CEE 795 Water Resources Modeling and GIS Lecture

CEE 795 Water Resources Modeling and GIS Lecture #3: Data Sources and Projections (some material from Dr. David Maidment, University of Texas) January 30, 2006 Learning Objectives: • List the essential data needed for water resource modeling • Identify sources of water resources data in the U. S. and Clark County Handouts: Assignments: Exercise #2

Geospatial One-Stop http: //www. geodata. gov/gos

Google Earth http: //earth. google. com/

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

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

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

Watershed Boundary Dataset • 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 10 -digit watersheds

EPA River Reach File 1 (RF 1)

BASINS - Integrating GIS and Water Quality Modeling Data State and Local Data Cartographic Monitoring Tools Target Assess DM Models HSPF - NPSM QUAL 2 E Assessment TOXIROUTE Loadings Decisions Data Mining Reporting Watershed Management. TMDL Post-Processors . Source Water Protection. Stormwater

River networks for 8 -digit HUC watersheds http: //nhd. usgs. gov/

Lower West Fork, Trinity River Basin HUC = 12030102

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

River Reach Codes Used for river address locations Reach. Code = 12030102000151 Reach. Code = 12030102000005 HUC# Segment# Location 0. 392 on Reach 12030102000005

National Elevation Dataset http: //gisdata. usgs. net/ned/ • Digital Elevation Model with 1 arcsecond (30 m) cells • Seamless in 1° blocks for the United States • 10 billion data • Derived from USGS 1: 24, 000 quadrangle sheets Get the data: http: //seamless. usgs. gov/

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

Austin West 30 Meter DEM

http: //www. ngdc. noaa. gov/mgg/shorelines. html

1: 250, 000 Scale Soil Information http: //www. ncgc. nrcs. usda. gov/products/datasets/statsgo/

1: 24, 000 scale soil information County Level Digital Soil Maps http: //www. ncgc. nrcs. usda. gov/products/datasets/ssurgo/

National Land Cover Dataset http: //landcover. usgs. gov/nationallandcover. html Get the data: http: //seamless. usgs. gov/

Hydrologic Landscape Regions USGS Characterization of nature of soil and groundwater systems

http: //www. ncdc. noaa. gov/oa/ncdc. html

PRISM Mean Annual Precipitation http: //www. wcc. nrcs. usda. gov/climate/prism. html

http: //www. daymet. org/

National Water Information System Web access to USGS water resources data in real time http: //waterdata. usgs. gov/usa/nwis/

USGS Water Watch Web access to USGS water resources data in real time http: //waterdata. usgs. gov/nwis/rt

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

http: //srtm. usgs. gov/

http: //www. geographynetwork. com/

GTOPO 30 - 1 km Digital Elevation Model of the Earth http: //edcdaac. usgs. gov/gtopo 30. html

Drainage in North America Hydro 1 K is derived from GTOPO 30 using raster GIS analysis http: //edcdaac. usgs. gov/gtopo 30/hydro/index. html

NASA Satellite Data http: //edcimswww. cr. usgs. gov/pub/imswelcome/

Global Energy and Water Experiment http: //www. gewex. org/

http: //maps. utah. gov/

http: //www. wrcc. dri. edu/

http: //www. wcc. nrcs. usda. gov/snotel/

Clark County Data • Clark County GIS Management Office (GISMO)

Clark County Data • Flood Threat Recognition System