Non-LTE studies for the analysis of MIPAS/ENVISAT data

M. López-Puertas, B. Funke, M. Á López-Valverde, Javier Martin-Torres, T. Von Clarmann, G. Stiller, H. Oelhaf, H. Fischer, J. M. Flaud

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Abstract

The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) is a high-resolution limb sounder on board the European polar platform ENVISAT, scheduled for launch late in 2001. Three main characteristics converge in MIPAS which make it a very useful instrument for non-LTE studies: its wide spectral coverage (4.15-14.6 μm or 680-2275 cm-1); high spectral resolution (0.03 cm-1), and high sensitivity; all of this in addition to its global spatial coverage. In this paper we present an overview of the non-LTE studies that have been carried out in preparation for the analysis of MIPAS data, including the evaluation of non-LTE effects in the operational processing, focussed in the stratosphere, and the retrieval of species that normally emit under non-LTE conditions. The current mission plan for measuring the non-LTE upper atmosphere is described, as well as the general purpose non-LTE retrieval scheme developed for analyzing those measurements.
Original languageEnglish
Pages (from-to)381-395
Number of pages15
JournalProceedings of SPIE, the International Society for Optical Engineering
Volume4539
DOIs
Publication statusPublished - 31 Jan 2002

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Keywords

  • Atmospheric composition
  • Infrared emissions
  • Non-LTE
  • Remote sounding
  • Retrieval algorithms
  • Aerospace Engineering
  • Rymd- och flygteknik

Cite this

López-Puertas, M., Funke, B., López-Valverde, M. Á., Martin-Torres, J., Clarmann, T. V., Stiller, G., Oelhaf, H., Fischer, H., & Flaud, J. M. (2002). Non-LTE studies for the analysis of MIPAS/ENVISAT data. Proceedings of SPIE, the International Society for Optical Engineering, 4539, 381-395. https://doi.org/10.1117/12.454458