scat_meta_single
- property Workspace.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.
- description [
Workspace methods that can generate scat_meta_single
Generic workspace methods that can generate or use scat_meta_single
See
ScatteringMetaDataand/orAny- type:
WorkspaceVariable- holds typeScatteringMetaData