Conversion Factors and Datums


Inch/Pound to SI


Multiply	By	To obtain
Length
foot (ft)	0.3048	meter (m)
Flow Rate
cubic foot per second (ft3/s)	0.02832	cubic meter per second (m3/s)

SI to Inch/Pound


Multiply	By	To obtain
Length
meter (m)	3.281	foot (ft)
kilometer (km)	0.6214	mile (mi)
Area
square kilometer (km2)	247.1	acre
square kilometer (km2)	0.3861	square mile (mi2)
hectare (ha)	0.003861	square mile (mi2)
Volume
cubic meter (m3)	35.31	cubic foot (ft3)
cubic meter (m3)	1.308	cubic yard (yd3)
Flow Rate
meter per second (m/s)	3.281	foot per second (ft/s)
cubic meter per second (m3/s)	35.31	cubic foot per second (ft3/s)
cubic meter per day (m3/d)	35.31	cubic foot per day (ft3/d)
Mass
kilogram (kg)	2.205	pound avoirdupois (lb)

Concentrations of chemical constituents in water are given either in milligrams per liter (mg/L) or micrograms per liter (µg/L).


Both English and metric units are used in this report for the convenience of all readers. The results are presented in metric units only, with the exception of lake elevation which, because of the familiarity of English units to scientists and managers who work in the Upper Klamath Basin, is presented in feet. The regression models use metric units.


Datums


Vertical coordinate information is referenced to the Bureau of Reclamation datum, which is 1.78 feet above National Geodetic Vertical Datum of 1929 (NGVD 29).


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





First posted March 29, 2012