Which dynamical core fields are used to lock Jnr's physical atmosphere to that of Snr?

We currently use

  • UM fields
    • U and V
    • θvd
    • π and πs
  • JULES
    • Soil temperature
    • Soil moisture
    • Unfrozen and Frozen soil moisture fraction (fraction of saturation, I think)

We don't use (all UM fields)

  • ρd (breaks mass conservation in Jnr)
  • Dη/Dt (seems to degrade locking)
  • W (although yet to notice if it degrades or improves locking)

What should we do with the water fields?

  • Stash 391: VAPOUR MIXING RATIO (mv) AFTER TS
  • Stash 392: CLD LIQ MIXING RATIO (mcl) AFTER TS
  • Stash 393: CLD ICE MIXING RATIO (mcf) AFTER TS
  • Stash 394: RAIN MIXING RATIO (mr) AFTER TS