In this dataset only the following variables have an output frequency of 15 minutes:
Precipitation: grid-scale only, rain (kg/m^2) acc_st 102 201 SURF
Precipitation: grid-scale only, snow (kg/m^2) acc_st 079 002 SURF
Precipitation: grid-scale only, graupel (kg/m^2) acc_st 132 201 SURF
Precipitation rate: grid-scale only, rain (kg/s/m^2) inst 100 201 SURF
Precipitation rate: grid-scale only, snow (kg/s/m^2) inst 100 201 SURF
Precipitation rate: grid-scale only, graupel (kg/s/m^2) inst 100 201 SURF
Total column water vapour (or precipitable water) (kg/m^2) inst 054 002 SURF
Total column cloud water (or cloud water) (kg/m^2) inst 076 002 SURF
Total column cloud ice (or cloud ice) (kg/m^2) inst 058 002 SURF
For the other variables the LMK output frequency is 1h. Linear interpolation has been applied to generate 15-minute output in these cases.
According to the TIGGE+ list these variables are missing:
Precipitation: grid-scale only, hail (kg/m^2) acc_st 218 201 SURF
Precipitation rate: grid-scale only, hail (kg/s/m^2) inst 221 201 SURF
Precipitation: convective, snow (kg/m^2) acc_st 078 002 SURF
Precipitation: convective, graupel (kg/m^2) acc_st 217 201 SURF
Precipitation: convective, hail (kg/m^2) acc_st 219 201 SURF
Cloud top height (m) inst 087 201 SURF
Convective cloud top height (m) inst 069 201 SURF
Convective cloud bottom height (m) inst 068 201 SURF
Sunshine duration (s) acc_st 020 201 SURF
In most cases the missing variables are no longer part of the model physics, because there is no parametrization of convection.