Units
OpenWQ’s internal units generally follow the IS convention, except for mass. Instead of length (\(L\)) we specify volume (\(L^3\)) because it makes more sense when dealing with dissolved solutes in water.
Mass(\(M\)): gram (not IS unit to avoid very small numbers generally associated with concentrations in the environment)Volume(\(L^3\)): cubic meter (using basic IS unit for length (meter))Time(\(T\)): second (IS unit)
Different units may be used in the input and output files. They just need to specified in the respective json keys or values. Below is a list of all the units permitted in OpenWQ together with the respective flags.
Mass (\(L\))
gigatonne (flag:
GT)negatonne (flag:
MT)tonne (flag:
T)tonne US (flag:
TON_US)tonne UK (flag:
TON_UK)kilogram (flag:
KG)gram (flag:
G)miligram (flag:
MG)micro gram (flag:
UG)nano gram (flag:
NG)pico gram (flag:
PG)pound (flag:
LB)ounce (flag:
OZ)
Volume (\(L^3\))
cubic kilometer (flag:
KM3)cubic meter (flag:
M3)cubic centimeter (flag:
CM3)cubic millimeter (flag:
MM3)liter (flag:
L)milliliter (flag:
ML)gallon (US) (flag:
GAL_US)quart (US) (flag:
QT_US)cubic mile (flag:
MI3)gigatonne (flag:
GT)cubic yard (flag:
YD3)cubic foot (flag:
FT3)cubic inch (flag:
IN3)cubic decimeter (flag:
DM3)exaliter (flag:
EL)petaliter (flag:
PL)teraliter (flag:
TL)gigaliter (flag:
GL)megaliter (flag:
MEGL)kiloliter (flag:
KL)hectoliter (flag:
HL)dekaliter (flag:
AL)deciliter (flag:
DL)centiliter (flag:
CL)microliter (flag:
UL)nanoliter (flag:
NL)picoliter (flag:
PL)barrel (US) (flag:
BBL_US)barrel (UK) (flag:
BBL)gallon (UK) (flag:
GAL_UK)quart (UK) (flag:
QT_UK)pint (UK) (flag:
PT_UK)fluid ounce (US) (flag:
FL_OZ_US)fluid ounce (UK) (flag:
FL_OZ_UK)acre-foot [ac*ft] (flag:
AC_FT)acre-foot (US survey) (flag:
AC_FT_US)acre-inch [ac*in] (flag:
AC_IN)
Time (\(T\))
second (flag:
SEC)minute (flag:
MIN)hour (flag:
HOUR)day (flag:
DAY)week (flag:
WEEK)month (flag:
MONTH)year (flag:
YEAR)