The analysis of interannual and interdecadal characteristics of global sea surface temperature during 1902—2003

ZHANG Jin-ting; LIU Qin-yu; WU Shu

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ZHANG Jin-ting, LIU Qin-yu, WU Shu. The analysis of interannual and interdecadal characteristics of global sea surface temperature during 1902—2003[J]. Haiyang Xuebao, 2010, 32(4): 24-31.

Citation:

ZHANG Jin-ting, LIU Qin-yu, WU Shu. The analysis of interannual and interdecadal characteristics of global sea surface temperature during 1902—2003[J]. Haiyang Xuebao, 2010, 32(4): 24-31.

ZHANG Jin-ting, LIU Qin-yu, WU Shu. The analysis of interannual and interdecadal characteristics of global sea surface temperature during 1902—2003[J]. Haiyang Xuebao, 2010, 32(4): 24-31.

Citation:

ZHANG Jin-ting, LIU Qin-yu, WU Shu. The analysis of interannual and interdecadal characteristics of global sea surface temperature during 1902—2003[J]. Haiyang Xuebao, 2010, 32(4): 24-31.

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The analysis of interannual and interdecadal characteristics of global sea surface temperature during 1902—2003

Physical Oceanography Laboratory & Ocean-Atmospheric Interaction and Climate Laboratory, Ocean University of China, Qingdao 266003,China

Received Date: 2009-05-09

Abstract

Abstract

Based on the monthly HadiSST SSTA(sea surface temperature anomaly) in recent 100 years (from 1903 to 2002), the spatial and temporal variation characteristics of global SSTA are analyzed by using the method of Empirical Orthogonal Function (EOF),the first main mode of global SSTA and other joint modes between different oceans are respectively obtained. It is shown that the maximum changes of SSTA appear in equatorial eastern Pacific, Gulf Stream zone in northwestern Atlantic and Kuroshio extension zone in north Pacific; ENSO in tropical Pacific is the first main mode with periods of 2~7 years; the second main mode and third main mode are joint modes between different oceans with an interdecadal period of about 70 years. The second mode is a Pacific-Atlantic double dipole mode with one out-of-phase dipole in north Pacific and north Atlantic, the other in tropical Pacific and tropical Atlantic. The third mode is a North Pacific-North Atlantic-Southern Ocean mode with out-of-phase between northern and southern hemispheres. The forth mode reflects local ocean-atmosphere interaction patterns in different zones and the time series in this mode presents interannual periods of 1~4 years and an interdecadal period of about 9 years .
- SST,
- Empirical Orthogonal Function analysis,
- main mode,
- interannual and interdecadal characteristics

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References(22)

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