Collaborative Research: Observation and Prediction of Ocean Acidification in the Western Arctic Ocean - Impacts of Physical and Biogeochemical Processes on Carbonate Mineral States

合作研究：北冰洋西部海洋酸化的观测和预测——物理和生物地球化学过程对碳酸盐矿物状态的影响

• 批准号: 1041102
• 负责人: Jeremy Mathis
• 金额: $ 56.44万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1041102&HistoricalAwards=false
• 关键词: Collaborative; Research; Observation; Prediction; Ocean; Collaborative; Research; Observation; Prediction; Ocean

The investigators will assess ocean acidification in the western Arctic Ocean, using ship time that is currently scheduled for annual mooring turnarounds in the Beaufort Sea. On these cruises, in September of 2011-2013, the investigators will collect samples for measurement of carbonate system parameters, inorganic nutrients, dissolved oxygen, oxygen isotopes, and oxygen/argon ratios, as well as continuous underway measurements of dissolved oxygen, oxygen/argon ratios, and pCO2. These data will be used to gain insights and perspectives into the extent of ocean acidification in the western Arctic Ocean; the key physical, chemical, and biological processes influencing the saturation states of aragonite and calcite; and potential impacts to pelagic and benthic communities. Water column observations will be synthesized with data from the associated NSF AON (Arctic Observing Network)-funded mooring, including temperature, salinity, nitrate, oxygen, pCO2, and pH, as well as carbon and hydrographic data collected on other cruises in the region. During each field season the PI will travel to several native villages to discuss the potential impacts of ocean acidification at town meetings and in classrooms. The work will contribute to carbon cycle studies coordinated under a variety of science plans and implementation structures that aim to establish accurate estimates of carbon budgets and fluxes and the underlying mechanisms that regulate them. A postdoctoral scientist will participate directly in this work, and results will be incorporated in one undergraduate level course and two graduate level courses taught by the lead investigator.

调查人员将使用目前计划在Beaufort Sea的年度系泊转折点的船舶时间来评估西部北极海洋的海洋酸化。在2011年9月至2013年9月，研究人员将收集样品，以测量碳酸盐系统参数，无机营养素，溶解的氧，氧气，氧同位素和氧/氩气比率，以及对溶解的氧气，氧气，氧气/Argon/Argon/Argon/Argon ratios和pCO的持续测量。这些数据将用于获得北极海洋海洋酸化程度的见解和观点。关键的物理，化学和生物学过程影响了后者和方解石的饱和状态；以及对全叶植物和底栖群落的潜在影响。水柱的观察结果将与来自相关的NSF AON（北极观测网络）的数据合成，包括温度，盐度，硝酸盐，氧气，氧气，PCO2和pH，以及该地区其他巡航上收集的碳和水文数据。在每个现场季节，PI将前往几个本地村庄，讨论在城镇会议和教室中海洋酸化的潜在影响。这项工作将有助于在各种科学计划和实施结构下协调的碳循环研究，旨在确定对碳预算和通量的准确估计以及调节它们的基本机制。博士后科学家将直接参加这项工作，结果将纳入一门本科课程和两项由主要研究人员教授的研究生水平课程。