MEASUREMENTS OF THE DIURNAL TIDES IN THE 80- TO 100-km ALTITUDE RANGE AT ARECIBO.

John David Mathews

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Abstract

The incoherent scatter radar at Arecibo has been used to measure the 80- to 100-km wind system on two November and two April days. The wind system is shown to correspond most closely to the S//1//,//1 mode diurnal tide. Dissipation effects were always important, and in the April data the tide was seen to 'break' at an altitude of 92 km and an amplitude of 60 m/s. The observed vertical wavelength was lambda //z equals 19. 5 km; a Richardson number of 0. 2, a 40 degree K temperature oscillation, and an upward energy flux of 4. 2 multiplied by 10** minus **4 W/m**2 were inferred.

Original languageEnglish (US)
Pages (from-to)4671-4677
Number of pages7
JournalJ Geophys Res
Volume81
Issue number25
DOIs
Publication statusPublished - Jan 1 1976

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All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Mathews, John David. / MEASUREMENTS OF THE DIURNAL TIDES IN THE 80- TO 100-km ALTITUDE RANGE AT ARECIBO. In: J Geophys Res. 1976 ; Vol. 81, No. 25. pp. 4671-4677.