Influences of solar-terrestrial events on atmospheric environment over Syowa Station, Antarctica: A preliminary analysis of radiosonde observations
Radiosonde observations at Syowa Station, Antarctica (69°S, 40°E), are analyzed to find the stratospheric and tropospheric influence of solar-terrestrial phenomena in 1967-1993. Although the level of statistical significance is generally low, mean temperature changes of 1-2℃ are seen after solar pro...
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| Format: | Report |
| Language: | English |
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Department of Environmental Sciences, Ibaraki University
1996
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| Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=4187 http://id.nii.ac.jp/1291/00004187/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=4187&item_no=1&attribute_id=18&file_no=1 |
| Summary: | Radiosonde observations at Syowa Station, Antarctica (69°S, 40°E), are analyzed to find the stratospheric and tropospheric influence of solar-terrestrial phenomena in 1967-1993. Although the level of statistical significance is generally low, mean temperature changes of 1-2℃ are seen after solar proton events; these include transient warming in the lower stratosphere and cooling in the troposphere. The most significant temperature changes appeared during the East phase of quasi biennial oscillation (QBO<0). The presence of a weak correlation with the phase southern oscillation index (SOI) is also suggested. Only very low-level correlations are found for Forbush decreases of galactic cosmic rays and geomagnetic activities. |
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