Internal wave coupling processes in Earth’s atmosphere

Yiğit, Erdal; Medvedev, Alexander S.

doi:10.1016/j.asr.2014.11.020

Cited by 208 publications

(171 citation statements)

References 151 publications

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“…Here, we review studies of the effects of non-tidal planetary waves, gravity waves, and other oscillations on thermospheric density. See also the review by Yiğit and Medvedev (2015) on wave coupling processes in the atmosphere.…”

Section: Lower Atmospheric and In Situ Wave Forcingmentioning

confidence: 97%

Thermospheric mass density: A review

Emmert

2015

Advances in Space Research

196

217

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Section: Lower Atmospheric and In Situ Wave Forcingmentioning

confidence: 97%

Thermospheric mass density: A review

Emmert

2015

Advances in Space Research

196

217

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“…Method). Extension to the atmospheric applications can be found in (Torrence and Compo, 1998;Grinsted et al, 2004). To keep this paper consistent with the four above cited papers, we use the following acronyms CWT (Continuous Wavelet Transform) and WTC (Wavelet Transform Coherence).…”

Section: Methodsmentioning

confidence: 99%

“…Further, for all data the Continuous Wavelet Transform (CWT) and Wavelet Coherence (WTC) are computed. Detail description of wavelets can be found in Mallat (1998), Torrence and Compo (1998), Grinsted et al (2004).…”

Section: Methodmentioning

confidence: 99%

Book of Proceedings: Seventh Workshop, Sunny Beach, Bulgaria, 1-5 June 2015

2015

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Kalinichenko, A.A. Konovalenko1 A.I.Brazhenko, V.V. Solov'ev CME Bubnov, A.A. Stanislavsky, A.A. Konovalenko, S. Yerin, A.A. Gridin, A.A. Koval Advances in solar bursts observations by the low-frequency radio telescopes of a new age Abstract.The GOES data for the flare proton energies of 10 -100 MeV are analyzed. Proton fluxes ~ 10 32 acceleration takes at the current sheet decay. Proton acceleration of in a flare occurs along a singular line of the current sheet by the Lorentz electric field, as in the pinch gas discharge. The pulse of protons duration is by 2 -3 orders of magnitude longer than the duration of flares. The high-energy proton flow from the flares that appear on the Western part of the solar disk arrive to Earth with the time of flight. These particles propagate along magnetic lines of the Archimedes spiral connecting the flare with the Earth. Protons from the flare on the Eastern part of the solar disk begin to register with a delay of more than three hours. Such particles cannot get on the magnetic field line connecting the flare with the Earth. These protons reach the Earth, moving across the interplanetary magnetic field. The particles captured by the magnetic field of the solar wind are transported with solar wind and due to diffusion across the magnetic field. The patterns of solar cosmic rays generation demonstrated in this report are not detected during the small (Ф ≤ 1 см -2 с -1 стер -1 ) proton events. IntroductionAbout 30% of big flares (class X and even less class M) are accompanied by a flux of relativistic protons. Part of these protons hits the Sun and causes nuclear reactions. The other part of the protons propagates into the interplanetary medium. Despite decades of the effort, the relativistic flare protons remain the least studied manifestation of the flare [1]. The energy of the charged particles in the interplanetary plasma can change only due to the emission or movement along the electric field MdV/dt = eE + e[V×B]/c. The change of the energy of a particle moving in the field is dW = eE r dr. The electric field may be of different origin: the field of another charged particle (at a collision), space charge field, in particular due to polarization of charges in the plasma, the field induction dB/dt, etc. At the scattering by inhomogeneities of the magnetic field the particle can change the energy only due to motion in the electric field associated with a magnetic field fluctuation. This was clearly articulated in the well known work of Berezhko E. G., and Krymsky G. F. [2]: "Possibility of charged particles acceleration in the plasma in the related electric fields." The change of the energy at scattering by a magnetic fluctuation is determined by the magnitude and spatial scale of the electric field in such fluctuations Two possibilities of solar cosmic rays generation are discussed in the literature: a). Proton acceleration in the Lorentz electric field E rec = -V rec ×B cs /c along the singular lines (in particular the line B=0) in the current sheet during magnetic r...

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“…Global and mid-latitude ionospheric responses to this event have also been repeatedly studied [Yue et al, 2010;Pancheva and Mukhtarov, 2011;Bessarab et al, 2012;Fagundes et al, 2015]. However, most papers have dealt with the response of the low-latitude ionosphere to the 2009 SSW event [Chau et al, 2010;Goncharenko et al, 2010b] and tried to explain reasons for this response [Goncharenko et al, 2010a;Chau et al, 2011;Fejer et al, 2011;Pedatella et al, 2015;Yiğit et al, 2015]. In order to assess the validity and importance of each of the proposed mechanisms of the observed morning enhancement of the equatorial ionization anomaly and the afternoon decrease in the electron density in the equatorial and low-latitude ionospheric regions during the 2009 SSW event, numerous scientific teams carried out theoretical research using global models of the middle and upper atmosphere, which represent the thermosphere-ionosphere system [Fuller-Rowell et al, 2010, 2011Liu et al, 2010Liu et al, , 2013Bessarab et al, 2012;Jin et al, 2012].…”

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confidence: 99%