m_abs.cc File Reference

Stuff related to the calculation of absorption coefficients. More...

#include <math.h>
#include <algorithm>
#include "arts.h"
#include "matpackI.h"
#include "array.h"
#include "messages.h"
#include "file.h"
#include "absorption.h"
#include "auto_wsv.h"
#include "auto_md.h"
#include "math_funcs.h"
#include "make_array.h"
#include "atm_funcs.h"
#include "continua.h"
#include "make_vector.h"

Go to the source code of this file.

Functions

void lines_per_tgSetEmpty (ArrayOfArrayOfLineRecord &lines_per_tg, const TagGroups &tgs)
 See the the online help (arts -d FUNCTION_NAME).
void linesReadFromHitran (ArrayOfLineRecord &lines, const String &filename, const Numeric &fmin, const Numeric &fmax)
 Reads line data in the Hitran 1986-2001 format (100 characters/record).
void linesReadFromHitran2004 (ArrayOfLineRecord &lines, const String &filename, const Numeric &fmin, const Numeric &fmax)
 Reads line data in the Hitran 2004 format (160 characters/record).
void linesReadFromMytran2 (ArrayOfLineRecord &lines, const String &filename, const Numeric &fmin, const Numeric &fmax)
void linesReadFromJpl (ArrayOfLineRecord &lines, const String &filename, const Numeric &fmin, const Numeric &fmax)
void linesReadFromArts (ArrayOfLineRecord &lines, const String &filename, const Numeric &fmin, const Numeric &fmax)
void linesElowToJoule (ArrayOfLineRecord &lines)
void lines_per_tgReadFromCatalogues (ArrayOfArrayOfLineRecord &lines_per_tg, const TagGroups &tgs, const ArrayOfString &filenames, const ArrayOfString &formats, const Vector &fmin, const Vector &fmax)
 This method can read lines from different line catalogues.
void lines_per_tgCreateFromLines (ArrayOfArrayOfLineRecord &lines_per_tg, const ArrayOfLineRecord &lines, const TagGroups &tgs)
void lines_per_tgAddMirrorLines (ArrayOfArrayOfLineRecord &lines_per_tg)
 Adds mirror lines at negative frequencies to the lines_per_tg.
void lines_per_tgCompact (ArrayOfArrayOfLineRecord &lines_per_tg, const ArrayOfLineshapeSpec &lineshape, const Vector &f_mono)
 Removes all lines outside the defined lineshape cutoff frequency from the lines_per_tg, in order to save computation time.
void linesWriteAscii (const ArrayOfLineRecord &lines, const String &f)
void lines_per_tgWriteAscii (const ArrayOfArrayOfLineRecord &lines_per_tg, const String &f)
void tgsDefine (TagGroups &tgs, const ArrayOfString &tags)
void tgsDefineAllInScenario (TagGroups &tgs, const String &basename)
void lineshapeDefine (ArrayOfLineshapeSpec &lineshape, const TagGroups &tgs, const String &shape, const String &normalizationfactor, const Numeric &cutoff)
void lineshape_per_tgDefine (ArrayOfLineshapeSpec &lineshape, const TagGroups &tgs, const ArrayOfString &shape, const ArrayOfString &normalizationfactor, const Vector &cutoff)
void raw_vmrsReadFromScenario (ArrayOfMatrix &raw_vmrs, const TagGroups &tgs, const String &basename)
void raw_vmrsReadFromFiles (ArrayOfMatrix &raw_vmrs, const TagGroups &tgs, const ArrayOfString &seltags, const ArrayOfString &filenames, const String &basename)
 Reads in the profiles from the specified files in filenames for the tag list seltags and for all the other tags the atmospheric profile from the general scenario stated in basename.
void WaterVaporSaturationInClouds (Matrix &vmrs, Vector &p_abs, const Vector &t_abs, const TagGroups &tgs)
 Calculates the water vapor saturation volume mixing ratio (VMR) in the vertical range where liquid or ice clouds are in the atmosphere.
void AtmFromRaw (Vector &t_abs, Vector &z_abs, Matrix &vmrs, const TagGroups &tgs, const Vector &p_abs, const Matrix &raw_ptz, const ArrayOfMatrix &raw_vmrs)
 Interpolate atmospheric quantities from their individual grids to the common p_abs grid.
void hseSet (Vector &hse, const Numeric &pref, const Numeric &zref, const Numeric &g0, const Index &niter)
 See the the online help (arts -d FUNCTION_NAME).
void hseSetFromLatitude (Vector &hse, const Numeric &pref, const Numeric &zref, const Numeric &latitude, const Index &niter)
 See the the online help (arts -d FUNCTION_NAME).
void hseSetFromLatitudeIndex (Vector &hse, const Vector &p_abs, const Vector &z_abs, const Numeric &latitude, const Index &index, const Index &niter)
 See the the online help (arts -d FUNCTION_NAME).
void hseFromBottom (Vector &hse, const Vector &p_abs, const Vector &z_abs, const Numeric &g0, const Index &niter)
 See the the online help (arts -d FUNCTION_NAME).
void hseOff (Vector &hse)
 See the the online help (arts -d FUNCTION_NAME).
void hseCalc (Vector &z_abs, const Vector &p_abs, const Vector &t_abs, const Vector &h2o_abs, const Numeric &r_geoid, const Vector &hse)
 See the the online help (arts -d FUNCTION_NAME).
void h2o_absSet (Vector &h2o_abs, const TagGroups &tgs, const Matrix &vmrs)
 See the the online help (arts -d FUNCTION_NAME).
void vmrsScale (Matrix &vmrs, const TagGroups &tgs, const ArrayOfString &scaltgs, const Vector &scalfac)
 See the the online help (arts -d FUNCTION_NAME).
void n2_absSet (Vector &n2_abs, const TagGroups &tgs, const Matrix &vmrs)
 See the the online help (arts -d FUNCTION_NAME) Just a copy of the function 'h2o_absSet' but now for nitrogen.
void absCalc (Matrix &abs, ArrayOfMatrix &abs_per_tg, const TagGroups &tgs, const Vector &f_mono, const Vector &p_abs, const Vector &t_abs, const Vector &n2_abs, const Vector &h2o_abs, const Matrix &vmrs, const ArrayOfArrayOfLineRecord &lines_per_tg, const ArrayOfLineshapeSpec &lineshape, const ArrayOfString &cont_description_names, const ArrayOfString &cont_description_models, const ArrayOfVector &cont_description_parameters)
 Calculates the absorption coefficients by first calculating the cross sections per tag group and then the absorption from the cross sections.
void absCalcSaveMemory (Matrix &abs, const TagGroups &tgs, const Vector &f_mono, const Vector &p_abs, const Vector &t_abs, const Vector &n2_abs, const Vector &h2o_abs, const Matrix &vmrs, const ArrayOfArrayOfLineRecord &lines_per_tg, const ArrayOfLineshapeSpec &lineshape, const ArrayOfString &cont_description_names, const ArrayOfString &cont_description_models, const ArrayOfVector &cont_description_parameters)
 Calculates the absorption coefficients by first calculating the cross sections per tag group and then the absorption from the cross sections.
void absCalcFromXsec (Matrix &abs, ArrayOfMatrix &abs_per_tg, const ArrayOfMatrix &xsec_per_tg, const Matrix &vmrs)
 Calculates the absorption from a given cross section.
void xsec_per_tgInit (ArrayOfMatrix &xsec_per_tg, const TagGroups &tgs, const Vector &f_mono, const Vector &p_abs)
 Initialize xsec_per_tg.
void xsec_per_tgAddLines (ArrayOfMatrix &xsec_per_tg, const TagGroups &tgs, const Vector &f_mono, const Vector &p_abs, const Vector &t_abs, const Vector &h2o_abs, const Matrix &vmrs, const ArrayOfArrayOfLineRecord &lines_per_tg, const ArrayOfLineshapeSpec &lineshape)
 Calculates the line spectrum for each tag group and adds it to xsec_per_tg.
void xsec_per_tgAddConts (ArrayOfMatrix &xsec_per_tg, const TagGroups &tgs, const Vector &f_mono, const Vector &p_abs, const Vector &t_abs, const Vector &n2_abs, const Vector &h2o_abs, const Matrix &vmrs, const ArrayOfString &cont_description_names, const ArrayOfVector &cont_description_parameters, const ArrayOfString &cont_description_models)
 Calculates the continuum for each tag group and adds it to xsec_per_tg.
void abs_per_tgReduce (ArrayOfMatrix &abs_per_tg, const TagGroups &tgs, const TagGroups &wfs_tgs)
 Reduces the size of abs_per_tg.
void refrSet (Index &refr, Index &refr_lfac, String &refr_model, const Index &on, const String &model, const Index &lfac)
 See the the online help (arts -d FUNCTION_NAME).
void refrOff (Index &refr, Index &refr_lfac, String &refr_model)
 See the the online help (arts -d FUNCTION_NAME).
void refrCalc (Vector &refr_index, const Vector &p_abs, const Vector &t_abs, const Vector &h2o_abs, const Index &refr, const String &refr_model)
 See the the online help (arts -d FUNCTION_NAME).
void cont_descriptionInit (ArrayOfString &names, ArrayOfString &options, ArrayOfVector &parameters)
 Initializes the two continuum description WSVs, `cont_description_names' and `cont_description_parameters'.
void cont_descriptionAppend (ArrayOfString &cont_description_names, ArrayOfString &cont_description_models, ArrayOfVector &cont_description_parameters, const String &tagname, const String &model, const Vector &userparameters)
 Append a continuum description to `cont_description_names' and `cont_description_parameters'.

Detailed Description

Stuff related to the calculation of absorption coefficients.

Author:
Stefan Buehler
Date:
2001-03-12

Definition in file m_abs.cc.

Function Documentation

void abs_per_tgReduce ( ArrayOfMatrix &  abs_per_tg,
const TagGroups &  tgs,
const TagGroups &  wfs_tgs 
)

Reduces the size of abs_per_tg.

Only absorption coefficients for which weighting functions are calculated are kept in memory.

Return values:
abs_per_tg absorption coefficients
Parameters:
tgs all selected tag groups
wfs_tgs the tag groups for which we want weighting functions.
Author:
Axel von Engeln and Stefan Buehler

Definition at line 2668 of file m_abs.cc.

void absCalc ( Matrix &  abs,
ArrayOfMatrix &  abs_per_tg,
const TagGroups &  tgs,
const Vector &  f_mono,
const Vector &  p_abs,
const Vector &  t_abs,
const Vector &  n2_abs,
const Vector &  h2o_abs,
const Matrix &  vmrs,
const ArrayOfArrayOfLineRecord &  lines_per_tg,
const ArrayOfLineshapeSpec &  lineshape,
const ArrayOfString &  cont_description_names,
const ArrayOfString &  cont_description_models,
const ArrayOfVector &  cont_description_parameters 
)

Calculates the absorption coefficients by first calculating the cross sections per tag group and then the absorption from the cross sections.

Return values:
abs absorption coefficients
abs_per_tg absorption coefficients per tag group
Parameters:
tgs the list of tag groups
f_mono monochromatic frequency grid
p_abs pressure levels
t_abs temperature at pressure level
h2o_abs total volume mixing ratio of water vapor
vmrs volume mixing ratios per tag group
lines_per_tg transition lines per tag group
lineshape lineshape specifications to use per tag group
cont_description_names names of different continuum models
cont_description_parameters continuum parameters for the models listed in cont_description_names
Author:
Axel von Engeln
Date:
2001-01-11
Author:
Stefan Buehler
Date:
2001-03-13

Definition at line 1955 of file m_abs.cc.

void absCalcFromXsec ( Matrix &  abs,
ArrayOfMatrix &  abs_per_tg,
const ArrayOfMatrix &  xsec_per_tg,
const Matrix &  vmrs 
)

Calculates the absorption from a given cross section.

Only the cross section and the vmrs are required, it is assumed that the vmrs are in the order of the cross sections, only the dimension is checked.

Return values:
abs absorption coefficients
abs_per_tg absorption coefficients per tag group
Parameters:
xsec_per_tg cross sections per tag group
vmrs volume mixing ratios per tag group
Author:
Stefan Bühler and Axel von Engeln
Date:
2001-01-11

Definition at line 2151 of file m_abs.cc.

void absCalcSaveMemory ( Matrix &  abs,
const TagGroups &  tgs,
const Vector &  f_mono,
const Vector &  p_abs,
const Vector &  t_abs,
const Vector &  n2_abs,
const Vector &  h2o_abs,
const Matrix &  vmrs,
const ArrayOfArrayOfLineRecord &  lines_per_tg,
const ArrayOfLineshapeSpec &  lineshape,
const ArrayOfString &  cont_description_names,
const ArrayOfString &  cont_description_models,
const ArrayOfVector &  cont_description_parameters 
)

Calculates the absorption coefficients by first calculating the cross sections per tag group and then the absorption from the cross sections.

This is done in a loop over species, in order to save memory. we only calculate abs, not abs_per_tg!

Return values:
abs absorption coefficients
Parameters:
tgs the list of tag groups
f_mono monochromatic frequency grid
p_abs pressure levels
t_abs temperature at pressure level
h2o_abs total volume mixing ratio of water vapor
vmrs volume mixing ratios per tag group
lines_per_tg transition lines per tag group
lineshape lineshape specifications to use per tag group
cont_description_names names of different continuum models
cont_description_parameters continuum parameters for the models listed in cont_description_names
Author:
Stefan Buehler
Date:
2003-07-17

Definition at line 2033 of file m_abs.cc.

void AtmFromRaw ( Vector &  t_abs,
Vector &  z_abs,
Matrix &  vmrs,
const TagGroups &  tgs,
const Vector &  p_abs,
const Matrix &  raw_ptz,
const ArrayOfMatrix &  raw_vmrs 
)

Interpolate atmospheric quantities from their individual grids to the common p_abs grid.

See also arts -d online documentation.

This function does the following: 1. Interpolation of temperature and altitude 2. Interpolation of VMR profiles 3. Saturation adjustment VMR profiles of H2O tags in clouds

Step 3 is only carried out if keyword CloudSatWV is set to "yes".

Definition at line 1482 of file m_abs.cc.

void cont_descriptionAppend ( ArrayOfString &  cont_description_names,
ArrayOfString &  cont_description_models,
ArrayOfVector &  cont_description_parameters,
const String &  tagname,
const String &  model,
const Vector &  userparameters 
)

Append a continuum description to `cont_description_names' and `cont_description_parameters'.

It is checked that the name given is indeed the name of an allowed continuum model. This is done by looking in the species_data lookup table.

Author:
Stefan Buehler
Date:
2001-03-12

Definition at line 2850 of file m_abs.cc.

void cont_descriptionInit ( ArrayOfString &  names,
ArrayOfString &  options,
ArrayOfVector &  parameters 
)

Initializes the two continuum description WSVs, `cont_description_names' and `cont_description_parameters'.

This method does not really do anything, except setting the two variables to empty Arrays. It is just necessary because the method `cont_descriptionAppend' wants to append to the variables.

Formally, the continuum description WSVs are required by the absorption calculation methods (e.g., `absCalc'). Therefore you always have to call `cont_descriptionInit'.

Usage example: cont_descriptionInit{}

Author:
Stefan Buehler
Date:
2001-03-12

Definition at line 2826 of file m_abs.cc.

void h2o_absSet ( Vector &  h2o_abs,
const TagGroups &  tgs,
const Matrix &  vmrs 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Patrick Eriksson
Date:
2001-01-18

Definition at line 1792 of file m_abs.cc.

void hseCalc ( Vector &  z_abs,
const Vector &  p_abs,
const Vector &  t_abs,
const Vector &  h2o_abs,
const Numeric &  r_geoid,
const Vector &  hse 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Patrick Eriksson
Date:
2001-04-19

Definition at line 1716 of file m_abs.cc.

void hseFromBottom ( Vector &  hse,
const Vector &  p_abs,
const Vector &  z_abs,
const Numeric &  g0,
const Index &  niter 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Patrick Eriksson
Date:
2001-04-18

Definition at line 1680 of file m_abs.cc.

void hseOff ( Vector &  hse  ) 

See the the online help (arts -d FUNCTION_NAME).

Author:
Patrick Eriksson
Date:
2001-04-18

Definition at line 1698 of file m_abs.cc.

void hseSet ( Vector &  hse,
const Numeric &  pref,
const Numeric &  zref,
const Numeric &  g0,
const Index &  niter 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Patrick Eriksson
Date:
2001-04-18

Definition at line 1607 of file m_abs.cc.

void hseSetFromLatitude ( Vector &  hse,
const Numeric &  pref,
const Numeric &  zref,
const Numeric &  latitude,
const Index &  niter 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Axel von Engeln
Date:
2003-07-23

Definition at line 1629 of file m_abs.cc.

void hseSetFromLatitudeIndex ( Vector &  hse,
const Vector &  p_abs,
const Vector &  z_abs,
const Numeric &  latitude,
const Index &  index,
const Index &  niter 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Axel von Engeln
Date:
2003-07-24

Definition at line 1652 of file m_abs.cc.

void lines_per_tgAddMirrorLines ( ArrayOfArrayOfLineRecord &  lines_per_tg  ) 

Adds mirror lines at negative frequencies to the lines_per_tg.

For each line at frequency +f in lines_per_tg a corresponding entry at frequency -f is added to lines_per_tg.

Return values:
lines_per_tg The array of arrays of lines for each tag group.
Author:
Axel von Engeln and Stefan Buehler

Definition at line 722 of file m_abs.cc.

void lines_per_tgCompact ( ArrayOfArrayOfLineRecord &  lines_per_tg,
const ArrayOfLineshapeSpec &  lineshape,
const Vector &  f_mono 
)

Removes all lines outside the defined lineshape cutoff frequency from the lines_per_tg, in order to save computation time.

It should be particularly useful to call this method after lines_per_tgAddMirrorLines.

Return values:
lines_per_tg the old and newly compacted line list
Parameters:
lineshape the lineshape specifications
f_mono the frequency grid
Author:
Axel von Engeln and Stefan Buehler

Definition at line 766 of file m_abs.cc.

void lines_per_tgCreateFromLines ( ArrayOfArrayOfLineRecord &  lines_per_tg,
const ArrayOfLineRecord &  lines,
const TagGroups &  tgs 
)

Definition at line 577 of file m_abs.cc.

void lines_per_tgReadFromCatalogues ( ArrayOfArrayOfLineRecord &  lines_per_tg,
const TagGroups &  tgs,
const ArrayOfString &  filenames,
const ArrayOfString &  formats,
const Vector &  fmin,
const Vector &  fmax 
)

This method can read lines from different line catalogues.

For each tag group, you can specify which catalogue to use. Because the method creates lines_per_tg directly, it replaces for example the following two method calls:

  • linesReadFromHitran
  • lines_per_tgCreateFromLines

This method needs as input WSVs the list of tag groups. Keyword parameters must specify the names of the catalogue files to use and the matching formats. Names can be anything, formats can currently be HITRAN96 (for HITRAN 1986-2001 databases), HITRAN04 (for HITRAN 2004 databse), MYTRAN2, JPL, or ARTS. Furthermore, keyword parameters have to specify minimum and maximum frequency for each tag group. To safe typing, if there are less elements in the keyword parameters than there are tag groups, the last parameters are applied to all following tag groups.

Example usage:

lines_per_tgReadFromCatalogues{ filenames = [ "../data/cat1.dat", "../data/cat2.dat" ] formats = [ "MYTRAN2", "HITRAN96" ] fmin = [ 0, 0 ] fmax = [ 2000e9, 100e9 ] }

In this example, lines for the first tag group will be taken from cat1, lines for all other tag groups will be taken from cat2.

This methods allows you for example to use a special line file just for water vapor lines. This could be the improved water vapor line file generated by Thomas Kuhn.

Catalogues are only read once, even if several tag groups have the same catalogue. However, in that case the frequency ranges MUST be the same. (If you want to do fine-tuning of the frequency ranges, you can do this inside the tag definitions, e.g., "H2O-*-0-2000e9".)

This function uses the various reading routines (linesReadFromHitran, etc.), as well as lines_per_tgCreateFromLines.

Author:
Stefan Buehler
Date:
2000-01-19

Definition at line 371 of file m_abs.cc.

void lines_per_tgSetEmpty ( ArrayOfArrayOfLineRecord &  lines_per_tg,
const TagGroups &  tgs 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Stefan Buehler
Date:
2001-10-02

Definition at line 54 of file m_abs.cc.

void lines_per_tgWriteAscii ( const ArrayOfArrayOfLineRecord &  lines_per_tg,
const String &  f 
)

Definition at line 871 of file m_abs.cc.

void linesElowToJoule ( ArrayOfLineRecord &  lines  ) 

Definition at line 319 of file m_abs.cc.

void lineshape_per_tgDefine ( ArrayOfLineshapeSpec &  lineshape,
const TagGroups &  tgs,
const ArrayOfString &  shape,
const ArrayOfString &  normalizationfactor,
const Vector &  cutoff 
)

Definition at line 1092 of file m_abs.cc.

void lineshapeDefine ( ArrayOfLineshapeSpec &  lineshape,
const TagGroups &  tgs,
const String &  shape,
const String &  normalizationfactor,
const Numeric &  cutoff 
)

Definition at line 1030 of file m_abs.cc.

void linesReadFromArts ( ArrayOfLineRecord &  lines,
const String &  filename,
const Numeric &  fmin,
const Numeric &  fmax 
)

Definition at line 251 of file m_abs.cc.

void linesReadFromHitran ( ArrayOfLineRecord &  lines,
const String &  filename,
const Numeric &  fmin,
const Numeric &  fmax 
)

Reads line data in the Hitran 1986-2001 format (100 characters/record).

For Hitran version 2004 use linesReadFromHitran2004().

Remarks:
<a href="http://www.hitran.com/>WWW access of the HITRAN catalog.
Author:
Thomas Kuhn
Date:
2001-11-05

Definition at line 77 of file m_abs.cc.

void linesReadFromHitran2004 ( ArrayOfLineRecord &  lines,
const String &  filename,
const Numeric &  fmin,
const Numeric &  fmax 
)

Reads line data in the Hitran 2004 format (160 characters/record).

For Hitran versions 1986-2001 use linesReadFromHitran().

Remarks:
<a href="http://www.hitran.com/>WWW access of the HITRAN catalog.
Author:
Hermann Berg based on Thomas Kuhn
Date:
2005-03-29

Definition at line 126 of file m_abs.cc.

void linesReadFromJpl ( ArrayOfLineRecord &  lines,
const String &  filename,
const Numeric &  fmin,
const Numeric &  fmax 
)

Remarks:
<a href="http://spec.jpl.nasa.gov/home.html>WWW access of the JPL catalog.
Author:
Thomas Kuhn
Date:
2001-11-05

Definition at line 210 of file m_abs.cc.

void linesReadFromMytran2 ( ArrayOfLineRecord &  lines,
const String &  filename,
const Numeric &  fmin,
const Numeric &  fmax 
)

Definition at line 166 of file m_abs.cc.

void linesWriteAscii ( const ArrayOfLineRecord &  lines,
const String &  f 
)

Definition at line 848 of file m_abs.cc.

void n2_absSet ( Vector &  n2_abs,
const TagGroups &  tgs,
const Matrix &  vmrs 
)

See the the online help (arts -d FUNCTION_NAME) Just a copy of the function 'h2o_absSet' but now for nitrogen.

Author:
Patrick Eriksson
Date:
2001-01-18

Definition at line 1885 of file m_abs.cc.

void raw_vmrsReadFromFiles ( ArrayOfMatrix &  raw_vmrs,
const TagGroups &  tgs,
const ArrayOfString &  seltags,
const ArrayOfString &  filenames,
const String &  basename 
)

Reads in the profiles from the specified files in filenames for the tag list seltags and for all the other tags the atmospheric profile from the general scenario stated in basename.

Parameters:
raw_vmrs volume mixing ratios per tag group (output)
tgs the list of tag groups (input)
seltags selected tags for special input files (input)
filenames specific files for list of seltags (input)
basename general scenario base name (input)
Author:
Thomas Kuhn / Stefan Buehler
Date:
2001-08-02 / 2001-09-19

Definition at line 1222 of file m_abs.cc.

void raw_vmrsReadFromScenario ( ArrayOfMatrix &  raw_vmrs,
const TagGroups &  tgs,
const String &  basename 
)

Definition at line 1178 of file m_abs.cc.

void refrCalc ( Vector &  refr_index,
const Vector &  p_abs,
const Vector &  t_abs,
const Vector &  h2o_abs,
const Index &  refr,
const String &  refr_model 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Patrick Eriksson
Date:
2001-04-19

Definition at line 2762 of file m_abs.cc.

void refrOff ( Index &  refr,
Index &  refr_lfac,
String &  refr_model 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Patrick Eriksson
Date:
2001-01-22

Definition at line 2745 of file m_abs.cc.

void refrSet ( Index &  refr,
Index &  refr_lfac,
String &  refr_model,
const Index &  on,
const String &  model,
const Index &  lfac 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Patrick Eriksson
Date:
2001-04-19

Definition at line 2720 of file m_abs.cc.

void tgsDefine ( TagGroups &  tgs,
const ArrayOfString &  tags 
)

Definition at line 900 of file m_abs.cc.

void tgsDefineAllInScenario ( TagGroups &  tgs,
const String &  basename 
)

Definition at line 974 of file m_abs.cc.

void vmrsScale ( Matrix &  vmrs,
const TagGroups &  tgs,
const ArrayOfString &  scaltgs,
const Vector &  scalfac 
)

See the the online help (arts -d FUNCTION_NAME).

Author:
Carlos Jimenez
Date:
2001-08-14

Definition at line 1847 of file m_abs.cc.

void WaterVaporSaturationInClouds ( Matrix &  vmrs,
Vector &  p_abs,
const Vector &  t_abs,
const TagGroups &  tgs 
)

Calculates the water vapor saturation volume mixing ratio (VMR) in the vertical range where liquid or ice clouds are in the atmosphere.

At the pressure/altitude grid points where the liquid water content (LWC) or ice water content (IWC) is larger than zero the H2O-VMR is set to liquid water/ice saturation VMR (=e_s/p_tot).
The saturation pressure (e_s) is calculated according to the Goff-Gratch equations (see functions WVSatPressureLiquidWater and WVSatPressureIce in file continua.cc).

Before adjustment:
VMRH2O = H2O volume mixing ratio
Ptot = total air pressure
PH2O = H2O partial pressure
Pdry = dry air partial pressure

after adjustment:
VMR'H2O = H2O volume mixing ratio
P'tot = total air pressure
P'H2O = H2O partial pressure

H2O saturation pressure over water / ice:
es

calculation of the adjustment:
PH2O = VMRH2O * Ptot
Pdry = Ptot * (1.0 - VMRH2O)
P'H2O = es
P'tot = es + Pdry
VMR'H2O = P'H2O / P'tot

Parameters:
vmrs [1] volume mixing ratios per tag group (input/output)
t_abs [K] temperature at pressure level (input)
p_abs [Pa] pressure levels (input)
tgs [1] the list of tag groups (input)
Author:
Thomas Kuhn
Date:
2001-08-02

Definition at line 1345 of file m_abs.cc.

void xsec_per_tgAddConts ( ArrayOfMatrix &  xsec_per_tg,
const TagGroups &  tgs,
const Vector &  f_mono,
const Vector &  p_abs,
const Vector &  t_abs,
const Vector &  n2_abs,
const Vector &  h2o_abs,
const Matrix &  vmrs,
const ArrayOfString &  cont_description_names,
const ArrayOfVector &  cont_description_parameters,
const ArrayOfString &  cont_description_models 
)

Calculates the continuum for each tag group and adds it to xsec_per_tg.

Return values:
xsec_per_tg cross section per tag group
Parameters:
tgs the list of tag groups
f_mono monochromatic frequency grid
p_abs pressure levels
t_abs temperature at pressure level
n2_abs total volume mixing ratio of nitrogen
h2o_abs total volume mixing ratio of water vapor
vmrs volume mixing ratios per tag group
cont_description_names names of different continuum models
cont_description_parameters continuum parameters for the models listed in cont_description_names
Exceptions:
runtime_error something went wrong
Author:
Stefan Bühler
Date:
2001-03-12

Definition at line 2490 of file m_abs.cc.

void xsec_per_tgAddLines ( ArrayOfMatrix &  xsec_per_tg,
const TagGroups &  tgs,
const Vector &  f_mono,
const Vector &  p_abs,
const Vector &  t_abs,
const Vector &  h2o_abs,
const Matrix &  vmrs,
const ArrayOfArrayOfLineRecord &  lines_per_tg,
const ArrayOfLineshapeSpec &  lineshape 
)

Calculates the line spectrum for each tag group and adds it to xsec_per_tg.

Return values:
xsec_per_tg cross section per tag group
Parameters:
tgs the list of tag groups
f_mono monochromatic frequency grid
p_abs pressure levels
t_abs temperature at pressure level
h2o_abs total volume mixing ratio of water vapor
vmrs volume mixing ratios per tag group
lines_per_tg transition lines per tag group
lineshape lineshape specifications to use per tag group
Author:
Stefan Bühler and Axel von Engeln
Date:
2001-01-11

Definition at line 2273 of file m_abs.cc.

void xsec_per_tgInit ( ArrayOfMatrix &  xsec_per_tg,
const TagGroups &  tgs,
const Vector &  f_mono,
const Vector &  p_abs 
)

Initialize xsec_per_tg.

The initialization is necessary, because methods `xsec_per_tgAddLines' and `xsec_per_tgAddConts' just add to xsec_per_tg.

Return values:
xsec_per_tg cross section per tag group
Parameters:
tgs the list of tag groups
f_mono monochromatic frequency grid
p_abs pressure levels
Author:
Stefan Buehler
Date:
2001-03-12

Definition at line 2230 of file m_abs.cc.

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