Water mass structure in the eastern tropical Pacific Ocean: Relationship to oxygen variability and geochemical properties (A05)

将继续对热带海洋进行水文和地球化学示踪联合研究，重点是热带南太平洋东部，以调查过去50年来溶解氧和营养物分布的趋势以及驱动营养物利用的平流依赖因素。重点将是氧气和营养变化与气候信号之间的联系，以及最终的模型数据比较，以及控制东太平洋热带氧气最低区海水中氮和硅利用的因素，这将通过一个中围实验和营养利用与水柱中微量营养素分布之间的直接比较来解决。

The joint hydrographic and geochemical tracer study of the tropical oceans with focus on the eastern tropical South Pacific will be continued to investigate trends of the dissolved oxygen and nutrient distribution over the past 50 years and the advection-dependent factors driving nutrient utilization. Foci will be the linkage between oxygen and nutrient variability and climatic signals, as well as final model-data comparisons, and the factors controlling nitrogen and silicon utilisation in seawater of the eastern tropical Pacific oxygen minimum zone, which will be tackled through a mesocosm experiment and by direct comparison between nutrient utilization and micronutrient distributions in the water column.