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.
ValidityDaily averaged
Comment

Computed from instantaneous values at 00, 06, 12 and 18Z - Sea points should be set as missing values

To interpret 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.

Parameter
Discipline= 2 Land surface products 
Parameter Category= 0 Vegetation/biomass
Parameter Number= 22 Soil Moisture
Level
Type of first fixed surface= 106Depth below land surface m
Scale factor of first fixed surface= 0 
Scaled value of first fixed surface= 00
Type of second fixed surface= 106
Depth below land surface m
Scale factor of second fixed surface= 1
 
Scaled value of second fixed surface= 10
1 metre

1 Comment

  1. Use paramId=228037