SGER: In Situ Measurement of Gas Transfer Velocity

SGER：气体传输速度的原位测量

• 批准号: 9713407
• 负责人: John W Dacey
• 金额: $ 5万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-05-15 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9713407&HistoricalAwards=false
• 关键词: SGER; Situ; Measurement; Gas; Transfer

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.

这个探索性研究小额赠款 (SGER) 项目涉及使用新开发的仪器来测量二甲硫醚 (DMS) 从海水到大气的通量。 码头的初步工作是使用海洋大气下边界层的大气剖面进行 DMS 的第一步。 1997 年 7 月的海上测试提供了一个独特的短期机会，可以在专门执行该任务的游轮上测量气体通量。该项目将允许 PI 将测量 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对表面化学和物理的同步研究联系起来。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，并且可以深入了解更一般的气体交换问题。