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Workspace Method psdFieldEtAl19

Description

The Field [2019] particle size distribution for hail.

Reference: Field, Normalized hail particle size distributions from the T-28
storm-penetrating aircraft, JAMC, 2019

This is a 1-parmater PSD i.e. pnd_agenda_input shall have one column and
pnd_agenda_input_names shall contain a single string.
The input data in pnd_agenda_input shall be hail mass content in
unit of [kg/m3]. The naming used is pnd_agenda_input_names is free
but the same name must be used in particle_bulkprop_names and
dpnd_data_dx_names.
The parameters assume a constant effective density, i.e. scat_species_b pprox 3

Derivatives are obtained analytically.

The validity range of mass content is not limited. Negative mass
contents will produce negative psd values following a distribution
given by abs(HWC), ie. abs(psd)=f(abs(HWC)).

If temperature is outside [*t_min*,*t_max*] psd=0 and dpsd=0 if
picky=0, or an error is thrown if picky=1.

Authors: Stuart Fox

Synopsis

psdFieldEtAl19(

psd_data, dpsd_data_dx, psd_size_grid, pnd_agenda_input_t, pnd_agenda_input, pnd_agenda_input_names, dpnd_data_dx_names, scat_species_a, scat_species_b, t_min, t_max, picky )

Variables

OUT	psd_data	(Matrix)	Particle size distribution values for a set of points.
OUT	dpsd_data_dx	(Tensor3)	Partial derivates of psd_data.
IN	psd_size_grid	(Vector)	The particle sizes associated with psd_data.
IN	pnd_agenda_input_t	(Vector)	Temperature input to one element of pnd_agenda_array.
IN	pnd_agenda_input	(Matrix)	The variable input to one element of pnd_agenda_array.
IN	pnd_agenda_input_names	(ArrayOfString)	Naming of (existing or expected) data in pnd_agenda_input.
IN	dpnd_data_dx_names	(ArrayOfString)	Selection of partial derivatives of pnd_data.
IN	scat_species_a	(Numeric)	Mass-size relationship parameter, for one scattering species.
IN	scat_species_b	(Numeric)	Mass-size relationship parameter, for one scattering species.
GIN	t_min	(Numeric)	Low temperature limit to calculate a psd.
GIN	t_max	(Numeric)	High temperature limit to calculate a psd.
GIN	picky	(Index, Default: 0)	Flag whether to be strict with parametrization value checks.