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Arctic warming by cloud radiation enhanced by moist air intrusion observed at Ny-Ålesund, Svalbard
https://nipr.repo.nii.ac.jp/records/15922
https://nipr.repo.nii.ac.jp/records/15922b30a41d2-1772-409a-b815-77d81895551d
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2019-09-30 | |||||
タイトル | ||||||
タイトル | Arctic warming by cloud radiation enhanced by moist air intrusion observed at Ny-Ålesund, Svalbard | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Arctic warming by cloud radiation enhanced by moist air intrusion observed at Ny-Ålesund, Svalbard | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Arctic amplification | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Cloud | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Radiation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Warm air intrusion | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Atmospheric circulation | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Yamanouchi, Takashi
× Yamanouchi, Takashi |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | At Ny-Ålesund, Svalbard, Arctic, two distinct states were seen in downward longwave radiation (LD) during winter 2015/16. After the cold state with the temperature around −10 to −20 °C, a warm state with plus temperature appeared and LD increased from about 170 to 320–330 W m−2. This abrupt and large increase of LD was due to the change of cloud condition, from clear to overcast, which was examined from the cloud radar data taken during GRENE Arctic Research Project. However, only the cloud change could not explain this large change of LD. During the warm state, the atmospheric circulation patterns changed, distortion of tropospheric polar vortex appeared with a high pressure ridge (blocking high), and strong cyclone and intrusion of warm and moist air from the Atlantic Ocean together with longwave radiation from clouds influenced the warming at Svalbard. Thus, the discussions of two Arctic winter states in LD was much effective than those in net longwave. This intrusion of warm-moist air from the lower latitude was one of the major processes contributing to the Arctic amplification, just as also proposed using GCM by Yoshimori et al. (2017). The paper provided the actual observational evidence of this warming process. | |||||
書誌情報 |
en : Polar Science 巻 21, p. 110-116, 発行日 2019-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polar.2018.10.009 | |||||
関連名称 | 10.1016/j.polar.2018.10.009 |