The radiation belts and ring current: The relationship between Dst and relativistic electron phase space density

M. Grande*, M. Carter, C. H. Perry

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

1 Citation (SciVal)

Abstract

We briefly review the radiation belts, before moving on to a more detailed examination of the relationship between the Disturbance Storm Time Index (Dst) and relativistic electron flux. We show that there is a strong correlation between the growth phase of storms, as represented by Dst, and dropouts in electron flux. Recovery is accompanied by growth of the electron flux. We calculate Electron Phase Space Density (PSD) as a function of adiabatic invariants using electron particle measurements from the Imaging Electron Sensor (IES) and the High Sensitivity Telescope (HIST) on the CEPPAD experiment onboard POLAR. We present the time history of the phase space density through the year 1998 as L-sorted plots and look in detail at the May 98 storm. Comparison with the Tsyganenko 96 magnetic field model prediction for the last closed field line suggests that the loss of electrons may be directly caused by the opening of drift shells.

Original languageEnglish
Title of host publication2nd Solar Cycle and Space Weather Conference, Vico Equense
PublisherElsevier
Pages391-398
Number of pages8
Edition477
Publication statusPublished - Mar 2002
Event2nd Solar Cycle and Space Weather Conference - Vico Equense, Italy
Duration: 24 Sept 200129 Sept 2001

Publication series

NameEuropean Space Agency, (Special Publication) ESA SP
ISSN (Print)0379-6566

Conference

Conference2nd Solar Cycle and Space Weather Conference
Country/TerritoryItaly
CityVico Equense
Period24 Sept 200129 Sept 2001

Fingerprint

Dive into the research topics of 'The radiation belts and ring current: The relationship between Dst and relativistic electron phase space density'. Together they form a unique fingerprint.

Cite this