Scientific Investigations Report 2006-5041

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006-5041

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Conversion Factors, Datums, and Acronyms and Abbreviations

Conversion Factors

Multiply By To obtain
cubic foot per second (ft3/s) 0.02832 cubic meter per second
inch (in.) 2.54 centimeter
inch (in.) 25.4 millimeter
inch per day (in/d) 25.4 millimeter per day
inch per year (in/yr) 25.4 millimeter per year
foot (ft) 0.3048 meter
mile (mi) 1.609 kilometer
square mile (mi2) 2.590 square kilometer

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

°C = (°F-32)/1.8.

Datums

Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD29), referred to in this report as “sea level.”

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD83).

Altitude, as used in this report, refers to distance above or below sea level.

Acronyms and Abbreviations

Acronym and Abbreviation Meaning or definition
AET actual evapotranspiration
CSS composite scaled sensitivities
DSS dimensionless scaled sensitivities
ET evapotranspiration
HRU hydrologic response unit
MMS Modular Modeling System
MOPEX Model Parameter Estimation Experiment
PRMS Precipitation-Runoff Modeling System
USGS U.S. Geological Survey
VOII value of improved information

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