Theoretical and Applied Climatology

, Volume 52, Issue 1–2, pp 3–17 | Cite as

Observations of flow structure in a small forested valley system

  • E. Mursch-Radlgruber
Article

Summary

Features of the mean flow structure in a small valley system in the Rosalian mountain range are discussed using data from a wind measurement network. Tethered balloon measurements during periods of clear sky form the basic dataset for the analysis of drainage winds and temperature inversions. During periods of weak ambient winds the existence of a pure thermally driven nocturnal valley wind system is shown. With strong ambient winds opposing the drainage flow, a reduced drainage height but the same jet maximum as with weak ambient winds is found. On the other hand with “aiding” flow the drainage winds are suppressed and flow reversal can occur. This strong valley flow interaction with the ambient wind indicates considerable dynamic influence on the evolution of drainage winds and on the breakup of temperature inversion structure for small valleys.

Keywords

Temperature Inversion Drainage Flow Ambient Wind Small Valley Inversion Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • E. Mursch-Radlgruber
    • 1
  1. 1.Institut für Meteorologie und PhysikUniversität für BodenkulturWienAustria

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