Water Balance Components http www srs fs usda
Water Balance Components
http: //www. srs. fs. usda. gov/gallery/images/5_rain_gauge. jpg
DBHydro • State Plane Coordinates • High Accuracy Reference Network (HARN) • Refinement of NAD 83
DBHydro Rainfall Stations • Approximately 600 stations
Spatial Distribution of Average Rainfall http: //sflwww. er. usgs. gov/sfrsf/rooms/hydrology/compete/obspatialmapx. jpg
Voronoi/Thiessen Polygons
Evaporation Pan www. photolib. noaa. gov/ historic/nws/wea 01170. htm
Pan Evaporation • Pan Coefficients: 0. 58 – 0. 78 (get hotter than lake) • Transpiration • Potential Evapotranspiration (water may not be in soil) • Thornwaite Equation
Watersheds http: //www. bsatroop 257. org/Documents/Summer%20 Camp/Topographic%20 map%20 of%20 Bartle. jpg
Watersheds http: //www. bsatroop 257. org/Documents/Summer%20 Camp/Topographic%20 map%20 of%20 Bartle. jpg
Stage
Stage Recorder http: //gallatin. humboldt. edu/~brad/nws/assets/drum-recorder. jpg
Stream Gauging • Measure velocity at 2/10 and 8/10 depth • Q = v*A • Rating curve: – Q vs. Stage http: //www. co. jefferson. wa. us/naturalresources/Images/Stream. Gauging. jpg
River Hydrograph http: //cires. colorado. edu/lewis/epob 4030/Figures/Useand. Protectionof. Waters/figures/Colorado. River. Hydrograph. gif
http: //www. nws. noaa. gov/om/hod/SHManual/SHMan 040_rating. htm
Recurrence Interval • T = n+1 /m – T: recurrence interval – n: number of data – m: rank (highest to lowest) • P = 1/T • http: //serc. carleton. edu/quantskills/method s/quantlit/RInt. html
Well Hydrograph http: //wy. water. usgs. gov/news/archives/090100 b. htm
http: //www. prescottcreeks. org/programs/watson%20 woods/Inv %20 and%20 Mon/monitoring%20 well. htm http: //www. water. az. gov/dwr/Content/Find_by_Program/Hydrolo gy/WQARF/content/Reports/Well_Images/MWwith. Name. Plate. J PG
Textbook Errata • http: //members. cox. net/groundwater/errata. pdf
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