US-France Cooperative Research: A Quantitative Assessment of Mineral Ballast in Marine Carbon Export and Remineralization

美法合作研究：海洋碳输出和再矿化中矿物压载物的定量评估

• 批准号: 0340535
• 负责人: Cindy Lee
• 金额: $ 1.5万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-02-01 至 2006-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0340535&HistoricalAwards=false
• 关键词: US; France; Cooperative; Research; Quantitative

0340535LeeThis two-year U.S.-France cooperative research project between the State University of New York at Stony Brook and Universite de la Mediterranee Laboratory of Marine Microbiology in Marseille, France addresses the role of minerals on the export of carbon to the deep ocean. Sinking particles, produced by organisms or introduced into the ocean by winds, export carbon from the sea surface to the ocean interior and sediments. During transit, most particulate organic carbon is returned to inorganic form and redistributed in the water column. This redistribution affects the amount of carbon that can be sequestered by the ocean and affects the rate at which the ocean can absorb and store CO2 from the atmosphere. The ability to specify quantitatively the depth profile of remineralization is critical to predicting the response of the global carbon cycle to environmental change. The Stony Brook team of Cindy Lee, Robert Armstrong and J. Kirk Cochran and the Marseille group of Madeleine Goutx and Richard Sempere will construct a model capable of describing and predicting transport of particulate organic matter and associated bioactive elements into the interior ocean. The model will provide information to support a better assessment of the role of the biological pump in the fate of anthropogenic CO2. Thus research will be conducted at the French JGOFS time series site (DYFAMED) in the Mediterranean. The Stony Brook team brings to the collaboration expertise in organic geochemistry (Lee), radiochemistry (Cochran) and modeling (Armstrong). This is complemented by the Marseille's group detailed knowledge of the DYFAMED site and their specialty in marine microbiology. Microbiology expertise is needed to understand the biological controls on organic matter remineralization in sinking particles. The project will advance understanding of the role of the oceans in controlling atmospheric CO2 and global warming. It also involves training of students in international research teams and will assist the establishment of international links early on in their career.The project is jointly supported by the National Science Foundation (NSF) and the Centre National de la Recherche Scientifique (CNRS). NSF will cover the costs of visits to France by the U.S. investigators and students. The CNRS provides funding for visits to the United States.

0340535 LeeThis两年美国-法国斯托尼布鲁克的纽约州立大学和法国马赛的地中海大学海洋微生物学实验室之间的合作研究项目探讨矿物在向深海输出碳方面的作用。由生物产生或由风带入海洋的沉降颗粒将碳从海面输出到海洋内部和沉积物。 在运输过程中，大多数颗粒有机碳返回无机形式并在水柱中重新分布。 这种重新分配影响海洋可以封存的碳量，并影响海洋吸收和储存大气中二氧化碳的速率。定量地确定全球化深度剖面的能力对于预测全球碳循环对环境变化的响应至关重要。 由辛迪·李、罗伯特·阿姆斯特朗和柯克·科克伦组成的斯托尼布鲁克小组和由马德琳·古特克斯和理查德·森佩雷组成的马赛小组将建立一个能够描述和预测颗粒有机物和相关生物活性元素向海洋内部迁移的模型。 该模型将提供信息，以支持更好地评估生物泵在人为CO2的命运中的作用。 因此，研究将在地中海的法国JGOFS时间序列站点（DYFAMED）进行。 斯托尼布鲁克团队为合作带来了有机地球化学（Lee）、放射化学（Cochran）和建模（Armstrong）方面的专业知识。 马赛的团队对DYFAMED基地的详细了解以及他们在海洋微生物学方面的专业知识对此进行了补充。 需要微生物学专业知识来了解沉降颗粒中有机物矿化的生物控制。 该项目将促进对海洋在控制大气二氧化碳和全球变暖方面的作用的了解。 该项目还包括在国际研究小组中培训学生，并将帮助他们在职业生涯早期建立国际联系，该项目得到国家科学基金会和国家科学研究中心的联合支持。 NSF将支付美国调查人员和学生访问法国的费用。 CNRS为访问美国提供资金。