SGER: In Situ Measurement of Gas Transfer Velocity

这个小型探索性研究补助金(SGER)项目涉及使用新开发的仪器来测量从海水到大气的二甲基硫化物(DMS)通量。码头外的初步工作是DMS利用海洋大气下边界层的大气剖面进行的第一次工作。1997年7月的海上试验是在专门从事这项任务的邮轮上测量气体流量的一次独特的短期机会。这个项目将允许PI将他测量DMS剖面的技术转移到远程操作的双体船上，使他能够将DMS通量与巡航中其他研究人员伴随的表面化学和物理研究联系起来。这些估计通量的独立方法的直接比较代表了对薄层传输模型的测试，并可能提供对更一般的气体交换问题的洞察。

This Small Grants for Exploratory Research (SGER) project involves use of newly developed instrumentation to measure the flux of dimethylsulfide (DMS) from seawater to the atmosphere. Preliminary work off a pier are the first for DMS using the atmospheric profile in the lower boundary layer of the marine atmosphere. An at-sea test in July 1997 represents a unique and short-term opportunity to conduct measurements of gas flux on a cruise dedicated to that task. This project will allow the PI to transfer his technique for measuring DMS profiles to a remotely-operated catamaran, allowing him to relate DMS flux with concomitant investigations of surface chemistry and physics by other investigators on the cruise. The direct comparison of these independent methods of estimating flux represents a test of thin layer transfer models and may provide insight into more general questions of gas exchange.