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Title: Dependence of EMIC wave parameters during quiet, geomagnetic storm, and geomagnetic storm phase times

Journal Article · · Journal of Geophysical Research. Space Physics
DOI:https://doi.org/10.1002/2016JA022694· OSTI ID:1407895
 [1];  [2]; ORCiD logo [3];  [4];  [5]
  1. Dartmouth College, Hanover, NH (United States). Dept. of Physics and Astronomy; NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  2. Univ. of Newcastle, Callaghan, NSW (Australia). Centre for Space Physics
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of Colorado, Boulder, CO (United States). Lab. for Atmospheric and Space Physics (LASP)
  5. Rice Univ., Houston, TX (United States). Dept. of Physics and Astronomy
+ Show Author Affiliations

As electromagnetic ion cyclotron (EMIC) waves may play an important role in radiation belt dynamics, there has been a push to better include them into global simulations. How to best include EMIC wave effects is still an open question. Recently many studies have attempted to parameterize EMIC waves and their characteristics by geomagnetic indices. However, this does not fully take into account important physics related to the phase of a geomagnetic storm. In this paper we first consider how EMIC wave occurrence varies with the phase of a geomagnetic storm and the SYM-H, AE, and Kp indices. Here we show that the storm phase plays an important role in the occurrence probability of EMIC waves. The occurrence rates for a given value of a geomagnetic index change based on the geomagnetic condition. Then in this study we also describe the typical plasma and wave parameters observed in L and magnetic local time for quiet, storm, and storm phase. These results are given in a tabular format in the supporting information so that more accurate statistics of EMIC wave parameters can be incorporated into modeling efforts.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1407895
Report Number(s):
LA-UR-17-25036; TRN: US1703061
Journal Information:
Journal of Geophysical Research. Space Physics, Vol. 121, Issue 7; ISSN 2169-9380
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 36 works
Citation information provided by
Web of Science

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Cited By (4)

Wavenumber Analysis of EMIC Waves journal June 2019
Properties of Localized Precipitation of Energetic Protons Equatorward of the Isotropic Boundary journal October 2019
Storm Time EMIC Waves Observed by Swarm and Van Allen Probe Satellites journal January 2019
On the Contribution of EMIC Waves to the Reconfiguration of the Relativistic Electron Butterfly Pitch Angle Distribution Shape on 2014 September 12—A Case Study journal February 2019

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
58 GEOSCIENCES
Heliospheric and Magnetospheric Physics
electromagnetic ion cyclotron waves
geomagnetic storms
wave parameters
CRRES satellite
ULF waves
geomagnetic index