1 / 37

ArcView GIS Interface to WinTR-20 Hydrologic Model

ArcView GIS Interface to WinTR-20 Hydrologic Model. NRCS Geo-Hydro web sites. Non-NRCS: Download Version 1.0 at web site: http://www.wsi.nrcs.usda.gov/products/W2Q/H&H/Tools_Models/GeoHyd.html NRCS: Contact IT staff to install software Download sample GIS data at web site:

thea
Download Presentation

ArcView GIS Interface to WinTR-20 Hydrologic Model

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ArcView GIS Interface to WinTR-20 Hydrologic Model

  2. NRCS Geo-Hydro web sites • Non-NRCS: Download Version 1.0 at web site: • http://www.wsi.nrcs.usda.gov/products/W2Q/H&H/Tools_Models/GeoHyd.html • NRCS: Contact IT staff to install software • Download sample GIS data at web site: http://www.wsi.nrcs.usda.gov/products/W2Q/H&H/Tools_Models/GeoHyd.html March 2009

  3. NRCS Geo-Hydro web site • Download 3-page Fact Sheet • Download software and data bases • Download sample GIS data for three locations March 2009

  4. General Steps in Application • Prepare data to a common projection and cell size (98.425 feet), prepare hydrologic soil group layer. • Run NRCS Geo-Hydro interface to build input file and get a first WinTR-20 run. • Import data file to WinTR-20 Controller/Editor and make refinements, calibrate, analyze alternatives, etc. March 2009

  5. Steps in running NRCS Geo-Hydro • Open NRCS Geo-Hydro and add GIS data. • Locate the design point. • Delineate the watershed. • Subdivide the watershed. • Obtain rainfall frequency data. • Determine Tc parameters. March 2009

  6. Steps in running NRCS Geo-Hydro • Determine channel geometry coefficients. • Compute drainage area, CN, and Tc. • Determine channel reach length and rating table. • Assemble network of sub-areas and reaches. • Create WinTR-20 input data file and run WinTR-20. March 2009

  7. Open NRCS_Geo-Hydro.apr March 2009

  8. Add DEM, Land Use, and Soil HSG Themes March 2009

  9. Add Optional Themes March 2009

  10. Locate watershed and cut rectangle March 2009

  11. Pre-processing Menu March 2009

  12. Process DEM, Land Use, and Soil March 2009

  13. W, S, O, and X buttons March 2009

  14. Zoom and click on watershed outlet March 2009

  15. Processing Menu March 2009

  16. Select Streams March 2009

  17. Select Additional Outlets March 2009

  18. Delineate Sub-areas March 2009

  19. Load Storm Data March 2009

  20. Select Tc Method March 2009

  21. Enter Channel Geometry Coefficients March 2009

  22. Calculate Attributes March 2009

  23. Sub-area land use and hydrologic soil group distribution March 2009

  24. Watershed Schematic March 2009

  25. Define cross section locations March 2009

  26. Cross Section Editor March 2009

  27. Cross Section Plot March 2009

  28. WinTR-20 Menu March 2009

  29. WinTR-20 Control Panel March 2009

  30. Execute WinTR-20 March 2009

  31. Sub-area and Reach Numbers March 2009

  32. Save Key Themes before closing • Addastransects.shp • Subsheds.shp • Addasstreams.shp • Close NRCS_Geo-Hydro without saving project March 2009

  33. Import Input to WinTR-20 Controller/Editor • Insert reservoirs • Change dimensionless unit hydrograph • Change rainfall depth and/or distribution • Import cross section rating tables from HEC-RAS • Analyze alternatives • Plot hydrographs • Other misc. options March 2009

  34. Limitations • Flat terrain • Karst topography • Glacial potholes and lakes • Alluvial fans • Man-made or natural levees • Dendritic drainage pattern forced March 2009

  35. Future Directions • Developed in Arc GIS 9.1 • Develop NRCS Hydro: a combination of WinTR-20, WinTR-55, and EFH-2 with GIS interface. March 2009

  36. NRCS Geo-Hydro web sites • Non-NRCS: Download Version 1.0 at web site: http://www.wsi.nrcs.usda.gov/products/W2Q/H&H/Tools_Models/GeoHyd.html • NRCS: Contact IT staff to install software • Download sample GIS data at web site: http://www.wsi.nrcs.usda.gov/products/W2Q/H&H/Tools_Models/GeoHyd.html March 2009

  37. March 2009

More Related