emc2.simulator.subcolumn.set_q_n¶
-
emc2.simulator.subcolumn.
set_q_n
(model, hyd_type, is_conv=True, qc_flag=True, inv_rel_var=1)[source]¶ This function distributes the mixing ratio and number concentration into the subcolumns. For \(q_c\), the horizontal distribution follows Equation 8 of Morrison and Gettelman (2008).
- Parameters
- model: :func:`emc2.core.Model`
The model to calculate the mixing ratio in each subcolumn for.
- hyd_type: str
The hydrometeor type.
- is_conv: bool
Set to True to calculate the mixing ratio assuming convective clouds.
- qc_flag: bool
Set to True to horizontally distribute the mixing ratio according to Morrison and Gettleman (2008)
- inv_rel_var: float
The inverse of the relative variance for the p.d.f. in Morrison and Gettleman (2008)
- Returns
- model:
emc2.core.Model()
The model with mixing ratio calculated in each subcolumn.
- model:
References
Morrison, H. and A. Gettelman, 2008: A New Two-Moment Bulk Stratiform Cloud Microphysics Scheme in the Community Atmosphere Model, Version 3 (CAM3). Part I: Description and Numerical Tests. J. Climate, 21, 3642–3659, https://doi.org/10.1175/2008JCLI2105.1