emc2.simulator.lidar_moments.calc_LDR

emc2.simulator.lidar_moments.calc_LDR(instrument, model, ext_OD, OD_from_sfc=True, LDR_per_hyd=None, is_conv=True)[source]

Calculates the lidar extinction mask and linear depolarization ratio for the given model and lidar.

Parameters
instrument: Instrument

The instrument to simulate. The instrument must be a lidar.

model: Model

The model to generate the parameters for.

ext_OD: float

The optical depth threshold for determining if the signal is extinct.

OD_from_sfc: bool

If True, optical depth will be calculated from the surface. If False, optical depth will be calculated from the top of the atmosphere.

LDR_per_hyd: dict or None

If a dict, the amount of LDR per hydrometeor class must be specified in a dictionary whose keywords are the model’s hydrometeor classes. If None, the default settings from the model will be used.

is_conv: bool

If true, calculate LDR for convective clouds. If False, LDR will be calculated for stratiform clouds.

Returns
model: Model

The model with the added simulated lidar parameters.