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AGU: Geophysical Research Letters

 

Index Terms

  • Meteorology and Atmospheric Dynamics: Waves and tides
  • Meteorology and Atmospheric Dynamics: Climatology
  • Meteorology and Atmospheric Dynamics: Remote sensing
  • Meteorology and Atmospheric Dynamics: Theoretical modeling

Abstract

Radar wind profiler observations of solar semidiurnal atmospheric tides

C. David Whiteman

Pacific Northwest Laboratory, Richland, Washington

X. Bian

Pacific Northwest Laboratory, Richland, Washington

Semidiurnal solar tides in the mid‐latitude troposphere are investigated using harmonic analysis of 404 MHz radar profiler wind data obtained from a wide longitude zone in the U.S. The tides are apparent above a 1000‐m‐deep surface layer and increase in amplitude with height, attaining speeds of 0.5–0.7 m/s at 5–7 km. Observed wind characteristics agree well with tidal characteristics obtained with a dynamical model driven by observed global semidiurnal horizontal pressure gradients.

Received 1 November 1994; accepted 17 February 1995; .

Citation: Whiteman, C. D., and X. Bian (1995), Radar wind profiler observations of solar semidiurnal atmospheric tides, Geophys. Res. Lett., 22(8), 901–904.

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