Global observations of 2 day wave coupling to the diurnal tide in a high-altitude forecast-assimilation system

R. S. Lieberman, D. M. Riggin, V. Nguyen, S. E. Palo, D. E. Siskind, N. J. Mitchell, G. Stober, S. Wilhelm, N. J. Livesey

Research output: Contribution to journalArticle

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Abstract

We examine wave components in a high-altitude forecast-assimilation system that arise from nonlinear interaction between the diurnal tide and the westward traveling quasi 2 day wave. The process yields a westward traveling “sum” wave with zonal wave number 4 and a period of 16 h, and an eastward traveling “difference” wave with zonal wave number 2 and a period of 2 days. While the eastward 2 day wave has been reported in satellite temperatures, the westward 16 h wave lies outside the Nyquist limits of resolution of twice daily local time satellite sampling. Hourly output from a high-altitude forecast-assimilation model is used to diagnose the nonlinear quadriad. A steady state primitive equation model forced by tide-2 day wave advection is used to intepret the nonlinear wave products. The westward 16 h wave maximizes in the midlatitude winter mesosphere and behaves like an inertia-gravity wave. The nonlinearly generated component of the eastward 2 day wave maximizes at high latitudes in the lower thermosphere, and only weakly penetrates to low latitudes. The 16 h and the eastward 2 day waves are of comparable amplitude and alias to the same apparent frequency when viewed from a satellite perspective.

LanguageEnglish
Pages4135-4149
Number of pages15
JournalJournal of Geophysical Research : Atmospheres
Volume122
Issue number8
DOIs
StatusPublished - 27 Apr 2017

Fingerprint

Tides
assimilation
high altitude
tides
forecasting
tide
gravity
winter
Satellites
forecast
temperature
satellite temperature
primitive equations
sampling
nonlinear wave
Gravity waves
temperate regions
thermosphere
mesosphere
Advection

Keywords

  • Waves

ASJC Scopus subject areas

  • Geophysics
  • Oceanography
  • Forestry
  • Ecology
  • Aquatic Science
  • 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

Lieberman, R. S., Riggin, D. M., Nguyen, V., Palo, S. E., Siskind, D. E., Mitchell, N. J., ... Livesey, N. J. (2017). Global observations of 2 day wave coupling to the diurnal tide in a high-altitude forecast-assimilation system. Journal of Geophysical Research : Atmospheres, 122(8), 4135-4149. DOI: 10.1002/2016JD025144

Global observations of 2 day wave coupling to the diurnal tide in a high-altitude forecast-assimilation system. / Lieberman, R. S.; Riggin, D. M.; Nguyen, V.; Palo, S. E.; Siskind, D. E.; Mitchell, N. J.; Stober, G.; Wilhelm, S.; Livesey, N. J.

In: Journal of Geophysical Research : Atmospheres, Vol. 122, No. 8, 27.04.2017, p. 4135-4149.

Research output: Contribution to journalArticle

Lieberman, RS, Riggin, DM, Nguyen, V, Palo, SE, Siskind, DE, Mitchell, NJ, Stober, G, Wilhelm, S & Livesey, NJ 2017, 'Global observations of 2 day wave coupling to the diurnal tide in a high-altitude forecast-assimilation system' Journal of Geophysical Research : Atmospheres, vol 122, no. 8, pp. 4135-4149. DOI: 10.1002/2016JD025144
Lieberman, R. S. ; Riggin, D. M. ; Nguyen, V. ; Palo, S. E. ; Siskind, D. E. ; Mitchell, N. J. ; Stober, G. ; Wilhelm, S. ; Livesey, N. J./ Global observations of 2 day wave coupling to the diurnal tide in a high-altitude forecast-assimilation system. In: Journal of Geophysical Research : Atmospheres. 2017 ; Vol. 122, No. 8. pp. 4135-4149
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