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Effect of solar wind pressure pulses on the size and strength of the auroral oval
[1] It has recently been found that solar wind dynamic pressure changes can dramatically affect the precipitation of magnetospheric particles on the high-latitude ionosphere. We have examined theExpand
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Magnetometer array for cusp and cleft studies observations of the spatial extent of broadband ULF magnetic pulsations at cusp/cleft latitudes
We have used magnetometer data from 10 locations in Arctic Canada and Greenland, covering over 5 hours in magnetic local time at magnetic latitudes from 75° to 79°, to characterize the daysideExpand
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Two‐dimensional structure of auroral poleward boundary intensifications
[1] We investigate the two-dimensional structure of auroral poleward boundary intensifications (PBIs). PBIs are a nightside auroral intensification that has been studied primarily with ground-basedExpand
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Auroral poleward boundary intensifications (PBIs): Their two‐dimensional structure and associated dynamics in the plasma sheet
[1] Auroral poleward boundary intensifications (PBIs) are typically seen both in ground meridian scanning photometers (MSP) and in ground and spacecraft auroral images. They appear as a localizedExpand
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The auroral signature of earthward flow bursts observed in the magnetotail
We present direct evidence that transient Earthward flow bursts in the magnetotail can produce an observable signature in the optical aurora. This signature is north-south aligned auroral structuresExpand
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Enhanced solar wind geoeffectiveness after a sudden increase in dynamic pressure during southward IMF orientation
[1] It is well known that a persistent southward Interplanetary Magnetic Field (IMF) produces increased geomagnetic activity. It has recently been shown that a sudden increase in solar wind pressureExpand
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Conjugate observations of traveling convection vortices: The field-aligned current system
[1] Analysis of a single traveling convection vortex (TCV) event that combines magnetometer, auroral imager, and riometer observations from conjugate hemispheres provides a complete view of theExpand
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The Effect of the January 10, 1997, Pressure Pulse on the Magnetosphere‐Ionosphere Current System
On January 10, 1997, a strong pressure pulse, observed by the WIND spacecraft between 1030 and 1055 UT, hit the magnetosphere after about a one-half hour delay, causing the strengthening and wideningExpand
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Magnetospheric reconnection driven by solar wind pressure fronts
Abstract. Recent work has shown that solar wind dynamic pressure changes can have a dramatic effect on the particle precipitation in the high-latitude ionosphere. It has also been noted that theExpand
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Relation of substorm breakup arc to other growth‐phase auroral arcs
[1] High-resolution CANOPUS meridian-scanning photometer and all-sky imager observations of preonset and expansion-phase auroral arcs are analyzed for expansion-phase onsets that evolve into fullExpand
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