Document Detail


Retrieval of trace gases from aerosol-influenced infrared transmission spectra observed by low-spectral-resolution Fourier-transform spectrometers.
MedLine Citation:
PMID:  15717835     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
A method for the simultaneous retrieval of gas concentrations and an extinction spectrum of aerosols and polar stratospheric clouds from infrared transmission spectra observed in the solar occultation geometry is described. It is particularly suited to measurements by Fourier-transform spectrometers with relatively low spectral resolution (0.1-1 cm(-1)). The method does not require a priori assumptions on aerosol properties; it utilizes only the fact that the wave-number dependence of aerosol extinction is much weaker than that of gas absorption. In this method, an aerosol extinction spectrum is approximated by a straight line within a relatively wide spectral range defined as mediumwindow.
Authors:
Nobuyuki Uemura; Satoshi Kuriki; Koji Nobuta; Tatsuya Yokota; Hideaki Nakajima; Takafumi Sugita; Yasuhiro Sasano
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  44     ISSN:  0003-6935     ISO Abbreviation:  Appl Opt     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2005-02-18     Completed Date:  2005-03-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  455-66     Citation Subset:  -    
Affiliation:
Environmental Systems Department, Fujitsu FIP Corporation, 2-45 Aomi, Koto-ku, Tokyo 135-8686, Japan. uemura@ilas2.nies.go.jp
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