Conversion Factors, Datums, and Abbreviations and Acronyms
Conversion Factors
Inch/Pound to SI
| Multiply |
By |
To obtain |
| acre |
0.4047 |
hectare (ha) |
| foot (ft) |
0.3048 |
meter (m) |
| foot per second (ft/s) |
0.3048 |
meter per second (m/s) |
| mile (mi) |
1.609 |
kilometer (km) |
| cubic foot per second (ft3/s) |
0.02832 |
cubic meter per second (m3/s) |
SI to Inch/Pound
| Multiply |
By |
To obtain |
| kilogram (kg) |
2.205 |
pound avoirdupois (lb) |
| meter (m) |
3.281 |
foot (ft) |
| metric ton |
1.102 |
ton (ton) |
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 given either in milligrams per liter (mg/L), which is approximately equivalent to parts per million (ppm), or micrograms per liter (µg/L), which is approximately equivalent to parts per billion (ppb).
Datums
Elevation refers to distance above the vertical datum. A local vertical datum, Upper Klamath Lake Vertical Datum (UKLVD) is used, which was established by the Bureau of Reclamation. For the purpose of this report, the conversion is UKLVD – 1.78 ft = National Geodetic Vertical Datum of 1929 (NGVD 29).
Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).
Abbreviations and Acronyms
|
| BOD |
biochemical oxygen demand |
| BOD5 |
5-day biochemical oxygen demand |
| EPA |
U.S. Environmental Protection Agency |
| GCM |
Global Circulation Model |
| ISS |
inorganic suspended sediment |
| LDOM |
labile dissolved organic matter |
| LPOM |
labile particulate organic matter |
| NH3 |
un-ionized ammonia |
| NH4 |
shorthand for ammonia plus ammonium in this report |
| NH4+ |
ammonium |
| NO3 |
shorthand for nitrate in this report |
| ODEQ |
Oregon Department of Environmental Quality |
| PO4 |
shorthand for orthophosphorus in this report |
| RDOM |
refractory dissolved organic matter |
| RPOM |
refractory particulate organic matter |
| T |
water temperature |
| TIC |
total inorganic carbon |
| TMDL |
Total Maximum Daily Load |
| TN |
total nitrogen |
| TP |
total phosphorus |
| TSS |
total suspended solids |
| USGS |
U.S. Geological Survey |
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First posted July 24, 2013
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