RUI: Flux of Dissolved Organic Carbon in Coastal Rainwater

RUI：沿海雨水中溶解有机碳的通量

• 批准号: 9530069
• 负责人: Joan Willey
• 金额: $ 23.65万
• 依托单位: University of North Carolina at Wilmington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9530069&HistoricalAwards=false
• 关键词: RUI; Flux; Dissolved; Organic; Carbon

9530069 Willey The project investigates the chemical composition of rainwater samples collected at a coastal location in Wilmington, NC, and relates variations in the concentrations of dissolved organic carbon (DOC) to air mass origin. The Wilmington site (UNCW) is suited for wet deposition research because it receives precipitation from continental and maritime storms. The decade of rainwater research conducted by the PI at the Wilmington site shows the chemical composition of rain from the two storm types to differ with respect to pH, inorganic ions, formic and acetic acids, and during cold seasons, hydrogen peroxide concentrations. Results obtained from the project will help to quantify levels of DOC that are removed from the atmosphere through wet deposition. This information is relevant to processes affecting carbon accumulation in the atmosphere. As a Research in Undergraduate Institutions (RUI) Activity, the three-year project will support one graduate student full-time (masters level), and six undergraduate students as summer research assistants. Student assistants will be involved in sample collection, chemical analysis, and data interpretation relating to precipitation events. The UNCW rainwater project has been an effective mechanism for training undergraduates in an applied area of analytical chemical research. The project will continue to make significant contributions to the development of human resources in science. *** ATM-9530069

9530069 Willey 该项目调查了在北卡罗来纳州威尔明顿沿海地区收集的雨水样本的化学成分，并将溶解有机碳 (DOC) 浓度的变化与气团来源联系起来。威尔明顿站点（UNCW）适合进行湿沉降研究，因为它接收来自大陆和海洋风暴的降水。 PI 在威尔明顿站点进行的十年雨水研究表明，两种风暴类型的雨水化学成分在 pH 值、无机离子、甲酸和乙酸以及寒冷季节的过氧化氢浓度方面存在差异。 该项目获得的结果将有助于量化通过湿沉降从大气中去除的 DOC 水平。 该信息与影响大气中碳积累的过程相关。 作为一项本科机构研究（RUI）活动，这个为期三年的项目将支持一名全日制研究生（硕士水平）和六名本科生作为暑期研究助理。 学生助理将参与与降水事件相关的样本收集、化学分析和数据解释。 UNCW雨水项目一直是分析化学研究应用领域培养本科生的有效机制。 该项目将继续为科学人力资源的发展做出重大贡献。 *** ATM-9530069