| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2014-08-19 |
| タイトル |
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タイトル |
Total solar eclipse over Antarctica on 23 November 2003 and its effects on the atmosphere and snow near the ice sheet surface at Dome Fuji |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源 |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
Takao, Kameda
Koji, Fujita
Okimasa, Sugita
Naohiko, Hirasawa
Shuhei, Takahashi
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| 著者別名 |
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識別子Scheme |
WEKO |
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識別子 |
44128 |
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識別子Scheme |
KAKEN |
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識別子URI |
https://nrid.nii.ac.jp/ja/nrid/1000000233974 |
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識別子 |
233974 |
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姓名 |
亀田, 貴雄 |
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言語 |
ja |
| 著者別名 |
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識別子Scheme |
WEKO |
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識別子 |
39235 |
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姓名 |
高橋, 修平 |
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言語 |
ja |
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The Moon cast a long shadow over Antarctica on 23 November 2003 in a total solar eclipse. The eclipse was observed at Dome Fuji Station, located at the highest point of East Dronning Maud Land, Antarctica, and lasted 1 h 41 min 37 s in a cloudless condition, during which the Sun was completely obscured for 1 min 43 s. This was the first total solar eclipse to be observed in the Antarctic ice sheet. During the eclipse at Dome Fuji, the air temperature at 1.5 m above the snow surface and the subsurface snow temperature decreased by 3.0 K and 1.8 K, respectively. Estimated surface snow temperatures decreased by 4.6 K. Atmospheric pressure and wind direction did not change, but the wind speed possibly decreased by 0.3 m/s with decreasing air temperature; natural variations in wind speed before and after the eclipse made it difficult to identify a true effect of the solar eclipse. Variations of energy components (net shortwave and longwave radiations, sensible and latent heat fluxes, and geothermal heat) during the eclipse were investigated. The total loss of global solar radiation during the eclipse was 0.60 MJ m?2, equaling 1.6% of the total daily global solar radiation. Regional effects of the eclipse due to a reduction of global solar radiation for air temperature and snow temperature ranged from 0.015 to 0.020 K (W m?2)?1. We additionally examined the relation between eclipse obscuration (the fraction of the Sun's surface area occulted by the Moon) and the reduction of global solar radiation from the first to second contacts. The eclipse was also observed from space by the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors onboard NASA's Terra and Aqua satellites. The observational results of this study will contribute to detailed model calculations for clarifying the meteorological effects of eclipses. |
| 書誌情報 |
Journal of Geophysical Research
巻 114,
号 D18115,
p. 1-15,
発行日 2009-09
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
http://doi.org/10.1029/2009JD011886 |
| 権利 |
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権利情報 |
Copyright 2009 by the American Geophysical Union. |
| 出版者 |
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出版者 |
American Geophysical Union. |
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言語 |
en |
| 関連サイト |
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URL |
http://www.igsoc.org/ |
| 著者版フラグ |
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言語 |
en |
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値 |
publisher |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
No59.pdf (966.4 kB)
