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Scientific Investigations Report 2008–5045

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5045

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Conversion Factors, Datums, and Acronyms

Conversion Factors

Multiply By To obtain
Length
inch (in.) 2.54 centimeter (cm)
inch (in.) 25.4 millimeter (mm)
inch per year (in/yr) 2.54 centimeter per year (cm/yr)
inch per year (in/yr) 25.4 millimeter per year (mm/yr)
foot (ft) 0.3048 meter (m)
mile (mi) 1.609 kilometer (km)
Area
acre 4,047 square meter (m2)
square mile (mi2) 2.590 square kilometer (km2)
Volume
cubic foot (ft3) 0.02832 cubic meter (m3)
acre-foot (acre-ft) 1,233 cubic meter (m3)
acre-foot (acre-ft) 0.001233 cubic hectometer (hm3)
Flow Rate
acre-foot per year (acre-ft/yr) 1,233 cubic meter per year (m3/yr)
cubic foot per second (ft3/s) 0.02832 cubic meter per second (m3/s)

Datums

Vertical coordinate information is referenced to the North American Vertical Datum of 1988 (NAVD 88).

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

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

Acronyms

CRBG Columbia River Basalt Group
DEM digital elevation model
DGER Washington Division of Geology and Earth Resources
GIS Geographic Information System
SOAC System Operations Advisory Committee
TWSA current available storage in the reservoirs, estimates of unregulated flow, and other sources that principally are return flows
USGS U.S. Geological Survey
WaDOE Washington State Department of Ecology
WRIA Washington State Water Resources Inventory Area
YN Yakama Nation
3D Three dimensional
SMB Saddle Mountains Basalt
WB Wanapum Basalt
GRB Grande Ronde Basalt

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