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Evaluate whether to test NoahMP with split physics one-way coupled #2

Open rsdunlapiv opened 2 years ago

uturuncoglu commented 2 years ago

I tested this with the side-by-side run to see if it helps with reducing bias in the updated UFS model. It seems that the current coupling interface does not allow to provide fields to component between the phases. So, we need to follow same approach that is used for the chemistry component and add specialized import and export subroutines just for land component like it is done in here

https://github.com/NOAA-EMC/fv3atm/blob/dab7d71b2bf1ab2c8dc66353e617e8552efceec3/atmos_model.F90#L1239

This requires additional development in the split physics side. @rsdunlapiv do you think that we need to spend time for it at this point.

danrosen25 commented 2 years ago

Development cost is high but we can create a coupled system with a LSM physics lag. Put on hold.

danrosen25 commented 2 years ago

Met with Mariana and Justin: Just has a workaround for splitting the physics. It stores state before the lsm runs then returns to the physics after the lsm with this state.