hydro period presentation 20070809
TRANSCRIPT
Hydroperiod Tool:Estimation of Inundation in Restored Kissimmee River
Floodplain
Lawrence SpencerSouth Florida Water Management District
Kissimmee Division
Hydroperiod:
Amount of time (days per year or percentage) that a habitat is inundated with water
Kissimmee River
•Drains Lake Kissimmee and Kissimmee Chain of Lakes (south of Orlando)
•Drains into Lake Okeechobee•Land Use: Orange Groves and Cattle Ranches
•Blackwater slow-moving river
•Meandered through 1 – 2 mile-wide floodplain
•Flat topography (30 ft/50 miles)
• Inundated over 300 days/yr
•Highly productive and diverse ecology
Channelized Kissimmee River:
•Controlled flooding well•Drained 60% of wetlands•Disturbed hydrologic cycle•Lowered plant diversity•Lowered fish and waterfowl diversity
Kissimmee Restoration:
•Backfill C-38 canal and restore/recarve channels
•Restore hydrology
Hydroperiod Toolfor Kissimmee River Restoration
Hydroperiod restoration fundamental to habitat restoration• Purpose of Tool: Evaluate critical habitat hydroperiods
quickly, with low overhead• Previously, analysis was provided through complex
models - costly and time intensive• Kissimmee scientists want to know:
• What does inundation look like day-to-day?• Are specific habitats being inundated as expected?• Based on hydroperiod, what sites should we sample?
Hydroperiod Tool Specs• Use monitoring point network and ArcGIS
interpolation tools to estimate floodplain inundation
• Interpolation methods estimate:• Floodplain/Habitat inundation depths• Inundation durations• Inundation extents
• Use statistical tools to evaluate:• Habitat-specific inundation depth and
duration• Whether hydrological goals are met.
Arc Hydro for SFWMD
Existing Arc Hydro Framework
Enhanced Arc Hydro Framework
for South Florida
FloodHydrology & Hydraulics
Operations DecisionSupport System
HydroperiodEstimation
Regional Simulation Model
HydroperiodModel
StageData
Digital ElevationModel (DEM)
Stage Stations
+
Hydroperiod: Number of days a given pixel is inundated
Habitat
Habitat Statistics
Space and Time in GISMap Animation/Feature Series
Stage
Time
Time Series
Attribute Series
xy
z
t1
t2
t3
Time-Indexed Raster
Hydroperiod Tool uses Model Builder Tools
Gives the tool more flexibility to meet changing needs• Users can create a custom tool with variable parameters• Ability to create a tool with set parameters for a process that
will be run often.• Ability to create a model to run a series of commands at one
time.• Users can create scripts that will loop through models or
commands.• Novice users can customize tools without having to write a
single line of code.• Most importantly for this project, future
enhancements are much easier to integrate into models than compiled code.
Hydroperiod Dialog
Hydroperiod Dialog Intro:
The tools have the following functionality:
Generate RastersClassify DepthsCalculate VolumeCell StatisticsZone 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.
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.
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.
Hydroperiod Tool Demo
Acknowledgments:South Florida Water Management District
Ken Stewart, Chris Carlson, Ken Konyha, Jim Cameron, Michele Maierhofer, Kurt Saari, Paul Ryan, Jenifer Barnes, Suelynn Dignard, Ron Mierau and many more.
Center for Research in Water Resources at University of Texas, Austin
Dr. David Maidment, Jennifer Sorenson, Alicia Fogg, Gil Strassberg, Venkatesh Merwade
Post Buckley Schuh & Jernigan (PBS&J)Jack Hampson, Mark Aurit, John Messer, Tim Brink, Raul Mercado, Rick Walker, Sarah Houghland
DHIMichael Blongewicz, Arnold Engelman
Restoration Status• Phase 1 of 4 completed in 2001
Backfilled 7.5 miles of canal Reclaimed 15 miles of river channel And 11,000 acres of wetlands
• Wetland hydrology partially re-established• Wetland plants rebounded
Native plants now cover 2-3 times area before restoration We expect further vegetation changes as hydrology is changed to
match pre-channelization conditions• Habitat for fish and waterfowl is greatly improved• Phases 2, 3, and 4 will backfill an additional 15 miles
of canal • All construction phases will be complete by 2012