CRRES observations of stormtime ring current ion composition

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.51524· OSTI ID:451685

Roeder, J L; Fennell, J F; Chen, M W ^[1]; Grande, M ^[2]; Livi, S ^[3]; Schulz, M ^[4]

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1. Space and Environment Technology Center, The Aerospace Corporation, Los Angeles, California (United States)
2. Rutherford Appleton Laboratories, Chilton-Didcot, (Great Britain)
3. Max-Planck-Institute for Aeronomy, Katlenburg-Lindau (Germany)
4. Lockheed Palo Alto Research Laboratories, Palo Alto, California (United States)

The Magnetospheric Ion Composition Spectrometer onboard the CRRES spacecraft provided mass and charge state composition data for positive ions in the energy-per-charge range 1{endash}426 keV/e. The CRRES data is compared to the AMPTE/CCE observations during a moderately large geomagnetic storm on 4 June 1991. The results are compared to observations of large storms by CRRES and by the AMPTE/CCE spacecraft. The CRRES data show that oxygen ions formed 29{percent} of the total measured ion energy density at {ital L}=3{endash}5 during the storm recovery phase. This result implies that domination of the plasma by oxygen ions may not be necessary to produce the observed rapid initial recovery of the {ital D}st magnetic index. A preliminary test of the Dessler-Parker-Sckopke relation between the ion energy and the global magnetic perturbation shows that the observed particle fluxes during the 4 June 1991 storm could account for only 40{endash}70{percent} of the variation of {ital D}st. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 451685
• Report Number(s): CONF-9408182--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 383; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHARGE STATES
EARTH MAGNETOSPHERE
FLUX DENSITY
ION DETECTION
MAGNETIC STORMS
MASS SPECTRA
OXYGEN IONS
RING CURRENTS
SPACE VEHICLES