气候变化领域集成服务门户(CCPortal): Impact of Volcanic Aerosols on the Hydrology of the Asian Monsoon and Westerlies-Dominated Subregions: Comparison of Proxy and Multimodel Ensemble Means

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DOI	10.1029/2020JD032831
	Impact of Volcanic Aerosols on the Hydrology of the Asian Monsoon and Westerlies-Dominated Subregions: Comparison of Proxy and Multimodel Ensemble Means
	Zhuo Z.; Gao C.; Kirchner I.; Cubasch U.
发表日期	2020
ISSN	2169897X
卷号	125 期号:18
英文摘要	Proxy-model comparisons show large discrepancies in the impact of volcanic aerosols on the hydrology of the Asian monsoon region (AMR). This was mostly imputed to uncertainties arising from the use of a single model in previous studies. Here we compare two groups of CMIP5 multimodel ensemble mean (MMEM) with the tree-ring-based reconstruction Monsoon Asia Drought Atlas (MADA PDSI), to examine their reliability in reproducing the hydrological effects of the volcanic eruptions in 1300–1850 CE. Time series plots indicate that the MADA PDSI and the MMEMs agree on the significant drying effect of volcanic perturbation over the monsoon-dominated subregion, while disparities exist over the westerlies-dominated subregion. Comparisons of the spatial patterns suggest that the MADA PDSI and the MMEMs show better agreement 1 year after the volcanic eruption than in the eruption year and in subregions where more tree-ring chronologies are available. The MADA PDSI and the CMIP5 MMEMs agree on the drying effect of volcanic eruptions in western-East Asia, South Asian summer monsoon, and northern East Asian summer monsoon (EASM) regions. Model results suggest significant wetting effect in southern EASM and western-South Asia, which agrees with the observed hydrological response to the 1991 Mount Pinatubo eruption. Analysis on model output from the Last Millennium Ensemble project shows similar hydrological responses. These results suggest that the CMIP5 MMEM is able to reproduce the impact of volcanic eruptions on the hydrology of the southern AMR. ©2020. The Authors.
英文关键词	hydrological index; monsoon-dominated subregion; multimodel ensemble mean; proxy data; volcanic aerosol; westerlies-dominated subregion
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185776
作者单位	Institute of Meteorology, Freie Universität Berlin, Berlin, Germany; Department of Environmental Science, Zhejiang University, Hangzhou, China
推荐引用方式 GB/T 7714	Zhuo Z.,Gao C.,Kirchner I.,et al. Impact of Volcanic Aerosols on the Hydrology of the Asian Monsoon and Westerlies-Dominated Subregions: Comparison of Proxy and Multimodel Ensemble Means[J],2020,125(18).
APA	Zhuo Z.,Gao C.,Kirchner I.,&Cubasch U..(2020).Impact of Volcanic Aerosols on the Hydrology of the Asian Monsoon and Westerlies-Dominated Subregions: Comparison of Proxy and Multimodel Ensemble Means.Journal of Geophysical Research: Atmospheres,125(18).
MLA	Zhuo Z.,et al."Impact of Volcanic Aerosols on the Hydrology of the Asian Monsoon and Westerlies-Dominated Subregions: Comparison of Proxy and Multimodel Ensemble Means".Journal of Geophysical Research: Atmospheres 125.18(2020).