Accession Number:

ADA169074

Title:

The Current-Voltage Relationship in Auroral Current Sheets.

Descriptive Note:

Progress rept. for 1986,

Corporate Author:

IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY

Report Date:

1986-03-01

Pagination or Media Count:

38.0

Abstract:

The current-voltage relation within narrow auroral current sheets is examined through the use of high-resolution data from the high altitude Dynamics Explorer 1 satellite. The north-south perpendicular electric field and the east-west magnetic field are shown for three cases in which there are large amplitude, oppositely directed paired electric fields and narrow current sheets. These data are shown to indicate that there is a linear Ohms law relationship between the current density and the parallel potential drop within the narrow current sheets. This linear relationship had previously been verified for large-scale auroral formations greater than 20 km wide at the ionosphere. The evidence shown here extends our knowledge down to the scale size of discrete auroral arcs. Author

Subject Categories:

  • Astrophysics
  • Atmospheric Physics
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE