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Research on the heat propagation actin of the Equatorial planetary waves to the Western Equatorial Pacific warm pool

SHI Qiang1,3, XU Jianping2,3, ZHU Bokang2 (1North China Sea Branch, SOA, Qingdao 266033, China;2Second Instrocesses and Satellite Oceanography, SOA, Hangzhou 310012, China)  
Based on the longterm buoy data from the Tropical Atmosphere Ocean (TAO) array during the TOGA (Tropical Ocean and Global Atmosphere) Program (19801996), the heat propagation acting of the Equatorial planetary waves to the Western Equatorial Pacific warm pool is analyzedResults show that the zonal heat transmission in the Western Equatorial Pacific takes place mainly in the subsurface water and spreads eastwards along the thermocline, while the seasonal heat structure change spreading westwards occurs in the mixed layers in the middle and Western Equatorial PacificThe standingform transmission in the Western Equatorial Pacific appears in the thermocline layer, while in the Eastern Equatorial Pacific, it exists in the mixed layer as well as in the thermocline layerThe standingform and eastward spreading sign of zonal heat transmitting in the upper water is predominant and strong, and the westward sign is weakThe component force of Kelvin Equatorial wave pressure runs through the western and Eastern Equatorial Pacific, and transmits heat energy eastwards, and the heat transmitting by zonal current component occurs mostly in the Western Equatorial Pacific. The heat transmitting by the component force of Rossby wave pressure mainly appears in the eastern and middle area of the Pacific, while zonal current component transmitting occurs mainly in the Western Equatorial Pacific. The mixed Rossby gravity wave's action on the zonal current is stronger than that of the thermocline layerIn mean climate state, the standing wave model of Equatorial Pacific for the upper layer ocean temperature confine heat transport of Western Equatorial Pacific warm pool to Eastern PacificUnder the abnormal condition, the standing wave model of Equatorial Pacific for the upper layer ocean temperature becomes weaken and eastwardly model enhances, subsequently the E1 Nio event occurs
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