Upper Ocean Heat Content In The Pacific Ocean Responding To11-Year Solar Cycle

Solar irradiance is the most important driving force for the Earth’s climate. Thetotal solar irradiance (TSI) impinging on the Earth has an approximately11-yearvariation. The ocean heat content is a major component of earth’s energy budget.Using the method of composite-mean difference (CMD), a spatial pattern is obtained.To distinguish between simultaneous natural and anthropogenic impacts on ocean heatcontent (OHC), regionally as well as we perform a robust multivariate analysis usingthe best available estimates of each together with the OHC record from1955to2011.In the first part of this work we obtain the spatial pattern derived from CMDmethod. In some of the (negative or positive) high response areas, we find clearlydecadal variation in OHC anomaly (OHCa). There are difference spatialcharacteristics in the difference areas in the Pacific Ocean. The air-sea interactions(Meehl, et al.2008) is used for explaining the spatial pattern.In the second part we analyze natural and anthropogenic impacts on OHC. Weperform a robust multivariate analysis using the best available estimates of eachcomponent together with the observed OHCa record from1955to2011. The resultsenable us to compare the geographical distributions of responses to individualinfluences consistent with their impacts. By the model based on multivariate analysismethod, we give a possible variability of Pacific Ocean OHCa in the next twodecades.