Results 31 to 40 of about 129,844 (334)

Radiation Belt Daily Average Electron Flux Model (RB‐Daily‐E) From the Seven‐Year Van Allen Probes Mission and Its Application to Interpret GPS On‐Orbit Solar Array Degradation

Space Weather, 2022
We use NASA's Van Allen Probes data to build a 3‐dimensional Radiation Belt Daily Average Electron flux model (RB‐Daily‐E) covering 25 differential energies (33–7,700 keV), 17 pitch angles, and a variable number of L shells from 2 to 7. RB‐Daily‐E can be
Christine Gabrielse, Justin H. Lee, Seth Claudepierre, Don Walker, Paul O’Brien, James Roeder, Yao Lao, Jann Grovogui, Drew L. Turner, Andrei Runov, Alexander Boyd, Joseph Fennell, J. Bernard Blake, Kevin Lopez, Yoshizumi Miyoshi, Kunihiro Keika, Nana Higashio, Iku Shinohara, Shun Imajo, Satoshi Kurita, Takefumi Mitani   +20 more
doaj   +1 more source

An empirical model of the global distribution of plasmaspheric hiss based on Van Allen Probes EMFISIS measurements

Earth and Planetary Physics, 2020
Using wave measurements from the EMFISIS instrument onboard Van Allen Probes, we investigate statistically the spatial distributions of the intensity of plasmaspheric hiss waves.
JingZhi Wang, Qi Zhu, XuDong Gu, Song Fu, JianGuang Guo, XiaoXin Zhang, Juan Yi, YingJie Guo, BinBin Ni, Zheng Xiang   +9 more
doaj   +1 more source

Dynamics of the inner electron radiation belt: A review

Earth and Planetary Physics, 2023
The Van Allen radiation belts are an extraordinary science discovery in the Earth magnetosphere and consist of two electron belts. The inner Van Allen belt contains electrons of 10s to 100s keV; the outer belt consists mainly of 0.1−10 MeV electrons ...
YuXuan Li, Chao Yue, Ying Liu, Qiu-Gang Zong, Hong Zou, YuGuang Ye   +5 more
doaj   +1 more source

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
openaire   +2 more sources

Morningside Pi2 Pulsation Observed in Space and on the Ground [PDF]

Journal of Astronomy and Space Sciences, 2015
In this study, we examined a morningside Pi2 pulsation, with a non-substorm signature, that occurred in very quiet geomagnetic conditions (Kp = 0) at 05:38 UT on December 8, 2012, using data obtained by Van Allen Probes A and B (VAP-A and VAP-B ...
Essam Ghamry
doaj   +1 more source

Analysis of plasmaspheric hiss wave amplitudes inferred from low-altitude POES electron data: Technique sensitivity analysis [PDF]

, 2015
A novel technique capable of inferring wave amplitudes from low-altitude electron measurements from the Polar Operational Environmental Satellites (POES) spacecraft has been previously proposed to construct a global dynamic model of chorus and ...
Blake, J. B., Bortnik, J., de Soria-Santacruz, M., Fennell, Joseph F., Hospodarsky, G. B., Kletzing, C A., Kurth, W. S., Li, W., Ma, Q., Ni, B., Reeves, Geoffrey, Spence, Harlan E., Thorne, R. M.   +12 more
core   +3 more sources

Temperature of the plasmasphere from Van Allen Probes HOPE [PDF]

Journal of Geophysical Research: Space Physics, 2017
AbstractWe introduce two novel techniques for estimating temperatures of very low energy space plasmas using, primarily, in situ data from an electrostatic analyzer mounted on a charged and moving spacecraft. The techniques are used to estimate proton temperatures during intervals where the bulk of the ion plasma is well below the energy bandpass of ...
K. J. Genestreti, J. Goldstein, G. D. Corley, W. Farner, L. M. Kistler, B. A. Larsen, C. G. Mouikis, C. Ramnarace, R. M. Skoug, N. E. Turner   +9 more
openaire   +1 more source

On the cause and extent of outer radiation belt losses during the 30 September 2012 dropout event [PDF]

, 2014
On 30 September 2012, a flux dropout occurred throughout Earth\u27s outer electron radiation belt during the main phase of a strong geomagnetic storm.
Angelopoulos, V., Baker, D. N., Blake, J. B., Boyd, A. J., Claudepierre, S., Henderson, M. G., Huang, Chia-Lin L., Li, W., Morley, S. K., Reeves, Geoffrey, Rodriguez, J. V., Spence, Harlan E., Turner, D. L.   +12 more
core   +3 more sources

Gradual diffusion and punctuated phase space density enhancements of highly relativistic electrons: Van Allen Probes observations [PDF]

, 2014
The dual-spacecraft Van Allen Probes mission has provided a new window into mega electron volt (MeV) particle dynamics in the Earth\u27s radiation belts.
A. Boyd, A. Drozdov, A. N. Jaynes, Baker, Baker, Baker, Baker, Baker, Baker, C. A. Kletzing, D. M. Malaspina, D. N. Baker, Foster, G. D. Reeves, H. E. Spence, J. C. Foster, J. F. Fennell, J. R. Wygant, Li, M. G. Henderson, M. K. Hudson, Mauk, Morley, P. J. Erickson, R. M. Thorne, Reeves, Roederer, S. G. Claudepierre, S. G. Kanekal, Schulz, Shprits, Shprits, Thorne, Thorne, Tsyganenko, Turner, Van Allen, Wilken, Wygant, X. Li, Y. Y. Shprits   +40 more
core   +3 more sources

Statistical study and corresponding evolution of plasmaspheric plumes under different levels of geomagnetic storms [PDF]

Annales Geophysicae, 2022
Using observations of Van Allen Probes, we present a statistical study of plasmaspheric plumes in the inner magnetosphere. Plasmaspheric plumes tend to occur during the recovery phase of geomagnetic storms.
H. Li, T. Fu, R. Tang, R. Tang, Z. Yuan, Z. Yang, Z. Ouyang, X. Deng   +7 more
doaj   +1 more source