Collabortive Research: Biogeochemical Cycling of CO, OCS, and HOOH on Diel to Seasonal Time Scales: Measuring and Modeling Distributions and Fluxes

OCE-9811208/9815190/9815179/9815187世界海洋的明亮表面沃茨是与大气进行物质交换的区域，也是一个以无数化学反应为特征的区域，其中许多反应是由阳光驱动的。 在这个项目中，研究人员将量化和模拟海洋上层的硫化羰、一氧化碳和过氧化氢的昼夜循环。 这三种物质都是由有色溶解有机物的太阳光分解产生的。 这三个物种的高分辨率测定将在海上进行，同时进行适当的光学，生物和气象测量。 将利用实验室实验和数学模型来限制可能的相互转化机制，并估计未测量的通量。 研究人员希望对海洋中这些全球重要化学物种的化学性质以及它们在海洋和低层大气之间的交换获得前所未有的了解。

OCE-9811208/9815190/9815179/9815187The well-lit surface waters of the world ocean is a region of material exchange with the atmosphere as well as a region characterized by a myriad of chemical reactions, many of which are driven by sunlight. In this project, the investigators will quantify and model the diel cycling of carbonyl sulfide, carbon monoxide, and hydrogen peroxide in the upper ocean. All three species are generated by solar photolysis of colored dissolved organic matter. High resolution determinations of these three species will be made at sea together with appropriate optical, biological, and meterological measurements. Laboratory experiments and mathematical models would be used to constrain the possible mechanisms of interconversion and to estimate unmeasured fluxes. The investigators expect to achieve an unprecedented understanding of the chemistry of these globally-important chemical species in the sea as well as their exchange between the ocean and lower atmosphere.