Atmospheric non-local thermodynamic equilibrium emissions as observed by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS)
- 1 October 2005
- journal article
- other
- Published by Cellule MathDoc/Centre Mersenne in Comptes Rendus Physique
- Vol. 6 (8), 848-863
- https://doi.org/10.1016/j.crhy.2005.07.012
Abstract
In this article we report the most recent advances of our knowledge of non-LTE atmospheric emissions gained from the MIPAS spectra on the Envisat satellite. These include improvements in our knowledge: of the collisional processes between the CO2 (1001), (0221), and (0201) vibrational levels; of the nascent distribution and collisional relaxation of the O3 vibrational states; and of the vibrational–vibrational energy transfer rates between H2O(020) and O2. In addition we report: the first evidence of mesospheric CH4 7.6-μm emission; much lower non-LTE populations of the in the daytime stratosphere than previously thought; the first experimental confirmation of the non-LTE excitation of NO(1) in the daytime stratosphere; and the first detection of the CO first hot band non-LTE emission near 4.7 μm. To cite this article: M. López-Puertas et al., C. R. Physique 6 (2005). Dans cet article nous présentons les avancées les plus récentes apportées par les spectres fournis par MIPAS sur le satelitte Envisat pour ce qui concerne les émissions de rayonnement par des molécules atmosphériques hors ETL. Il s'agit du progrès de nos connaissances des processus collisionnels entre les niveaux vibrationnels (1001), (0221), et (0201) de CO2 comme de la distribution initiale et de la relaxation des états vibrationnels de O3 et des transferts vibration-vibration d'énergie entre H2O(020) et O2. De plus, nous présentons : la première mise en évidence de l'émission mésosphérique dans la bande de CH4 vers 7.6-μm ; des populations non-ETL de observées dans la stratosphère pendant le jour beaucoup plus faibles que ce que l'on attendait ; la première confirmation expérimentale de l'excitation non-ETL du NO(1) stratosphérique pendant le jour ; et la première détection de l'émission non-ETL dans la première bande chaude de CO vers 4.7 μm. Pour citer cet article : M. López-Puertas et al., C. R. Physique 6 (2005).
Keywords
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