Chemical Mapping of the Sea-Surface Microlayer: A System for Measurement of Spatial and Temporal Variations in Composition

海面微层化学测绘：成分时空变化测量系统

• 批准号: 9811279
• 负责人: Nelson Frew
• 金额: $ 35万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-10-01 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9811279&HistoricalAwards=false
• 关键词: Chemical; Mapping; Sea; Surface; Microlayer

ABSTRACTOCE-9811279The sea surface microlayer plays an important role in air-sea interactions, especially in modulating the exchange of heat, mass, and momentum. The intensity of the modulation depends on the elasticity of the microlayer film, which in turn depends upon the chemical composition of the film. In this project a system will be developed for mapping the chemistry of the sea surface microlayer in near-real time. A surface skimming apparatus will be linked to a small mass spectrometer for deployment at sea from an instrument platform or small boat. The combination is expected to provide chemical mass spectral data about the microlayer with a resolution of of several minutes. The principal investigator expects that this instrumentation will deliver for the first time the ability to see details of the chemical nature of the microlayer on a time scale relevant to the physics of the sea-air interface.

海表微层在海气相互作用中起着重要的作用，特别是在调节热量、质量和动量的交换方面。 调制的强度取决于微层膜的弹性，而弹性又取决于膜的化学组成。 在该项目中，将开发一个系统，用于近实时绘制海洋表面微层的化学性质。 表面撇取装置将连接到一个小型质谱仪，用于从仪器平台或小船部署在海上。 预计该组合将提供关于微层的化学质谱数据，分辨率为几分钟。 首席研究员预计，这种仪器将首次提供在与海-气界面物理学相关的时间尺度上查看微层化学性质细节的能力。