exo_k.adatabase

@author: jeremy leconte

Module containing a class to handle a database of CIA tables to compute opacities with it.

Module Contents

class exo_k.adatabase.Adatabase(*str_filters, filenames=None, remove_zeros=False, **kwargs)

Bases: exo_k.util.spectral_object.Spectral_object

Class to group Atable objects and combine them in radiative transfer

Initializes aerosol tables and supporting data from a list of filenames.

Parameters:

filenames (list) – List of names (not full path) of the input cia files. The files must be in the global search path.

A local search path can be specified with ‘search_path=’

See the options of Atable __init__ method.

atables

r_eff_unit = None

add_atables(*atables)

Adds new Atable objects to a Adatabase.

Parameters:

atables (Atable) – As many Atables as you want.

property names

Gives the names of the aerosols in the database

copy()

Creates a new instance of CIAdatabase object and (deep) copies data into it

sample(wngrid, remove_zeros=True, use_grid_filter=True, sample_all_vars=True)

Samples all the Atables in the database on the same wavenumber grid to be able to use them in radiative transfer modules.

Important

For this method, the default options are remove_zeros=True and use_grid_filter=True. This ensures that you do not count several contributinns twice when you use two different aerosol tables to represent the same aerosol type over two different spectral window (typically VI and IR)

Parameters:

wngrid (array, np.ndarray) – new wavenumber grid (cm-1)

See also

See exo_k.atable.Atable.sample() for further details on options.

convert_to_mks()

Converts units of all Cia_tables to MKS.

absorption_coefficient(aer_reffs_densities, wngrid_limit=None, log_interp=None)

Computes the opacity for the whole mix specified (assumes data in MKS).

Warning

The unit and physical meaning of the result may change depending on the quantity provided in aer_reffs_densities. See exo_k.atable.Atable.absorption_coefficient() for further details.

Parameters:

• aer_reffs_densities (dict) – A dictionary with aerosol names as keys and lists containing 2 floats (or arrays) as values. The values are the particle effective radii and number densities (or ratio of aerosol to gas number density).

• wngrid_limit (array, np.ndarray, optional) – Smaller and bigger wavenumbers inside which to perform the calculation.

Returns:

The opacity profile for the aerosols.

Return type:

array

optical_properties(aer_reffs_densities, wngrid_limit=None, log_interp=None, compute_all_opt_prop=True)

Computes the optical properties for the mix of aerosols (assumes data in MKS).

Warning

The unit and physical meaning of the result may change depending on the quantity provided in aer_reffs_densities. See exo_k.atable.Atable.absorption_coefficient() for further details.

Parameters:

• aer_reffs_densities (dict) – A dictionary with aerosol names as keys and lists containing 2 floats (or arrays) as values. The values are the particle effective radii and number densities (or ratio of aerosol to gas number density).

• wngrid_limit (array, np.ndarray, optional) – Smaller and bigger wavenumbers inside which to perform the calculation.

Returns:

The optical properties profile for the aerosols (in m^2).

Return type:

array