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DOI | 10.1029/2019JD030479 |
Intraseasonal Snow Cover Variations Over Western Siberia and Associated Atmospheric Processes | |
Song, Lei1; Wu, Renguang1,2,3 | |
2019-08-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:16页码:8994-9010 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The present study documents intraseasonal snow cover variations over western Eurasia and associated atmospheric processes using the latest Moderate Resolution Imaging Spectroradiometer/Terra daily snow cover product and National Centers for Environmental Prediction/National Center for Atmospheric Research atmospheric reanalysis. It is found that 9- to 30-day variation dominates total intraseasonal snow cover variations over western Siberia. Composite analysis based on 69 positive snow events over western Siberia reveals that atmospheric circulation anomalies control the 9- to 30-day snow variation over western Siberia. A zonal wave train associated with the North Atlantic Oscillation leads to the development of an anomalous cyclone over western Siberia. The associated anomalous ascending motion, anomalous water vapor convergence, and water vapor increase in the atmosphere provide a favorable condition for snowfall. The snowfall starts when anomalous ascending motion reaches the strongest. The maximum snow cover appears about 1 day after the peak of anomalous descending motion and water vapor flux divergence. The surface air temperature tends to vary out of phase with snow cover over western Siberia. Surface air temperature anomalies over western Siberia are contributed by horizontal advection and diabatic heating. The adiabatic heating has a damping effect in surface air temperature variation. |
英文关键词 | the western Siberia snow cover intraseasonal variation atmospheric process |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490762800007 |
WOS关键词 | ARCTIC SEA-ICE ; NORTHERN-HEMISPHERE ; VARIABILITY ; CIRCULATION ; IMPACTS ; CLIMATE ; TRENDS ; NAO ; AO |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/186143 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing, Peoples R China; 2.Zhejiang Univ, Sch Earth Sci, Hangzhou, Zhejiang, Peoples R China; 3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Song, Lei,Wu, Renguang. Intraseasonal Snow Cover Variations Over Western Siberia and Associated Atmospheric Processes[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(16):8994-9010. |
APA | Song, Lei,&Wu, Renguang.(2019).Intraseasonal Snow Cover Variations Over Western Siberia and Associated Atmospheric Processes.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(16),8994-9010. |
MLA | Song, Lei,et al."Intraseasonal Snow Cover Variations Over Western Siberia and Associated Atmospheric Processes".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.16(2019):8994-9010. |
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