Anomalous pattern of ocean heat content during different phases of the solar cycle in the tropical Pacific  

作　　者：HUO Wen-Juan XIAO Zi-Niu HUO Wen-Juan;XIAO Zi-Niu(State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China;College of Earth Science, University of Chinese Academy of Sciences, Beijing, China)

机构地区：[1]State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China [2]College of Earth Science, University of Chinese Academy of Sciences, Beijing, China

出　　处：《Atmospheric and Oceanic Science Letters》2017年第1期9-16,共8页大气和海洋科学快报（英文版）

基　　金：supported by the National Basic Research Program of China[grant number 2012CB957804];the External Cooperation Program of Bureau of International Co-operation,Chinese Academy of Sciences[grant number 134111KYSB20150016]

摘　　要：Solar radiation is a forcing of the climate system with a quasi-11-year period.As a quasi-period forcing,the influence of the phase of the solar cycle on the ocean system is an interesting topic of study.In this paper,the authors investigate a particular feature,the ocean heat content（OHC）anomaly,in different phases of the total solar irradiance（TSI） cycle.The results show that almost opposite spatial patterns appear in the tropical Pacific during the ascending and declining phases of the TSI cycle.Further analysis reveals the presence of the quasi-decadal（11-year） solar signal in the SST,OHC and surface zonal wind anomaly field over the tropical Pacific with a high level of statistical confidence（95%）.It is noted that the maximum centers of the ocean temperature anomaly are trapped in the upper ocean above the main pycnocline,in which the variations of OHC are related closely with zonal wind and ocean currents.具有准11年周期的太阳辐射是地球气候系统的主要能量来源。作为一个准周期强迫,太阳辐射周期变化的位相对热带太平洋海洋热状态的影响值得关注。本文中,作者分析了在太阳总辐射不同位相下,热带太平洋海洋热含量的异常特征。结果表明在太阳活动的上升位相和下降位相,海洋热含量异常的空间型几乎是对称的,而异常值则是相反的。进一步分析表明,在热带太平洋的某些区域,在海洋表面温度,海洋热含量和表面风场中均存在显著的准11年太阳信号。海洋温度异常的最大值中心位于主温跃层以上的次表层。不同太阳位相之间热含量异常的转变与表面纬向风异常以及热带太平洋地区的洋流密切相关。

关 键 词：Ocean heat content anomaly total solar irradiance solar cycle tropical Pacific 

分 类 号：P422.1[天文地球—大气科学及气象学] P731