Hydro Period Presentation 20070809


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  • For the South Florida Water Management District, it’s an ongoing data-gathering quest to best manage and improve water quality, flood control, natural systems and water supply . Like many other water agencies, the District relies on dozens of tools and technologies from monitoring stations to GIS and hydraulic/hydrologic modeling solutions to support the numerous projects ongoing at any given time. For AHED we started with four key projects at the District to identify their common needs and enhance Arc Hydro to meet them.
  • NOTES: Allows hydroperiod conditions to be evaluated over time Produces hydroperiod time series graphs Supports evaluation of vegetation data relative to hydroperiod Supports simple statistical analysis of sample observations Supports extrapolation of sample data to similar units Supports the comparison of pre- and post-restoration conditions
  • Hydro Period Presentation 20070809

    1. 1. Hydroperiod Tool: Estimation of Inundation in Restored Kissimmee River Floodplain Lawrence Spencer South Florida Water Management District Kissimmee Division
    2. 2. Hydroperiod: Amount of time (days per year or percentage) that a habitat is inundated with water
    3. 3. <ul><li>Kissimmee River </li></ul><ul><li>Drains Lake Kissimmee and Kissimmee Chain of Lakes (south of Orlando) </li></ul><ul><li>Drains into Lake Okeechobee </li></ul><ul><li>Land Use: Orange Groves and Cattle Ranches </li></ul>
    4. 4. <ul><li>Blackwater slow-moving river </li></ul><ul><li>Meandered through 1 – 2 mile-wide floodplain </li></ul><ul><li>Flat topography (30 ft/50 miles) </li></ul><ul><li>Inundated over 300 days/yr </li></ul><ul><li>Highly productive and diverse ecology </li></ul>
    5. 6. <ul><li>Channelized Kissimmee River: </li></ul><ul><li>Controlled flooding well </li></ul><ul><li>Drained 60% of wetlands </li></ul><ul><li>Disturbed hydrologic cycle </li></ul><ul><li>Lowered plant diversity </li></ul><ul><li>Lowered fish and waterfowl diversity </li></ul>
    6. 7. <ul><li>Kissimmee Restoration: </li></ul><ul><li>Backfill C-38 canal and restore/recarve channels </li></ul><ul><li>Restore hydrology </li></ul>
    7. 9. Hydroperiod Tool for Kissimmee River Restoration <ul><li>Hydroperiod restoration fundamental to habitat restoration </li></ul><ul><li>Purpose of Tool: Evaluate critical habitat hydroperiods quickly, with low overhead </li></ul><ul><ul><li>Previously, analysis was provided through complex models - costly and time intensive </li></ul></ul><ul><li>Kissimmee scientists want to know: </li></ul><ul><ul><li>What does inundation look like day-to-day? </li></ul></ul><ul><ul><li>Are specific habitats being inundated as expected? </li></ul></ul><ul><ul><li>Based on hydroperiod, what sites should we sample? </li></ul></ul>
    8. 10. Hydroperiod Tool Specs <ul><ul><li>Use monitoring point network and ArcGIS interpolation tools to estimate floodplain inundation </li></ul></ul><ul><ul><li>Interpolation methods estimate: </li></ul></ul><ul><ul><ul><li>Floodplain/Habitat inundation depths </li></ul></ul></ul><ul><ul><ul><li>Inundation durations </li></ul></ul></ul><ul><ul><ul><li>Inundation extents </li></ul></ul></ul><ul><ul><li>Use statistical tools to evaluate: </li></ul></ul><ul><ul><ul><li>Habitat-specific inundation depth and duration </li></ul></ul></ul><ul><ul><ul><li>Whether hydrological goals are met. </li></ul></ul></ul>
    9. 11. Arc Hydro for SFWMD Existing Arc Hydro Framework Enhanced Arc Hydro Framework for South Florida Flood Hydrology & Hydraulics Operations Decision Support System Hydroperiod Estimation Regional Simulation Model
    10. 12. Hydroperiod Model Stage Data Digital Elevation Model (DEM) Stage Stations + Hydroperiod: Number of days a given pixel is inundated Habitat Habitat Statistics
    11. 13. Space and Time in GIS Map Animation/ Feature Series Stage Time Time Series Attribute Series x y z t 1 t 2 t 3 Time-Indexed Raster
    12. 14. Hydroperiod Tool uses Model Builder Tools <ul><li>Gives the tool more flexibility to meet changing needs </li></ul><ul><ul><li>Users can create a custom tool with variable parameters </li></ul></ul><ul><ul><li>Ability to create a tool with set parameters for a process that will be run often. </li></ul></ul><ul><ul><li>Ability to create a model to run a series of commands at one time. </li></ul></ul><ul><ul><li>Users can create scripts that will loop through models or commands. </li></ul></ul><ul><ul><li>Novice users can customize tools without having to write a single line of code. </li></ul></ul><ul><ul><ul><ul><ul><li>Most importantly for this project, future enhancements are much easier to integrate into models than compiled code. </li></ul></ul></ul></ul></ul>
    13. 15. Hydroperiod Dialog Hydroperiod Dialog Intro: The tools have the following functionality: Generate Rasters Classify Depths Calculate Volume Cell Statistics Zone Statistics Each tool has a limited number of parameters the user can set through this dialog. Advanced users can set further parameters using Model Builder.
    14. 16. View Ponded Depths with Tracking Analyst After running the “Classify Depths” tool, you can view the depths over time using the ESRI’s Tracking Analyst Extension. Turn on the Tracking Analyst Extension (Tools/Extensions menu) Turn on the Tracking Analyst Toolbar (View/Toolbars menu) Click the Add data button and select the PondedDepth feature class from your geodatabse (source files folder) Set the appropriate parameters and view the animation.
    15. 17. DHI TimeSeries Tool The DHI TimeSeries tool enables users to import timeseries data from a variety of different data sources including the following: -DBHydro -ArcHydro -Geodatabase -Excel -and many others… After importing the timeseries data, users can view the data over time with the aid of graphs and tables.
    16. 19. Hydroperiod Tool Demo
    17. 20. Acknowledgments: <ul><li>South Florida Water Management District </li></ul><ul><ul><ul><li>Ken Stewart, Chris Carlson, Ken Konyha, Jim Cameron, Michele Maierhofer, Kurt Saari, Paul Ryan, Jenifer Barnes, Suelynn Dignard, Ron Mierau and many more. </li></ul></ul></ul><ul><li>Center for Research in Water Resources at University of Texas, Austin </li></ul><ul><ul><ul><li>Dr. David Maidment, Jennifer Sorenson, Alicia Fogg, Gil Strassberg, Venkatesh Merwade </li></ul></ul></ul><ul><li>Post Buckley Schuh & Jernigan (PBS&J) </li></ul><ul><ul><ul><li>Jack Hampson, Mark Aurit, John Messer, Tim Brink, Raul Mercado, Rick Walker, Sarah Houghland </li></ul></ul></ul><ul><li>DHI </li></ul><ul><ul><ul><li>Michael Blongewicz, Arnold Engelman </li></ul></ul></ul>
    18. 22. Restoration Status <ul><li>Phase 1 of 4 completed in 2001 </li></ul><ul><ul><li>Backfilled 7.5 miles of canal </li></ul></ul><ul><ul><li>Reclaimed 15 miles of river channel </li></ul></ul><ul><ul><li>And 11,000 acres of wetlands </li></ul></ul><ul><li>Wetland hydrology partially re-established </li></ul><ul><li>Wetland plants rebounded </li></ul><ul><ul><li>Native plants now cover 2-3 times area before restoration </li></ul></ul><ul><ul><li>We expect further vegetation changes as hydrology is changed to match pre-channelization conditions </li></ul></ul><ul><li>Habitat for fish and waterfowl is greatly improved </li></ul><ul><li>Phases 2, 3, and 4 will backfill an additional 15 miles of canal </li></ul><ul><li>All construction phases will be complete by 2012 </li></ul>