USGS DS 488: Data Used in Analyses of Trends, and Nutrient and Suspended-Sediment Loads for Streams in the Southeastern United States, 1973

U.S. Geological Survey Data Series 488

Data Used in Analyses of Trends, and Nutrient and Suspended-Sediment Loads for Streams in the Southeastern United States, 1973–2005

Conversion Factors

SI to Inch/Pound

Inch/Pound to SI

Multiply	By	To obtain
Flow
cubic foot per second (ft³/s)	0.02832	cubic meter per second (m³/s)
Mass
ton per square mile (mi²)	0.00035	kilogram per square meter (kg/m²)

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).

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

°F=(1.8×°C)+32

Specific conductance is given in microsiemens per centimeter at 25 degrees Celsius (µS/cm at 25 °C).

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

AMLE		Adjusted maximum likelihood estimator
HR		Hydrologic Region (a major watershed)
LOESS		Locally weighted scatterplot smoothing
LRL		Laboratory reporting level
MDL		Method detection level
MRL		Minimum reporting level
MVUE		Minimum variance unbiased estimator
NASQAN		National Stream Quality Accounting Network
NAWQA		National Water Quality Assessment Program
NHD		National Hydrography Dataset
NTU		Nephelometric turbidity unit
NWIS		National Water Information System (database)
NWQL		National Water-Quality Laboratory
RC		Re-censored (pertains to data)
STORET		Storage and Retrieval database
USEPA		U.S. Environmental Protection Agency
USGS		U.S. Geological Survey