Testing electric field models using ring current ion energy spectra from the Equator-S ion composition (ESIC) instrument

Kistler, L. M.; Klecker, B.; Jordanova, V. K.; Möbius, E.; Popecki, M. A.; Patel, D.; Sauvaud, J. A.; Rème, H.; Lellis, A. M. Di; Korth, A.; McCarthy, Michael; Cerulli, R.; Cattaneo, M. B. Bavassano; Eliasson, L.; Carlson, C. W.; Parks, G. K.; Paschmann, G.; Baumjohann, W.; Haerendel, G.

doi:10.1007/s00585-999-1611-2

Cited by 41 publications

(37 citation statements)

References 13 publications

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“…The actual calculation is performed in two steps: (a) we first trace the observed proton distribution backward using the phase-space mapping method (e.g., Kistler et al, 1999;Ebihara et al, 2008); (b) we then perform a forward drift simulation assuming a boundary condition that is estimated from the back-tracing result. The backward tracing is necessary to estimate a proper boundary condition.…”

Section: Simulation Methodsmentioning

confidence: 99%

Ion drift simulation of sudden appearance of sub-keV structured ions in the inner magnetosphere

et al. 2014

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Abstract. Energy-latitude dispersed structured sub-keV ions in the inner magnetosphere often show significant development or intensification (by more than factor of 3) within 1-2 h near noon or afternoon where the azimuthal ion drift velocity at the sub-keV range is expected to be near zero.To examine whether such sudden appearances in the dayside can be explained by the drift motion of ions that are formed during substorm-related injections, we numerically simulated two such examples, one at noon and the other in the afternoon, based on the ion drift model. For both cases, the ion drift model with finite duration of proton source in the nightside can explain the observed large inbound-outbound differences in the sub-keV proton population without any new sources. Ion drift motion can thus cause rapid changes of complicated ion populations, at remote places from the source a long time after the substorm activities.

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Section: Simulation Methodsmentioning

confidence: 99%

Ion drift simulation of sudden appearance of sub-keV structured ions in the inner magnetosphere

et al. 2014

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“…Substorm dipolarization may also play an important additional role. Inner magnetospheric measurements from the CODIF instrument on Cluster (Reme et al, 1997) and on ESIC on Equator-S (e.g., Kistler et al, 1999) have revealed a wealth of dynamical behavior including anisotropic (pancake) H + distributions at low-L, as well as the importance and existence of upflowing fieldaligned O + at lower energies. However, the detailed behavior is not fully understood.…”

Section: Dynamical Behavior Of the Ring Current In The Inner Magnetosmentioning

confidence: 98%

The outer radiation belt injection, transport, acceleration and loss satellite (ORBITALS): A canadian small satellite mission for ILWS

Mann

Balmain

Blake

et al. 2006

Advances in Space Research

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“…Most of the full‐resolution data were specially calibrated for each interval. In addition, plasma ion data taken by the ion composition instrument, ESIC [ Kistler et al , 1999], operational after 20 January 1998, were used where available to complement the results of the magnetic field analysis. Upstream solar wind conditions were derived from Wind data.…”

Section: Data Setmentioning

confidence: 99%

Equator‐S observations of ion cyclotron waves outside the dawnside magnetopause

Dunlop

Lucek

Kistler

et al. 2002

Journal of Geophysical Research: Space Physics

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[1] The Equator-S satellite often remained close to the magnetopause for long periods on the morningside of the magnetosphere. The combination of this coverage, slow magnetopause crossings ($1-2 km/s), and high-resolution (64-128 Hz) magnetic field data allows very close inspection of the region adjacent to the magnetopause. Strong signatures consistent with mirror-like structures were observed on a large minority (30%) of the orbits. For the majority of these passes the signatures start close, or adjacent, to the magnetopause, despite a variety of upstream solar wind conditions, suggesting that in most cases the plasma depletion layer (PDL) was either narrow or absent. Without extensive plasma data the PDL cannot be observed directly. Using high-resolution magnetic field data, however, we have surveyed the occurrence of electromagnetic ion cyclotron (EMIC) waves in the magnetosheath, which have been used by previous authors as a proxy for PDL occurrence. Only a very small number (11) of the 130 documented crossings showed the presence of an ion cyclotron signature in the adjacent magnetosheath, supporting the hypothesis that the PDL is rare in this region. Two of these crossings had proton number density data available, although the wave signatures were exceptionally weak and short-lived. In these cases we find no clear evidence for a region of plasma depletion, suggesting that the relationship between a PDL and short bursts of EMIC wave occurrence may not be straightforward.

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Testing electric field models using ring current ion energy spectra from the Equator-S ion composition (ESIC) instrument

Cited by 41 publications

References 13 publications

Ion drift simulation of sudden appearance of sub-keV structured ions in the inner magnetosphere

Ion drift simulation of sudden appearance of sub-keV structured ions in the inner magnetosphere

The outer radiation belt injection, transport, acceleration and loss satellite (ORBITALS): A canadian small satellite mission for ILWS

Equator‐S observations of ion cyclotron waves outside the dawnside magnetopause

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