The diurnal variation of the polarisation of 25-mHz (pc 3) micropulsations in the horizontal plane

Pykett, C.E

doi:10.1016/0021-9169(72)90097-9

Cited by 2 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All characteristics, including amplitude, frequency, and polarization, of pulsations have been examined, but because of the more complex analysis procedures necessary the polarization characteristics of pulsations have perhaps been the least well examined and understood. In the past, polarization analyses of discrete pulsation events have been carried out by using the hodogram technique [e.g., Sugiura, 1961;Nagata, 1964;Troitskaya, 1964;Saito, 1969; McPherron et al, !972] as well as more mathematical procedures, which have been used predominantly for statistical studies of the polarization characteristics of larger bodies of data [e.g., Fowler et al, 1967; Rankin and Kurtz, 1970;Pykett, 1972].…”

mentioning

confidence: 99%

ULF pulsation evidence of the plasmapause 2. Polarization studies of Pc 3 and Pc 4 pulsations nearL=4 and at a latitude network in the conjugate region

Fukunishi¹,

Lanzerotti²

1974

J. Geophys. Res.

View full text Add to dashboard Cite

The detailed nonstatistical study of H. Fukunishi and L. J. Lanzerotti (1974) of magnetic pulsations observed on January 5, 1972, is continued in this paper with a thorough examination of the polarization characteristics of Pc 3 and Pc 4 frequency pulsations. The sense of wave polarizations clearly confirms the conclusions of Fukunishi and Lanzerotti that Pc 3 and Pc 4 pulsations near L=4 on this day originate in narrow latitude ranges, the Pc 4 events probably being excited inside the plasmapause and the Pc 3 events probably being excited outside the plasmapause. The phase characteristics of the individual wave trains suggest a long wavelength in the azimuthal direction. By using conjugate data it is concluded for the first time that both the Pc 3 and the Pc 4 waves observed near L=4 can be characterized as odd mode standing Alfvén waves.

show abstract

mentioning

confidence: 99%

ULF pulsation evidence of the plasmapause 2. Polarization studies of Pc 3 and Pc 4 pulsations nearL=4 and at a latitude network in the conjugate region

Fukunishi¹,

Lanzerotti²

1974

J. Geophys. Res.

View full text Add to dashboard Cite

show abstract

“…One approach is to do a detailed study, using one or more stations, of a relatively small number of events [e.g., Fukunishi and Lan3erotti, 1974a, b]. The other complementary approach is to do a statistical study of a large number of events [e.g., Rankin and Kurtz, 1970;Pykett, 1972]. In this paper we report the results of a study designed to determine statistically the nature and variation of the polarization parameters of Pc 3 magnetic pulsations at synchronous orbit.…”

Section: Introductionmentioning

confidence: 99%

A statistical study of Pc 3 magnetic pulsations at synchronous orbit, ATS 6

Bossen¹,

McPherron

Russell³

1977

J. Geophys. Res.

View full text Add to dashboard Cite

A statistical study was made of 420 Pc 3 magnetic pulsation events observed at ATS 6 in synchronous orbit by using digital power spectral and coherency (polarization) analysis. Pc 3 are a common occurrence at ATS 6 during local morning and have a peak occurrence near 1000 LT. The dominant period is ∼30 s, and the waves are linearly polarized and generally transverse to the magnetic field. Based on azimuth angle, there are two classes of waves with different characteristics: (1) azimuthal, which comprise the main portion of the dominant frequency observations, show a local time‐frequency dependence (with higher frequencies occurring near noon), are linear and very transverse, and show a variation of azimuth with local time, and (2) radial, which mainly occur at frequencies higher than 0.03 Hz, show no variation of frequency with local time, are linear but often have a significant compressional component, and show a variation of azimuth with local time. These characteristics agree quite well with those predicted by models of local field line resonance excited by a surface wave generated at the magnetopause and suggest that no special feature in the density gradient is necessary for the resonance to occur.

show abstract

The diurnal variation of the polarisation of 25-mHz (pc 3) micropulsations in the horizontal plane

Cited by 2 publications

References 18 publications

ULF pulsation evidence of the plasmapause 2. Polarization studies of Pc 3 and Pc 4 pulsations nearL=4 and at a latitude network in the conjugate region

ULF pulsation evidence of the plasmapause 2. Polarization studies of Pc 3 and Pc 4 pulsations nearL=4 and at a latitude network in the conjugate region

A statistical study of Pc 3 magnetic pulsations at synchronous orbit, ATS 6

Contact Info

Product

Resources

About