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Volume 61 Supplement 4

Special Issue: Coupling Processes in the Equatorial Atmosphere (CPEA)

Kelvin waves in stratosphere, mesosphere and lower thermosphere temperatures as observed by TIMED/SABER during 2002–2006

Earth, Planets and Space volume 61, pages 447–453 (2009)Cite this article

Abstract

Temperature measurements from the SABER instrument on the TIMED spacecraft are used to elucidate the properties of Kelvin waves and other equatorial oscillations over the altitude range 20–120 km during 2002–2006. The dominant Kelvin waves transition from long periods (52–10 days) and short wavelengths (9–13 km) in the stratosphere, to shorter periods (2–3 days) and longer wavelengths (35–45 km) in the 80–120 km height region. Ultra-Fast Kelvin Waves (UFKW) with periods of 2.5–4.5 days intermittently exist at amplitudes of order 3–10 K between 80–120 km during all months of the year, with variability at periods typically in the 20–60 day range. An Intra-seasonal oscillation (ISO) of zonal mean temperatures also exists with periods 20–60 days that may be driven by Eliassen-Palm Flux Divergences (EPFD) due, at least in part, to UFKW and migrating diurnal tides.

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Authors and Affiliations

  1. Department of Aerospace Engineering Sciences, UCB 429, University of Colorado, Boulder, CO, 80309-0429, USA

    Jeffrey M. Forbes, Xiaoli Zhang & Scott E. Palo

  2. Center for Atmospheric Sciences, Hampton University, Hampton, VA, 23668, USA

    James Russell

  3. NASA Langley Research Center, Hampton, VA, 23681-0001, USA

    Christopher J. Mertens & Martin Mlynczak

Authors
  1. Jeffrey M. Forbes
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  2. Xiaoli Zhang
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  3. Scott E. Palo
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  4. James Russell
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  5. Christopher J. Mertens
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  6. Martin Mlynczak
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Correspondence to Jeffrey M. Forbes.

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Forbes, J.M., Zhang, X., Palo, S.E. et al. Kelvin waves in stratosphere, mesosphere and lower thermosphere temperatures as observed by TIMED/SABER during 2002–2006. Earth Planet Sp 61, 447–453 (2009). https://doi.org/10.1186/BF03353161

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  • DOI: https://doi.org/10.1186/BF03353161

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