Spatio-temporal Variability of Northern Hemipheric Sea Level Pressure (SLP) and Precipitat

Spatio-temporal Variability of Northern Hemipheric Sea Level Pressure (SLP) and Precipitation overthe Mid-to-Low Reaches of the

Yangtze River

HAN Xue;WEI Fengying;Yves M.TOURRE;DONG Wenjie

【期刊名称】《大气科学进展（英文版）》 【年(卷),期】2008(025)003

【摘要】The spatio-temporal variability of Northern Hemisphere Sea Level Pressure (SLP) and precipitation over the mid-to-low reaches of the Yangtze River (PMLY) is analyzed jointly using the multi-taper /singular value decomposition method (MTM-SVD). Statistically significant narrow frequency bands are obtained from the local fractional variance (LFV) spectrum. Significant interdecadal (i.e., 16-to-18-year periods) and interannual (i.e., 3-to-6-year periods) signals are identified. Moreover, a significant quasi-biennial signal is identified but only for PMLY data. The spatial joint evolution of patterns obtained for peaks in the LFV spectrum sheds light on relationships between SLP and PMLY: the Arctic Oscillation (AO) modulates the variability of the PMLY while the interannual variability of PMLY is in phase with the Northern Atlantic Oscillation (NAO) and the Northern Pacific Oscillation (NPO). 【总页数】9页(458-466)

【关键词】MTM-SVD, coupled spatio-temporal characteristics

【作者】HAN Xue;WEI Fengying;Yves M.TOURRE;DONG Wenjie

【作者单位】Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;State Key Laboratory for Earth Surface Processes

and

Resource

Ecology,

Beijing

Normal

University,

100875;State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081;MEDIAS-France, Toulouse, France;LDEO of Columbia University, New York, USA;State Key Laboratory for Earth Surface Processes and Resource Ecology, Beijing Normal University, 100875 【正文语种】中文 【中图分类】P4 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_advances-atmospheric-sciences_thesis/0201253029845.html 【相关文献】

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