Scientific Investigations Report 2008–5071
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5071
Conceptual Model of Hydrologic and Thermal Conditions
| Multiply | By | To obtain |
|---|---|---|
| inch (in.) | 25.4 | millimeter (mm) |
| foot (ft) | 0.3048 | meter (m) |
| mile (mi) | 1.609 | kilometer (km) |
| acre | 4,047 | square meter (m2) |
| acre | 0.4047 | hectare (ha) |
| section (640 acres or 1 square mile) | 259.0 | square hectometer (hm2) |
| square mile (mi2) | 259.0 | hectare (ha) |
| square mile (mi2) | 2.590 | square kilometer (km2) |
| cubic foot per second (ft3/s) | 0.02832 | cubic meter per second (m3/s) |
| gallon per minute (gal/min) | 0.06309 | liter per second (L/s) |
| foot per day (ft/d) | 0.3048 | meter per day (m/d) |
| foot squared per day (ft2/d) | 0.09290 | meter squared per day (m2/d) |
Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:
°F=(1.8×°C)+32.
*Transmissivity: The standard unit for transmissivity is cubic foot per day per square foot times foot of aquifer thickness [(ft3/d)/ft2]ft. In this report, the mathematically reduced form, foot squared per day (ft2/d), is used for convenience.
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).
Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29), unless otherwise noted.
Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).
Altitude, as used in this report, refers to distance above the vertical datum.
U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/sir/2008/5071
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Page Last Modified: Thursday, 10-Jan-2013 18:46:34 EST
