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Definition | Vertical 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. | |
Validityinstantaneous | Daily averaged | |
Comment | Available once a day at 00Z | Computed from instantaneous values at 00, 06, 12 and 18Z |
Parameter | GRIB 2|||||
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Discipline | = 0 | Meteorological products | |||
Parameter Category | = 1 | Moisture | |||
Parameter Number | = 51 | Total column water (Vertically integrated total water (vapour + cloud water/ice) |
Level | |||||||
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Type of first fixed surface | = 1 | Ground or water surface | |||||
Scale factor of first Type of second fixed surface | = 8all bits to 1 | Missing | |||||
Scaled value Scale factor of first fixed surface | = All 1'sScale factor all bits to 1 | Missing | |||||
Type of second fixed surface | = 8 | Nominal top of the atmosphere | |||||
Scale factor of second | All 1'sScaled value of firstfixed surface | = | All 1'sall bits to 1 | Missing | |||
Scaled value of second fixed surface | = | Allall bits to 1 | 's|||||
GRIB 2 and C-code for: Perturbed forecast, Control forecast, Perturbed re-forecast and Control re-forecast |
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Missing |