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Open AccessJournal ArticleDOI

The Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) on RBSP

TLDR
The Electric and Magnetic Field Instrument and Integrated Science (EMFISIS) investigation on the NASA Radiation Belt Storm Probes (now named the Van Allen Probes) mission provides key wave and very low frequency magnetic field measurements to understand radiation belt acceleration, loss, and transport.
Abstract
The Electric and Magnetic Field Instrument and Integrated Science (EMFISIS) investigation on the NASA Radiation Belt Storm Probes (now named the Van Allen Probes) mission provides key wave and very low frequency magnetic field measurements to understand radiation belt acceleration, loss, and transport. The key science objectives and the contribution that EMFISIS makes to providing measurements as well as theory and modeling are described. The key components of the instruments suite, both electronics and sensors, including key functional parameters, calibration, and performance, demonstrate that EMFISIS provides the needed measurements for the science of the RBSP mission. The EMFISIS operational modes and data products, along with online availability and data tools provide the radiation belt science community with one the most complete sets of data ever collected.

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Journal ArticleDOI

Lower hybrid frequency range waves generated by ion polarization drift due to electromagnetic ion cyclotron waves: Analysis of an event observed by the Van Allen Probe B

TL;DR: In this article, a wave event that occurred near noon between 07:03 and 07:08 UT on 23 February 2014 detected by the Van Allen Probes B spacecraft, where waves in the lower hybrid frequency range (LHFR) and electromagnetic ion cyclotron (EMIC) waves are observed to be highly correlated, with Pearson correlation coefficient of approximately 0.86.
Dissertation

Experimental evidence and properties of EMIC wave driven electron precipitation

TL;DR: In this paper, a 17-year database of proton precipitation-associated relativistic electron precipitation events detected by the POES satellite constellation, believed to be driven by interactions with electromagnetic ion cyclotron (EMIC) waves was investigated.

Exclusion principle for very oblique and parallel lower band chorus waves

TL;DR: In this article, the exclusion principle for very oblique and parallel lower band chorus waves is proposed based on in situ measurements and tested in particle simulations, and selected spacecraft observations have confirmed the main aspects of the proposed exclusion scenario.
Journal ArticleDOI

Different Sporadic‐E (Es) Layer Types Development During the August 2018 Geomagnetic Storm: Evidence of Auroral Type (Es <sub>a</sub> ) Over the SAMA Region

TL;DR: In this article , the role of neutral winds and electric fields as physical processes responsible for the generation of sporadic-E (Es) layers is investigated over five Digisonde stations located inside (Santa Maria and Cachoeira Paulista), boundary (São Luís), and outside (Millstone Hill and Port Stanley) the South American Magnetic Anomaly (SAMA) in the course of the 25 August 2018, geomagnetic storm.
References
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Regular Article: A Solution-Adaptive Upwind Scheme for Ideal Magnetohydrodynamics

TL;DR: In this article, the authors present a computational scheme for compressible magnetohydrodynamics (MHD) based on the same elements that make up many modern compressible gas dynamics codes: high-resolution upwinding based on an approximate Riemann solver for MHD and limited reconstruction; an optimally smoothing multi-stage time-stepping scheme; and solution-adaptive refinement and coarsening.
Journal ArticleDOI

Relativistic theory of wave‐particle resonant diffusion with application to electron acceleration in the magnetosphere

TL;DR: In this paper, a model was proposed to account for the observed variations in the flux and pitch angle distribution of relativistic electrons during geomagnetic storms by combining pitch angle scattering by intense EMIC waves and energy diffusion during cyclotron resonant interaction with whistler mode chorus outside the plasmasphere.
Journal ArticleDOI

Pitch-angle diffusion of radiation belt electrons within the plasmasphere.

TL;DR: In this paper, the formation of the quiet-time electron slot, which divides the radiation belt electrons into an inner and an outer zone, was investigated. But the results were limited to the inner radiation zone.
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