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Observations of the O(3P) fine structure line at 63 μm in the upper mesosphere and lower thermosphere
Climate Science Branch, NASA Langley Research Center, Hampton.
Analytical Materials and Services Corporation, Hampton.ORCID iD: 0000-0001-6479-2236
Climate Science Branch, NASA Langley Research Center, Hampton.
Climate Science Branch, NASA Langley Research Center, Hampton.
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2004 (English)In: Journal of Geophysical Research - Space Physics, ISSN 2169-9380, E-ISSN 2169-9402, Vol. 109, no A12, article id A12306Article in journal (Refereed) Published
Abstract [en]

Observations of the O(3P) fine structure line at 63 μm originating in the upper mesosphere and lower thermosphere have been obtained by the far-infrared spectrometer (FIRS-2) instrument, a Fourier transform spectrometer that flies periodically on high-altitude balloons. FIRS-2 primarily observes stratospheric ozone photochemistry using the technique of limb emission spectroscopy. As part of the routine operation of FIRS-2, up-looking views are made, during which the emission from the atomic oxygen is recorded. Using the Mass Spectrometer Incoherent Scatter (MSIS) empirical model to provide temperature and atomic oxygen concentrations, we compute radiances for comparison with the FIRS-2 observations. The computed radiances agree with the FIRS-2 measurements, which encompass 31 observations during nine flights over a span of 14 years, to within 10% on average, with 23 of the 31 observations agreeing to within measurement and calculation uncertainty. The consistency between the observed and computed radiances suggests that the MSIS model provides a reasonably accurate representation of temperature and atomic oxygen in the upper mesosphere and lower thermosphere.

Place, publisher, year, edition, pages
2004. Vol. 109, no A12, article id A12306
Keywords [en]
Atomic oxygen, Far-infrared, Oxygen emissions, Thermospheric energy balance
National Category
Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-2489DOI: 10.1029/2004JA010595ISI: 000226028600001Scopus ID: 2-s2.0-28444442851Local ID: 01c0aa95-1a4e-4074-ab75-4741f5129df1OAI: oai:DiVA.org:ltu-2489DiVA, id: diva2:975341
Note

Upprättat; 2004; 20150217 (ninhul)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-10-04Bibliographically approved

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Martin-Torres, Javier

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