Lee waves in the Andes Region, Mountain Wave Project (MWP) of OSTIV

Authors

  • Carsten Lindemann Berlin, 12165, Germany
  • René Heise Berlin, 10179, Germany
  • Wolf-Dietrich Herold Brugg, 5200, Switzerland

Keywords:

Meteorology, Atmospheric physics

Abstract

Frequent occurrence of strong cross-mountain winds makes the Argentinean Andes a unique location to investigate lee wave systems and use them for long distance soaring flight.  Results from the 1999 Andes Expedition of the Mountain Wave Project (MWP) confirmed the potential for excellent soaring with straight out flights up to 1550km.  Analyses of data collected in airborne measurements from a motorglider yield a surprisingly high vertical momentum transport and indicate wave motion more than 100km downstream of the mountains.


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