.. _climatologies:

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Climatologies
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Climatology objects provide the value of scalar parameters in the atmosphere. They are created using the
:class:`ISKClimatology` class and are used by radiative transfer engines to calculate
atmospheric parameters such as number density, pressure and temperature. However, climatology objects
can be built that support any scalar (atmospheric) parameter imaginable and can be used as stand-alone objects
in other software projects.

==============================================      =====================================================
Climatology                                         Description
==============================================      =====================================================
:ref:`clim_msis90`                                  Fast climatological background atmosphere using MSIS and CIRA.
:ref:`clim_no2pratmo`                               NO2 PRATMO climatological model.
:ref:`clim_o3labow`                                 The Labow O3 ozone climatology.
:ref:`clim_userdefined_profile`                     User defined height profiles
:ref:`clim_userdefined_profile_table`               User defined height profile for legacy applications
:ref:`clim_userdefined_profile_plane`               User defined height profiles that vary along a great circle /plane.
:ref:`clim_userdefined_profile_latlonheight`        User defined height profiles distributed across the surface of the Earth
:ref:`clim_ecmwf`                                   The ECMWF atmosphere. Needs external database files.
:ref:`clim_linearcombo`                             A linear combination of two other climatologies
:ref:`clim_osirisl2_aerosolrtmodel_v507`            The OSIRIS aerosol height profile generated in Version 5.07
:ref:`clim_osirisl2_aerosolmoderadius_v600`         The OSIRIS aerosol mode radius profile generated in Version 6.00 (unofficial)
:ref:`clim_osirisl2_o3rtmodel_v507`                 The OSIRIS O3 height profile generated in Version 5.07.
:ref:`clim_osirisl2_no2rtmodel_v507`                The OSIRIS NO2 height profile generated in Version 5.07.
:ref:`clim_constantvalue`                           Climatology which is a constant value everywhere.
:ref:`clim_onepressuretemp`                         Climatology which is a fixed pressure and temperature (useful for IR cross-sections)
==============================================      =====================================================

Scalar parameters are identified using standard :ref:`climatologyhandles`

..  toctree::
    :maxdepth: 1

    msis90
    no2pratmo
    o3labow
    userdefined_profile
    userdefined_plane
    userdefined_profile3d
    userdefined_profile_table
    ecmwf
    linear_combo
    osirisl2_aerosolrtmodel_v507
    osirisl2_aerosolmoderadius_v600
    osirisl2_o3rtmodel_v507
    osirisl2_no2rtmodel_v507
    constantvalue
    onepressuretemp
    climatology_handles