This document provides an update on the HGS model development and Phase II project. It includes the following key points:
- The physically-based HGS model accounts for all surface and subsurface water interactions within the Turkey River Watershed, which contains over 12,000 nodes. The model considers factors like evapotranspiration, precipitation, stream flow, land use, and topography.
- Monitoring of stream flow at key locations will help establish baseline conditions and assess the impact of implemented projects on flood reduction and water quality. Three monitoring platforms will be installed to validate precipitation events.
- Phase II will focus on selecting project sites, designing and constructing projects like ponds, wetlands, and floodplain easements
Unit-IV; Professional Sales Representative (PSR).pptx
IWP 6.19.2013 meeting
1.
2.
3. HGS update – Model development, inputs,
outputs
Phase II project types, site selection
Monitoring
Timeline
Next Steps
Beaver
Creek
Otter Creek
South
Chequest
Acres
11,089
30,213
20,072
County
Floyd
Chickasaw
Fayette
Davis
West Union
Elgin
n/a
Communities Bassett
Colwell
12. Surface Water Hydrology
USGS 05411850 Turkey River near Eldorado, IA
5000.0
4500.0
Daily Mean Q (cfs)
4000.0
3500.0
3000.0
2500.0
6/9/2008
6/8/2008
4/25/2008
6/10/2008
4/26/2008
6/13/2008
6/12/2008
4/19/2008
6/11/2008
35495.7
13810.7
10895.2
10740.6
9122.1
7989.9
6684.8
5267.9
5249.0
2000.0
1500.0
1000.0
500.0
0.0
10/01/07 06/07/08 02/12/09 10/20/09 06/27/10 03/04/11 11/09/11 07/16/12 03/23/13
Date
Otter Creek at Elgin / Estimated with Regional Formulas
500.0
6/9/2008
6/8/2008
1336.4
530.4
Daily Mean Q (cfs)
400.0
300.0
200.0
100.0
0.0
10/01/07 06/07/08 02/12/09 10/20/09 06/27/10 03/04/11 11/09/11 07/16/12 03/23/13
Date
Computing Daily Mean Streamflow at Ungaged Locations in Iowa
by using the Flow Anywhere and Flow Duration Curve Transfer
Statistical Methods
By S. Mike Linhart, Jon F. Nania, Curtis L. Sanders, Jr., and Stacey A.
Archfield
25. Next Steps
• Evapotranspiration (based on land use maps and literature)
• Snow melting?
• Subsurface/Infiltration (properties from driller’s log and
soil type maps)
• Go from point precipitation to areal precipitation. Radar?
• Work on the DEM
• Calibrate against daily Q from regional formulas?
25