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AGU: Journal of Geophysical Research, Atmospheres

 

Index Terms

  • Meteorology and Atmospheric Dynamics: Turbulence
  • Meteorology and Atmospheric Dynamics: Stratosphere/troposphere interactions
  • Atmospheric Composition and Structure: Troposphere—constituent transport and chemistry
  • Meteorology and Atmospheric Dynamics: Waves and tides
Abstract
Cited By (10)
 

Abstract

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 107, 4084, 6 PP., 2002
doi:10.1029/2001JD000775

Airborne observations of turbulence, mixing, and gravity waves in the tropopause region

Edward Pavelin

Department of Physics, University of Wales, Aberystwyth, Aberystwyth, Wales, UK

James A. Whiteway

Department of Physics, University of Wales, Aberystwyth, Aberystwyth, Wales, UK

Reinhold Busen

Deutsches Zentrum für Luft- und Raumfahrt, Oberpfaffenhofen, Germany

Jörg Hacker

Airborne Research Australia, Flinders University, Salisbury South, South Australia, Australia

In situ observations of small-scale dynamics and compositional structure in the tropopause region are presented. The measurements were made aboard the Grob “Egrett” high-altitude research aircraft above Aberystwyth, Wales, in the summer of 2000. The observations presented here show evidence of mixing of ozone and water vapor in a patch of intense turbulence just above the tropopause. This turbulence is shown to be the result of wind shear above a tropospheric jet stream. The value of the vertical eddy diffusion coefficient in this turbulence is estimated to be 0.9 m2 s−1. It is also shown that wavelike perturbations superimposed on the overall tracer structure can be accounted for by a gravity wave.

Published 22 May 2002.

Citation: Pavelin, E., J. A. Whiteway, R. Busen, and J. Hacker (2002), Airborne observations of turbulence, mixing, and gravity waves in the tropopause region, J. Geophys. Res., 107(D10), 4084, doi:10.1029/2001JD000775.

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