Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-12639-2018 |
Detection of a climatological short break in the polar night jet in early winter and its relation to cooling over Siberia | |
Ando, Yuta1; Yamazaki, Koji1,2; Tachibana, Yoshihiro1; Ogi, Masayo3; Ukita, Jinro4 | |
2018-08-31 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:17页码:12639-12661 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; Canada |
英文摘要 | The polar night jet (PNJ) is a strong stratospheric westerly circumpolar wind at around 65 degrees N in winter, and the strength of the climatological PNJ is widely recognized to increase from October through late December. Remarkably, the climatological PNJ temporarily stops increasing during late November. We examined this "short break" in terms of the atmospheric dynamical balance and the climatological seasonal march. We found that it results from an increase in the upward propagation of climatological planetary waves from the troposphere to the stratosphere in late November, which coincides with a maximum of the climatological Eliassen-Palm (EP) flux convergence in the lower stratosphere. The upward propagation of planetary waves at 100 hPa, which is strongest over Siberia, is related to the climatological strengthening of the tropospheric trough over Siberia. We suggest that longitudinally asymmetric forcing by land-sea heating contrasts caused by their different heat capacities can account for the strengthening of the trough. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443279800002 |
WOS关键词 | QUASI-BIENNIAL OSCILLATION ; NORTHERN-HEMISPHERE WINTER ; ARCTIC OSCILLATION ; STRATOSPHERIC CONNECTION ; INTERANNUAL VARIABILITY ; CIRCUMPOLAR VORTEX ; STATIONARY WAVES ; PLANETARY-WAVES ; LIFE-CYCLE ; PART I |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/18375 |
专题 | 地球科学 |
作者单位 | 1.Mie Univ, Weather & Climate Dynam Div, 1577 Kurimamachiya Cho, Tsu, Mie 5148507, Japan; 2.Hokkaido Univ, Kita Ku, Kita 10,Nishi 5, Sapporo, Hokkaido 0600810, Japan; 3.Univ Manitoba, Ctr Earth Observat Sci, Wallace Bldg, Winnipeg, MB R3T 2N2, Canada; 4.Niigata Univ, Fac Sci, Niigata 9502181, Japan |
推荐引用方式 GB/T 7714 | Ando, Yuta,Yamazaki, Koji,Tachibana, Yoshihiro,et al. Detection of a climatological short break in the polar night jet in early winter and its relation to cooling over Siberia[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(17):12639-12661. |
APA | Ando, Yuta,Yamazaki, Koji,Tachibana, Yoshihiro,Ogi, Masayo,&Ukita, Jinro.(2018).Detection of a climatological short break in the polar night jet in early winter and its relation to cooling over Siberia.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(17),12639-12661. |
MLA | Ando, Yuta,et al."Detection of a climatological short break in the polar night jet in early winter and its relation to cooling over Siberia".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.17(2018):12639-12661. |
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