JGOFS: The Carbon Dioxide System in the Arabian Sea

9310594首席调查员米雷罗将与另一位合作科学家共同承担在阿拉伯海过程研究的远洋过程巡航期间对海水二氧化碳-碳酸盐系统进行岩心测量的任务。四种测量方法中的两种--总溶解无机碳、二氧化碳分压(PCO2)、总碱度和pH值--是描述整个碳酸盐平衡体系所必需的。在某些情况下。然而，将进行全套测量，以“过度确定”系统，以检查内部一致性。将沿着巡航轨道连续测量大气和地表水的二氧化碳分压。这类信息对于在海-气交换水平和全球范围内理解二氧化碳动力学是基本的。

9310594 MILLERO The principal investigator will share with another collaborating scientist the task of making core measurements of the seawater carbon dioxide-carbonate system during the pelagic processes cruises of the Arabian Sea Process Study. Two of four measurements -- total dissolved inorganic carbon, the partial pressure of carbon dioxide (pCO2), total alkalinity, and the pH -- are necessary for characterizing the entire carbonate equilibrium system. On some occasions. However, full sets of measurements will be made to "overdetermine" the system as a check on internal consistency. Both atmospheric and surface water pCO2 will be measured continuously along the cruise track. This kind of information is fundamental to understanding carbon dioxide dynamics at the level of sea-air exchange and on a global scale.