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	An increase in the biogenic aerosol concentration as a contributing factor to the recent wetting trend in Tibetan Plateau
	Fang K. Y.; Makkonen, R.; Guo, Z. T.; Zhao, Y.; Seppa, H.
	2015
关键词	climate-change model drought millennium dynamics moisture china
英文摘要	A significant wetting trend since the early 1980s in Tibetan Plateau (TP) is most conspicuous in central and eastern Asia as shown in the instrumental data and the long-term moisture sensitive tree rings. We found that anomalies in the large-scale oceanic and atmospheric circulations do not play a significant role on the wetting trend in TP. Meanwhile, the weak correlation between local temperature and precipitation suggests that the temperature-induced enhancement of the local water cycle cannot fully explain the wetting trend either. This may indicate the presence of nonlinear processes between local temperature and precipitation. We hypothesize that the current warming may enhance the emissions of the biogenic volatile organic compounds (BVOC) that can increase the secondary organic aerosols (SOA), contributing to the precipitation increase. The wetting trend can increase the vegetation cover and cause a positive feedback on the BVOC emissions. Our simulations indicate a significant contribution of increased BVOC emissions to the regional organic aerosol mass and the simulated increase in BVOC emissions is significantly correlated with the wetting trend in TP.
出处	Scientific Reports
卷	5
收录类别	SCI
语种	英语
ISSN号	2045-2322
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/38431]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Fang K. Y.,Makkonen, R.,Guo, Z. T.,et al. An increase in the biogenic aerosol concentration as a contributing factor to the recent wetting trend in Tibetan Plateau. 2015.

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