Wavelet analysis of Amazon hydrological regime variability

被引：62

作者：

Labat, D

Ronchail, J

Callede, J

Guyot, JL

De Oliveira, E

Guimaraes, W

机构：

[1] UPS, IRD, CNRS, LMTG, F-31400 Toulouse, France

[2] IRD, UR 154, LMTG, HYBAM,CNRS,UMR 5563, BR-71619970 Brasilia, DF, Brazil

[3] IRD, UR 154, LMTG, HYBAM,CNRS,UMR 5563, F-31400 Toulouse, France

[4] ANA, HYBAM, BR-70610200 Brasilia, DF, Brazil

[5] IRD, BR-71050191 Brasilia, DF, Brazil

来源：

GEOPHYSICAL RESEARCH LETTERS | 2004年 / 31卷 / 02期

关键词：

Amazon hydrology; wavelet analyses; ENSO; Atlantic SST; climatic forcings;

D O I：

10.1029/2003GL018741

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Wavelet analysis allows for an insightful examination of the temporal variability of Amazon basin hydrology and highlights intermittent interannual and interdecadal fluctuations. Two main conclusions arise. Interannual fluctuations appear as closely related to equatorial Pacific forcings whereas 15-year and bi-decadal fluctuations are strongly correlated with Pacific and tropical Atlantic long term forcings. The 1970's climate shift affects the Amazon basin, implying a correlation between both NATL and SOI and hydrological proxies after that decade.

引用

页码：L025011 / 4

页数：4

共 39 条

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