Net and Gross Production in the Equatorial Pacific Based on the Concentration and Isotopic Composition of Dissolved O2

项目负责人将对赤道东太平洋上层水柱的氧浓度和三种氧同位素（18O, 17O, 16O）的数量进行调查，以限制该地区的净产量和总产量。三同位素数据将用于估计初级总产量。18O的测量结果可以用来约束沿等海水密度表面的横向扩散混合的估计。预计该项目将在典型的船上海洋“过程”研究中取得的瞬时生产速率与通过观测推断出的盆地尺度速率之间建立联系叶绿素、营养物、水文和其他由卫星和水文评估的示踪剂。这项调查预计将测试和改进赤道太平洋的广义环流模型和生物地球化学模型，这些模型不仅对了解这一广阔海洋地区的初级生产和氧气循环很重要，而且对获得碳循环区域动态的间接评估也很重要。

ABSTRACTOCE-0082324The principal investigator will conduct a survey of the concentration of oxygen and the amounts of three oxygen isotopes (18O, 17O, 16O) in the upper water column of the eastern equatorial Pacific Ocean to constrain the rates of net and gross production in the region.. The triple isotopic data will be used to estimate gross primary production., and the 18O measurements will can be used to constrain estimates of lateral diffusive mixing along surfaces of equal seawater density. The project is expected provide a link between instantaneous the rates of production made in typical shipboard ocean "process" studies and basin-scale rates inferred from observations chlorophyll, nutrients, hydrography and other tracers assessed by satellite and hydrography. The survey is expected to test and improve Generalized Circulation Models and biogeochemical models of the equatorial Pacific that are important not only for understanding primary production and oxygen cycling in this vast oceanic region but also for gaining an indirect assessment of the regional dynamics of carbon cycling.