High-time resolution radar observations of high-latitude flows during an isolated substorm

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High-time resolution radar observations of high-latitude flows during an isolated substorm. / Wild, J.A.; Yeoman, T.K.; Davies, J.A.
2000. Proceedings of the SuperDARN Workshop.

Research output: Contribution to conference - Without ISBN/ISSN › Other › peer-review

Bibtex

@conference{f7feb7f39f874bab953c7ab8cc68c979,

title = "High-time resolution radar observations of high-latitude flows during an isolated substorm",

abstract = "High-time resolution CUTLASS observations and ground-based magnetometers have been employed to study the occurrence of vortical flow structures propagating through the high-latitude ionosphere during magnetospheric substorms. Fast-moving flow vortices (~800 m/s) associated with Hall currents flowing around upward directed feld-aligned currents are frequently observed propagating at high speed (~1 km/s) azimuthally away from the region of the ionosphere associated with the location of the substorm expansion phase onset. Furthermore, a statistical analysis drawn from over 1000 h of high-time resolution, nightside radar data has enabled the characterisation of the bulk properties of these vortical flow systems. Their occurrence with respect to substorm phase has been investigated and a possible generation mechanism has been suggested.",

author = "J.A. Wild and T.K. Yeoman and J.A. Davies",

year = "2000",

language = "English",

note = "Proceedings of the SuperDARN Workshop ; Conference date: 01-01-1900",

}

RIS

TY - CONF

T1 - High-time resolution radar observations of high-latitude flows during an isolated substorm

AU - Wild, J.A.

AU - Yeoman, T.K.

AU - Davies, J.A.

PY - 2000

Y1 - 2000

N2 - High-time resolution CUTLASS observations and ground-based magnetometers have been employed to study the occurrence of vortical flow structures propagating through the high-latitude ionosphere during magnetospheric substorms. Fast-moving flow vortices (~800 m/s) associated with Hall currents flowing around upward directed feld-aligned currents are frequently observed propagating at high speed (~1 km/s) azimuthally away from the region of the ionosphere associated with the location of the substorm expansion phase onset. Furthermore, a statistical analysis drawn from over 1000 h of high-time resolution, nightside radar data has enabled the characterisation of the bulk properties of these vortical flow systems. Their occurrence with respect to substorm phase has been investigated and a possible generation mechanism has been suggested.

AB - High-time resolution CUTLASS observations and ground-based magnetometers have been employed to study the occurrence of vortical flow structures propagating through the high-latitude ionosphere during magnetospheric substorms. Fast-moving flow vortices (~800 m/s) associated with Hall currents flowing around upward directed feld-aligned currents are frequently observed propagating at high speed (~1 km/s) azimuthally away from the region of the ionosphere associated with the location of the substorm expansion phase onset. Furthermore, a statistical analysis drawn from over 1000 h of high-time resolution, nightside radar data has enabled the characterisation of the bulk properties of these vortical flow systems. Their occurrence with respect to substorm phase has been investigated and a possible generation mechanism has been suggested.

M3 - Other

T2 - Proceedings of the SuperDARN Workshop

Y2 - 1 January 1900

ER -

Research