DOI: 10.1007/s00382-016-3062-2
Scopus记录号: 2-s2.0-84961845572
论文题名: The effects of monsoons and climate teleconnections on the Niangziguan Karst Spring discharge in North China
作者: Zhang J. ; Hao Y. ; Hu B.X. ; Huo X. ; Hao P. ; Liu Z.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 48, 期: 2017-01-02 起始页码: 53
结束页码: 70
语种: 英语
英文关键词: Climate teleconnection
; Global coherence coefficient
; Karst spring
; Monsoon
; Wavelet coherence
; Wavelet transform
英文摘要: Karst aquifers supply drinking water for 25 % of the world’s population, and they are, however, vulnerable to climate change. This study is aimed to investigate the effects of various monsoons and teleconnection patterns on Niangziguan Karst Spring (NKS) discharge in North China for sustainable exploration of the karst groundwater resources. The monsoons studied include the Indian Summer Monsoon, the West North Pacific Monsoon and the East Asian Summer Monsoon. The climate teleconnection patterns explored include the Indian Ocean Dipole, E1 Niño Southern Oscillation, and the Pacific Decadal Oscillation. The wavelet transform and wavelet coherence methods are used to analyze the karst hydrological processes in the NKS Basin, and reveal the relations between the climate indices with precipitation and the spring discharge. The study results indicate that both the monsoons and the climate teleconnections significantly affect precipitation in the NKS Basin. The time scales that the monsoons resonate with precipitation are strongly concentrated on the time scales of 0.5-, 1-, 2.5- and 3.5-year, and that climate teleconnections resonate with precipitation are relatively weak and diverged from 0.5-, 1-, 2-, 2.5-, to 8-year time scales, respectively. Because the climate signals have to overcome the resistance of heterogeneous aquifers before reaching spring discharge, with high energy, the strong climate signals (e.g. monsoons) are able to penetrate through aquifers and act on spring discharge. So the spring discharge is more strongly affected by monsoons than the climate teleconnections. During the groundwater flow process, the precipitation signals will be attenuated, delayed, merged, and changed by karst aquifers. Therefore, the coherence coefficients between the spring discharge and climate indices are smaller than those between precipitation and climate indices. Further, the fluctuation of the spring discharge is not coincident with that of precipitation in most situations. Karst spring discharge as a proxy can represent groundwater resource variability at a regional scale, and is more strongly influenced by climate variation. © 2016, Springer-Verlag Berlin Heidelberg. 资助项目: NSFC, National Natural Science Foundation of China
; NSFC, National Natural Science Foundation of China
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53399
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: College of Mathematical Science, Tianjin Normal University, Tianjin, China; Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin, China; Department of Ecology, Jinan University, Guangzhou, Guangdong, China; Department of Earth, Ocean and Atmospheric Sciences, Florida State University, Tallahassee, FL, United States; College of Global Change and Earth System Science (GCESS), Joint Center for Global Change Studies, Beijing Normal University, Beijing, China; College of Urban and Environmental Science, Tianjin Normal University, Tianjin, China; School of Computer Software, Tianjin University, Tianjin, China; State Key Laboratory of Marine Geology, Tongji University, Shanghai, China
Recommended Citation:
Zhang J.,Hao Y.,Hu B.X.,et al. The effects of monsoons and climate teleconnections on the Niangziguan Karst Spring discharge in North China[J]. Climate Dynamics,2017-01-01,48(2017-01-02)