Diurnal Tidal Motions Near the Stratopause during 48 Hours at White Sands Missile Range

Beyers, Norman J.; Miers, Bruce T.; Reed, Richard J.

doi:10.1175/1520-0469(1966)023<0325:dtmnts>2.0.co;2

Cited by 19 publications

(6 citation statements)

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“…135" Long.) have been made available (Craine & Rezvani 1970). No obvious diurnal variation pattern is visible; again larger amplitudes occur in winter than in summer.…”

Section: (D) West Coast Observationsmentioning

confidence: 99%

“…The only repeatable temperature variation appears to be a somewhat questionable 24-hr diurnal fluctuation from 40 to 60 km (e.g. Beyers, Miers & Reed 1966;Theon et al 1967;Finger & Wolf 1967;Ballard 1967). Between 60 and 125 km no agreement exists about the presence and nature of temperature variations (for example, compare the data of Revah's Fig.…”

Section: Factors Controlling Long-range Propagationmentioning

confidence: 99%

“…This wind is unimportant below 60 km where the amplitude is under 10 m s-l (Miers 1965;Beyers et al 1966). Above 80 km it is the most regular of tidal components; the amplitude grows exponentially with elevation until 105-1 10 km except in summer when the effect is weak and variable (Spizzichino 1969).…”

Section: (C)semi-diurnal Tidal Windsmentioning

confidence: 99%

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Natural Infrasound as an Atmospheric Probe

Donn¹,

Rind²

2010

Geophysical Journal of the Royal Astronomical Society

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For four years continuous recording of infrasonic signals in the frequency range 0.1 to 1 Hz, known as microbaroms, has been conducted at Palisades, New York. The microbaroms we recorded are radiated into the atmosphere by interfering ocean waves in the North Atlantic as far as 2000 km away. A characteristic diurnal variation in the amplitude of the received signal has been noted, independent of any variation in the source. We conclude that the variation is due to variations of the factors affecting atmospheric sound propagation, namely wind and temperature.In winter a semidiurnal variation in signal amplitude is observed, with maximum reception around 11 : 00 and 22 : 00 local time. Reference to wind and temperature observations in the literature shows that at these times the lowest level of reflection of the vertically propagating signal occurs between 100 and llOkm due to the presence of strong east winds. At 18 : 00, time of minimum amplitudes, the reflection level rises to about 115 km because of a change in tidal wind phase. Viscous dissipation associated with the changed reflection height can account for the observed signal weakening. A third maximum, a less regular effect, is found to be related to more variable winds between 95 and 105 km.In summer, reflection is found to occur from about 50 km due to the presence of stratospheric easterlies. The summer diurnal variation, different from that of the winter, exhibits only a weak minimum about 20 : 00. This appears to result from a diurnal temperature variation superimposed on a diurnal wind variation. Abnormally high microbaroms were recorded at times that can be related to an atmospheric event known as a stratospheric warming. Microbaroms thus provide a continuously available natural mechanism for probing the upper atmosphere. We conclude that the establishment of microbarom observation systems could give a comprehensive technique for monitoring several upper atmospheric parameters.

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“…135" Long.) have been made available (Craine & Rezvani 1970). No obvious diurnal variation pattern is visible; again larger amplitudes occur in winter than in summer.…”

Section: (D) West Coast Observationsmentioning

confidence: 99%

Section: Factors Controlling Long-range Propagationmentioning

confidence: 99%

See 1 more Smart Citation

Natural Infrasound as an Atmospheric Probe

Donn¹,

Rind²

2010

Geophysical Journal of the Royal Astronomical Society

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“…Rayleigh lidars can provide useful information in this region (e.g., CHANIN and HAUCHECORNE, 1981;GILLE et al, 1991). In this region, however, observations on tides have come mainly from rocket experiments (e.g., BEYERS et al, 1966;BEYERS and MIERS, 1968;REED et al, 1969;GROVES, 1974GROVES, , 1975GROVES, , 1980. Most of these studies correspond to high and middle latitude regions and there is relative scanty information on tides in the equatorial middle atmosphere.…”

Section: Introductionmentioning

confidence: 99%

An Observational Study of Middle Atmospheric Diurnal Tides over Trivandrum (8.5.DEG.N, 77.DEG.E).

Sasi¹,

Murthy²

1993

J. geomagn. geoelec

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“…Four rocketsonde experiments have been conducted at White Sands Missile Range which have provided information on tides (Beyers and Miers, 1965; Miers, 1965; Beyers et al, 1966). These experiments consisted of series of soundings spaced from two to four hours apart and continued over periods of 24 to 48 hours.…”

Section: Introductionmentioning

confidence: 99%