Scientific Investigations Report 2006–5116

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5116

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Conversion Factors, Datums, and Abbreviations

Inch/Pound to SI

Multiply By To obtain length
acre 4,047 square meter
acre-foot (acre-ft) 1,233 cubic meter
acre-foot (acre-ft) 0.001233 cubic hectometer
acre-foot per year (acre-ft/yr) 1,233 cubic meter per year
cubic foot (ft3) 0.02832 cubic meter
cubic foot per second (ft3/s) 0.02832 cubic meter per second
foot (ft) 0.3048 meter
gallon (gal) 3.785 liter
gallon (gal) 0.003785 cubic meter
gallon (gal) 3.785 cubic decimeter
gallon per minute (gal/min) 0.06309 liter per second
gallon per day (gal/d) 0.003785 cubic meter per day
inch (in.) 2.54 centimeter
inch (in.) 25.4 millimeter
mile (mi) 1.609 kilometer
million gallons (Mgal) 3,785 cubic meter
million gallons per day (Mgal/d) 0.04381 cubic meter per second
section (640 acres or 1 square mile) 259.0 square hectometer
square foot (ft2) 0.09290 square meter
square inch (in2) 6.452 square centimeter
square mile (mi2) 2.590 square kilometer

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:

°F=(1.8×°C)+32

Temperature in degrees Fahrenheit (°F) may be converted to degrees Celsius (°C) as follows:

°C=(°F-32)/1.8

Altitude, as used in this report, refers to distance above the vertical datum.

Datums

Vertical coordinate information is referenced to the North American Vertical Datum of 1929 (NAVD 29).

Horizontal coordinate information is referenced to the North American Datum of 1927 (NAD 27).

Abbreviations

Abbreviation Definition
CRBG Columbia River Basalt Group
DEM digital elevation model
DGER Division of Geology and Earth Resources
DNR Washington State Department of Natural Resources
GIS Geographic Informaton System
GPS global positioning system
NWIS National Water Information System
SOAC System Operations Advisory Committee
TWSA current available storage in the reservoirs, estimates of unregulated flow, and other sources that are principally return flow
USGS U.S. Geological Survey
WaDOE Washington State Department of Ecology
WRIA Washington State Water Resources Inventory Area
YN Yakama Nation

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For more information about USGS activities in Washington, visit the USGS Washington Water Science Center home page.


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