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Validation of a new HNO3 line parameters at 7.6um using laboratory intensity measurements and MIPAS satellite spectra
No full textDIPOLE MOMENT EXPANSION OF WATER
No full textC. Camy-Peyret and J. -M. Flaud, Mol, Phys. \emph{32}, 523 (1976). J. -M. Flaud and C. Camy-Peyret, J. Mol. Spectrosc. 51, 142 (1974). J. -M. Flaud, C. Camy-Peyret, J. -Y. Mandin and G. Guelachvili, Mol. Phys. \emph{34}, 413 (1977); C. Camy-Peyret, J. -M. Flaud and R. A. Toth, J. Mol. Spectrosc. \emph{67}, 117 (1977).""Author Institution: Laboratoire de Physique, Mol\'eculaire et d'Optique AtmospheriqueWe show how we have been able to determine from experimental measurements of vibration-rotation line intensities, some coefficients appearing in the expansion of the dipole moment with respect to normal coordinates. In particular, the combined study of ``cold” and ``hot” bands allows to resolve the ambiguity of signs always present in such problems. From the study of the and bands, we have obtained: \begin{eqnarray*} \begin{array}{rlllll} ^{2}\mu_{x}&=& 0.1794_{6}& \pm &0.0020D&(a)\\ ^{1}\mu_{x}&=&-0.0217_{0}& \pm &0.0010 D&(b)\\ ^{3}\mu_{z}&=& 0.0971_{4} &\pm& 0.0018 D&(b)\\ ^{22}\mu_{x}&=& 0.013 &\pm& 0.002 D&(b)\\ ^{12}\mu_{x}&=&(-0.843& \pm& 0.18)\times 10^{-1} &D\; (c)\\ ^{23}\mu_{z}&=& (0.267& \pm& 0.010)\times10^{-1}& D\; (c) \end{array} \end{eqnarray*
Phosgene in the UTLS: vertical distribution from MIPAS observations using new spectroscopic data
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Tropospheric Ozone Monitoring with IASI/MetOP Using a Self-Adapting Regularization Method
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MIPAS database: New HNO3 line parameters at 7.6 μm validated with MIPAS satellite measurements
Get PDFImproved line positions and intensities have been generated for the 7.6 m spectral region of nitric acid. They were obtained relying on a recent reinvestigation of the nitric acid band system at 7.6 m and comparisons of HNO3 volume mixing ratio profiles retrieved from the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) limb emission radiances in the 11 and 7.6 m domains. This has led to an improved database called MIPAS-2015. Comparisons with available laboratory information (individual line intensities, integrated absorption cross sections, and absorption cross sections) show that MIPAS-2015 provides an improved description of the 7.6 m region of nitric acid. This study should help to improve HNO3 satellite retrievals by allowing measurements to be performed simultaneously in the 11 and 7.6 m micro-windows. In particular, it should be useful to analyze existing MIPAS and IASI spectra as well as spectra to be recorded by the forthcoming Infrared Atmospheric Sounding Interferometer-New Generation (IASI-NG) instrument.SCOPUS: ar.jinfo:eu-repo/semantics/publishe
Tropospheric Ozone Measurements with IASI/MetOp-A: Improvement of the Retrieval for the Lower Troposphere and Validation
No full textRetrieval of atmospheric H15NO3/H14NO3 isotope ratio profile from MIPAS/ENVISAT limb-scanning measurements.
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