PhysicalCloud

class konrad.cloud.PhysicalCloud(*args, **kwargs)[source]

Define a cloud based on physical properties.

The physical properties are cloud ice and liquid mass (per model level) and particle size. To be used with cloud_optical_properties=’liquid_and_ice_clouds’ in climt/RRTMG.

__init__(numlevels, cloud_fraction, mass_water, mass_ice, ice_particle_size, droplet_radius)[source]

Initialize a cloud component.

Parameters

  • numlevels (int) – Number of atmospheric levels.

  • cloud_fraction (float / ndarray / DataArray) – cloud area fraction

  • mass_ice (float / ndarray / DataArray) – mass content of cloud ice [kg m-2]

  • mass_water (float / ndarray / DataArray) – mass content of cloud liquid water [kg m-2]

  • ice_particle_size (float / ndarray / DataArray) – cloud ice particle size [micrometers]

  • droplet_radius (float / ndarray / DataArray) – cloud water droplet radius [micrometers]

Methods

__init__(numlevels, cloud_fraction, ...)

Initialize a cloud component.

create_variable(name[, data, dims])

Create a variable in the model component.

from_atmosphere(atmosphere, **kwargs)

Initialize a cloud component matching the given atmosphere.

from_netcdf(ncfile[, timestep])

Load a model component from a netCDF file.

get(variable[, default, keepdims])

Get values of a given variable.

get_p_data_array(values[, units])

Return a DataArray of values.

get_waveband_data_array(values[, units, sw])

Return a DataArray of values.

hash_attributes()

Create a hash from all hashable component attributes.

overcast()

Set cloud fraction in cloud layers to 1 (full overcast).

set(variable, value)

Set the values of a variable.

to_dataset()

Convert model component into an xarray.Dataset.

update_cloud_profile(*args, **kwargs)

Keep the cloud fixed with pressure.

Attributes

attrs

Dictionary containing all attributes.

data_vars

Dictionary containing all data variables and their dimensions.

netcdf_subgroups

Define subgroups used when storing to netCDF file.

num_longwave_bands

number of longwave bands used in the radiation scheme

num_shortwave_bands

number of shortwave bands used in the radiation scheme