Line Parameter Database
AER: aer_v_3.1
Date: November 2011
The current AER line parameter database aer_v_3.1 includes the following updates to aer_v_3.0.
- CO2 line parameters
- The
positions and intesities of CO2 lines have been corrected in aer_v_3.1
to match HITRAN 2008 outside the spectral range 597-2500 cm-1. The positions and intensities outside 597-2500 cm-1 in aer_v_3.0 were incorrectly taken from HITRAN 2004. Within 597-2500 cm-1, the positions and
intensities are consistent with the Carbon Dioxide Spectral Database,
maintained by S. Tashkun, Tomsk, as contained in aer_v_2.4, aer_v_3.0,
and the hitran_mipas_pf3.2 line file (Flaud et al., 2003).
- The first order line coupling parameters for CO2 in aer_v_3.1
have also been recalculated using the above positions and intensities
and the CO2 line mixing database of Lamouroux et al., 2010, as
described below for aer_v_3.0. Small changes were made to the Lamouroux
code to maintain the sum rules when two lines in the same vibrational
band are within 1.0e-4 cm-1 of each other.
- SF6 and ClONO2 line parameters
- These
HITRAN 2008 line files are now included in aer_v_3.1. However, the line
parameters for ClONO2 are not as complete as the cross section data,
and so users are advised to use the cross-section data supplied with
LBLRTM v12.1 instead of the line parameter data for this molecule.
AER: aer_v_3.0
Date: January 2011
The current AER line parameter database
aer_v_3.0 includes 39 molecules, and has been updated to adopt
HITRAN 2008 line parameters with the exceptions noted below.
Additional details are provided in the headers of each linefile by molecule and in the total linefile.
- H2O line parameters
- The intensities for the lines at 0.7417 cm-1 (22.233 GHz),
6.1145 cm-1 (183.3 GHz), 10.84 cm-1 (325 GHz) and 12.68 cm-1 (380 GHz)
are based on the work of S. A. Clough (1973).
- The air-broadened half-widths, self-broadened half-widths, temperature dependence of the widths, and the shifts
for the lines at 0.7417 cm-1 (22.233 GHz), 6.1145 cm-1 (183.3 GHz),
10.84 cm-1 (325 GHz) and 12.68 cm-1 (380 GHz) are described in Payne et
al. (2008) and Koshelev (2007).
- Line positions and intensities for the wavenumber range 10 to 2500 cm-1 are from Coudert et al. (2008). This AER line file contains
both measured and calculated Coudert et al values, while HITRAN 2008
includes measured values only, which stop at 1750 cm-1.
- The air-broadened half-widths, temperature dependences, and pressure shifts from 350-667 cm-1 are described in Delamere et al. (2010).
- CO2 line parameters
- CO2 line parameters were built using the CO2 line mixing
database of Lamouroux et al., 2010. This database takes most of its
line positions, intensities, and lower state energies from the HITRAN
2008 database, but the values for air-broadened half-widths and their
temperature dependencies are adjusted from the HITRAN 2008 values to be
consistent throughout the bands, and the air-induced pressure shifts (not given for a majority of transitions in HITRAN
2008) were added.
- The CO2 line intensities and positions in the spectral range
597-2500 cm-1 are consistent with the Carbon Dioxide Spectral Database,
maintained by S. Tashkun, Tomsk, as in aer_v_2.4 and as implemented in
the hitran_mipas_pf3.2 line file (Flaud et al., 2003).
- First order line coupling coefficients for the first seven
isotopologues of CO2 were recalculated using the above parameters and
the method of Niro et al., 2005.
- CH4 line parameters
- CH4 line parameters now include line coupling parameters for
the v3 (3000 cm-1) and v4 (1300 cm-1) bands of the main isotopologue.
The line coupling parameters were calculated using the HITRAN 2008 line
parameters and the method of Tran et al., 2006.
- O2 line parameters
- The line widths, the temperature dependence of the widths, and
the line coupling parameters for the 2 cm-1 (60 GHz) band and the 3.96
cm-1 (120 GHz) line of O2 are those of Tretyakov et al., 2005.
- All oxygen lines above 0 cm-1 and below 1.49751 cm-1 have
been removed from this file and replaced by a single line in the
operation with a strength appropriate to the lines removed and a width
reflecting the effects of line coupling. The lines removed are d604 and
d601 lines.
AER: aer_v_2.4
Date: January 2010
The current AER line parameter database aer_v_2.4 has been updated with the
following water vapor and carbon dioxide line parameter changes:
The carbon dioxide line positions and
intensities in this file are from the Carbon Dioxide Spectral Database,
maintained by S. Tashkun, Tomsk, as implemented in the
hitran_mipas_pf3.2 line file (Flaud et al., 2003). The CDSD parameters
have been implemented in the spectral range 597-2500 cm-1, and the
first order line coupling coefficients re-calculated using the
formalism of Niro et al. (2005). The CDSD line parameters and coupling
coefficients have been validated using AIRS and IASI data.
Water vapor line shifts and line-width temperature dependences have been updated for numerous lines from 436 to 2396 cm-1
with calculations provided by R. R. Gamache (personal
communication). These updated water vapor line parameters have
been validated using data from AIRS, IASI and from the ARM NSA AERI-ER.
TES: tes_v_1.5
Date: November 2009
The current TES line parameter database tes_v_1.5 has been updated with the following water vapor and carbon dioxide line parameter changes:
The carbon dioxide line positions and
intensities in this file are from the Carbon Dioxide Spectral Database,
maintained by S. Tashkun, Tomsk, as implemented in the
hitran_mipas_pf3.2 line file (Flaud et al., 2003). The CDSD parameters
have been implemented in the spectral range 597-2500 cm-1, and the
first order line coupling coefficients re-calculated using the
formalism of Niro et al. (2005). The CDSD line parameters and coupling
coefficients have been validated using AIRS and IASI data.
- Water vapor line shifts and line-width temperature dependences have been
updated for number lines from 436 to 2396 cm-1
with calculations provided by R. R. Gamache (personal communication).
These updated water vapor line parameters have been validated using
data from AIRS, IASI and from the ARM NSA AERI-ER.
- The line widths, line shifts and width temperature dependence on this file
are from Gamache, email 2008/07/15. The Gamache parameters
are for the main isotope only and have been used between 350 - 667 cm-1
where they have been validated with the NSA AERI-ER.
-
The line widths and in some cases line shifts of selected lines in the
far-IR have been adjusted to improve the agreement with downwelling spectral
radiance data at the NSA ARM site. The results of this analysis will appear
in a publication by J. Delamere et al. 2010.
-
Used the line position, line intensity, and Einstein A-Coefficient provided
by L. Coudert (2008) for isotopologue 1 from 10 to 2500 cm-1. There
were 7025 lines in the 01_hit06.par file, which provides the line
parameters in this range. There are 6621 lines in the Coudert file.
The lines not provided by Coudert were retained in this database.
Data closely follows publication: Coudert et al., 2008, Vol. 251,
pp. 339-351 (J. Molecular Spectroscopy).
L. H. Coudert
Laboratoire Interuniversitaire des Systemes Atmospheriques
Faculte des Sciences et Technologie
Universite Paris 12
61, Avenue du General de Gaulle
94010 Creteil Cedex, France
AER: aer_v_2.2
Date: June 2009
The current AER version is aer_v_2.2 is the same as aer_v_2.1 with the
following additional changes to the water vapor lines:
-
The line widths, line shifts and width temperature dependence on this file
are from Gamache, email 2008/07/15. The Gamache parameters
are for the main isotope only and have been used between 350 - 667 cm-1
where they have been validated with the ARM NSA AERI-ER.
-
The line widths and in some cases line shifts of selected lines in the
far-IR have been adjusted to improve the agreement with downwelling spectral
radiance data at the NSA ARM site. The results of this analysis will appear
in a publication by J. Delamere et al. 2010.
-
Used the line position, line intensity, and Einstein A-Coefficient provided
by L. Coudert (2008) for isotopologue 1 from 10 to 2500 cm-1. There
were 7025 lines in the 01_hit06.par file, which provides the line
parameters in this range. There are 6621 lines in the Coudert file.
The lines not provided by Coudert were retained in this database.
Data closely follows publication: Coudert et al., 2008, Vol. 251,
pp. 339-351 (J. Molecular Spectroscopy).
L. H. Coudert
Laboratoire Interuniversitaire des Systemes Atmospheriques
Faculte des Sciences et Technologie
Universite Paris 12
61, Avenue du General de Gaulle
94010 Creteil Cedex, France
AER: aer_v_2.1
Date: November 2007
The current AER version is aer_v_2.1
is the same as aer_v_2.0 with the addition of Methonal (CH3OH) from HITRAN2004
TES: tes_v_1.4
Date: November 2007
The CO2 line parameters are from HITRAN2000 as they are the most recent
lines in which Niro et al. have created line coupling/mixing coefficients.
The number of CO2 bands that contain line coupling parameters provided
by Niro et al., 2005 was extended (consistent with aer_v_2.0).
Updated H2O lines to include the updated HITRAN2004 water vapor lines.
Added CH3OH (methonal) to the tes line file.
F. Niro, K. Jucks, J.-M. Hartmann, Spectra
calculations in central and wing regions of CO2 IR bands. IV : Software
and database for the computation of atmospheric spectra, in J Quant Spectrosc
Radiat Transfer. Vol. 95, 2005, pp. 469-481
AER: aer_v_2.0
Date: July 2007
The current AER version is aer_v_2.0
is built from HITRAN2004 and includes
updates up to 01/01/2007.
The line files have been convert from HITRAN f160 to HITRAN f100 format.
The line file aer_v_2.0 is the same as aer_v_1.1 except that
Niro et al., (2005) P/Q/RCO2
line coupling/mixing parameters are included.
***********************************************************************
*
* LINE COUPLING PARAMETERS ARE PROVIDED FOR CO2 PQR
BRANCHES for the 1st and 2nd isotope.
*
* F. Niro, K. Jucks, J.-M. Hartmann, Spectra
calculations in central and wing regions of CO2 IR bands. IV : Software
and database for the computation of atmospheric spectra, (2005), J Quant
Spectrosc Radiat Transfer, 95, 469-481.
*
* These coefficients corresponde to HITRAN2000 carbon
dioxide line parameters.
*
***********************************************************************
For a detail description of the file contents refer to the header on
the top of the files.
The line list covers the full HITRAN spectral region and is provided
both as one total line list (line_file/*) and as seperate
individual
line lists for each molecule (line_files_By_Molecule/*).
AER: aer_v_1.1
Date: June 2007
The current AER version is aer_v_1.1
is built from HITRAN2004 and includes
updates up to 01/01/2007.
The line files have been convert from HITRAN f160 to HITRAN f100 format.
Differences from HITRAN 2004 are:
01_H2O : The intensities for the
lines at 0.7417 cm-1 (22.233 GHz) and 6.1145 cm-1 (183 GHz).
01_H2O : - based
on the work of S.A. Clough 2002
01_H2O :
01_H2O : The widths, temperature
dependence of the widths, and the shifts
01_H2O :
for the lines at 0.7417 cm-1 (22.233 GHz) and 6.1145 cm-1 (183 GHz)
01_H2O : - based
on the work of Bob Gamache (2007) see V. Payne et al., 2007
02_CO2 : HITRAN 2000 CO2 lines are
used to be consistent with line coupling parameters.
07_O2 : All oxygen lines above
0 cm-1 and below 1.497951 have been removed from this file and
07_O2 : replaced by a single
line in the merge operation with a strength
07_O2 : appropriate to the
lines removed and a width reflecting the effects of line coupling.
07_O2 : The lines removed
are d604 and d601 lines.
FOR CO2 ONLY Q-BRANCH LINE
COUPLING(MIXING) PARAMETERS ARE INCLUDED IN THIS LINE FILE
lncpl_lines:* LINE COUPLING PARAMETERS ARE PROVIDED
FOR CO2 Q BRANCHES AT
lncpl_lines:* 618 CM-1, 667 CM-1, 720 CM-1,
721 CM-1, 742 CM-1 AND 792 CM-1.
lncpl_lines:* (for additional Q-branches see
below)
lncpl_lines:* ...................................................................
lncpl_lines:*
lncpl_lines:* Includes first and second order Q-branch line coupling
parameters.
lncpl_lines:* Hoke, M.L., S.A. Clough,
W.J. Lafferty, and B.W. Olson. Line coupling in
lncpl_lines:* oxygen and carbon dioxide.
In J. Lenoble and J.F. Geleyn, editors, IRS 88:
lncpl_lines:* Current Problems in Atmospheric
Radiation, 368-371. A. Deepak Hampton, VA,
lncpl_lines:* 1989.
lncpl_lines:*
lncpl_lines:* Includes first order Q-branch line coupling parameters
at
lncpl_lines:* 1932, 2076, 2093, 2193 cm-1.
lncpl_lines:* Strow, L.L, D.C. Tobin,
and S.E. Hannon. A compilation of first-order line
lncpl_lines:* mixing coefficients for
CO2 Q-branches. J. Quant. Spectrosc. Radiat.
lncpl_lines:* Transfer, 52, 281-294,
1994.
For a detail description of the file contents refer to the header on
the top of the files.
The line list covers the full HITRAN spectral region and is provided
both as one total line list (line_file/*) and as seperate
individual
line lists for each molecule (line_files_By_Molecule/*)
TES: tes_v_1.3
Date: May 2006
The CO2 line parameters were modified from the hitran2000 base on reducing
the residuals between the forward model and observations. For further
information see the header comments at the top of the line files
In addition to the Q-branch line coupling previously provide, new line
coupling parameters are provided for the CO2 P and R branches (Niro et
al., 2005): 618 CM-1, 667 CM-1 720 CM-1, 740 cm-1
F. Niro, K. Jucks, J.-M. Hartmann, Spectra
calculations in central and wing regions of CO2 IR bands. IV : Software
and database for the computation of atmospheric spectra, in J Quant Spectrosc
Radiat Transfer. Vol. 95, 2005, pp. 469-481
TES: tes_v_1.2
Date: October 2004
The only change from tes_v_1.1 is the inclusion of hitran2004 HNO3 lines.
Since all the other molecules in the TES linefile are presently in hitran2000
f100 format, instead of the new f160 format of hitran2004, we used LNFL
to convert the HNO3 file from F160 back to F100 format for this update.
AER: aer_v_1.0
Date: May 2004
This AER version is built from HITRAN2000
with the updates from 2001available as of 08/2003 (last update 09/2001).
The line file also includes additional updates to CH4, CO, 03,
and HCOOH, which are being considered to be included in HITRAN updates
in the near future:
CH4 (Linda Brown, JPL) : Provided to HITRAN and MIPAS (corrected
section from 922.65 to 1678.33 cm-1)
CO (Linda Brown, JPL) : Provided to HITRAN (widths (self-
and air-), temperature dependence and air- shifts)
03 (Wagner et al. 2002, JGR, 107, D22, 2002) : Provided
to HITRAN
HOOCH (Perrin A, Rinsland CP, Goldman A., JGR, 104, 18661-66,
1999) : Provided to HITRAN
O2 Oxygen-17 band line parameters from Camy-Peyret (IRS,
2000) for isotopes other than the main isotope
The line list covers the full HITRAN spectral region and is provided
both as one total line list (line_file/aer_v_1.0) and as seperate
individual
line lists for each molecule (line_files_By_Molecule/*).
TES: tes_v_1.1
Date: October 2003
In order to keep generality for cross-platform comparisons, and incorporate
recent spectroscopic line parameter improvements, the TES (tes_v_1.1)
spectroscopic line file is built from HITRAN2000
with the updates from 2001
available as of 08/2003 (last update 09/2001). The TES line file
also includes additional updates to CH4, CO, 03, and HCOOH, which are expected
to be included in HITRAN updates in the near future:
-
CH4 (Linda Brown, JPL) : Provided to HITRAN and MIPAS (corrected
section from 922.65 to 1678.33 cm-1)
-
CO (Linda Brown, JPL) : Provided to HITRAN (widths (self-
and air-), temperature dependence and air- shifts)
-
03 (Wagner et al. 2002, JGR, 107, D22, 2002) : Provided
to HITRAN
-
HOOCH (Perrin A, Rinsland CP, Goldman A., JGR, 104, 18661-66,
1999) : Provided to HITRAN
The line list covers the spectral region from (500-3500 cm-1) and is provided
both as one total line list (line_file/tes_v_1.1) and as seperate
individual line lists for each molecule (line_files_By_Molecule/*).
In additon, three individual H2O line files have been provided (i.e
for HDO retrievals) :
-
all water lines (line_files_By_Molecule/01_H2O/01_H2O)
-
all water lines without deuterium (line_files_By_Molecule/01_H2O/01_h2o_no_deuterium)
-
deuterium only lines (line_files_By_Molecule/01_H2O/01_h2o_deuterium_only)
Note: the strengths for lines with a deuterium atom were scaled by the
deuterium abundance
A file containing line-coupled lines for the (500-3500cm-1) spectral
region is also provided (line_file/tes_v_1.1_lncpl_lines).
AER: aer_hitran_2000_updat_01.1
Date: February 2002
The line parameter database designated aer_hitran_2000_updat_01.1 contains
the following base set of line parameters and associated updates:
-
oxygen update 1/2001
-
methane update 2/2001
-
water update 4/2001
-
updat_01.1 denotes an update in which the Oxygen-17 band isotopic line
parameters have been changed to those reported by Camy-Peyret (IRS, 2000).
Atmospheric and Environmental Research