web-based watershed decision support and planning tools
DESCRIPTION
Web-based Watershed Decision Support and Planning Tools. Bernie Engel Purdue University. Web-based DSS Tools. Online Watershed Delineation L-THIA & L-THIA LID Watershed Management Systems Burns Ditch (Indiana) Swan Creek (Ohio) Flow and Load Duration Curves. L-THIA Model. - PowerPoint PPT PresentationTRANSCRIPT
Web-based DSS ToolsWeb-based DSS Tools
• Online Watershed DelineationOnline Watershed Delineation
• L-THIA & L-THIA LIDL-THIA & L-THIA LID
• Watershed Management SystemsWatershed Management Systems– Burns Ditch (Indiana)Burns Ditch (Indiana)– Swan Creek (Ohio)Swan Creek (Ohio)
• Flow and Load Duration CurvesFlow and Load Duration Curves
L-THIA ModelL-THIA Model
• Long-Term Hydrologic Impact Assessment– Average annual runoff– NPS pollution
• An overview / screening model
• User friendly tool
• Does not require detailed data input
• Identifies need for more detailed modeling
• Provides "What-If" alternatives evaluation scenarios
Minimization– Reduce imperviousness
– Soil Compaction
Storage, Detention & Filtration Rain gardens Drainage swales Green roofs Porous Pavement
Conservation Forest/Woods
Infiltrable Soils
https://engineering.purdue.edu/mapserve/LTHIA7/lthianew/lidIntro.htm
L-THIA LID (Low Impact Development)
Major Components
1. Conservation (Watershed and Site Level)
2. Minimization (Watershed and Site Level)
3. Integrated Management Practices (Site Level)
Purdue University is an Equal Opportunity/Equal Access institution.
LTHIA-Web with Online Watershed Delineation
Region 5 States, visible on Google Maps ™.Flowshed is calculated from point and landuse and soil characteristics are loaded into model.
https://engineering.purdue.edu/~lthia/
Purdue University is an Equal Opportunity/Equal Access institution.
Landuse and Soil are automatically entered into spreadsheet
Web-based Tool for Flow and Load Duration Curve Development
Web-Based Flow Duration and Load Duration Curve Tool
https://engineering.purdue.edu/~ldc
Flood Conditions
100 cfs
FDC, LDC and Target Concentration (2002-2007) for USGS Gauge 04180000, Cedar Creek, IN
WQ Target (0.10 ppm)
FDC LDC
Target Concentration
Enter / Upload Flow and WQ Data for LDC
Click this button to Generate FDC only
You can enter USGS gauge number to retrieve flow data Select beginning and
Ending dates
You can select and click here to retrieve USGS flow data
Retrieve USGS Flow Data and Enter /Upload WQ Data for LDC
Summary These tools enable decision makers to formulate
watershed management plans to meet goals
Allows stakeholders to understand impacts of water quantity and quality resulting from land use change
For more information:For more information:
https://engineering.purdue.edu/~ldchttps://engineering.purdue.edu/~ldc