Collaborative Research: Air/Sea Gas Exchange Studies of Carbon Dioxide, Dimethyl Sulfide, and Acetone by Eddy Correlation

合作研究：通过涡相关研究二氧化碳、二甲硫醚和丙酮的空气/海洋气体交换

• 批准号: 0851068
• 负责人: Warren De Bruyn
• 金额: $ 7.77万
• 依托单位: Chapman University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0851068&HistoricalAwards=false
• 关键词: Collaborative; Research; Air; Sea; Gas

The principal investigators will conduct two research cruises to measure carbon dioxide, dimethyl sulfide, and acetone using the eddy covariance technique over a broad range of oceanographic conditions. A tropical cruise in the equatorial Pacific upwelling region will capture the moderate to low wind speed conditions characteristic of most of the world's oceans. A main goal of the Pacific cruise will be to study the increase of the gas exchange coefficient with wind speed. A high latitude North Atlantic Ocean cruise will focus on areas of high biological productivity and higher wind speeds. On the high latitude cruise the impact of phytoplankton blooms on gas exchange and the role of bubbles as a factor in gas exchange rates will be studied. These cruises will add to the current database of direct flux studies in the oceans, which is extremely small, and insufficient to rigorously characterize the variability in gas transfer coefficients as a function of wind speed, sea state, biological productivity or seasonality in the major ocean basins. The broader impacts of the research include the participation of students from various levels of education from high school interns to undergraduate and graduate students. Underrepresented students will be included through an external program. There will also be an effort made to include an undergraduate student and a high school teacher from a minority school district on a research cruise.

主要调查人员将进行两次研究航行，在广泛的海洋条件下使用涡动协方差技术测量二氧化碳、二甲基硫和丙酮。 在赤道太平洋上升流区域进行热带巡航将捕捉到世界上大多数海洋特有的中低速条件。 太平洋航行的一个主要目标是研究气体交换系数随风速的增加。 北大西洋高纬度巡航将侧重于生物生产力高和风速较高的地区。 在高纬度航行中，将研究浮游植物大量繁殖对气体交换的影响以及气泡作为气体交换率的一个因素的作用。 这些航行将增加目前海洋直接通量研究的数据库，该数据库规模极小，不足以严格描述主要海洋盆地中气体转移系数随风速、海况、生物生产力或季节性变化的特点。 这项研究的更广泛影响包括从高中实习生到本科生和研究生的各个教育层次的学生的参与。 代表性不足的学生将通过一个外部计划包括在内。 还将努力让一名本科生和一名来自少数族裔学区的高中教师参加研究航行。