Water Balance Components

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Presentation transcript:

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 NAD83

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/wea01170.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.bsatroop257.org/Documents/Summer%20Camp/Topographic%20map%20of%20Bartle.jpg

Watersheds http://www.bsatroop257.org/Documents/Summer%20Camp/Topographic%20map%20of%20Bartle.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/StreamGauging.jpg

River Hydrograph http://cires.colorado.edu/lewis/epob4030/Figures/UseandProtectionofWaters/figures/ColoradoRiverHydrograph.gif

http://www.nws.noaa.gov/om/hod/SHManual/SHMan040_rating.htm

Recurrence Interval T = n+1 /m P = 1/T T: recurrence interval n: number of data m: rank (highest to lowest) P = 1/T http://serc.carleton.edu/quantskills/methods/quantlit/RInt.html

Well Hydrograph http://wy.water.usgs.gov/news/archives/090100b.htm

http://www. prescottcreeks http://www.prescottcreeks.org/programs/watson%20woods/Inv%20and%20Mon/monitoring%20well.htm http://www.water.az.gov/dwr/Content/Find_by_Program/Hydrology/WQARF/content/Reports/Well_Images/MWwithNamePlate.JPG

Textbook Errata http://members.cox.net/ground-water/errata.pdf