J/other/JAD/18.3 Infrared extinction spectra of aerosols (Sterken+, 2012)
Infrared extinction spectra of aerosols with relevance to planetary and lunar
atmospheres.
Knox K.J., Lang E.K., Signorell R.
<J. Astron. Data, 18, 3 (2012)>
=2012JAD....18....3K 2012JAD....18....3K
ADC_Keywords: Extinction ; Spectra, infrared ; Spectroscopy
Keywords: Vibrational spectroscopy - cloud condensates - planets and satellites
Abstract:
Mid-infrared extinction spectra (500-6000cm-1) of a series of
single-component aerosol particle ensembles representative of those
found in a range of planetary and lunar atmospheres are presented. The
aerosols were generated in the laboratory via condensation from the
gas phase in a bath gas cooling cell, and the spectra recorded using a
Fourier transform infrared spectrometer. This paper is the first in a
series aimed towards building a spectral database for use in remote
sensing of aerosols. The aerosol substances included here are methane,
ethane, propane, butane, pentane, ethylene, acetylene, carbon dioxide,
ammonia and sulfur dioxide.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
species.dat 77 31 Aerosol definitions
sp/* . 31 IR extinction spectra
--------------------------------------------------------------------------------
Byte-by-byte Description of file: species.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- Species Aerosol (the corresponding spectrum is
in the "sp" subdirectory)
9- 77 A69 --- Def Definition of the aerosol
--------------------------------------------------------------------------------
Byte-by-byte Description of file: sp/*
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 F10.5 cm-1 sigma [500/6000] Wavenumber (1/λ)
13- 20 F8.5 [---] Ext Extinction (1)
--------------------------------------------------------------------------------
Note (1): Extinction is the attenuation of light by absorption and
scattering by particles and is defined, in the same way as absorbance,
as log10(Io/I), where Io is the light incident on the sample and I is
the light transmitted through the sample.
--------------------------------------------------------------------------------
Acknowledgements:
Financial support from the Natural Sciences and Engineering Research
Council of Canada (NSERC) and the Canada Foundation for Innovation is
gratefully acknowledged. K.J.K. acknowledges financial support from
the UBC Centre for Aerosol Research and a Killam Postdoctoral
Fellowship. E.K.L. acknowledges a graduate fellowship from NSERC
through the UBC CREATE-Atmospheric Aerosol Program. R.S. acknowledges
a NSERC E.W.R. Steacie Memorial Fellowship. The spectral data
collected here are the result of work by a number of researchers,
including Drs. Martin Jetzki, Marc K. Kunzmann, Thomas C. Preston,
Chia C. Wang, and Philipp Zielke and Mr. Amar F. Sigurbjornsson.
Modeling work was carried out by Drs. George Firanescu, David Luckhaus
and Thomas C. Preston. All are acknowledged for their contributions.
References:
R. Signorell and M. Jetzki, Physical Review Letters, 2007, 98, 013401
C.C. Wang, P. Zielke, A.F. Sigurbjornsson, C. . Viteri and R. Signorell,
Journal of Physical Chemistry A, 2009, 113, 11129
E.K. Lang, K.J. Knox, C.C. Wang and R. Signorell, Planetary and Space
Science, 2011, 59, 722 (2011P&SS...59..722L 2011P&SS...59..722L)
E.K. Lang, K.J. Knox and R. Signorell, 2012a, in preparation
E.K. Lang, K.J. Knox and R. Signorell, 2012b, in preparation
T. C. Preston, G. Firanescu and R. Signorell, Physical Chemistry Chemical
Physics, 2010, 12, 7924
R. Signorell, Journal of Chemical Physics, 2003, 118, 2707
R. Signorell and M. K. Kunzmann, Chemical Physics Letters, 2003, 371, 260
R. Signorell, M. Jetzki, M. Kunzmann and R. Ueberschaer, Journal of Physical
Chemistry A, 2006, 110, 2890
A.F. Sigurbjonsson, G. Firanescu and R. Signorell, Annual Review of Physical
Chemistry, 2009, 60, 127
T.C. Preston and R. Signorell, Proceedings of the National Academy of
Sciences of the United States of America, 2011, 108, 5532
M. Jetzki, A. Bonnamy and R. Signorell, Journal of Chemical Physics,
2004, 120, 11775
G. Firanescu, D. Luckhaus and R. Signorell, Journal of Chemical Physics,
2006, 125, 144501
R. Signorell and M. Jetzki, Faraday Discussions, 2008, 137, 51
(End) Kerry Knox [UBC, Canada], Patricia Vannier [CDS] 29-Feb-2012