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Unified model of auroral substorm development. Final report, 1 Jul 1973--30 Jun 1975

Technical Report ·
OSTI ID:7342555
; ; ; ;
The primary data base for this report on auroral substorm phenomena included DAPP/DMSP satellite images of auroras, selected mid- and high-latitude ground-based magnetograms, and newly developed ground-based photometric measurements of auroral emissions of great sensitivity. Extensive morphological and topological studies were made from the DAPP/DMSP images. An auroral activity index was developed, and statistical correlations with magnetic indices were determined. The persistence of aurora, and auroral zone, and the relationships between auroral activity with substorms and mid-latitude magnetic signatures were developed from satellite images. Models were developed from satellite images using mid-latitude magnetograms to detect substorm occurrence. The photometric studies gave new information on the location of particle injection at substorm onset and on morphological characteristics of auroras in local time. The advantages of x-ray monitoring of the ionosphere from a polar orbiting satellite are described; and statistics of the solar wind electric field, determined. (GRA)
Research Organization:
Boston Coll., Chestnut Hill, Mass. (USA). Dept. of Physics
OSTI ID:
7342555
Report Number(s):
AD-A-020313
Country of Publication:
United States
Language:
English

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Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AURORAE
DISTRIBUTION
EARTH ATMOSPHERE
ELECTRIC FIELDS
EMISSION
ENERGY TRANSFER
INTERPLANETARY SPACE
IONOSPHERE
MAGNETIC BAYS
MAGNETIC FIELDS
MATHEMATICAL MODELS
POLAR REGIONS
SOLAR ACTIVITY
SOLAR WIND
SPACE
SPATIAL DISTRIBUTION
VARIATIONS