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

基本信息

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

项目摘要

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.

首席研究人员将使用涡流协方差技术在广泛的海洋学条件下进行两次研究巡航，以测量二氧化碳，二甲基硫化物和丙酮。赤道太平洋上升流地区的热带巡游将捕获世界上大多数海洋的中等至低风速条件。太平洋巡航的一个主要目标是研究以风速的增加气体交换系数的增加。高纬度北大西洋巡游将集中于高生物生产力和更高风速的领域。在高纬度巡游中，将研究浮游植物对天然气汇率的影响，并且将研究气泡作为气体汇率率的作用。这些巡游将增加海洋直接通量研究的当前数据库，该数据库极小，并且不足以严格地表征气体转移系数的变化，这是主要海盆中风速，海平面，生物生产力或季节性的函数。这项研究的更广泛影响包括从高中实习生到本科和研究生的各个教育的学生参与。代表性不足的学生将通过外部课程包括在内。还将努力包括一名本科生和来自少数学区研究巡游的高中老师。