ecCodes definition

Name:Ocean mixed layer thickness defined by sigma theta 0.01 kg/m3Abbreviation:mlotst010Unit:mparamId:151225
Description:

The mixed layer depth is defined as the ocean depth at which sigma-theta has increased by 0.01 kg m-3 relative to the near-surface value at 10 m depth


S2S details

ValidityDaily averaged
Comment

Land points should be set as missing values.

Computation of daily average depends on the model (e.g. it can be a direct model output or computed one from instantaneous values at 0, 6, 12 and 18Z etc)


WMO GRIB2 definition

Parameter
Discipline10oceanographic products
Parameter category4subsurface properties
Parameter number14water depth


Level
Type of first fixed surface169Ocean level defined by water density (sigma-theta) difference from near-surface to level
Scale factor of first fixed surface2
Scaled value of first fixed surface1=> 1/102 = 0.01
Type of second fixed surfaceall bits to 1missing
Scale factor of second fixed surfaceall bits to 1missing
Scaled value of second fixed surfaceall bits to 1missing

approved by WMO in April 2019 for the next release November 2019