skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Radiation belt seed population and its association with the relativistic electron dynamics: A statistical study: Radiation Belt Seed Population

Abstract

Using the Van Allen Probes data, we study the radiation belt seed population and it associated with the relativistic electron dynamics during 74 geomagnetic storm events. Based on the flux changes of 1 MeV electrons before and after the storm peak, these storm events are divided into two groups of “non-preconditioned” and “preconditioned”. The statistical study shows that the storm intensity is of significant importance for the distribution of the seed population (336 keV electrons) in the outer radiation belt. However, substorm intensity can also be important to the evolution of the seed population for some geomagnetic storm events. For non-preconditioned storm events, the correlation between the peak fluxes and their L-shell locations of the seed population and relativistic electrons (592 keV, 1.0 MeV, 1.8 MeV, and 2.1 MeV) is consistent with the energy-dependent dynamic processes in the outer radiation belt. For preconditioned storm events, the correlation between the features of the seed population and relativistic electrons is not fully consistent with the energy-dependent processes. It is suggested that the good correlation between the radiation belt seed population and ≤1.0 MeV electrons contributes to the prediction of the evolution of ≤1.0 MeV electrons in the Earth’s outer radiation belt duringmore » periods of geomagnetic storms.« less

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [8]
  1. Shandong Univ., Jinan (China); Chinese Academy of Sciences (CAS), Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China)
  3. Wuhan Univ. (China)
  4. Univ. of New Hampshire, Durham, NH (United States)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Univ. of Science and Technology of China, Hefei (China)
  7. Univ. of Colorado, Boulder, CO (United States)
  8. The Aerospace Corporation, Los Angeles California USA
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
National Aeronautic and Space Administration (NASA); USDOE
OSTI Identifier:
1402639
Report Number(s):
LA-UR-17-24828
Journal ID: ISSN 2169-9380; TRN: US1703017
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Geophysical Research. Space Physics
Additional Journal Information:
Journal Volume: 122; Journal Issue: 5; Journal ID: ISSN 2169-9380
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Heliospheric and Magnetospheric Physics

Citation Formats

Tang, C. L., Wang, Y. X., Ni, B., Zhang, J. -C., Reeves, G. D., Su, Z. P., Baker, D. N., Spence, H. E., Funsten, H. O., and Blake, J. B.. Radiation belt seed population and its association with the relativistic electron dynamics: A statistical study: Radiation Belt Seed Population. United States: N. p., 2017. Web. doi:10.1002/2017JA023905.
Tang, C. L., Wang, Y. X., Ni, B., Zhang, J. -C., Reeves, G. D., Su, Z. P., Baker, D. N., Spence, H. E., Funsten, H. O., & Blake, J. B.. Radiation belt seed population and its association with the relativistic electron dynamics: A statistical study: Radiation Belt Seed Population. United States. doi:10.1002/2017JA023905.
Tang, C. L., Wang, Y. X., Ni, B., Zhang, J. -C., Reeves, G. D., Su, Z. P., Baker, D. N., Spence, H. E., Funsten, H. O., and Blake, J. B.. Fri . "Radiation belt seed population and its association with the relativistic electron dynamics: A statistical study: Radiation Belt Seed Population". United States. doi:10.1002/2017JA023905. https://www.osti.gov/servlets/purl/1402639.
@article{osti_1402639,
title = {Radiation belt seed population and its association with the relativistic electron dynamics: A statistical study: Radiation Belt Seed Population},
author = {Tang, C. L. and Wang, Y. X. and Ni, B. and Zhang, J. -C. and Reeves, G. D. and Su, Z. P. and Baker, D. N. and Spence, H. E. and Funsten, H. O. and Blake, J. B.},
abstractNote = {Using the Van Allen Probes data, we study the radiation belt seed population and it associated with the relativistic electron dynamics during 74 geomagnetic storm events. Based on the flux changes of 1 MeV electrons before and after the storm peak, these storm events are divided into two groups of “non-preconditioned” and “preconditioned”. The statistical study shows that the storm intensity is of significant importance for the distribution of the seed population (336 keV electrons) in the outer radiation belt. However, substorm intensity can also be important to the evolution of the seed population for some geomagnetic storm events. For non-preconditioned storm events, the correlation between the peak fluxes and their L-shell locations of the seed population and relativistic electrons (592 keV, 1.0 MeV, 1.8 MeV, and 2.1 MeV) is consistent with the energy-dependent dynamic processes in the outer radiation belt. For preconditioned storm events, the correlation between the features of the seed population and relativistic electrons is not fully consistent with the energy-dependent processes. It is suggested that the good correlation between the radiation belt seed population and ≤1.0 MeV electrons contributes to the prediction of the evolution of ≤1.0 MeV electrons in the Earth’s outer radiation belt during periods of geomagnetic storms.},
doi = {10.1002/2017JA023905},
journal = {Journal of Geophysical Research. Space Physics},
number = 5,
volume = 122,
place = {United States},
year = {Fri May 19 00:00:00 EDT 2017},
month = {Fri May 19 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Save / Share: