December, 2012
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Update for HITRAN References
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The sources for the 6 major parameters in the HITRAN database, as
well as for the cross-sections data, are contained in a pdf file.
This file is updated each time new or modified data are added to the
compilation.
The reference document can be downloaded here (
HITRAN References
)
or
from the HITRAN ftp site.
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December, 2012
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Update for HF, HCl, HBr, HI
(Hydrogen Halides)
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A comprehensive update of the hydrogen halide (HF (14),
HCl (15), HBr (16), HI (17)) line parameters has been performed.
The update also includes adding the deuterated isotopologues of the
hydrogen halides for the first time.
Note that the Dicke narrowing parameter has been
introduced for some lines (the Galatry profile is assumed). We have
provided two auxilliary files here that contain these parameters.
The files are for HF and HCl; they are in the form of columnar
tables with a repetition of the molecule number, isotopologue
number, and unique quantum identification of each corresponding
transition. The values given are the standard Lorentz half width
followed by the narrowing parameter when available.
Details of the updates can be found in the
linked pdf file
 Hydrogen-Halides Update
The new data can be downloaded here either in ASCII:
14_hit12.par
14_hit12_Galatry.txt
15_hit12.par
15_hit12_Galatry.txt
16_hit12.par
17_hit12.par
or compressed format:
14_hit12.zip
14_hit12_Galatry.zip
15_hit12.zip
15_hit12_Galatry.zip
16_hit12.zip
17_hit12.zip
The “.par” files should be used as a complete replacement of the 2008
hydrogen-halide linelist.
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September, 2012
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Update for ClO (Chlorine monoxide)
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The intensities of the fundamental band of chlorine
monoxide (ClO) have been updated, based on the work of M. Birk and
G. Wagner, “Experimental line strengths of the ClO
fundamental,” J. Geophys. Res. 102, 19199-206
(1997). Basically, the total band intensity has decreased and there
is a more refined expression for the vibration-rotation interaction.
In addition, the air-broadened half widths and their
temperature dependence in the fundamental band were changed using
the same method that was applied in HITRAN2008 to the pure
rotational band. A rough estimate for the self-broadening half
width (0.1 cm-1/atm) was assigned to all ClO lines in the
database.
The new data can be downloaded here either in ASCII:
18_hit12.par
or compressed format:
18_hit12.zip
These files should be used as a complete replacement of the 2008
chlorine monoxide linelist.
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August, 2012
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New molecule for HITRAN:
HC3N (Cyanoacetylene)
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Cyanoacetylene (HC3N) is a new addition to the HITRAN
database. The line list contains bands in the microwave region with
transitions with Δv = 0 in the ground, v6 = 1,
and v7 = 1 states. The spectral regions of
the v5 (460 - 550 cm-1)
and v6 (620 - 750 cm-1) fundamental bands
are also included. In addition, the line list contains some of the
hot bands.
A brief description of the sources of the data and nuances of the formatting can be found in the linked document here
HC3N sources
The new data can be downloaded here either in ASCII:
44_hit12.par
or compressed format:
44_hit12.zip
It should be noted that the molecule number designation for this new addition to HITRAN is 44.
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May, 2012
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New Indices of Refraction of organic acids
related to tropospheric aerosols
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Twenty-one new files of aerosol data are now available in
the HITRAN compilation. These files include the real and imaginary
parts of the complex indices of oxalic, malonic, succinic, glutaric,
pyruvic, benzoic, pinonic, and phthalic acid at various concentrations
are tabulated for 276 to 1100 nm. Non-organic water and ammonium
sulfate indices are also included in the measurement set for
laboratory inter-comparison purposes.
The source of these data is C.E. Lund Myhre and
C.J. Nielsen, “Optical properties in the UV and visible spectral
region of organic acids relevant to tropospheric aerosols,”
Atmospheric Chemistry & Physics 4, 1759-1769 (2004).
The new data can be downloaded here in compressed format:
organic_aerosols.zip
A small Readme file describing the 21 data tables is available here:
new aerosol description
Note that, in addition to the aerosol indices of refraction that
have been previously archived in the HITRAN compilation under the
folder Aerosols, there was an update in 2009 that
includes:
(1) real and imaginary indices of supercooled water at 238, 252,
258, and 269 K from 1101 to 4503 cm-1 (R. Wagner, et al,
“Mid-Infrared Extinction Spectra and Optical Constants of
Supercooled Water Droplets,” J.Phys.Chem. 109,
7099-7112 (2005));
(2) Real and imaginary indices of
H2SO4/H2O droplets at 0.81, 0.81,
0.81, 0.76, 0.76 weight percent H2SO4 at 298,
273, 267, 298, 273 K from 1.3 to 25 µm (C.E. Lund Myhre, et
al, “Spectroscopic Study of Aqueous
H2SO4 at Different Temperatures and
Compositions: Variations in Dissociation and Optical
Properties,” J.Phys.Chem. 107, 1979-1991 (2005));
(3) Real and imaginary indices of binary
HNO3/H2O at 223, 233, 243, 253, 273 and 293 K
from 450 to 6500 cm-1 30% HNO3, 70% H2O from 1.5 to 22
µm (C.E. Lund Myhre, et al, “Optical Constants of
HNO3/H2O and
H2SO4/HNO3/H2O at Low
Temperatures in the Infrared
Region,” J.Phys.Chem. 109, 7166-7171 (2005));
and
(4) Real and imaginary indices of ternary droplets at 203, 213, 223,
253, 273 and 293 K from 450 to 6500 cm-1 23%
HNO3, 21% H2SO4, 56% H2O
from 1.5 to 22 µ:m (C.E. Lund Myhre, et al, “Optical
Constants of HNO3/H2O and
H2SO4/HNO3/H2O at Low
Temperatures in the Infrared
Region,” J.Phys.Chem. 109, 7166-7171 (2005)).
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February, 2012
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New IR Cross-sections
for BrONO2 (bromine nitrate)
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IR absorption cross sections for BrONO2 are now
introduced into HITRAN. The cross-sections are given at 218K and
296K. The latter set is based on laboratory measurements, whereas
the set for 218K was obtained by scaling the 296 K experimental
data. The values are explained in more detail in the paper about
the atmospheric detection of BrONO2 by the MIPAS
instrument (M. Höpfner, J. Orphal, T. von Clarmann, G. Stiller,
and H. Fischer, “Stratospheric BrONO2 observed by
MIPAS,” Atmospheric Chemistry & Physics 9,
1735-1746 (2009)).
The new data can be downloaded here either in ASCII:
BrONO2_IR12.xsc
or compressed format:
BrONO2_IR12.zip
The original data files can be downloaded in compressed format:
BrONO2_IR12_alt.zip
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February, 2012
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Update for Ozone
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The major advance in this new update is the inclusion of:
- 10947 transitions of 22 new bands between 5815 and 7000 cm-1.
Note that ozone lines in HITRAN2008 did not extend beyond 5787 cm-1.
- 1234 lines of two bands ( 114-000 and 105I-000 ) between 5440 and 5790 cm-1.
These updates became possible due to work of researchers at the University of Grenoble,
the University of Reims, and the Institute of Atmospheric Optics in Tomsk.
It was also discovered that in HITRAN2008 a few lines that shared exactly
the same wavenumber values had their intensities mistakenly interchanged.
This error has now been fixed. We thank Geoff Toon (JPL) for pointing
this out.
The new data can be downloaded here either in ASCII:
03_hit12.par
or compressed format:
03_hit12.zip
These files should be used as a complete replacement of the 2008
ozone linelist.
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September, 2011
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Update to IR Absorption Cross-sections of PAN (peroxyacetyl nitrate)
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New IR absorption cross-sections for PAN (peroxyacetyl nitrate) have
been adapted from G. Allen, J.J. Remedios, D.A. Newnham, K.M Smith,
and P.S. Monks, “Improved mid-infrared cross-sections for peroxyacetyl
nitrate (PAN) vapour,” Atmos.Chem.Phys. 5, 47-56 (2005) and G. Allen,
J.J. Remedios, and K.M Smith, “Low temperature mid-infrared
cross-sections for peroxyacetyl nitrate (PAN) vapour,”
Atmos.Chem.Phys. 5, 3153-3158 (2005).
These data cover two ranges: 560 to 1400 cm-1 and 1600 to
2200 cm-1 for 250 and 295K, and only the first spectral
region for 273K. Note that J.J. Harrison (University of York, UK)
fixed the baseline and renormalized the cross sections in the original
references for the first spectral region; therefore the data in HITRAN
differ slightly from those in the above references.
These new data should be used to replace the current PAN
cross-sections in HITRAN2008.
The new data can be downloaded here either in ASCII:
PAN_IR11.xsc
or compressed format:
PAN_IR11.zip
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July, 2011
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New molecule for HITRAN:
CS (Carbon monosulfide)
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Carbon monosulfide is a new addition to the HITRAN database. Data for
four isotopologues are now included in the HITRAN database in the
microwave region
(12C32S, 12C33S,
12C34S, 13C32), while
infrared data is provided only for the first two isotopologues. A
brief description of the sources of the data and the procedure used in
generating a HITRAN line list can be found in the linked document here
CS creation
The new data can be downloaded here either in ASCII:
46_hit11.par
or compressed format:
46_hit11.zip
It should be noted that the molecule number designation for this new addition to HITRAN is 46.
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July, 2011
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New IR Absorption Cross-sections of CH3CN (Methylcyanide)
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Additional pressure-temperature sets of IR cross-sections of
CH3CN have been added to HITRAN. These data, in the
3-µm region, come from the recent work of N.D.C. Allen,
J.J. Harrison, and P.F. Bernath, JQSRT 112, 1961-1966
(2011).
The new data are quite substantial. They have been combined with the previous CH3CN data in HITRAN and can be downloaded here
in compressed format:
CH3CN_IR11.zip
The new experimental two-column data files can be downloaded in compressed format:
CH3CN_IR11_alt.zip
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July, 2011
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Update to IR Absorption Cross-sections of CH3CClF2 (HCFC-142b)
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New temperature-dependent absorption cross-sections of HCFC-142b have
been added to the HITRAN compilation. The data cover the 650-1500
cm-1 spectral region, and come from the work of K. Le Bris
and K. Strong, JQSRT 111, 364-371 (2010). These data
should replace the sets of HCFC-142b IR cross-sections that were
previously in HITRAN.
The new data can be downloaded here either in ASCII:
HCFC-142b_IR11.xsc
or compressed format:
HCFC-142b_IR11.zip
The original experimental data files can be downloaded in compressed format:
HCFC-142b_IR11_alt.zip
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July, 2011
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New program to calculate
Total Internal Partition Sums
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The FORTRAN program, TIPS, that calculates the partition sums for the
HITRAN molecules and associated isotopologues has been expanded to
take into account the new species introduced into the most recent HITRAN
database. In addition, partition sums have been calculated for some
molecules of astrophysical interest that we anticipate will be added to
the database. The program, TIPS_2011.for, can be used to rapidly
generate the partition sums at any temperature in the range 70-3000K.
More detailed information can be found in A.L. Laraia, R.R. Gamache,
J. Lamouroux, I.E. Gordon, and L.S. Rothman, Icarus 215, 391-400 (2011).
A link to the programs, TIPS_2011.zip, can be made by clicking here:
TIPS
The suite of Fortran programs and associated utilities then becomes
available upon decompression.
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July, 2011
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Correction to IR Absorption Cross-sections of CH3CCl2F (HCFC-141b)
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HITRAN infrared cross-sections for HCFC-141b originate from C.
Clerbaux, R. Colin, P.C. Simon, and C. Granier, “Infrared Cross
Sections and Global Warming Potentials of 10 Alternative
Hydrohalocarbons,” J.Geophys.Res. 98, 10491-10497
(1993). It was found recently that the set of cross-sections in the
1325-1470 cm-1 region at 270 K differed from the ones in
the original publication. The reason for this discrepancy is unclear.
The HITRAN cross-sections in this pressure-temperature set have now
been multiplied by 1.75 to bring them into consistency with the
original publication. We thank G.C. Toon for discovering this
discrepancy.
The corrected data can be downloaded here either in ASCII:
HCFC-141b_IR11.xsc
or compressed format:
HCFC-141b_IR11.zip
These files should be used as a complete replacement of the 2008
HCFC-141b IR cross-sections.
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July, 2011
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UV Absorption Cross-sections for H2CO (formaldehyde)
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A study of the previous ultraviolet absorption cross sections for
formaldehyde in HITRAN was carried out as recommended by the HITRAN
Advisory Committee. The cross sections introduced here have been
derived from two existing sets, one using a Fourier transform
spectrometer, and one using a grating instrument. The new re-scaled
data are based on the work of K. Chance and J. Orphal,
“Revised ultraviolet absorption cross sections of
H2CO for the HITRAN
database,” JQSRT 112, 1509-1510 (2011).
The new data can be downloaded here either in ASCII:
H2CO_UV11.xsc
or compressed format:
H2CO_UV11.zip
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April, 2011
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Update for C2H2 (Acetylene)
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An assortment of updates has been performed at this time for acetylene:
The vibrational assignment of the line at 735.54341 cm-1 was corrected.
Also, quantum assignments were corrected for the 23 Q-branch lines of
the 3v4+v5
– v4 band at 1950 cm-1. We thank
Geronimo Villanueva (NASA Goddard Space Flight Center) for pointing
out these errors.
The 7.7-µm region has been completely
updated based on the following papers: L. Gomez, D. Jacquemart,
N. Lacome, and J.-Y. Mandin, “Line intensities of
12C2H2 in the 7.7 µm
spectral region,” JQSRT 110, 2102-2114 (2009); and
L. Gomez, D. Jacquemart, N. Lacome, and J.-Y. Mandin, “New line
intensity measurements for 12C2H2 around 7.7 µm and
HITRAN format line list for applications,” JQSRT 111, 2256-2264 (2010).
In addition, the line positions of most of the
v1+v3 band of the principal
isotopologue were updated using the International Committee for
Weights and Measures recommended values
(http://www.bipm.org/utils/common/pdf/mep/M-e-P_C2H2_1.54.pdf) and
K. Nakagawa, M. de Labachelerie, Y. Awaji, and M. Kourogi,
“Accurate optical frequency atlas of the 1.5-µm bands of
acetylene,” J.Opt.Soc.Am. 13, 2708-2714
(1996).
Finally, the C2HD isotopologue has been introduced
into HITRAN for the first time, with microwave values originating from
the Cologne Database for Molecular Spectroscopy (CDMS) catalogue, while parameters in the 416-789
cm-1 region were taken from A. Jolly, Y. Benilan,
E. Cané, L. Fusina, F. Tamassia, A. Fayt, S. Robert, and
M. Herman, “Measured integrated band intensities and simulated
line-by-line spectra for C2HD between 25 and 2.5 µm,
and new global vibration rotation parameters for the bending
vibrations,” JQSRT 109, 2846-2856 (2008).
The new data can be downloaded here either in ASCII:
26_hit11.par
or compressed format:
26_hit11.zip
These files should be used as a complete replacement of the 2008
acetylene linelist.
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February, 2011
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Absorption Cross-sections for
CH3CHO (Acetaldehyde)
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Infrared absorption cross sections for acetaldehyde have been
introduced for the first time into HITRAN. The data cover the
3µm region and are based on the work of K.A. Tereszchuk and
P.F. Bernath, JQSRT 112, 990-993 (2011). The spectra
were taken at a number of temperatures and pressures appropriate for
atmospheric conditions. In addition to the ".xsc" file in
the HITRAN format, we provide the original files in a two-column
format (CH3CHO_IR11_alt.zip, only in compressed format). Note that
these data files are quite large.
The new data can be downloaded here either in ASCII:
CH3CHO_IR11.xsc
or compressed format:
CH3CHO_IR11.zip
The original two-column data files can be downloaded in compressed format:
CH3CHO_IR11_alt.zip
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January, 2011
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Absorption Cross-sections for
CH3COCH3
(Acetone)
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Infrared absorption cross sections for propanone (acetone) have been
introduced for the first time into HITRAN. The data cover the
3µm and mid-infrared regions and are based on the works of
J.J. Harrison et al, JQSRT 112, 53-58 (2011)
and JQSRT 112, 457-464 (2011). The spectra were taken
at a number of temperatures and pressures appropriate for atmospheric
conditions. In addition to the ".xsc" file in the HITRAN
format, we provide the original files in a two-column format
(CH3COCH3_IR11_alt.zip, only in compressed format).
The new data can be downloaded here either in ASCII:
CH3COCH3_IR11.xsc
or compressed format:
CH3COCH3_IR11.zip
The original two-column data files can be downloaded in compressed format:
CH3COCH3_IR11_alt.zip
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November, 2010
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Absorption Cross-sections for C2H6 (Ethane)
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Infrared absorption cross sections for ethane around 3 µm have
been added to the cross-section part of the HITRAN compilation. The
data are based on the work of J.J. Harrison, N.D.C. Allen, and
P.F. Bernath, “Infrared absorption cross sections for ethane
(C2H6) in the 3 µm region,”
JQSRT 111, 1282-1288 (2010). There are 14 sets of air-broadened
spectra taken at different combinations of temperatures and
pressures. In addition to the ".xsc" file in the HITRAN
format, we provide the original files in a two-column format
(C2H6_IR10_alt.zip, only in compressed format).
There are, of course, ethane line-by-line parameters as well in HITRAN.
The new cross-section data can be downloaded here either in ASCII:
C2H6_IR10.xsc
or compressed format:
C2H6_IR10.zip
The original two-column data files can be downloaded in compressed format:
C2H6_IR10_alt.zip
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November, 2010
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Absorption Cross-sections for C3H8 (Propane)
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Infrared absorption cross sections for propane have been introduced
for the first time into HITRAN. The data around 3µm are based
on J.J. Harrison and P.F. Bernath, “Infrared absorption cross
sections for propane (C3H8) in the 3 µm
region,” JQSRT 111, 1282-1288 (2010). There are 12
sets of spectra taken at different combinations of temperature and
pressure. In addition to the ".xsc" file in the HITRAN
format, we provide the original files in a two-column format
(C3H8_IR10_alt.zip, only in compressed format).
The new data can be downloaded here either in ASCII:
C3H8_IR10.xsc
or compressed format:
C3H8_IR10.zip
The original two-column data files can be downloaded in compressed format:
C3H8_IR10_alt.zip
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October, 2010
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Update for CH3Cl (Methyl chloride)
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The HITRAN2008 intensities in the 640-2600 cm-1 region that
originate from A. Nikitin, J.-P. Champion, and H. Burger, “Global
analysis of 12CH335Cl
and 12CH337Cl: simultaneous fit of
the lower five polyads (0-2600
cm-1),” J.Mol.Spectrosc. 230, 174-184 (2005)
were rescaled to match existing experimental data. In addition, the
most recent line list from the JPL catalogue was incorporated.
Finally, the representation of the rotational quanta has been changed
to accommodate not just magnitude but also the sign of
the l-quantum number, which is now given for all transitions of
CH3Cl. Note that the 3-micrometer region is still in need
of a significant update.
The new data can be downloaded here either in ASCII:
24_hit10.par
or compressed format:
24_hit10.zip
These files should be used as a complete replacement of the 2008
methyl chloride linelist.
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August, 2010
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Internet system for
working with HITRAN data
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An internet information system is under development at the V.E. Zuev
Insitute of Atmosperic Optics, Tomsk, Russia in collaboration with
the Harvard-Smithsonian Center for Astrophysics. This system allows
the user to perform numerous functions on the HITRAN database,
including:
- Survey the HITRAN database content for a specified spectral
range
- Specify a mixture of vibrational bands for a given HITRAN
isotopologue for a selected wavenumber region
- Specify a gas mixture from a set of built-in standard
atmospheric concentration profiles for a selected wavenumber region
- Visualize a stick intensity diagram of the specified mixture
- Simulate one of built-in spectral functions (absorption
coefficient profile, transmittance, absorption, or radiance) of the
mixture spectrum convolved with one of built-in apparatus functions
for various physical (temperature, pressure, pathlength) and
simulation (intensity cutoff, contour shape, wing length, resolution,
etc) conditions
- Download simulation results in text format on user's computer or send them via e-mail
- Obtain the abstracts of the original sources of HITRAN data
HITRAN on the web can be accessed at the URL:
http://hitran.iao.ru
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December, 2009
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Update for SO2 (Sulfur dioxide)
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Several bands of 34SO2 (second isotopologue by abundance
in HITRAN) have been added in the 4 and 7.2-10 µm regions based on work
published in the following papers: J.-M. Flaud, W.J. Lafferty, and R.L. Sams,
“Line Intensities for the ν1, ν3
and ν1 + ν3 bands of 34SO2”
JQSRT 110, 669-674 (2009); W.J. Lafferty, J.-M. Flaud,
R.L. Sams, E.H. Abib Ngom, “High resolution analysis of the rotational
levels of the (0 0 0), (0 1 0), (1 0 0), (0 0 1), (0 2 0), (1 1 0) and (0 1 1)
vibrational states of 34SO2,” J.Mol.Spectrosc.
252, 72-76 (2008); W.J. Lafferty, J.-M. Flaud, E.H.A. Ngom, and R.L. Sams,
“34SO2: High-resolution analysis of the (0 3 0), (1 0 1),
(1 1 1), (0 0 2) and (2 0 1) vibrational states; determination of equilibrium
rotational constants for sulfur dioxide and anharmonic vibrational constants,”
J.Mol.Spectrosc. 253, 51-54 (2009). All the previous data that
existed for 34SO2 in HITRAN2008 have been replaced.
In addition, pure-rotational transitions (with J < 100)
in the ground and v2 states of 32SO2
and in the ground state of 34SO2 were adopted from the
Cologne Database for Molecular Spectroscopy.
The new data can be downloaded here either in ASCII:
09_hit09.par
or compressed format:
09_hit09.zip
These files should be used as a complete replacement of the 2008
sulfur dioxide linelist.
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November, 2009
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Update for O2 (Oxygen)
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The band of oxygen at 1.27 µm has been updated using new
intensities calculated by Prof. A. Orr-Ewing and new line-shape
parameters that are explained in Washenfelder et al, “Carbon dioxide
column abundances at the Wisconsin Tall Tower site,”
J.Geophys.Res. 111, D22305 (2006). We thank
G.C. Toon of JPL for providing this line list. Two lines
(at 7883.626 and 7885.778 cm-1) of the
16O18O isotopologue that were
missing from previous editions of HITRAN and from the this
latter list have now been added.
In addition, the intensities of
the 1Δ(v=0) –3Σ(v=1) band were
scaled based on the recent results reported in Kassi et al, “Very
high sensitivity CW-cavity ring down spectroscopy: Application to
the a1Δg(0) –
X3Σg-(1) O2
band near 1.58 µm,” Chem.Phys.Lett. 409, 281-287 (2005).
Finally, the intensity of the line at 7.803602
cm-1 in the pure rotational band of the
isotopologue 16O18O was found to be erroneous
by about a factor of 4 (we thank S. Paine of SAO for finding this
error). The intensity of this line is now corrected adapting the
value from the JPL catalogue.
The new data can be downloaded here either in ASCII:
07_hit09.par
or compressed format:
07_hit09.zip
These files should be used as a complete replacement of the 2008
oxygen linelist.
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September, 2009
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Update for C2H6 (Ethane)
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The symmetry labeling of some of the ethane lines in the official
HITRAN2008 release were found to be erroneous. This situation has now
been fixed.
In addition, the 13C12CH6
isotopologue had not been added to the official release of HITRAN2008
despite the text in the HITRAN paper. This new isotopologue has now
been included.
The data can be downloaded here either in ASCII:
27_hit09.par
or compressed format:
27_hit09.zip
These files should be used as a complete replacement of the 2008
ethane linelist.
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July, 2009
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Update for OCS (Carbonyl sulfide)
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It was found that due to a programming error some of the air- and
self-broadening halfwidths for all isotopologues of OCS were in
error by as much as 50%. It was also found in the process that
there is a typo in the b3 coefficient for the
O2-broadening Padé approximant given in
M.A. Koshelev and M.Y. Tretyakov, “Collisional broadening and
shifting of OCS rotational spectrum lines,” JQSRT 110,
118-128 (2009). This b3 coefficient needs to be
divided by 10. These mistakes have now been fixed, yielding much
improved broadening parameters. We thank Maxim Koshelev from the
Institute of Applied Physics (Nizhny Novgorod, Russia) for pointing
out these errors.
While performing this correction, the line positions and intensities
in the pure rotational band for all of the HITRAN OCS isotopologues
were updated using parameters from the Cologne Database for
Molecular Spectroscopy (CDMS). The intensities were converted using
the procedure described in the appendix of the HITRAN2008 paper,
which includes scaling of the partition functions.
The data can be downloaded here either in ASCII:
19_hit09.par
or compressed format:
19_hit09.zip
These files should be used as a complete replacement of the 2008
carbonyl sulfide linelist.
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June, 2009
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Update for H2O (Water vapor)
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An error was discovered in the transcription of the intensities of
HDO line parameters above 11500 cm-1. They were a factor
of 10 too large in the 2008 release of HITRAN, and have now been
corrected here. Thanks to B.A. Voronin of the Institute of
Atmospheric Optics, Tomsk Russia, for pointing this error out to us.
The data can be downloaded here either in ASCII:
01_hit09.par
or compressed format:
01_hit09.zip
These files should be used as a complete replacement of the 2008
water vapor linelist.
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