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Scientific Investigations Report 2007–5117

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5117

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Conversion Factors, Datums, and Abbreviations and Acronyms

Conversion Factors

Multiply By To obtain
foot (ft) 0.3048 meter (m)
cubic hectometer (hm3) 810.7 acre-foot (acre-ft)
kilometer (km) 0.6214 mile (mi)
square kilometer (km2) 247.1 acre
liter (L) 0.2642 gallon (gal)
meter (m) 3.281 foot (ft)

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows: °F=(1.8×°C)+32.

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

Datums

Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29).

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

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

Abbreviations and Acronyms

Abbreviations Meaning
AFA Aphanizomenon flos-aquae
AICc Akaike Information Criterion
LC50 median lethal concentration
USEPA U.S. Environmental Protection Agency
USFWS U.S. Fish and Wildlife Service
USGS U.S. Geological Survey

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