LNFL_v3.2

• Changes were made to handle O₂ lines (Schumann-Runge) that are broadened by predissociation (M. Iacono)

LNFL_v3.1

• Added capability to read in the temperature dependence of the self widths and the self pressure shift for O2.

LNFL_v3.0.1

• LNFL v3.0.1 only includes a bug fix to LNFL_v3.0, where the number of lines allowed in the extra broadening parameter files has been increased from the previous limit of 135,000.

LNFL_v3.0

• LNFL_v3.0 is an update to MonoLNFL_v1.0, a line file code that was released with MonoRTM_v5.0 (see below for a description); it includes the capability to handle all the transitions in the HITRAN 2012 line file, as well as the extra broadening and speed dependent parameters that were included in MonoLNFL_v1.0.
• LNFL_v3.0 should only be used for:
  • LBLRTM_v12.4 or later versions
  • MonoRTM_v5.0 or later versions
• Note that LBLRTM does NOT calculate speed dependent line shapes.
• LNFL_v3.0 has been updated to handle all 47 molecules in the HITRAN 2012 line list, all of their isotopologues, and all of their vibrational states. MonoLNFL_v1.0 and LNFL_v2.6 will not pass many of these lines through to the TAPE3, so only LNFL_v3.0 should be used with HITRAN 2012.
• LNFL_v3.0 now allows the TAPE1 file to be specified at the command line when the lnfl executable is called. See 'run_examples/run_example_infrared/run_lnfl' to see how the new functionality works.

MonoLNFL_v1.0

• MonoLNFL is an update to LNFL_v2.6 made to include extra broadening and speed-dependent line parameters in the TAPE3 for use in MonoRTM v5.0 and later. LBLRTM v12.2 and earlier versions do not have the capability to use these parameters, so MonoLNFL should ONLY be used for MonoRTM v5.0 and later versions.
• MonoLNFL_v1.0 now has the capability to read the following files containing extra broadening and speed-dependent line parameters (D. Weisenstein, K. Cady-Pereira, M. Alvarado):
  • co2_co2_brd_param -> CO2 self broadening parameters based on Lamouroux et al. (2012).
  • o2_h2o_brd_param -> O2 transitions broadened by H2O based on Drouin et al. (2013).
  • co2_h2o_brd_param -> CO2 transitions broadened by H2O based on Sung (2009).
  • wv_co2_brd_param -> H2O transitions broadened by CO2 based on Brown et al. (2007).
  • spd_dep_param -> Speed-dependent Voigt parameters for CO2 transitions in the bands 68<-1 and 71<-1 (i.e., 30012<-00001 and 30013<-00001) following Devi et al. (2007a,b).
• These parameters in these files are consistent with the line file aer_v3.4.

LNFL_v2.6

• Fixed minor issues associated with reading F160 line files and handling of default line rejection with coupled lines.
• Simplified makefile system in the build directory; includes new platforms such as Windows and capability to easily add new platforms.
• Updated lnfl_instructions.
  

LNFL_v2.5

• Extended the molecule range in LNFL to include Methanol (CH3OH); HITRAN molecule number 39.

LNFL_v2.4

• Same as LNFL_v2.3 with an improved directory structure to be more consistent with standard release packages.  For example: The program is now compiled in a "build" directory instead of the top level; the executable file still get placed in the top level directory.

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LNFL_v2.3

• The major change in this version is that the internally stored  line coupling information for oxygen and carbon dioxide is no longer written to TAPE2 for susequent merging with TAPE1.
• Line coupling information must be supplied explicitly by the user, either on TAPE2 or TAPE1.
• The meaning of the NOCPL option has been changed such that, if it is invoked, all line coupling information from TAPE1 or TAPE2 will be suppressed on the output files, TAPE3 (unformatted)  and TAPE7 (formatted).
• Some modifiations to the coding have been made for simplification.
• Upgraded makefiles and corresponding utilities to include more compilers.

LNFL_v2.1

•  In the Vib.dat file available for HITRAN2004 no entry exists for the  vibrational state ' 2 3 0' for vibrational class 6.  However, there is a deuterated water vapor line in HITRAN 2004 at 12657.367357 cm-1 with upper state quantum numbers 2 3 0. As an interim measure to address this problem '2 3 0' has been added to the vibrational table for vibrational class 6, h_vib(6,116), and n_lnvl_v(6) has been increased from 115 to 116.  (S. A. Clough)

LNFL_v2.0

• This is the first release of LNFL that accommodates the 160 character format adopted for HITRAN_2004. To facilitate this format change, some of the LNFL flags formerly on Record 3 have now been distributed to Records 3 and 4. On Record 3, the flags include those that are general for the LNFL run and also those that are specific to TAPE1. On Record 4, the flags include those specific to TAPE2. The default format for LNFL will remain the 100 character format. The rationale for this choice is that the vibrational data are more amenable to the LBLRTM Non-LTE calculation than those associated with the 160 character format for which the vibrational information had been expanded to facilitate association of the lines with the quantum mechanical vibrational designations.
• Note that no blocking for TAPE1 and TAPE2 is now the default, so that flags NBLK1 and NBLK2 are now ignored and are not necessary. They have been replaced with flags BLK1 and BLK2 to indicate the respective files in blocked format.
• A module including for line coupling coefficients is included for use with HITRAN2004. The carnbon dioxide frequencies have been changed in this module to be consistent with HITRAN2004 but no other parameters have been modified. In particular, the required constraints on the line coupled bands have NOT been checked.
• In this release, the capability to accomodate the 160 character format is restricted to TAPE1.

HITRAN2004 reference: Rothman, L.S., D. Jacquemart, A. Barbe, D.C. Benner, M. Birk, L.R. Brown, M.R. Carleer, C. Chackerian, Jr, K. Chance, V. Dana, V.M. Devi, J.-M. Flaud, R.R. Gamache, A. Goldman J.-M. Hartmann, K.W. Jucks, A.G. Maki, J.Y. Mandin, S. Massie, J. Orphal, A. Perrin, C.P. Rinsland, M.A.H. Smith, R.A. Toth, J. Vander Auwera, P. Varanasi, G. Wagner, The HITRAN 2004 Molecular Spectroscopic Database, J. Quant. Spectrosc. Radiat .Transfer, in press, 2005. . (S.A. Clough)

LNFL_v1.15

• Added a makefile and utility in order to run LNFL on LINUX INTEL.  (M.W. Shephard and H. Nair)

LNFL_v1.14

• The first order line coupling coefficients for oxygen have been scaled by a factor of 0.87.  The second order line coupling coefficients for  oxygen have been set to zero.  This is based on the analysis of Cimini et al. using the scanning MWR data from ARM SGP.   (K. Cady-Pereira and S.A. Clough)
• Modified the first isotope from 0 to 1 and the E" to -1. for the first coupled oxygen line in LNFL (M.W. Shephard).
• Modified LNFL to read over any header information at the top of the input spectroscopic line list.  (S.A. Clough)
• For H2O the lower state energies with value of  -1. have been replaced  with a value of -300. cm-1 outside of LNFL in the linefile (the negative value of the lower state energy indicates that the value is not known).  This value is modified in the line file to achieve a more probable temperature correction.  LNFL has been changed so that it DOES NOT change this E" value and passes the -300 directly to LBLRTM. (S.A. Clough and M.W. Shephard)
• Expanded maximum molecule number up to 38 molecules.   (S.A. Clough)
• Made changes to program to be consistent with TIPS 2002 inplemented in LBLRTM. (S.A. Clough)

LNFL_v1.8

• There was code implemented to report and skip ver spectral lines that cannot be handled properly by TIPS in LBLRTM. (H. Snell and S.A. Clough)

LNFL_v1.7.1

• The revision number in the TAPE6 output comments was updated. (M.W.Shephard)
• To reflect the increase portability of LBLRTM, makefiles and utilities are provided to run LNFL on the followingplatforms:



System	Mfr.	Compiler	sgl
IRIX	SGI		f90
SOLARIS	SUN		f90,f77
AIX	IBM		f90
LINUX	----	PGI	f90
OS X	Apple	Absoft	f90
		g77 (gnu)	g77

  (S.A. Clough, M.W. Shephard, P. VanDelst, A. Goldman)

LNFL_v1.6

• Line coupling parameters for the CO2 Q branches in the nu2 region (600-800 cm-1) have been updated to be consistent with the HITRAN_96 line parameters.  [Includes first and second order coupling parameters (Hoke, et al., 1989)]
• Line coupling parameters for the CO2 have been included (following Strow et al, 1994) at 1932, 2076, 2093, 2193 cm-1. [First order coupling only]
• Capability to have molecule numbers large than 36 in the linefile.


Hoke, .L., S.A. Clough, W.J. Lafferty, and B.W. Olson. Line coupling in oxygen and carbon dioxide. In J. Lenoble and J.F. Geleyn, editors, IRS 88: Current Problems in Atmospheric Radiation, 368-371. A. Deepak Hampton, VA, 1989.
Strow, L.L, D.C. Tobin, and S.E. Hannon. A compilation of first-order line mixing coefficients for CO₂ Q-branches. J. Quant. Spectrosc. Radiat. Transfer, 52, 281-294, 1994.

Atmospheric and Environmental Research