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| DOI | 10.1007/s00382-018-4297-x |
| Interannual variability of March snow mass over Northern Eurasia and its relation to the concurrent and preceding surface air temperature; precipitation and atmospheric circulation | |
| Ye K. | |
| 发表日期 | 2019 |
| ISSN | 0930-7575 |
| 起始页码 | 2813 |
| 结束页码 | 2836 |
| 卷号 | 52期号:2020-05-06 |
| 英文摘要 | The interannual variability of March snow water equivalent (SWE) in Northern Eurasia and its influencing factors are studied. The surface air temperature (SAT) and precipitation are the dominant factors for the snow accumulation in northern Europe and the remaining region, respectively. The strongest contribution of SAT to snow accumulation is mainly found in those months with moderate mean SAT. The strongest contribution of precipitation is not collocated with the climatological maxima in precipitation. The leading mode of March SWE variability is obtained and characterized by a spatial dipole. Anomalies in atmospheric water vapor divergence, storm activity and the associated atmospheric circulation can explain many of the associated precipitation and SAT features. Anomalies in autumn Arctic sea ice concentration (SIC) over the Barents Sea and Kara Sea (B/K Sea) and a dipole pattern of November snow cover (SC) in Eurasia are also observed. The atmospheric circulation anomalies that resemble a negative phase of North Atlantic Oscillation (NAO)/Arctic Oscillation (AO) are strongly projected onto the wintertime atmospheric circulation. Both observations and model experiment support that the autumn B/K Sea SIC has some impacts on the autumn and AO/NAO-like wintertime atmospheric circulation patterns. The dipole pattern of November Eurasian SC seems to be strongly forced by the autumn B/K Sea SIC and its feedback to the atmospheric circulation is important. Therefore, the impacts of autumn B/K Sea SIC on the autumn/wintertime atmospheric circulation and thus the March SWE variability may be modulated by both constructive and destructive interference of autumn Eurasian SC. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. |
| 英文关键词 | Arctic oscillation; Arctic sea ice; Eurasian snow; Eurasian snow mass; Precipitation; Surface air temperature |
| 语种 | 英语 |
| scopus关键词 | air temperature; annual variation; Arctic Oscillation; atmospheric circulation; mass; precipitation (climatology); sea ice; snow; surface temperature; Eurasia |
| 来源期刊 | Climate Dynamics
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/146495 |
| 作者单位 | Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Shatin, Hong Kong; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany |
| 推荐引用方式 GB/T 7714 | Ye K.. Interannual variability of March snow mass over Northern Eurasia and its relation to the concurrent and preceding surface air temperature; precipitation and atmospheric circulation[J],2019,52(2020-05-06). |
| APA | Ye K..(2019).Interannual variability of March snow mass over Northern Eurasia and its relation to the concurrent and preceding surface air temperature; precipitation and atmospheric circulation.Climate Dynamics,52(2020-05-06). |
| MLA | Ye K.."Interannual variability of March snow mass over Northern Eurasia and its relation to the concurrent and preceding surface air temperature; precipitation and atmospheric circulation".Climate Dynamics 52.2020-05-06(2019). |
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