Results 21 to 30 of about 30,333 (190)

Precipitation of Radiation Belt Electrons by EMIC Waves With Conjugated Observations of NOAA and Van Allen Satellites

Geophysical Research Letters, 2018
In this letter, we present unique conjugated satellite observations of MeV relativistic electron precipitation caused by electromagnetic ion cyclotron (EMIC) waves. On the outer boundary of the plasmasphere, the Van Allen probe observed EMIC waves.
Zhigang Yuan, Kun Liu, Xiongdong Yu, Fei Yao, Shiyong Huang, Dedong Wang, Zhihai Ouyang   +6 more
doaj   +1 more source

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

Links of the Plasmapause With Other Boundary Layers of the Magnetosphere: Ionospheric Convection, Radiation Belt Boundaries, Auroral Oval

Frontiers in Astronomy and Space Sciences, 2021
The plasmapause marks the limit of the plasmasphere and is characterized by a sudden change in plasma density. This can influence the other regions of the magnetosphere, including due to different waves circulating inside and outside the plasmasphere. In
V. Pierrard, V. Pierrard, E. Botek, J.-F. Ripoll, J.-F. Ripoll, S. A. Thaller, M. B. Moldwin, M. Ruohoniemi, G. Reeves   +8 more
doaj   +1 more source

Nonstorm time dynamics of electron radiation belts observed by the Van Allen Probes [PDF]

, 2014
Storm time electron radiation belt dynamics have been widely investigated for many years. Here we present a rarely reported nonstorm time event of electron radiation belt evolution observed by the Van Allen Probes during 21-24 February 2013.
Albert, Baker, Baker, Blake, Blake, Brautigam, C. A. Kletzing, Carpenter, Chao Shen, Chen, D. N. Baker, Elkington, Fuliang Xiao, G. B. Hospodarsky, G. D. Reeves, Green, H. E. Spence, H. O. Funsten, Horne, Horne, Horne, Horne, Hudson, Hui Zhu, Huinan Zheng, J. B. Blake, Kletzing, Li, Li, Mauk, Meredith, Min Zhang, Ni, Park, Reeves, Reeves, Reeves, Shprits, Shprits, Shui Wang, Spence, Su, Su, Summers, Summers, Summers, Thorne, Thorne, Thorne, Thorne, W. S. Kurth, Xiao, Yuming Wang, Zhaoguo He, Zhenpeng Su, Zong   +55 more
core   +3 more sources

Specifying High‐Altitude Electrons Using Low‐Altitude LEO Systems: The SHELLS Model

Space Weather, 2020
We describe an artificial neural network model of the near‐Earth space radiation environment. The geomagnetic activity index Kp and low‐earth‐orbit (LEO) electron flux measurements from the National Oceanic and Atmospheric Administration Polar‐orbiting ...
S. G. Claudepierre, T. P. O'Brien
doaj   +1 more source

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

Competing source and loss mechanisms due to wave-particle interactions in Earth’s outer radiation belt during the 30 September to 3 October 2012 geomagnetic storm [PDF]

, 2014
Drastic variations of Earth’s outer radiation belt electrons ultimately result from various competing source, loss, and transport processes, to which wave-particle interactions are critically important.
Angelopoulos, V., Baker, D. N., Blake, J. B., Bortnik, J., Claudepierre, S., Henderson, M. G., Huang, Chia-Lin L., Kletzing, C A., Kurth, W. S., Li, W., Ma, Q., Mann, I. R., Morley, S. K., Ni, B., Reeves, Geoffrey, Rodriguez, J. V., Spence, Harlan E., Thorne, R. M., Turner, D. L., Usanova, M.   +19 more
core   +3 more sources

Wave acceleration of electrons in the Van Allen radiation belts

Nature, 2005
The Van Allen radiation belts are two regions encircling the Earth in which energetic charged particles are trapped inside the Earth's magnetic field. Their properties vary according to solar activity and they represent a hazard to satellites and humans in space.
Horne, Richard B., Thorne, Richard M., Shprits, Yuri Y., Meredith, Nigel P., Glauert, Sarah A., Smith, Andy J., Kanekal, Shrikanth G., Baker, Daniel N., Engebretson, Mark J., Posch, Jennifer L., Spasojevic, Maria, Inan, Umran S., Pickett, Jolene S., Decreau, Pierrette M.E.   +13 more
openaire   +7 more sources

Reconstruction of the Radiation Belts for Solar Cycles 17–24 (1933–2017)

Space Weather, 2021
We present a reconstruction of the dynamics of the radiation belts from solar cycles 17 to 24 which allows us to study how radiation belt activity has varied between the different solar cycles.
A. A. Saikin, Y. Y. Shprits, A. Y. Drozdov, D. A. Landis, I. S. Zhelavskaya, S. Cervantes   +5 more
doaj   +1 more source

Science Goals and Overview of the Radiation Belt Storm Probes (RBSP) Energetic Particle, Composition, and Thermal Plasma (ECT) Suite on NASA’s Van Allen Probes Mission [PDF]

, 2013
The Radiation Belt Storm Probes (RBSP)-Energetic Particle, Composition, and Thermal Plasma (ECT) suite contains an innovative complement of particle instruments to ensure the highest quality measurements ever made in the inner magnetosphere and radiation
Baker, D. N., Blake, J. B., Bolton, M., Bourdarie, S., Chan, A. A., Claudepierre, S. G., Clemmons, J. H., Cravens, J. P., Elkington, S. R., Fennell, J. F., Reeves, G. D., Spence, Harlan E.   +11 more
core   +2 more sources