A new VHF doppler radar experiment at Syowa Station, Antarctic
A new VHF doppler radar with a minicomputer for real-time processing and radar control will be operational in 1982 at Syowa Station, Antarctica, in order to study E-region irregularities and neutral wind motions. This project, one of the ground-based study programs in Antarctica for the Middle Atmos...
| Main Authors: | , , , , |
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| Format: | Report |
| Language: | English |
| Published: |
Radio Research Laboratories/Hiraiso Branch, Radio Research Laboratories/Radio Research Laboratories/National Institute of Polar Research/National Institute of Polar Research
1982
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| Subjects: | |
| Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1278 http://id.nii.ac.jp/1291/00001278/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1278&item_no=1&attribute_id=18&file_no=1 |
| Summary: | A new VHF doppler radar with a minicomputer for real-time processing and radar control will be operational in 1982 at Syowa Station, Antarctica, in order to study E-region irregularities and neutral wind motions. This project, one of the ground-based study programs in Antarctica for the Middle Atmosphere Program (MAP, 1982-1985), aims at clarifying how the middle atmosphere in the 80-110km altitude region behaves in response to the energy flow from the magnetosphere into the polar ionosphere, especially during a substorm. The radar has three operation modes; spectrum mode, double-pulse mode and meteor mode. The spectrum mode provides doppler spectra of back-scattered signals from which characteristics of the plasma turbulence due to auroral activity can be investigated. Mean drift velocities of the irregularities are derived from the double-pulse mode. The drift velocity obtained by this mode ultimately can be related to the ionospheric electric field. In the meteor mode, wind motions in the 80-110km altitudes are investigated by using meteor trails. |
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