hydrodynamic model
• Spatially/temporally varying wind field input
• Allowing computation of spatially and temporally varying bottom shear stress
• Linkage to water quality model and to optical model
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How will proposed approach address both varying temporal and spatial scales? Implications of potential modifications on our proposed budget • Proposing a 10-year simulation• Hydrodynamic and water quality
models timesteps of 2-5 minutes – diel DO
• Proposed various spatial grids to address specific questions
• These considerations are built into our proposed budget
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Hydrologic diversions, operational modifications, and causeway/bridge modifications
• Watershed modeling addresses operation of structures
• Sufficient data to address diversions directly
• Spatial resolution of model grids to resolve areas of impact
• Hydrodynamic and watershed models will pass changes to WQ model
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Redirecting existing WWTP surface water discharges to
reuse or other beneficial uses• Grizzle-Figg Act - substantial
load reductions• 11% of OTB TN load from
WWTPs remains• Potential beneficial uses:
Northwest Regional Water Reclamation Facility Reuse System (Orange County, FL)
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Implementation of non-structural and structural BMPs• Adjustment of EMCs for specific
land use types and jurisdictions• Development of a BMP layer• Feasibility analysis for regional
BMPs• Inclusion of LID practices for a
broader based plan
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TASK 3• Integrated Model Plan– prioritized scenarios– modeling objectives– model selection– model calibration, validation, skill assessment, & uncertainty analysis– model output and analytical approaches
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TASK 3• Modeling Strategy– A 10-year
hydrodynamic/water quality model run to capture wet, dry, and average years
– Able to examine variability in impacts of stressors on optical and habitat models
– Water quality model hindcast
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Proposed Model Linkages(Question 4)
WatershedINTB
LIGHT & HABITATMODELS
Rainfall, Landuse,
BMPs, etc.
Water Quality/SFM
RCA
Hydrograph
Pollutograph
Hydro/SedTranECOMSE
D
Sal, T, H, Ux,y,z,Ex,y,z
Vsettling, Vdepo, Vresusp
Sal, T, H, Vshear
Chlorophyll, turbidity, DO, CDOM, Sediment %POC, H2S, etc.
Winds, Isolar,
Humidity, etc.
WWWTP,
Watmo, Isolar, etc.
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TASK 3• Quality Assurance Plan– project organization (stakeholders, etc.,)– project tasks and schedule– project objectives– modeling and data quality objectives– model calibration, validation, and
skill assessment methods– model user’s manual– QC protocols
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IntegratedNorthernTampa BayModel
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ECOMSEDModelGrid
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