1 / 36

Data Sources for GIS in Water Resources

Data Sources for GIS in Water Resources. National Hydro Data Programs. National Elevation Dataset (NED). National Hydrography Dataset (NHD). NED-Hydrology . Watershed Boundary Dataset. Watersheds of the US . 2-digit water resource regions. 8-digit HUC watersheds.

sonel
Download Presentation

Data Sources for GIS in Water Resources

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. Data Sources for GIS in Water Resources

  2. National Hydro Data Programs National Elevation Dataset (NED) National Hydrography Dataset (NHD) NED-Hydrology Watershed Boundary Dataset

  3. Watersheds of the US 2-digit water resource regions 8-digit HUC watersheds

  4. Hydrologic Unit Code Watersheds ~ 2000 for US, about the size of counties

  5. Watershed Hierarchy Digit # 2 4 6 8 HUC 10 12 EDNA Available In Progress

  6. National Program by USGS and USDA (NRCS) Boundaries for 10- and 12- digit watersheds First cut is by automated delineation from NED Hand checked and edited Watershed Boundary Dataset 10-digit watersheds

  7. EPA River Reach File 1 (RF1)

  8. BASINS - Integrating GIS and Water Quality Modeling Data Cartographic Monitoring Loadings Tools Target Assessment Data Mining Reporting • Models • HSPF - NPSM • QUAL2E • TOXIROUTE • Post-Processors Target Assess DM Decisions Watershed Management . TMDL . Source Water Protection . Stormwater State and Local Data

  9. National Hydro Data Programs National Elevation Dataset (NED) National Hydrography Dataset (NHD) NED-Hydrology Watershed Boundary Dataset

  10. River networks for 8-digit HUC watersheds

  11. Lower West Fork, Trinity River Basin HUC = 12030102

  12. NHD River Reaches 412 River Reaches In Upper West Fork of Trinity Basin

  13. River Reach CodesUsed for river address locations ReachCode = 12030102000151 ReachCode = 12030102000005 Location 0.392 on Reach 12030102000005 Segment# HUC#

  14. National Hydro Data Programs National Elevation Dataset (NED) National Hydrography Dataset (NHD) NED-Hydrology Watershed Boundary Dataset

  15. Digital Elevation Model with 1 arc-second (30m) cells Seamless in 1° blocks for the United States 10 billion data Derived from USGS 1:24,000 quadrangle sheets National Elevation Dataset

  16. Digital Elevation Model (DEM) 720 720 Contours 740 720 700 680 740 720 700 680

  17. Austin West 30 Meter DEM

  18. 32 64 128 16 1 8 4 2 Eight Direction Pour Point Model Water flows in the direction of steepest descent

  19. 32 64 128 16 1 8 4 2 Flow Direction Grid

  20. Stream cell Cell to Cell Grid Network Through the Landscape

  21. Delineation ofStreams and Watersheds on a DEM

  22. National program by USGS and NWS 5000 cellthreshold on a 30m DEM (~ 8 km2 average drainage area) ~ 1 million catchments for US when completed Includes grid derived products e.g. topmodel index

  23. County Level Digital Soil Maps

  24. National Land Cover Dataset

  25. PRISM Mean Annual Precipitation

  26. National Water Information System Web access to USGS water resources data in real time

  27. USGS National Water Information System. • Real-time and Historic Data • Streamflow and stage • Groundwater levels • Water Quality • Site information • Tabular or Graphical Format

  28. USGS Water Watch Web access to USGS water resources data in real time

  29. GTOPO30 - 1 km Digital Elevation Model of the Earth

  30. Drainage in North America

  31. 1500 Major Drainage Basins

More Related