DOI: 10.1007/s00382-015-2627-9
Scopus记录号: 2-s2.0-84957442617
论文题名: Links between the late wintertime North Atlantic Oscillation and springtime vegetation growth over Eurasia
作者: Li J. ; Fan K. ; Xu Z.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 46, 期: 2017-03-04 起始页码: 987
结束页码: 1000
语种: 英语
英文关键词: Eurasia
; NAO
; NDVI
; Non-simultaneous
; Snow
英文摘要: In the present study, the linkages between the late wintertime (January–February–March; JFM) North Atlantic Oscillation (NAO) and springtime (April–May–June; AMJ) vegetation growth over Eurasia is investigated. Here, the proxy of vegetation growth is represented by normalized difference vegetation index (NDVI) gridded data, obtained from the advanced very high resolution radiometer. Over the period 1982–2006, the NAO (JFM) correlated well with the NDVI (AMJ) over Eurasia, wherein a positive NAO tended to increase the NDVI (AMJ) over Eurasia and vice versa. The results show that a positive phase of the late wintertime NAO leads to an increase in surface air temperature, soil temperature and rainfall in most parts of Eurasia in winter. These changes tend to produce weaker and thinner snow cover in spring compared to that that forms in a negative NAO phase. Corresponding to this, the albedo decreases and the surface air temperature increases over Eurasia in spring, which contributes an earlier snowmelt. Subsequently, the land surface over Eurasia becomes warmer and wetter earlier, as the snow melts. These conditions can then facilitate higher than average vegetation growth over Eurasia, in comparison to the conditions that occur in a negative NAO phase. © 2015, Springer-Verlag Berlin Heidelberg. 资助项目: NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53845
Appears in Collections: 过去全球变化的重建
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作者单位: Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; University of the Chinese Academy of Sciences, Beijing, China; Climate Change Research Center, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Li J.,Fan K.,Xu Z.. Links between the late wintertime North Atlantic Oscillation and springtime vegetation growth over Eurasia[J]. Climate Dynamics,2016-01-01,46(2017-03-04)