A better understanding of recent changes of the CO2 system in the Western Arctic Ocean via field measurements from the summer 2014 CHINARE cruise

通过 2014 年夏季 CHINARE 巡航的现场测量，更好地了解北冰洋西部二氧化碳系统的近期变化

• 批准号: 1304337
• 负责人: Wei-Jun Cai
• 金额: $ 43.44万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-10-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1304337&HistoricalAwards=false
• 关键词: better; understanding; recent; changes; CO2

This project would continue a successful collaboration between U.S. and Chinese scientists to study the exchange of carbon dioxide between the atmosphere and the surface waters of the Arctic Ocean. It involves the collection of high resolution underway pCO2 (partial pressure of carbon dioxide) data combined with discrete samples of water column pH, total dissolved inorganic carbon (DIC), alkalinity, calcium, nutrients, and oxygen during the Chinese Arctic Research Expedition (CHINARE) cruise in summer 2014. Together with historical data, the results will be used to constrain the variability of sea surface pCO2, air-to-sea CO2 flux, and their changes over time and to understand the underlying carbon cycling control mechanisms in the Western Arctic Ocean. The investigator hypothesizes that 1) sea surface pCO2 is highly variable in the Western Arctic Ocean and is controlled by multiple parameters that are climate-sensitive, and that current knowledge is insufficient to draw reliable conclusions regarding air-sea CO2 flux, controlling mechanisms and prediction of future changes, 2) high biological production (and CO2/DIC removal) areas have expanded from the southern areas in 1990s and early 2000s to the northern basins today along with the retreat of sea ice, and 3) riverine inorganic and organic carbon inputs have increased and they play an important role in controlling sea surface pCO2 and thus the net air-sea CO2 exchange flux in the western Arctic Ocean. This project would continue an active international collaboration and culture a Chinese Arctic carbon research team through fieldwork and data synthesis activities. The collaboration would incorporate these data into several U.S. and international databases. The project would also directly support a Ph.D. student.

该项目将继续在美国和中国科学家之间进行成功的合作，以研究大气和北极海地水域之间二氧化碳的交换。它涉及收集正在进行的高分辨率PCO2（二氧化碳的部分压力）数据，结合了pH值的离散样品，完全溶解的无机碳（DIC），碱度，钙，营养，营养和氧气，在中国北极研究探险（CHINARE）在2014年夏季的循环中，pco coper co cope co cope co。二氧化碳通量及其随着时间的变化，并了解西部北极海洋中的碳循环控制机制。研究者假设1）海面PCO2在西部北极海洋中是高度可变的，并且受到气候敏感的多个参数的控制，并且当前的知识不足以得出有关空气海CO2通量的可靠结论，对空气co2磁通量，控制机制和未来变化的预测，以及南方地区的早期变化，以及南方的早期变化（以及南方的早期），以及南方地区的扩展（以及南方的范围）。如今，随着海冰的撤退，以及3）河流无机和有机碳输入增加了，它们在控制海面PCO2中起着重要作用，因此在北极海洋中的净气海二氧化碳交换通量。该项目将通过现场工作和数据综合活动继续积极的国际合作与文化中国北极碳研究小组。该合作将将这些数据纳入美国和国际数据库中。该项目还将直接支持博士学位。学生。