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EFDC Model Training

EFDC OVERVIEW. Development HistoryCapabilitiesHydrodynamicsWater Quality-EutrophicationSediment-Toxic Transport and FateNear Field MixingPrevious ApplicationsWater Quality Application. ENVIRONMENTAL FLUID DYNAMICS CODE. The EFDC Model Is a Public Domain Surface Water Modeling SystemIncorpora

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EFDC Model Training

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    1. EFDC Model Training Overview of the EFDC Model Model Documentation Model Software Model Files and Configuration Armand Bayou and Arroyo Colorado Applications Additional Topics

    2. EFDC OVERVIEW Development History Capabilities Hydrodynamics Water Quality-Eutrophication Sediment-Toxic Transport and Fate Near Field Mixing Previous Applications Water Quality Application

    3. ENVIRONMENTAL FLUID DYNAMICS CODE The EFDC Model Is a Public Domain Surface Water Modeling System Incorporating Fully Integrated Hydrodynamic, Water Quality and Sediment-Contaminant Simulation Capabilities EFDC Is Extremely Versatile and Can Be Used for 1, 2, or 3-Dimensional Simulation of Rivers, Lakes, Estuaries, Coastal Regions and Wetlands The Single Source Code Implementation Eliminates the Need for Linking Multiple Models to Arrive at an Effective Modeling Solution

    4. EFDC DEVELOPMENT HISTORY Developed at Virginia Institute of Marine Science with Primary Support from State of Virginia Additional Support from EPA and NOAA Presently Maintained by Tetra Tech, Inc. Currently used by Federal, State and Local Agencies, Consultants and Universities US EPA Currently Supporting Development of EFDC-Based Surface Water Modeling Toolkit

    5. EFDC CAPABILITIES Three-Dimensional Hydrodynamics with Coupled Salinity and Temperature Transport Directly Coupled Water Quality-Eutrophication Model Directly Coupled Toxic Contaminated Sediment Transport and Fate Model Integrated Near-field Mixing Zone Model Preprocessing Software for Grid Generation and Input File Creation Postprocessing Software for Analysis, Graphic and Visualization

    7. EFDC HYDRODYNAMICS Fully Three-Dimensional with 2-D and 1-D Options Boundary Fitted Curvilinear Grid Includes Turbulence Closure Model Highly Efficient Semi-Implicit Solution Functionally Equivalent to POM/ECOM CH3D-WES and TRIMM

    9. Additional Hydro Capabilities 1-D Channel Network Option Using HEC Type Cross Section Data Hydraulic Control Structures Wave Boundary Layers and Wave Induced Currents

    10. EFDC WATER QUALITY-EUTROPHICATION Directly Coupled to Hydrodynamics Based on CE-QUAL-IC (Chesapeake Bay WQ Model) Kinetics 21 Water Column State Variables Including Multiple Classes of Algae and Organic Carbon, Nitrogen and Phosphorous Includes 27 State Variable Sediment Diagenesis Sub-model Reduced Number of State Variable Version Equivalent to WASP5

    12. EFDC WQ State Variables 1) cyanobacteria 2) diatom algae 3) green algae 4) refractory particulate organic carbon 5) labile particulate organic carbon 6) dissolved carbon 7) refractory part. organic phosphorus 8) labile particulate organic phosphorus 9) dissolved organic phosphorus 10) total phosphate 11) refractory part. organic nitrogen 12) labile part. organic nitrogen 13) dissolved organic nitrogen 14) ammonia nitrogen 15) nitrate nitrogen 16) particulate biogenic silica 17) dissolved available silica 18) chemical oxygen demand 19) dissolved oxygen 20) total active metal 21) fecal coliform bacteria 22) macroalgae

    13. EFDC Water Quality Schematic

    14. EFDC SEDIMENT DIAGENESIS MODEL Developed by DiToro & Fitzpatrick for Chesapeake Bay Model 27 state variables and fluxes Three basic processes: Depositional flux of POM from water column Diagenesis (decay) of POM in sediments Flux of substances produced by diagenesis Benthic sediments represented by 2 layers Upper layer can be oxic or anoxic Lower layer is always anoxic

    15. Sediment DiagensisModel Schematic

    16. EFDC SEDIMENT AND TOXICS TRANSPORT Multiple Size Class Cohesive and Noncohesive Sediment Transport Includes Sediment Bed Geomechanics with Consolidation Coupled with Spectral Wave Model for Wave Induced Resuspension Simulates Water Column and Bed Heavy Metal and Toxic Organic Compounds Equilibrium Partitioning and Reactions

    20. EFDC NEAR-FIELD MIXING Embedded Near-field Mixing Submodel Represents Outfalls as Buoyant Jets Capabilities Similar to CORMIX Updates Multiple Sources Under Varying Ambient Conditions Directly Coupled to Far Field WQ and Sediment-Toxics Submodels

    21. EFDC APPLICATIONS Rivers - Blackstone (MA), Ohio (WVA), Duwamish (WA), Christina River (DE), Yazoo River (MS), Housatonic (MA), Chattahoochee (GA) Lakes - Lake Okeechobee (FL), Conowingo (MD), Ten Killer (OK) Wetlands - South Florida Water Conservation Areas, Everglades Stormwater Treatment Areas Estuaries - Chesapeake Bay, James River (VA), York River (VA), Potomac River (MD), Peconic Bay (NY), Indian River Lagoon (FL), Puget Sound, San Francisco Bay, Morro Bay (CA), Mobile Bay (AL), Neuse River (NC), Cape Fear (NC)

    22. EFDC APPLICATIONS Coastal Regions - Atlantic Shelf (NC), Vero Beach (FL), Western Australian Shelf, Nan Wan Bay (Taiwan), Arabian Gulf, Wadden Sea (Germany), St. Louis Bay (MS)

    23. EFDC Documentation Hydro Theory - (Hamrick, 1992) Eutrophication Theory - (Park, 1995) Hydro Users Manual - (Hamrick, 1996) Short Eutro Theory - (Tt, 1998) Numerical Schemes - (Hamrick & Wu) Sediment-Toxics - (Tt, 1999)

    24. EFDC Software EFDC.F - F77 Source Code EFDC.COM - Common Block Include File EFDC.PAR - Parameter Statement Include File

    25. EFDC Support Software GEFDC.F - Grid Generator SIEFDC.F - Spatial Initialization LSHS.F - Scalar Harmonic Analysis LSHU.F - Vector Harmonic Analysis BCEFDC.F - Open Boundary Condition Identification

    26. EFDC Support Software ATEFDC.F - Time Series Analysis PROCONH.F - Scalar Contouring and Images PROVELH.F - Vector Plotting

    27. EFDC Graphics Support Noesys MATLAB Tecplot GRADS

    28. Model Configuration Data Structure Input Data Files Examples

    29. EFDC Data Structure Spatial Variables A(I,J,K) -> A(L,K) I = pseudo x J = pseudo y K= stretched vertical layer L=L(I,J) single index in horizontal

    30. Spatial Input Files cell.inp - cell type file celllt.inp - auxillary cell type file dxdy.inp - horizontal cell dimensions, depth, bottom elevation, roughness lxly.inp - horizontal cell center coordinates and cell orientation gcellmap.inp - graphics mapping file

    33. Creating Spatial Files cell.inp - conceptualization of horizontal grid dxdy.inp - custom, gefdc.f, or toolkit grid generator lxly.inp - same as dxdy.inp gcellmap.inp - gefdc.f

    34. Other Spatial Files mask. inp - inserts thin barriers mappgns.inp - specifies period grids along north-south or breaks in grid in north-south (J) direction moddxdy.inp - modifies cell dimensions orginally specified in dxdy.inp amap.inp & wmap.inp - atmospheric and wind map files

    35. Initial Condition Files Salt.inp temp.inp dye.inp sedw.inp sndw.inp toxw.inp sedb.inp sndb.inp Toxb.inp wqwcrst.inp wqsdrst.inp All can be created with SIEFDC.F

    36. Time Series Input Files Aser.inp - atmos. Wser.inp - wind qser.inp - flow sser.inp -salt tser.inp - temp dser.inp - dye sdser.inp - coh sed snser.inp - noncoh Txser.inp - toxics cwqsr##.inp - water quality variables wqpsl.inp - water quality sources Cut and Paste Creation

    37. Processes Files Qctl.inp - hydraulic control structures gwater.inp - groundwater interaction vege.inp - vegetation resistance wavebl.inp - wave-current boundary layers wavesx.inp - wave induced currents

    38. Run Control Files Efdc.inp - master input file wq3dwc.inp - water quality input wq3dsd.inp - sediment diagensis restart.inp - hydrodynamic restart wqwcrst.inp - water quality restart wqsdrst.inp - sediment diagensis restart file

    39. Model Setup Construct Spatial Files Construct Time Series Files Configure efdc.inp File Test Hydrodynamics Configure wq3dwc.inp and wq3dsd.inp Files Test Water Quality

    40. EFDC Output Options Full 3D Spatial Dump of Selected Variables at Specified Time Intervals Horizontal Plane Scalar and Vector Plotting Output Files Vertical Plane Scalar and Vector Output Files Time Series and Grab Sample Files

    41. 3D Spatial Output Files - NAM3d##.asc or NAM3d##.bin NAM - Variable Name ie sal or uuu asc - ascii text file bin - binary file output can be scaled integer or floating point

    42. Horizontal Plane Graphic XXXconh.out - scalar contouring or image generation data for variable XXX velvech.out - vector plot data both file are ascii column data proconh.f and provelh.f process these file to generate sequential snapshots for importing into 2D graphics

    43. Time Series Output XXXts##.out - time series of variable XXX Can be directly plotted using xy plotting software or a spreadsheet

    44. EFDC SURFACE WATER MODELING TOOLKIT Presently Under Development WINDOWS Interface GIS Based Data Management System User Friendly Model Setup, Execution, and Simulation Evaluation Will Be Compatible With BASINS

    45. SurfGraphs Surface Water Modeling Graphics System Defines Shape File for Model Cell in Horizontal and Along Vertical Slices Model Data Output as BMD Files Designed for Use with CE-QUAL-W2, EFDC, and WASP

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