Observation and interpretation of spectra of atmospheric gravity wave perturbations with upward and downward phase progression

S. A. Lintelman, C. S. Gardner

Research output: Contribution to journalArticlepeer-review

Abstract

For perturbations with observed frequencies between ωo = 2π/(120 min) and 2 π/(12 min) or vertical wave numbers between m = 2π/(10 km) and 2 π/(1 km), on average, two thirds of the density variance was associated with perturbations exhibiting downward phase progression (i.e. upwardly propagating waves) and one third of the variance was associated with perturbations exhibiting upward phase progression. Models were used to predict the m and ωo spectral indices and magnitudes associated with upward and downward phase perturbations. For the ωo spectra the measured upward phase spectral indices (mean = -1.6) were consistently shallower than the downward phase spectral indices (mean = -1.9). -from Authors

Original languageEnglish (US)
Pages (from-to)16,959-16,971
JournalJournal of Geophysical Research
Volume99
Issue numberD8
DOIs
StatePublished - Jan 1 1994
Externally publishedYes

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

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