ARTS built-in documentation server

Workspace Variable scat_meta_single

Structure for the scattering meta data.

This variable holds the scattering meta data for a single scattering
element (see AUG for definition). Scattering meta data comprises
the microphysical description of the scattering element as necessary
to relate single scattering properties with mass density or flux
fields. That is, e.g., in order to handle the scattering element in
particle size (and shape) distribution calculations.

For a definition of the structure members see below.

Members of Numeric type can be flagged as unknown by setting them to
NAN. This will cause a runtime error in case the parameter is needed in
the calculation, but will be ignored otherwise.

Usage: Set by the user.

Members:
  description [String]
    Description: Free-form description of the scattering element,
    holding information deemed of interest by the user but not covered
    by other structure members (and not used within ARTS).
  source [String]
    Description: Free-form description of the source of the data,
    e.g., Mie, T-Matrix, or DDA calculation or a database or a
    literature source.
  refr_index [String]
    Description: Free-form description of the underlying complex
    refractive index data, e.g., a literature source.
  mass [Numeric]
    Unit: [kg]
    Description: The mass of the scattering element.
  diameter_max [Numeric]
    Unit: [m]
    Description: The maximum diameter (or dimension) of the scattering
    element, defined by the circumferential sphere diameter of the
    element. Note that this parameter is only used by some size
    distributions; it does not have a proper meaning if the scattering
    element represents an ensemble of differently sized particles.
  diameter_volume_equ [Numeric]
    Unit: [m]
    Description: The volume equivalent sphere diameter of the
    scattering element, i.e., the diameter of a sphere with the same
    volume. For nonspherical particles, volume refers to the volume
    of the particle-forming substance, not that of the circumferential
    sphere (which can be derived from diameter_max). If the particle
    consists of a mixture of materials, the substance
    encompasses the complete mixture. E.g., the substance of 'soft'
    ice particles includes both the ice and the air.
  diameter_area_equ_aerodynamical [Numeric]
    Unit: [m]
    Description: The area equivalent sphere diameter of the
    scattering element, i.e., the diameter of a sphere with the same
    cross-sectional area. Here, area refers to the aerodynamically
    relevant area, i.e., the cross-sectional area perpendicular to the
    direction of fall. Similarly to volume in the definition of
    diameter_volume_equ, for non-spherical and mixed-material
    particles, area refers to the area covered by the substance
    mixture of the particle.

Group: ScatteringMetaData

Specific methods that can generate scat_meta_single

• scat_data_singleTmatrix

Generic and supergeneric methods that can generate scat_meta_single

• ScatteringMetaDataCreate
• Copy
• ReadXML
• ReadXMLIndexed
• Touch

Specific methods that require scat_meta_single

• none

Generic and supergeneric methods that can use scat_meta_single

• Append
• Copy
• Delete
• Ignore
• Print
• WriteXML
• WriteXMLIndexed

Agendas that can generate scat_meta_single

• none

Agendas that require scat_meta_single

• none