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| Titel |
Radar observations of ionospheric irregularities at Syowa Station, Antarctica: a brief overview |
| VerfasserIn |
T. Ogawa |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 14, no. 12 ; Nr. 14, no. 12, S.1454-1461 |
| Datensatznummer |
250012510
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| Publikation (Nr.) |
 copernicus.org/angeo-14-1454-1996.pdf |
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| Zusammenfassung |
| We briefly overview the radar observations
that have been made for 30 years at Syowa Station, Antarctica for studying
small-scale electron-density irregularities in the southern high-latitude E-
and F-region ionosphere. Some observational results (i.e., long-term
variations of radio aurora, Doppler spectra with narrow spectral widths and low
Doppler velocities, and simultaneous observations of radar and optical auroras)
from VHF radars capable of detecting 1.3- to 3-m scale irregularities are
presented. A new 50-MHz radar system equipped with phased-antenna arrays began
operation in February 1995 to observe two-dimensional behaviours of E-region
irregularities. An HF radar experiment also began in February 1995 to explore
decameter-scale E- and F-region irregularities in the auroral zone
and polar cap. These two radars will contribute to a better understanding of the
ionospheric irregularities and ionospheric physics at southern high latitudes. |
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