Line Parameter Database

Date: November 2007

AER: aer_v_2.1
 

  • 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


    • Date: November 2007

    TES: tes_v_1.4
     

  • 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


    Date: July 2007

    AER: aer_v_2.0
     

  • 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/*).


    Date: June 2007

    AER: aer_v_1.1
     

  • 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/*)

    Date: May 2006

    TES: tes_v_1.3
     

  • 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


    Date: October 2004

    TES: tes_v_1.2
     

  • 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.

    •  

     

    Date: May 2004

    AER: aer_v_1.0

    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/*).

    Date: October 2003

    TES: tes_v_1.1

    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:
     

    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) :

    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).

    Date: February 2002

    AER: aer_hitran_2000_updat_01.1

    The line parameter database designated aer_hitran_2000_updat_01.1 contains the following base set of line parameters and associated updates:

    Atmospheric and Environmental Research Inc. (AER)