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dc.creatorMay, R. D.en_US
dc.creatorWebster, C. R.en_US
dc.descriptionAuthor Institution: Jet Propulsion Laboratory, California Institute of Technologyen_US
dc.description.abstractA 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.extent46539 bytes
dc.publisherOhio State Universityen_US
dc.titleLow-Temperature Tunable Diode Laser Measurements of Line Positions, Intensities, and Air-Broadening Coefficients in the $HNO_{3} 7.5 \mu m$ Band.en_US

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