ESCOMP / PUMAS

Parameterization for Unified Microphysics Across Scales
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number concentration update #41

Closed cacraigucar closed 2 years ago

cacraigucar commented 2 years ago

This Pull request addresses issue #38

  1. Adds number tendencies
  2. Cleans up numerics for the vapor deposition onto snow limiters (this was probably a bug in the previous version)
  3. Changes Immersion Freezing from the CNT version in CAM6 BACK to the old Bigg formulation in CAM5

Item 3 is necessary because immersion freezing from CNT is not bounded and does not work well at long timesteps (>60s or les). So it was having a massive influence on ice number. Instead we will go back to the Bigg formulation from CAM5, at least for now.

The code has been tested in cam_dev, 32L, SE dynamical core.

It is designed to be run with the following namelist options (not set yet, need to be used manually)