Abstract
Data from the CTBT/IMS station 153US at Fairbanks, AK covering 2003 and 2004 have been surveyed for high-correlation, high trace-velocity events. Although such events have been detected at all times of the day the distribution shows a strong maximum in the morning hours (near 15UT) and a weaker maximum in the evening hours (near 5UT). Twenty intervals containing high trace-velocity events from 2003 and 37 intervals from 2004 have been studied in detail. The intervals containing high trace-velocity events can last from a few hours up to 10 hours. All-sky video records show that the high trace-velocity events are associated with stable, pulsating auroral patches that occur during the recovery phase of substorms. This talk will review the characteristics of the high trace-velocity events and the associated auroral video where available.
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