Computer Science – Sound
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992anre.book..294y&link_type=abstract
In National Inst. of Polar Research, Antarctic Record, Vol. 36, No. 2 p 294-309 (SEE N94-27963 07-46)
Computer Science
Sound
Annual Variations, Atmospheric Physics, Atmospheric Sounding, Ionospheric Sounding, Stratosphere, Antarctic Regions, Auroral Irradiation, Auroras, Magnetometers, Photography, Photometry, Riometers, Solar Activity Effects
Scientific paper
Observations of the upper atmosphere physics at Asuka Station from 1 Jan. to 24 Dec. 1989, carried out by the 30th Japanese Antarctic Research Expedition (JARE-30) are described. In JARE-30 one research member of the upper atmosphere physics was wintering at Asuka Station, and several instruments were newly installed so as to observe auroral phenomena in conjunction with Showa Station, Iceland observations, and scientific satellites. Characteristics of the JARE-30's observations at Asuka Station are as follows: (1) the observation of Cosmic Noise Absorption (CNA) with a 30 MHz riometer was made throughout the year; (2) a fixed direction and a tracking photometers were newly installed, and spatial and temporal developments of aurora photo emissions in various wave lengths were observed; (3) an all sky camera used in JARE-28 was re-installed; (4) an all sky SIT (Silicon Intensifier Target)-TV (Television) camera was newly installed so as to observe auroral motions with high time resolution; (5) a digital data recorder was installed for the auroral photometric data; (6) Z-component of an Ultra Low Frequency (ULF) induction magnetometer which had been in trouble was recovered, so the three components of both a fluxgate magnetometer and the induction magnetometer could be observed; and (7) in 1989, the solar activity was very high and there were many interesting geophysical events, and auroral phenomena.
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