Name:total_column_waterAbbreviation:tcwUnit:kg m-2

Total column water

 

DefinitionVertical integral from the ground to the nominal top of the atmosphere expressing the total amount of water (vapour + cloud water + cloud ice), but no precipitation included.
ValidityDaily mean
Comment Computed from instantaneous values at 00, 06, 12 and 18Z
GRIB 2
Discipline= 0  
Parameter Category= 1  
Parameter Number= 51  
Type of first fixed surface= 1Type of second fixed surface= 8
Scale factor of first fixed surface= All 1'sScale factor of second fixed surface= All 1's
Scaled value of first fixed surface= All 1'sScaled value of second fixed surface= All 1's
GRIB 2 and C-code for: Perturbed forecast, Control forecast, Perturbed re-forecast and Control re-forecast