Results 1 to 10 of about 960 (194)

Modeling the evolution of chorus waves into plasmaspheric hiss [PDF]

Journal of Geophysical Research, 2011
Plasmaspheric hiss (PH) is a band-limited, incoherent whistler mode emission found predominantly in the plasmasphere or high-density plasma regions in the near-Earth space environment.
Bortnik, J., Chen, L., Horne, R.B., Li, W., Thorne, R.M.   +4 more
exaly   +5 more sources

Prediction of plasmaspheric hiss spectral classes

Frontiers in Astronomy and Space Sciences, 2022
We present a random forests machine learning model for prediction of plasmaspheric hiss spectral classes from the Van Allen Probes dataset. The random forests model provides accurate prediction of plasmaspheric hiss spectral classes obtained by the self ...
Dmitri Kondrashov, Alexander Y. Drozdov, Daniel Vech, David M. Malaspina, David M. Malaspina   +4 more
doaj   +2 more sources

Disappearance of plasmaspheric hiss following interplanetary shock [PDF]

Geophysical Research Letters, 2015
Plasmaspheric hiss is one of the important plasma waves controlling radiation belt dynamics. Its spatiotemporal distribution and generation mechanism are presently the object of active research.
Abel, Agapitov, Albert, Baker, Baker, Baker, Blake, Blake, Bortnik, Bortnik, Bortnik, Bortnik, C. A. Kletzing, Chao Shen, Chen, Chen, Chen, Chen, Chen, Chen, D. N. Baker, Foster, Fu, Fuliang Xiao, Funsten, G. B. Hospodarsky, G. D. Reeves, Glauert, Golden, Goldstein, Gonzalez, Gonzalez, Green, H. E. Spence, H. O. Funsten, Hayakawa, Heppner, Horne, Hudson, Hui Zhu, Huinan Zheng, J. B. Blake, J. R. Wygant, Kennel, Kennel, Kletzing, Kurth, Li, Li, Li, Li, Li, Lyons, Mauk, McComas, Meredith, Meredith, Meurant, Min Zhang, Mourenas, Ni, Nunn, Omura, Peng, Reeves, Ronnmark, Russell, Samsonov, Sheeley, Shklyar, Shprits, Shue, J., Shui Wang, Smith, Sonwalkar, Spence, H. E., Stone, Su, Su, Su, Su, Su, Z., Subbotin, Summers, Summers, Summers, Thorne, Thorne, Thorne, Thorne, R. M., Tsurutani, Tsurutani, B. T., Tu, Turner, Ukhorskiy, W. S. Kurth, Wang, Wygant, J., Yuming Wang, Zhang, Zhenpeng Su, Zhou, Zong   +102 more
core   +6 more sources

Generation of unusually low frequency plasmaspheric hiss [PDF]

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014
It has been reported from Van Allen Probe observations that plasmaspheric hiss intensification in the outer plasmasphere, associated with a substorm injection on 30 September 2012, occurred with a peak frequency near 100 Hz, well below the typical ...
Blake, Bortnik, Bortnik, Bortnik, C. A. Kletzing, Chen, Chen, Chen, Church, Draganov, G. B. Hospodarsky, G. D. Reeves, Green, H. E. Spence, Hayakawa, Horne, Huang, J. B. Blake, J. F. Fennell, Jacob Bortnik, Kimura, Kletzing, Li, Lunjin Chen, Mauk, Meredith, Meredith, Ni, Richard B. Horne, Richard M. Thorne, Russell, Smith, Solomon, Sonwalkar, Spence, Summers, Thorne, Thorne, Tsurutani, Tsurutani, Tsurutani, W. S. Kurth, Wen Li   +42 more
core   +7 more sources

Identifying the source region of plasmaspheric hiss [PDF]

Geophysical Research Letters, 2015
The presence of the plasmaspheric hiss emission around the Earth has been known for more than 50 years but its origin has remained unknown in terms of source location and mechanism.
Arnaud Masson, Bortnik, Carpenter, Chappell, Chum, Cornilleau-Wehrlin, Darrouzet, Darrouzet, Elphic, Escoubet, Harri Laakso, Ivana Kolmasová, Lyons, Matthew Taylor, Meredith, Meredith, Moldwin, Moldwin, Němec, Ondrej Santolik, Philippe Escoubet, Richard Horne, Santolik, Santolik, Santolík, Santolík, Summers, Thorne, Walsh   +28 more
core   +4 more sources

Internal source of plasmaspheric hiss on Earth

地球与行星物理论评, 2022
Plasmasphere is an upward extension of the ionosphere at low and middle latitudes along the closed magnetic field lines rooted in the Earth, where the trapped whistler-mode waves in the frequency range from tens to thousands of Hertz are named as ...
Zhenpeng Su, Nigang Liu, Zhaoguo He, Zhiyong Wu   +3 more
doaj   +2 more sources

A first approach to model the low-frequency wave activity in the plasmasphere [PDF]

Annales Geophysicae, 2002
A comprehensive empirical model of waves is developed in the objective to simulate wave-particle interactions involved in the loss and acceleration of radiation belt electrons.
R. André, R. André, R. André, F. Lefeuvre, F. Simonet, U. S. Inan   +5 more
doaj   +5 more sources

Wave-induced loss of ultra-relativistic electrons in the Van Allen radiation belts. [PDF]

Nat Commun, 2016
The dipole configuration of the Earth's magnetic field allows for the trapping of highly energetic particles, which form the radiation belts. Although significant advances have been made in understanding the acceleration mechanisms in the radiation belts,
Shprits YY, Drozdov AY, Spasojevic M, Kellerman AC, Usanova ME, Engebretson MJ, Agapitov OV, Zhelavskaya IS, Raita TJ, Spence HE, Baker DN, Zhu H, Aseev NA.   +12 more
europepmc   +3 more sources

Resonant scattering of energetic electrons by unusual low-frequency hiss [PDF]

Geophysical Research Letters, 2014
We quantify the resonant scattering effects of the unusual low-frequency dawnside plasmaspheric hiss observed on 30 September 2012 by the Van Allen Probes. In contrast to normal (∼100-2000 Hz) hiss emissions, this unusual hiss event contained most of its
Binbin Ni, Wen Li, Jacob Bortnik
exaly   +3 more sources

Empirically Estimated Electron Lifetimes in the Earth's Radiation Belts: Comparison With Theory [PDF]

Geophysical Research Letters, 2020
We compute quasilinear diffusion rates due to pitch angle scattering by various mechanisms in the Earth's electron radiation belts. The calculated theoretical lifetimes are compared with observed decay rates, and we find excellent qualitative agreement ...
S. G. Claudepierre, Q. Ma, J. Bortnik, T. P. O'Brien, J. F. Fennell, J. B. Blake   +5 more
doaj   +2 more sources