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Record Details

Record 43 of 8198
Energy flux and characteristic energy of an elemental auroral structure
External Online Source: doi:10.1029/94GL01764
Author and Affiliation:
Lanchester, B. S.(Univ. of Southampton, Southampton, United Kingdom)
Palmer, J. R.(Univ. of Southampton, Southampton, United Kingdom)
Rees, M. H.(Univ. of Southampton, Southampton, United Kingdom)
Lummerzheim, D.(Univ. of Alaska, Fairbanks, AK, United States)
Kaila, K.(Univ. of Oulu, Oulu, Finland)
Turunen, T.(Geophysical Observatory, Sodankyla, Finland)
Abstract: Electron density profiles acquired with the EISCAT radar at 0.2 s time resolution, together with TV images and photometric intensities, were used to study the characteristics of thin (less than 1 km) auroral arc structures that drifted through the field of view of the instruments. It is demonstrated that both high time and space resolution are essential for deriving the input parameters of the electron flux responsible for the elemental auroral structures. One such structure required a 400 mW/sq m (erg/sq cm s) downward energy flux carried by an 8 keV monochromatic electron flux equivalent to a current density of 50 micro Angstrom/sq m.
Publication Date: Dec 15, 1994
Document ID:
19950045515
(Acquired Dec 28, 1995)
Accession Number: 95A77114
Subject Category: GEOPHYSICS
Document Type: Journal Article
Publication Information: Geophysical Research Letters (ISSN 0094-8276); 21; 25; p. 2789-2792
Publisher Information: United States
Contract/Grant/Task Num: NAGW-3037
Financial Sponsor: NASA; United States
Organization Source: NASA; Washington, DC, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ATMOSPHERIC MODELS; AURORAL ARCS; EARTH ATMOSPHERE; ELECTRON DENSITY PROFILES; ELECTRON PRECIPITATION; SATELLITE OBSERVATION; DENSITY MEASUREMENT; EISCAT RADAR SYSTEM (EUROPE); NORMAL DENSITY FUNCTIONS; PHOTOMETRY
Imprint And Other Notes: Geophysical Research Letters vol. 21, no. 25 p. 2789-2792 December 15, 1994
Miscellaneous Notes: Research sponsored by the SERC
Availability Source: Other Sources
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