DOI: 10.1175/JCLI-D-12-00075.1
Scopus记录号: 2-s2.0-84874816580
论文题名: Potential impacts of the arctic on interannual and interdecadal summer precipitation over China
作者: Li Y. ; Ruby Leung L.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 3 起始页码: 899
结束页码: 917
语种: 英语
Scopus关键词: Arctic ice
; Arctic Oscillation
; Arctic oscillations
; Arctic warming
; Eastern China
; Empirical orthogonal function analysis
; Inter-decadal variability
; Interannual
; Interannual variability
; Interdecadal
; North China
; Potential impacts
; Precipitation patterns
; South China
; Spatial patterns
; Spring temperatures
; Summer precipitation
; Summer temperature
; Surface temperatures
; Time-scales
; Yangtze River
; Atmospheric temperature
; Precipitation (chemical)
; Tectonics
; Lasers
; annual variation
; Arctic Oscillation
; decadal variation
; precipitation (climatology)
; spring (season)
; summer
; surface temperature
; warming
; China
; Yangtze River
英文摘要: After the end of the 1970s, there has been a tendency for enhanced summer precipitation over south China and the Yangtze River valley and drought over north China and northeastern China. Coincidentally, Arctic ice concentration has decreased since the late 1970s, with a larger reduction in summer than spring. However, the Arctic warming is more significant in spring than summer, suggesting that spring Arctic conditions could be more important in their remote impacts. This study investigates the potential impacts of the Arctic on summer precipitation in China. The leading spatial patterns and time coefficients of the unfiltered, interannual, and interdecadal precipitation (1960-2008) modes were analyzed and compared using empirical orthogonal function (EOF) analysis, which shows that the first three EOFs can capture the principal precipitation patterns (northern, central, and southern patterns) over eastern China. Regression of the Arctic spring and summer temperature onto the time coefficients of the leading interannual and interdecadal precipitation modes shows that interdecadal summer precipitation in China is related to the Arctic spring warming but that the relationship with Arctic summer temperature is weak. Moreover, no notable relationships were found between the first three modes of interannual precipitation and Arctic spring or summer temperatures. Finally, correlations between summer precipitation and the Arctic Oscillation (AO) index from January to August were investigated, which indicate that summer precipitation in China correlates with AO only to some extent. Overall, this study suggests important relationships between the Arctic spring temperature and summer precipitation over China at the interdecadal time scale. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52016
Appears in Collections: 气候变化事实与影响
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作者单位: Pacific Northwest National Laboratory, Richland, WA, United States; National Climate Center, China Meteorological Administration, Beijing, China
Recommended Citation:
Li Y.,Ruby Leung L.. Potential impacts of the arctic on interannual and interdecadal summer precipitation over China[J]. Journal of Climate,2013-01-01,26(3)