The distribution of irregularities in the antarctic ionosphere—I

Titheridge, J. E.; Stuart, G. F.

doi:10.1016/0021-9169(68)90043-3

Cited by 18 publications

(1 citation statement)

References 11 publications

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“…[ 1971 ] state that there is a high-latitude region of scintillations whose equatorial boundary reaches approximately 57 ø invariant latitude near midnight. The high-latitude scintillation region has also been studied in the northern hemisphere by Frihagen [1971] and in the southern hemisphere by Titheridge and Stuart [1968] and by Briggs [1964]. Frihagen attempted to relate his observations to soft particle precipitation, while Briggs correlated the scintillations with spread F occurrence.…”

Section: Introductionmentioning

confidence: 99%

Plasma density irregularities in the high-latitude top side ionosphere

Phelps¹,

Sagalyn²

1976

J. Geophys. Res.

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Thermal plasma density measurements obtained by using the spherical electrostatic analyzer probe carried by the polar orbiting satellite Isis 1 have been spectrally analyzed to provide quantitative results on the amplitude and scale size distribution of the plasma irregularities in the high‐latitude top side ionosphere. The range of scale sizes examined, 200 m to over 100 km under normal conditions, is more than an order of magnitude greater than that available from ground‐based measurements. Data in the altitude range 574–3523 km and from the period February 1969 to April 1972 have been analyzed. Irregularities in the high‐latitude region from 40° invariant latitude up to the invariant L pole have been studied. In over 90% of the cases examined, the power spectra are found to fit a power law of the form P = P0f−β, where the index β varies within the range 1.5–2.5. The power spectral density was integrated over the scale size range 1–10 km in order to analyze quantitatively latitudinal variations of the irregularity amplitude. While the boundaries of the high‐latitude irregularity zone on particular orbits examined by using this technique are in agreement with earlier morphological studies, it is also evident that the amplitude of the irregularities within the high‐latitude irregularity region itself shows irregular enhancements above a generally raised amplitude level.

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Section: Introductionmentioning

confidence: 99%

Plasma density irregularities in the high-latitude top side ionosphere

Phelps¹,

Sagalyn²

1976

J. Geophys. Res.

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Radio Observations of the Auroral F-Region

Jones

1980

Exploration of the Polar Upper Atmosphere

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On ionospheric investigations by coherent radiowaves emitted from artificial Earth satellites

Al'pert

1975

Space Sci Rev

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Results of radio-investigations of the ionosphere with the help of coherent radiowaves emitted by beacons placed on artificial Earth satellites are given. The data discussed cover the period from 1958, after the launch of Sputniks I and 3, until the last years, when the geostationary satellites ATS were launched. It is shown that up to the present justice has not be done in these experiments to investigations of the local properties of the near Earth plasma. This is a great deficiency in this field of investigation. Data are given which illustrate results of investigations of local ionospheric characteristics. Such data may help to solve some problems in the present stage of the near Earth plasma study. A new possibility of radio-investigation of the near Earth plasma with the help of a chain of satellites connected together is pointed out.

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The distribution of irregularities in the antarctic ionosphere—I

Cited by 18 publications

References 11 publications

Plasma density irregularities in the high-latitude top side ionosphere

Plasma density irregularities in the high-latitude top side ionosphere

Radio Observations of the Auroral F-Region

On ionospheric investigations by coherent radiowaves emitted from artificial Earth satellites

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