observedreconstructedandsimulateddecadalvariabilityofsummerprecipitationovereasternchina

IGSNRR OpenIR

	observedreconstructedandsimulateddecadalvariabilityofsummerprecipitationovereasternchina
	Zheng Jingyun; Wu Maowei; Ge Quansheng; Hao Zhixin; Zhang Xuezhen
	2017
Source Publication	journalofmeteorologicalresearch
ISSN	2095-6037
Volume	31 Issue:1 Pages:49
Abstract	Based on observations made during recent decades, reconstructed precipitation for the period A. D. 1736-2000, dry-wet index data for A. D. 500-2000, and a 1000-yr control simulation using the Community Earth System Model with fixed pre-industrial external forcing, the decadal variability of summer precipitation over eastern China is studied. Power spectrum analysis shows that the dominant cycles for the decadal variation of summer precipitation are: 22-24 and quasi-70 yr over the North China Plain; 32-36,44-48, and quasi-70 yr in the Jiang-Huai area; and 32-36 and 44-48 yr in the Jiang-Nan area. Bandpass decomposition from observation, reconstruction, and simulation reveals that the variability of summer precipitation over the North China Plain, Jiang-Huai area, and Jiang-Nan area, at scales of 20-35, 35-50, and 50-80 yr, is not consistent across the entire millennium. We also find that the warm (cold) phase of the Pacific Decadal Oscillation generally corresponds to dry (wet) conditions over the North China Plain, but wet (dry) conditions in the Jiang-Nan area, from A. D. 1800, when the PDO became strengthened. However, such a correspondence does not exist throughout the entire last millennium. Data-model comparison suggests that these decadal oscillations and their temporal evolution over eastern China, including the decadal shifts in the spatial pattern of the precipitation anomaly observed in the late 1970s, early 1990s, and early 2000s, might result from internal variability of the climate system.
Language	英语
Funding Project	[National Natural Science Foundation of China] ; [Chinese Academy of Sciences] ; [Institute of Geographic Sciences and Natural Resources Research]
Document Type	期刊论文
Identifier	http://ir.igsnrr.ac.cn/handle/311030/80457
Collection	中国科学院地理科学与资源研究所
Affiliation	中国科学院地理科学与资源研究所
First Author Affilication	中国科学院地理科学与资源研究所
Recommended Citation GB/T 7714	Zheng Jingyun,Wu Maowei,Ge Quansheng,et al. observedreconstructedandsimulateddecadalvariabilityofsummerprecipitationovereasternchina[J]. journalofmeteorologicalresearch,2017,31(1):49.
APA	Zheng Jingyun,Wu Maowei,Ge Quansheng,Hao Zhixin,&Zhang Xuezhen.(2017).observedreconstructedandsimulateddecadalvariabilityofsummerprecipitationovereasternchina.journalofmeteorologicalresearch,31(1),49.
MLA	Zheng Jingyun,et al."observedreconstructedandsimulateddecadalvariabilityofsummerprecipitationovereasternchina".journalofmeteorologicalresearch 31.1(2017):49.

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