Detection of the lunar diurnal atmospheric tide

Details Detection of the lunar diurnal atmospheric tide Detection of the lunar diurnal atmospheric tide

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mwrv..112.1620h&link_type=abstract

Monthly Weather Review (ISSN 0027-0644), vol. 112, Aug. 1984, p. 1620-1625. Sponsorship: Natural Sciences and Engineering Resear

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Atmospheric Tides, Diurnal Variations, Lunar Tides, Atmospheric Pressure, Power Spectra, Time Series Analysis

Scientific paper

A search was conducted for the principal lunar diurnal tide (O1) in an 18.5-year time series of twice-daily digitized sea level pressure analyses covering the region 20-90 deg N. At 20, 25, 30 and possibly at 35 deg N, there is evidence for a systematic variation of the zonal wavenumber-one harmonic of the pressure as a function of the phase of the O1 tidal potential. This variation is clearly dominated by a westward traveling component (i.e., one that follows the tidal potential around the earth each day). The computed amplitudes are very small (less than 0.01 mb), and north of 35 deg N the random meteorological noise obscures the O1 tidal oscillation to the point where it cannot be detected from analysis of the present data.

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