Results 31 to 40 of about 6,894 (155)

A statistical study of the spatial distribution and source-region size of chorus waves using Van Allen Probes data [PDF]

Annales Geophysicae, 2018
The spatial distribution and source-region size of chorus waves are important parameters for understanding their generation. In this work, we analyze over 3 years of continuous wave burst-mode data from the Van Allen Probes mission and build a data ...
S. Teng, S. Teng, X. Tao, X. Tao, W. Li, W. Li, Y. Qi, Y. Qi, Y. Qi, X. Gao, X. Gao, L. Dai, Q. Lu, Q. Lu, S. Wang, S. Wang   +15 more
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Energetic Proton Spectra Measured by the Van Allen Probes [PDF]

Journal of Geophysical Research: Space Physics, 2017
AbstractWe test the hypothesis that pitch angle scattering by electromagnetic ion cyclotron (EMIC) waves can limit ring current proton fluxes. For two chosen magnetic storms, during 17–20 March 2013 and 17–20 March 2015, we measure proton energy spectra in the region 3 ≤ L ≤ 6 using the RBSPICE‐B instrument on the Van Allen Probes.
Danny Summers, Run Shi, Mark J. Engebretson, Kjellmar Oksavik, Jerry W. Manweiler, Donald G. Mitchell   +5 more
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Intense chorus waves are the cause of flux-limiting in the heart of the outer radiation belt

Scientific Reports, 2022
Chorus waves play a key role in outer Van Allen electron belt dynamics through cyclotron resonance. Here, we use Van Allen Probes data to reveal a new and distinct population of intense chorus waves excited in the heart of the radiation belt during the ...
S. Chakraborty, I. R. Mann, C. E. J. Watt, I. J. Rae, L. Olifer, L. G. Ozeke, J. K. Sandhu, B. H. Mauk, H. Spence   +8 more
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Topside Ionosphere and Plasmasphere Modelling Using GNSS Radio Occultation and POD Data

Remote Sensing, 2021
A 3D-model approach has been developed to describe the electron density of the topside ionosphere and plasmasphere based on Global Navigation Satellite System (GNSS) measurements onboard low Earth orbit satellites.
Fabricio S. Prol, M. Mainul Hoque
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Bayesian Model for HOPE Mass Spectrometers on Van Allen Probes [PDF]

Journal of Geophysical Research: Space Physics, 2020
Abstract Space instruments rely heavily on modeling to predict and understand the instrument response, enabling a determination of the capabilities and resolution. The Bayesian approach provides a framework to incorporate prior knowledge and propagate uncertainty to predict the instrument response.
Alisha Daya Vira, Brian A Larsen, Ruth M. Skoug, Philip A Fernandes   +3 more
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Statistical characteristics of EMIC waves: Van Allen Probe observations [PDF]

Journal of Geophysical Research: Space Physics, 2015
AbstractUtilizing the data from the magnetometer instrument which is a part of the Electric and Magnetic Field Instrument Suite and Integrated Science instrument suite on board the Van Allen Probe A from September 2012 to April 2014, when the apogee of the satellite has passed all the magnetic local time (MLT) sectors, we obtain the statistical ...
Dedong Wang, Zhigang Yuan, Xiongdong Yu, Xiaohua Deng, Meng Zhou, Shiyong Huang, Haimeng Li, Zhenzhen Wang, Zheng Qiao, C. A. Kletzing, J. R. Wygant   +10 more
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Developing Chorus Wave Model Using Van Allen Probe and Arase Data

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023, 2023
Chorus waves play an important role in the dynamic evolution of energetic electrons in the Earth’s radiation belts and ring current. Due to the orbit limitation of Van Allen Probes, our previous chorus wave model developed using Van Allen Probe data is limited to low latitude.
Wang, D., SHPRITS, Y., Feng, T., Lepage, T., Michaelis, I., Miyoshi, Y., Kasahara, Y., Reeves, G., Nakamura, S., Santolik, O., Tsuchiya, F., Kumamoto, A., Matsuda, S., Matsuoka, A., Shinohara, I.   +14 more
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Outer radiation belt and inner magnetospheric response to sheath regions of coronal mass ejections: a statistical analysis [PDF]

Annales Geophysicae, 2020
The energetic electron content in the Van Allen radiation belts surrounding the Earth can vary dramatically at several timescales, and these strong electron fluxes present a hazard for spacecraft traversing the belts.
M. M. H. Kalliokoski, E. K. J. Kilpua, A. Osmane, D. L. Turner, A. N. Jaynes, L. Turc, H. George, M. Palmroth, M. Palmroth   +8 more
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Simulated magnetopause losses and Van Allen Probe flux dropouts [PDF]

Geophysical Research Letters, 2014
AbstractThree radiation belt flux dropout events seen by the Relativistic Electron Proton Telescope soon after launch of the Van Allen Probes in 2012 (Baker et al., 2013a) have been simulated using the Lyon‐Fedder‐Mobarry MHD code coupled to the Rice Convection Model, driven by measured upstream solar wind parameters.
Hudson, M.K., Baker, D.N., Goldstein, J., Kress, B.T., Paral, J., Toffoletto, F.R., Wiltberger, M.   +6 more
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An Empirical Model of the Equatorial Electron Pitch Angle Distributions in Earth's Outer Radiation Belt

Space Weather, 2022
In this study, we present an empirical model of the equatorial electron pitch angle distributions (PADs) in the outer radiation belt based on the full data set collected by the Magnetic Electron Ion Spectrometer (MagEIS) instrument onboard the Van Allen ...
Artem Smirnov, Yuri Y. Shprits, Hayley Allison, Nikita Aseev, Alexander Drozdov, Peter Kollmann, Dedong Wang, Anthony Saikin   +7 more
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