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Watershed Management Decision Watershed Management Decision Support Using Web-Based Support Using Web-Based Hydrological Tools and GISHydrological Tools and GIS
Bernard A. EngelBernard A. EngelJin-Yong ChoiJin-Yong ChoiLarry ThellerLarry Theller
Agricultural and Biological DepartmentAgricultural and Biological DepartmentPurdue UniversityPurdue University
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Processes for Hydrologic Impact Processes for Hydrologic Impact Analysis Using Web-GIS ToolsAnalysis Using Web-GIS Tools
Outlet Point Selection Using Web-GIS
Run Watershed Delineation
Watershed Delineation Result
Reflect Land Use Change Using Online Digitizing
Run L-THIA
Runoff and NPS Output/Impact Evaluation
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Front PageFront Page
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Select Outlet Point Select Outlet Point Main Menu
Layer ControlOn/Off
Map Display
Display ControlZoom in/outPan, Full extent
Auxiliary functions
Reference Map
WD Submit Button
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Watershed Delineation and Result Watershed Delineation and Result PagePage
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Results Display Results Display
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Print and Download PagePrint and Download Page
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L-THIA Input Data Preparation for Present L-THIA Input Data Preparation for Present Land Use and Hydrologic Soil GroupLand Use and Hydrologic Soil Group
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Buttons for Online ToolButtons for Online Tool
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Change Land Use in the Watershed Using Change Land Use in the Watershed Using Online Digitizing ToolOnline Digitizing Tool
Add Low Density Residential, Add Low Density Residential, Commercial, and High Density Commercial, and High Density
Residential AreasResidential Areas
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Results Page after the Land Use Results Page after the Land Use ChangeChange
Present Land Use DataPresent Land Use Data
Proposed Land Use DataProposed Land Use Data
Application Buttons forApplication Buttons forHydrological Model OperationHydrological Model Operation
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L-THIA Input Page After Changing L-THIA Input Page After Changing Land UseLand Use
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L-THIA Results - Runoff TablesL-THIA Results - Runoff Tables
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Runoff and Land Use to Evaluate the Runoff and Land Use to Evaluate the Land Use Change Impact on Land Use Change Impact on
HydrologyHydrology
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NPS Pollutant LoadingNPS Pollutant Loading