DOI: 10.1175/JCLI-D-16-0601.1
Scopus记录号: 2-s2.0-85020134475
论文题名: No access causality of the drought in the Southwestern United States based on observations
作者: Zhang F. ; Lei Y. ; Yu Q.-R. ; Fraedrich K. ; Iwabuchi H.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 13 起始页码: 4891
结束页码: 4896
语种: 英语
英文摘要: Slow feature analysis is used to extract driving forces from the monthly mean anomaly time series of the precipitation in the southwestern United States (1895-2015). Four major spectral scales pass the 95% confidence test after wavelet analysis of the derived driving forces. Further harmonic analysis indicates that only two fundamental frequencies are dominant in the spectral domain. The frequencies represent the influence of the Pacific decadal oscillation (PDO) and solar activity on the precipitation from the southwestern United States. In addition, solar activity has exerted a greater effect than the PDO on the precipitation in the southwestern United States over the past 120 years. By comparing the trend of droughts with the two fundamental frequencies, it is found that both the droughts in the 1900s and in the twenty-first century were affected by the PDO and solar activity, whereas the droughts from the 1950s to the 1970s were mainly affected by solar activity. © 2017 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
; NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/48850
Appears in Collections: 气候变化与战略
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作者单位: Key Laboratory of Meteorological Disaster, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China; Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University, Sendai, Japan; Max Planck Institute for Meteorology, Hamburg, Germany
Recommended Citation:
Zhang F.,Lei Y.,Yu Q.-R.,et al. No access causality of the drought in the Southwestern United States based on observations[J]. Journal of Climate,2017-01-01,30(13)