Observations of the O(3P) fine structure line at 63 μm in the upper mesosphere and lower thermosphere

Martin G. Mlynczak, Javier Martin-Torres, David G. Johnson, David P. Kratz, Wesley A. Traub, Ken Jucks

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

[1] 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.

Original languageEnglish
Article numberA12306
JournalJournal of Geophysical Research: Space Physics
Volume109
Issue numberA12
DOIs
Publication statusPublished - Jan 1 2004
Externally publishedYes

Fingerprint

mesosphere
thermosphere
spectrometers
spectrometer
fine structure
radiance
Mass spectrometers
Oxygen
Stratospheric Ozone
oxygen
mass spectrometers
Infrared spectrometers
Photochemical reactions
high altitude balloons
Balloons
Emission spectroscopy
Spectrometers
photochemistry
infrared spectrometers
Fourier transforms

Keywords

  • Atomic oxygen
  • Far-infrared
  • Oxygen emissions
  • Thermospheric energy balance

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Observations of the O(3P) fine structure line at 63 μm in the upper mesosphere and lower thermosphere. / Mlynczak, Martin G.; Martin-Torres, Javier; Johnson, David G.; Kratz, David P.; Traub, Wesley A.; Jucks, Ken.

In: Journal of Geophysical Research: Space Physics, Vol. 109, No. A12, A12306, 01.01.2004.

Research output: Contribution to journalArticle

Mlynczak, Martin G. ; Martin-Torres, Javier ; Johnson, David G. ; Kratz, David P. ; Traub, Wesley A. ; Jucks, Ken. / Observations of the O(3P) fine structure line at 63 μm in the upper mesosphere and lower thermosphere. In: Journal of Geophysical Research: Space Physics. 2004 ; Vol. 109, No. A12.
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