Event Title

Parallel and Altitude Dependent Perpendicular Electric Fields Deduced From Auroral Zone Incoherent Scatter Radar Measurements

Location

Yosemite National Park

Start Date

2-8-1974 10:30 AM

End Date

2-8-1974 10:45 AM

Description

Incoherent scatter measurements have been made with the Chatanika radar to study variations of the perpendicular electric field with altitude and distance along the magnetic field line. On two occasions, in association with large negative bays, significant variations have been observed. These data combine with the requirement that ∇ x E = 0 to suggest that parallel electric fields with magnitudes > 10 millivolts/meter existed at altitudes below 500 kilometers on magnetically active nights. Hence, wave turbulence and anomalous resistivity may be present at such altitudes. Recent measurements designed to measure the waves responsible for the anomalous resistivity will be described.

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Feb 8th, 10:30 AM Feb 8th, 10:45 AM

Parallel and Altitude Dependent Perpendicular Electric Fields Deduced From Auroral Zone Incoherent Scatter Radar Measurements

Yosemite National Park

Incoherent scatter measurements have been made with the Chatanika radar to study variations of the perpendicular electric field with altitude and distance along the magnetic field line. On two occasions, in association with large negative bays, significant variations have been observed. These data combine with the requirement that ∇ x E = 0 to suggest that parallel electric fields with magnitudes > 10 millivolts/meter existed at altitudes below 500 kilometers on magnetically active nights. Hence, wave turbulence and anomalous resistivity may be present at such altitudes. Recent measurements designed to measure the waves responsible for the anomalous resistivity will be described.