Radar observations of ionospheric irregularities at Syowa Station, Antarctica: a brief overview
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, Dopple...
| Published in: | Annales Geophysicae |
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| Main Author: | |
| Format: | Text |
| Language: | English |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://doi.org/10.1007/s00585-996-1454-z https://angeo.copernicus.org/articles/14/1454/1996/ |
| Summary: | 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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