dc.creator May, R. D. en_US dc.creator Webster, C. R. en_US dc.date.accessioned 2006-06-15T18:23:43Z dc.date.available 2006-06-15T18:23:43Z dc.date.issued 1989 en_US dc.identifier 1989-TE-14 en_US dc.identifier.uri http://hdl.handle.net/1811/17971 dc.description Author Institution: Jet Propulsion Laboratory, California Institute of Technology en_US dc.description.abstract A computer-controlled tunable diode laser spectrometer has been used to measure linestrengths, line positions, and air-broadening coefficients in selected regions of the $HNO_{3} 7.5 \mu m$ band at 295 K and at 213 K. This spectral region is useful for atmospheric monitoring of $HNO_{3}$. which is receiving increased attention due to the crucial role played by nitric acid in ozone depletion mechanisms active both in the north and south polar regions. Extraction of chlorine nitrate ($CIONO_{2}$) concentrations from atmospheric spectra using the strong Q-branch at $1292 cm^{-1}$ also relies on accurate line parameters for the overlapping $HNO_{3}$ subbands. The measurements reported here should result in improved [$HNO_{3}$] and [$CIONO_{2}$] retrievals from observed atmospheric spectra, and aid in the development of a better theoretical description of the interacting $\nu_{3}$ and $\nu_{4}$ bands. en_US dc.format.extent 46539 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title Low-Temperature Tunable Diode Laser Measurements of Line Positions, Intensities, and Air-Broadening Coefficients in the $HNO_{3} 7.5 \mu m$ Band. en_US dc.type article en_US
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