Catalog of auroral radio absorption during 1976-1979 at Abisko, Sweden

Hargreaves, J. K. (John Keith), 1930-; Taylor, C. M. (Christopher Malcolm); Penman, J. M.

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Catalog of auroral radio absorption during 1976-1979 at Abisko, Sweden

1982
By Hargreaves, J. K. (John Keith), 1930- ; Taylor, C. M. (Christopher Malcolm) ; Penman, J. M.
Series: Report UAG ; 84

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Personal Author:

Hargreaves, J. K. (John Keith), 1930- ; Taylor, C. M. (Christopher Malcolm) ; Penman, J. M.

Hargreaves, J. K. (John Keith), 1930- ; Taylor, C. M. (Christopher Malcolm) ; Penman, J. M. Less -
Corporate Authors:

United States, Environmental Data and Information Service, ; World Data Center A for Solar-Terrestrial Physics

United States, Environmental Data and Information Service, ; World Data Center A for Solar-Terrestrial Physics Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service)
Description:

"This catalog lists concisely radio absorption events recorded by the wide-beam 30-MHz riometer at Abisko, Sweden, during the International Magnetospheric Study (IMS) of 1976-1979. The station has geographic coordinates N68.36° and E18.8° and an L value of 5.64 (invariant latitude 65.1°); magnetic midnight occurs there about 2200 UT. The detector is a standard La Jolla Sciences riometer with additional output smoothing to increase the response time to a few seconds. The antenna comprises two wire dipoles over reflector wires, producing a beam pointed to the zenith and having an approximately circular response pattern in which the gain decreases 3 dB at zenith angle 32° [Ecklund and Hargreaves, 1968]. Quoted absorption values remain uncorrected for antenna beam width; they should be reduced about 30% to obtain the absorption that a pencil beam antenna pointed to the zenith would measure. The catalog should be useful in three ways: (1) to indicate the level of auroral absorption activity in Scandinavia at particular times or on particular days; (2) to study statistically the incidence and intensity of radio absorption events; and (3) to aid in the selection of events of a particular type for detailed study"--Introduction.
Content Notes:

by J.K. Hargreaves, C.M. Taylor, and J.M. Penman.

At head of title: World Data Center A for Solar-Terrestrial Physics.

"July 1982."

Also available online in PDF form.

Includes bibliographical references (page 3).
Keywords:

[+]

Auroras Radio Auroras
Series:

Report UAG ; 84
Document Type:

Technical Report
Place as Subject:

Scandinavia ; Sweden ; Abisko

Scandinavia ; Sweden ; Abisko Less -
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:85e1334aaef4b1e8adb98e1f82965fcf231c1c0fb6a1a9db2d9fccc46bba3d81
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https://repository.library.noaa.gov/view/noaa/1048/noaa_1048_DS1.pdf
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Catalog of auroral radio absorption during 1976-1979 at Abisko, Sweden

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