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根据1986年11月～1997年间月期间在114°～130°E，沿22°～18°N航线各航次所测量的大气和表层汽水中的CO2分压和总CO2浓度的变化，分析海气分压差（△PCO2）和溶解的总CO2浓度（TCO2）在不同季节对海气异常事件的响应。结果表明，无论春、夏、秋、冬，在ENSO暴发期和成熟期TCO2为高值，△PCO2为正值；在LaNina时TCO2为低值，△PCO2为负值；在ENSO暴发前、后，海-气C02分压呈近平衡状态；PCO2（air）和PCO2（sw）在各季节对ENSO的响应一致。在ENSO成熟期为高值，在ENSO暴发前和暴发期为低值；海气分压差与PCO2（SW）一致变化，在ENSO期间达最大值。海气CO2输送通量（Flux）以秋季ENSO期间达最大，而在LaNina时减小，在ENSO暴发前和结束后成为相反向，即从大气到海洋的CO2弱输送。本文根据1986年～93年七个航次的平均值讨论了各季节TCO2的距平对ENSO和LaNina的响应特征及最显著变化区段，并依此推断出：1995年10月，显示1991～95年ENSO结束，1996年5月出现ENSO暴发前的信号，在1997年7月是夏季ENSO暴发期特征，在1997年12月呈现强烈的ENSO特征。
Based on the changes of the partial pressures of CO2 and total CO2 in the atmospheric and surface water samples measured at various voyages between 114 ° -130 ° E and 22 ° -18 ° N from November 1986 to January 1997, Partial pressure difference (△ PCO2) and dissolved total CO2 concentration (TCO2) in different seasons in response to abnormal sea air events. The results showed that TCO2 was high in both spring and summer, autumn and winter and △ PCO2 was positive during the ENSO outbreak and maturity; TCO2 was low and △ PCO2 was negative during LaNina. Before and after the ENSO outbreak , Sea-gas C02 partial pressure was near equilibrium; PCO2 (air) and PCO2 (sw) were consistent with ENSO responses in all seasons. It is high at the mature stage of ENSO and low before and during the ENSO outbreak. The partial pressure difference between the sea surface and the PCO2 (SW) is consistent and reaches the maximum during the ENSO period. The fluxes of seawater CO2 flux (Flux) reached the maximum during the fall ENSO period and decreased at LaNina, and reversed before and after the ENSO outbreak, ie, weak CO2 transport from the atmosphere to the ocean. In this paper, we discuss the response characteristics and the most significant changes of TCO2 anomalies to ENSO and LaNina based on the average of seven cruises from 1986 to 1993. Based on this, we deduce that in October 1995, The year ENSO ended and the signal before the ENSO outbreak in May 1996 was the characteristic of the summer ENSO outbreak in July 1997 and the strong ENSO characteristic in December 1997.