1978 diffuse auroral boundaries and a derived auroral boundary index
By: M.S. Gussenhoven ... [et al.].
Series: Environmental research paper -- no. 818; AFGL-TR -- 82-0398; Environmental research papers (Hanscom AFB, Mass.) -- no. 818
Publisher: Space Physics Division, Air Force Geophysics Laboratory, Air Force Systems Command, USAF
Published: 1982
Place of publication: Hanscom AFB, Mass
Language: eng
Number of pages: 210
Subjects: Auroras; Observations; Indexes; Auroral electrons; Diffusion; Atmospheric electricity
Description: DMSP/F2 and F4 precipitating electron data are used to determine statistically the systematic variations of the equatorward boundary with Kp as a function of local time. The boundaries were chosen by hand for every DMSP/F2 satellite pass in 1978. These in turn are used to assess an algorithm developed to choose the boundaries automatically. From the statistical variations each boundary is projected to a midnight boundary. The projected midnight boundary served as an index of auroral activity-the Auroral Boundary Index. Listing of the 1978 hand- and computer-chosen boundaries and the Auroral Boundary Index for 1978 are included in appendices.
Notes: Title from cover.

"28 December 1982."

"Space Physics Division project 2311."

Includes bibliographical references (p. 59).