HCl, CO, and NO vertical profiles from the Grille spectrometer on ATLAS-1

Veronique Achard; Claude Camy-Peyret; Martine M. De Maziere

doi:10.1117/12.228542

15 December 1995 HCl, CO, and NO vertical profiles from the Grille spectrometer on ATLAS-1

Veronique Achard, Claude Camy-Peyret, Martine M. De Maziere

Proceedings Volume 2582, Atmospheric Sensing and Modeling II; (1995) https://doi.org/10.1117/12.228542
Event: Satellite Remote Sensing II, 1995, Paris, France

Abstract

Vertical concentration profiles of three trace species, HCl, CO, and NO, in the middle atmosphere have been retrieved from solar occultation infrared spectra recorded by the Grille spectrometer during the ATLAS-1 mission with a spectral resolution of about 0.1 cm^-1. HCl and NO profiles are compared with ATMOS interferometer measurements obtained during the ATLAS-1 mission, and with HALOE (Halogen Occultation Experiment on the Upper Atmosphere Research Satellite) measurements performed over the same period (24 March - 1 April 1992) and latitude range. A large increase in HCl abundance is estimated by comparison of HCl profiles produced by the Grille spectrometer with profiles obtained from the ATMOS interferometer during the 1985 Spacelab-3 mission. The estimated increase rate is in accordance with the rate deduced from ATMOS measurements performed in 1992 during the same mission ATLAS-1, and with model predictions. NO mixing ratios are in general agrement with HALOE and ATMOS profiles and reported measurements from other instruments. CO profiles extend up to 100-110 km and show a large vertical gradient in CO volume mixing ratio in the mesosphere and the lower part of the thermosphere, as expected by chemical models and observed by various instruments.

Citation Download Citation

Veronique Achard, Claude Camy-Peyret, and Martine M. De Maziere "HCl, CO, and NO vertical profiles from the Grille spectrometer on ATLAS-1", Proc. SPIE 2582, Atmospheric Sensing and Modeling II, (15 December 1995); https://doi.org/10.1117/12.228542

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