Ethane PSEUDO-LINELIST

There are two C2H6 pseudo linelists:
c2h6_1350_1496.101
c2h6_2720_3100.101

This Readme deals with the latter only

INTRODUCTION.
This document gives information on a C2H6 pseudo-linelist
derived at JPL in 2009. The linelist was based on 26 spectra
measured by Harrison, Allen, and Bernath at RAL in 2008/9.
These results are now published as:

Jeremy J. Harrison, Nicholas D. C. Allen, and Peter F. Bernath, 
Infrared absorption cross-sections for ethane (C2H6) in the 3 um region, JQSRT, 111, 357–363, 2010

The measurement conditions for these spectra are tabulated below.

      Spectrum          start   end    Npts   Temp    P_tot    p_pres     l_cell   OPD 
"C2H6_PURE_295K.0"       3315  2545  2453181  295.0    0.1124   0.1105    0.00026 225.0
"C2H6_PURE_270K.0"       3315  2545  2453181  270.0    0.1002   0.0996    0.00026 225.0
"C2H6_PURE_250K.0"       3315  2545  2453181  250.0    0.0901   0.0896    0.00026 225.0
"C2H6_PURE_215K.0"       3315  2545  2453181  215.0    0.0765   0.0763    0.00026 225.0
"C2H6_PURE_197K.0"       3315  2545  2453181  197.0    0.0689   0.0682    0.00026 225.0
"Ethane_300K.0000"       3310  2950   605332  293.0    0.5000   0.4058    0.00026 225.0
"Ethane_270K.0000"       3310  2950   605332  270.0    0.5000   0.4672    0.00026 225.0
"Ethane_250K.0000"       3310  2950   605332  252.0    0.5000   0.4367    0.00026 225.0
"Ethane_215K.0000"       3310  2950   605332  217.0    0.3824   0.3326    0.00026 225.0
"Ethane_195K.0000"       3310  2950   605332  195.0    0.2534   0.1954    0.00026 225.0
"C2H6_297K_763.48Torr.0" 3315  2545   613296  297.0  763.4800   0.3058    0.00026  60.0
"C2H6_296K_371.71Torr.0" 3315  2545   613296  296.0  371.7100   0.3066    0.00026  60.0
"C2H6_270K_601.36Torr.0" 3315  2545   613296  270.0  601.3600   0.3024    0.00026  60.0
"C2H6_270K_376.54Torr.0" 3315  2545   613296  270.0  376.5400   0.3029    0.00026  60.0
"C2H6_250K_626.45Torr.0" 3315  2545   613296  250.0  626.4500   0.2974    0.00026  60.0
"C2H6_250K_400.68Torr.0" 3315  2545   613296  250.0  400.6800   0.2896    0.00026  60.0
"C2H6_250K_200.10Torr.0" 3315  2545   613296  250.0  200.1000   0.3066    0.00026  60.0
"C2H6_215K_281.11Torr.0" 3315  2545   613296  215.0  281.1100   0.2375    0.00026  60.0
"C2H6_215K_206.91Torr.0" 3315  2545   613296  215.0  206.9100   0.4030    0.00026  60.0
"C2H6_215K_119.15Torr.0" 3315  2545   613296  215.0  119.1500   0.2389    0.00026  60.0
"C2H6_215K_049.44Torr.0" 3315  2545   613296  215.0   49.4400   0.2372    0.00026  60.0
"C2H6_194K_103.86Torr.0" 3315  2545   613296  194.0  103.8600   0.2208    0.00026  60.0
"C2H6_195K_076.35Torr.0" 3315  2545   613296  195.0   76.3500   0.2220    0.00026  60.0
"C2H6_195K_052.13Torr.0" 3315  2545   613296  195.0   52.1300   0.2208    0.00026  60.0

Temp - Temperature in K
P_tot - total pressure in torr
P_pres - C2H6 partial pressure in torr
l_cell - cell length in m
OPD  - Optical Path Difference (cm)


DESCRIPTION.
The laboratory transmittance spectra were simultaneously
fitted (using the GFIT algorithm) by iteratively adjusting
the strengths and ground-state energies of the pseudo-lines.

Due to the high resolution of the RAL spectra, and the fact that
C2H6 has a descrete spectrum, a non-uniform spectral line spacing
was adopted.
An E"-dependent air broadened halfwidth was used.

A more complete description of this pseudo-linelist can be found at
http://mark4sun.jpl.nasa.gov/report/c2h6_spectroscopy_evaluation_2850_3050.pdf
	

ACKNOWLEDGMENTS.
I thank Jeremy Harrison and Peter Bernath for providing the C2H6
spectra prior to their publication and inclusion into HITRAN.