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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 19, issue 8
Ann. Geophys., 19, 921–924, 2001
https://doi.org/10.5194/angeo-19-921-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: MST

Ann. Geophys., 19, 921–924, 2001
https://doi.org/10.5194/angeo-19-921-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.

  31 Aug 2001

31 Aug 2001

Asymmetry of atmospheric microstructure over synoptic scales

R. M. Worthington R. M. Worthington
  • Co-operative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO 80309-0216, USA
  • Present address: RASC, University of Kyoto, Uji, Kyoto 611-0011, Japan

Abstract. Distortions are often seen in the angular distribution of echo-power from VHF wind-profiling radars, suggesting that thin stable layers, within the air flow, are distorted and tilted from horizontal. In vertical shear of the horizontal wind, the distribution of the layer tilt angles becomes skewed. A case study using six days of VHF radar data and synoptic charts above western Europe indicates that this asymmetry of atmospheric microstructure can exist throughout the troposphere and lower stratosphere, above and below the jet wind maximum, over horizontal scales of thousands of kilometres.

Key words. Meteorology and atmospheric dynamics (middle atmosphere dynamics; synoptic-scale meteorology; turbulence).

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