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- se_ftype=0 (default): the physics tendency is included ("dribbled in") as a constant source term in each remap timestep
- se_ftype=1: the impact of physics is applied entirely before dynamics is run (hard adjustment). In other words, dynamics sees the state after physics. This prevents conservation errors but can (if dtime is too large) pushes the model state too far away from where dynamics wants it, resulting in a shock and resulting gravity wave propagation every time dynamics is called.
- se_ftype=2: A blend of ftype=0 and ftype=1... The model state is updated to include the effect of physics on temperature and winds before dynamics is called, but the effect of other quantities is dribbled into dynamics every remap substep.
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