Dynamics of the Earth’s radiation belts

Tverskaya, L. V.

doi:10.3103/s0027134910040028

Cited by 10 publications

(16 citation statements)

References 18 publications

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“…The main loss mechanism of protons of the radiation belts during quiet periods are the ionization losses (e.g., Tverskoy, 1968;Schulz and Lanzerotti, 1974). During these periods, protons precipitated slightly and the influence of ioncyclotron and other waves on the lifetimes of protons can be neglected (e.g., Lyons and Williams, 1984).…”

Section: The Loss Mechanisms Of Protons Of the Earth's Radiation Beltsmentioning

confidence: 99%

“…The main contribution to the Coulomb losses of protons of the radiation belts make the cold plasma electrons (Tverskoy, 1964(Tverskoy, , 1965(Tverskoy, , 1968(Tverskoy, , 1969Nakada and Mead, 1965;Schulz and Lanzerotti, 1974;Spjeldvik, 1977, Jentsch, 1984, the density of which, N e , is strongly dependent on L (see Fig. 5).…”

Section: The Coulomb Losses Of Protonsmentioning

confidence: 99%

“…In Figure 5 shows also, for comparison, the functions N e (L) used in the classical papers on modeling radial diffusion of particles of the Earth's radiation belts. Tverskoy (1964Tverskoy ( , 1965Tverskoy ( , 1968Tverskoy ( , 1969 assumed that N e = 10 3 cm −3 and does not depend on L (the dotted line in Fig. 5).…”

Section: The Coulomb Losses Of Protonsmentioning

confidence: 99%

“…However, the main parameter of a theory of radial diffusion of this particles, D LL , which determines the rate of transport of particles, has a rather uncertain value. In theory, the value of D LL varies within 1 order of magnitude (Nakada and Mead, 1965;Tverskoy, 1968Tverskoy, , 1969Schulz and Lanzerotti, 1974). On the other hand, the values of D LL obtained from experimental data for the Earth's radiation belts vary for each L by 3 or more orders of magnitude (e.g., Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Under certain conditions, which performed for protons of the radiation belts, the equation is reduced to the ordinary diffusion equation (e.g., Tverskoy, 1968;Roederer, 1970;Schulz and Lanzerotti, 1974). However, the main parameter of a theory of radial diffusion of this particles, D LL , which determines the rate of transport of particles, has a rather uncertain value.…”

Section: Introductionmentioning

confidence: 99%

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Radial dependence of ionization losses of protons of the Earth's radiation belts

Kovtyukh

2016

Ann. Geophys.

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Abstract. Coulomb losses and charge exchange of protons are considered in detail. On the basis of modern models of the plasmasphere and the exosphere, the radial dependences of the rates of ionization losses of protons, with µ from 0.3 to 10 keV nT −1 , of the Earth's radiation belts near the equatorial plane are calculated for quiet periods. For calculation of Coulomb losses of protons we used data of ISEE-1 satellite (protons with energy from 24 to 2081 keV) on L from 3 to 9, data of Explorer-45 satellite (protons with energy from 78.6 to 872 keV) on L from 3 to 5 and data of CRRES satellite (protons with energy from 1 to 100 MeV) on L ≤ 3 (L is the McIlwain parameter). It is shown that with decreasing L the rate of ionization losses of protons of the radiation belts is reduced; for protons with µ > 1.2 keV nT −1 in a narrow region ( L ∼ 0.5) in the district of plasmapause in this dependence may form a local minimum of the rate. We found that the dependence from µ of the boundary on L between Coulomb losses and charge exchange of the trapped protons with hydrogen atoms is well approximated by the function L b = 4.71µ 0.32 , where, and at L > L b (µ) dominates charge exchange of protons. We found the effect of subtracting the Coulomb losses from the charge exchange of protons of the radiation belts at low µ and L, which can simulate a local source of particles.

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Section: The Loss Mechanisms Of Protons Of the Earth's Radiation Beltsmentioning

confidence: 99%

Section: The Coulomb Losses Of Protonsmentioning

confidence: 99%

Section: The Coulomb Losses Of Protonsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Radial dependence of ionization losses of protons of the Earth's radiation belts

Kovtyukh

2016

Ann. Geophys.

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Nonlinear plasma density modification by the ponderomotive force of ULF pulsations at the dayside magnetosphere

Nekrasov

Feygin

2012

Astrophys Space Sci

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We investigate analytically and numerically a nonlinear modification of the magnetospheric plasma density under the action of the ponderomotive force induced by ULF traveling waves, using the nonlinear stationary force balance equation. This equation is applied to both the dipole and dayside magnetosphere having one and two minima of the geomagnetic field near the magnetospheric boundary. The separate and joint actions of the ponderomotive, centrifugal, and gravitational forces on the density distribution are shown.

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Investigation of ionospheric TEC anomalies caused by space weather conditions

Alçay

Gungor

2020

Astrophys Space Sci

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Dynamics of the Earth’s radiation belts

Cited by 10 publications

References 18 publications

Radial dependence of ionization losses of protons of the Earth's radiation belts

Radial dependence of ionization losses of protons of the Earth's radiation belts

Nonlinear plasma density modification by the ponderomotive force of ULF pulsations at the dayside magnetosphere

Investigation of ionospheric TEC anomalies caused by space weather conditions

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