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Arc Hydro for the Watershed Management Program at the Southwest Florida Water Management District

Arc Hydro for the Watershed Management Program at the Southwest Florida Water Management District . Presenters: Gordon McClung, P.E. Diana Burdick Jamison Janke, E.I. Nam Nguyen, E.I. Arc Hydro and GIS Implementation. Developed the SWFWMD’s Guidelines and Specifications for the

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Arc Hydro for the Watershed Management Program at the Southwest Florida Water Management District

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  1. Arc Hydro for the Watershed Management Program at the Southwest Florida Water Management District Presenters: Gordon McClung, P.E. Diana Burdick Jamison Janke, E.I. Nam Nguyen, E.I.

  2. Arc Hydro and GIS Implementation • Developed the SWFWMD’s Guidelines and Specifications for the establishment of standardized procedures for the Watershed Management Program and GIS (ArcInfo - ESRI) database for storing/maintaining data. • Coverage/shapefile • Related tables • Establishes data standards for data acquisition, spatial identification and storage of data.

  3. Arc Hydro and GIS Implementation • September 2002 – March 2003: • Internal requirements analysis • March 2004: • Database design workshop • Application prioritization workshop • Critical tools overview • December 2004 • Database Design • Begin loading Database • February 2005 • Tools Delivered • Begin Testing on Small Watersheds • Spring/Summer 2005 • Migrate to ArcGIS Version 9 • Current • Revisions to database design • Standardization of terminology • Identification of workflow

  4. Arc Hydro Database Design 4 feature datasets 21 feature classes 29 object classes Domains/relationship classes

  5. Arc Hydro Database Design Database design issues: • Reviewed current coverage/shapefile format for migration to GDB • “Enterprise” maintains the current environment while project information is maintained by PGDBs. • Index layer maintained in Enterprise that points to project PGDB location

  6. Arc Hydro Application Development Four “critical” tools identified: • Management of HydroID between PGDB and SDE • GeoRAS import/export from PGDB/SDE to define future import/export tools • Ingest of OneRain data • Internally drained connectivity

  7. Arc Hydro Application Development

  8. Arc Hydro and GIS Implementation Other activities: • Development of ArcMap template for current projects so migration to geodatabase easier • Testing and training • Coordinating with ESRI for terrain data in geodatabase • Implementation of historical 15 minute OneRain data from 1993

  9. Arc Hydro and GIS Implementation

  10. LiDAR SWFWMD Import of Terrain deliverables into GDB format Dealing with .5 to 1.5 million points per Sq. Mile

  11. Terrain Geodatabase Current Terrain = Coverage and TINS Future with Terrain Geodatabase = GeoDatabase Feature Dataset and Terrain

  12. Workflow and Initial GIS Layers NWI Aerial Roads Soils Water

  13. Terrain – DEM or TIN 5 feet cell size raster

  14. Subbasins & ConnectivityGenerated from ArcHydro Tools

  15. Subbasins & Connectivity

  16. Connectivity – A hydronode, in pink, is placed here manually identifying a hydraulic structure during Watershed Evaluation phase

  17. Field Reconnaissance

  18. HydroPoints – Additional xyz information collected

  19. Should a new TIN/DEM be generated???

  20. Field Photo

  21. Hydraulic Elements HydroElementID = 118 NodeID = 7 HydroElementID = 119 NodeID = 7 HydroElementID = 117 NodeID = 7 HydroNode HydroID = 7 Culvert NodeID = 7 HydroID = 119 Culvert NodeID = 7 HydroID = 117 Culvert NodeID = 7 HydroID = 118 HydroElementID = 117 NodeID = 7 HydroElementID = 119 NodeID = 7 HydroElementID = 118 NodeID = 7 HydroNode identifies a structure. The structure is made up of multiple hydraulic elements. Hydraulic Elements are made up of multiple hydropoints.

  22. Model SpecificReach/Junction

  23. Questions?

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