Signal propagations and linkages of subsurface temperature anomalies in the tropical Pacific and Indian Ocean

查看全文 作　　者：QIAN Weihong HU [1]Haoran

机构地区：[1]Monsoon & Environment Research Group, School of Physics, Peking University, Beijing 100871, China

出　　处：《Progress in Natural Science:Materials International》索引2005年第15卷第9期,共6页

基　　金：SupportedbyNationalNaturalScienceFoundationofChina(GrantNos.40475032and40345026) 摘　　要：The propagation characteristics of signals along different zonal-time profiles are analyzed using surface and subsurface temperature anomalies over the tropical Pacific and Indian oceans. Analyses show that there are intrinsic relationships between El Nio events in the eastern equatorial Pacific and dipole events in the equatorial Indian Ocean. In the region of tropical North Pacific between the equator and 16°N, there is a circle of propagation of subsurface temperature anomalies. El Nio events only happen when the warm subsurface signals reach the eastern equatorial Pacific. Dipole events are characterized when a warm subsurface signal travels along off-equatorial Indian Ocean to the western boundary. From these analyses, we believe that subsurface temperature anomalies can be considered to be the oceanographic early signal to forecast El Nio events in Pacific Ocean and dipole events in Indian Ocean, respectively. 关键词：信号传播太平洋印度洋海水温度双极子赤道区域

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Signal propagations and linkages of subsurface temperature anomalies in the tropical Pacific and Indian Ocean

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