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Soil moisture top 100 cm

Name:soil_moisture top 100 cmAbbreviation:sm100Unit:kg m-3
DefinitionThe volumetric soil moisture on the top 100cm of the soil layer.
Validityinstantaneous
CommentTo interprete soil moisture and to compare different models the Soil Wetness Index (SWI) is used:

SWI = (soil_moisture - wilting_point) / (field_capacity - wilting_point).

Field capacity corresponds to the maximum value that the model can sustain without precipitation for more than a few hours. The vegetated fraction of the soil evaporates at the maximum rate for soil moisture larger than field capacity and stops evaporating below the permanent wilting point, with a continuous variation between the two extremes.
All Partners are asked to provide the wilting point and the field capacity for each grid point.
GRIB 2
Discipline= 2  
Parameter Category= 0  
Parameter Number= 22  
Type of first fixed surface= 106Type of second fixed surface= 106
Scale factor of first fixed surface= 0Scale factor of second fixed surface= 1
Scaled value of first fixed surface= 0Scaled value of second fixed surface= 10
GRIB 2 and C-code for: Perturbed forecast, Control forecast, Perturbed re-forecast and Control re-forecast
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