- 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 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.
Released October 2015 with MonoRTM_v5.0.
- 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.
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.
Extended the molecule range in LNFL to include
Methanol (CH3OH); HITRAN molecule number 39.
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.
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
Upgraded makefiles and corresponding utilities to
include more compilers.
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)
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)
Added a makefile and utility in order to run LNFL
on LINUX INTEL. (M.W. Shephard and H. Nair)
The following are descriptions
of important changes contained in LNFLv1.14:
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.
Made changes to program to be consistent with TIPS
2002 inplemented in LBLRTM. (S.A. Clough)
Date: March 2003
1) 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)
Date: February 2003
There were only minor changes made to LNFL for version
1) The revision number in the TAPE6 output
comments was updated.
2) To reflect the increase portability of LBLRTM,
makefiles and utilities are provided to run LNFL on the followingplatforms:
(S.A. Clough, M.W. Shephard, P. VanDelst,
Date: February 2002
IMPORTANT CHANGES IN LNFL AND THE LINE PARAMETER DATABASE
The following are descriptions of important changes contained in LNFL:
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.
.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,
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