Results 11 to 20 of about 173 (148)

Fine structure of plasmaspheric hiss [PDF]

Journal of Geophysical Research: Space Physics, 2014
AbstractPlasmaspheric hiss has been widely regarded as a broadband, structureless, incoherent emission. In this study, by examining burst‐mode vector waveform data from the Electric and Magnetic Field Instrument Suite and Integrated Science instrument on the Van Allen Probes mission, we show that plasmaspheric hiss is a coherent emission with complex ...
Danny Summers, Yoshiharu Omura, Satoko Nakamura, Craig A. Kletzing   +3 more
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Origins of plasmaspheric hiss [PDF]

Journal of Geophysical Research: Space Physics, 2006
Plasmaspheric hiss is an electromagnetic wave emission responsible for electron loss from the radiation belts, particularly in the slot region (2 < L < 3). There are two leading theories for the origin of plasmaspheric hiss: in situ amplification of wave turbulence in space and lightning‐generated whistlers.
Meredith, Nigel P., Horne, Richard B., Clilverd, Mark A., Horsfall, David, Thorne, Richard M., Anderson, Roger R.   +5 more
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Plasmaspheric Hiss: Coherent and Intense [PDF]

Journal of Geophysical Research: Space Physics, 2018
AbstractIntense ~300‐Hz to 1.0‐kHz plasmaspheric hiss was studied using Polar plasma wave data. It is found that the waves are coherent in all local time sectors with the wave coherency occurring in approximately three‐ to five‐wave cycle packets. The plasmaspheric hiss in the dawn and local noon time sector are found to be substorm (AE*) and storm ...
Bruce T. Tsurutani, Sang A. Park, Barbara J. Falkowski, Gurbax S. Lakhina, Jolene S. Pickett, Jacob Bortnik, George Hospodarsky, Ondrej Santolik, Michel Parrot, Pierre Henri, Rajkumar Hajra   +10 more
openaire   +5 more sources

Global Model of Plasmaspheric Hiss from Multiple Satellite Observations [PDF]

2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018
AbstractWe present a global model of plasmaspheric hiss, using data from eight satellites, extending the coverage and improving the statistics of existing models. We use geomagnetic activity dependent templates to separate plasmaspheric hiss from chorus.
Nigel P. Meredith, Richard B. Horne, Tobias Kersten, Wen Li, Jacob Bortnik, Angélica Sicard, Keith H. Yearby   +6 more
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Abrupt Disappearance of Plasmaspheric Hiss Inside the Magnetic Dip

Geophysical Research Letters
Plasmaspheric hiss plays an important role in radiation belt electron dynamics, and its excitation and propagation have long attracted attention. During a substorm, Van Allen Probe B observed the disappearance of plasmaspheric hiss at the magnetic dip ...
Yan Zhuang, Chao Yue, Shan Wang, Haimeng Li, Sibo Xu, Xu‐Zhi Zhou, Qiu‐Gang Zong   +6 more
doaj   +2 more sources

Disappearance of plasmaspheric hiss following interplanetary shock [PDF]

Geophysical Research Letters, 2015
AbstractPlasmaspheric 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. We here give the first report on the shock‐induced disappearance of plasmaspheric hiss observed by the Van Allen Probes on 8 October 2013. This special
Zhenpeng Su, Hui Zhu, Fuliang Xiao, Huinan Zheng, Yuming Wang, Chao Shen, Min Zhang, Shui Wang, C. A. Kletzing, W. S. Kurth, G. B. Hospodarsky, H. E. Spence, G. D. Reeves, H. O. Funsten, J. B. Blake, D. N. Baker, J. R. Wygant   +16 more
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Identifying the source region of plasmaspheric hiss [PDF]

Geophysical Research Letters, 2015
AbstractThe 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. The hiss, made of whistler mode waves, exists for most of the time in the plasmasphere and is believed to control the radiation belt surrounding the Earth which ...
Harri Laakso, Ondrej Santolik, Richard Horne, Ivana Kolmasová, Philippe Escoubet, Arnaud Masson, Matthew Taylor   +6 more
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Statistical Properties of Plasmaspheric Hiss From Van Allen Probes Observations [PDF]

Journal of Geophysical Research: Space Physics, 2018
AbstractVan Allen Probes observations are used to statistically investigate plasmaspheric hiss wave properties. This analysis shows that the wave normal direction of plasmaspheric hiss is predominantly field aligned at larger L shells, with a bimodal distribution, consisting of a near‐field aligned and a highly oblique component, becoming apparent at ...
D. P. Hartley, C. A. Kletzing, O. Santolík, L. Chen, R. B. Horne   +4 more
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Variation in Plasmaspheric Hiss Wave Power With Plasma Density

Geophysical Research Letters, 2018
AbstractPlasmaspheric hiss waves are commonly observed in the inner magnetosphere. These waves efficiently scatter electrons, facilitating their precipitation into the atmosphere. Predictive inner magnetosphere simulations often model hiss waves using parameterized empirical maps of observed hiss power. These maps nearly always include parameterization
David M. Malaspina, Jean‐Francois Ripoll, Xiangning Chu, George Hospodarsky, John Wygant   +4 more
openaire   +3 more sources

Correlation Between Radiation Enhancements at Aviation Altitudes and Energetic Precipitating Electrons

Space Weather
The campaign of Automated Radiation Measurements for Aerospace Safety (ARMAS) has revealed that relativistic electron precipitation (REP) from the radiation belts can significantly enhance the radiation environment at aviation altitudes, in addition to ...
Wei Xu, Haotian Xu, Xudong Gu, Binbin Ni, Jingyuan Feng, Joshua Pettit, Hilde Nesse, W. Kent Tobiska, Wen Cheng, Wenchen Ma, Yudi Pan, Jacob Bortnik   +11 more
doaj   +2 more sources