Collaborate Research:Modified Circumpolar Deep Water Intrusions as an Iron Source to the Summer Ross Sea Ecosystem

合作研究：改良的环极深水入侵作为夏季罗斯海生态系统的铁源

• 批准号: 0839024
• 负责人: Christopher Measures
• 金额: $ 37.76万
• 依托单位: University of Hawaii
• 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=0839024&HistoricalAwards=false
• 关键词: Collaborate; Research; Modified; Circumpolar; Deep

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."An interdisciplinary team of researchers will focus on describing the high productivity patchiness observed in phytoplankton blooms in the mid to late summer in the Ross Sea, Antarctica. Key hypotheses to be tested and extended are that intrusions of nutrient and micro nutrient (e.g. Fe) rich water masses of the Antarctic modified circumpolar deep water (CDW) up onto continental shelves act to control the biogeochemical response of a large area of the productive Ross Sea coastal region. It is believed that this enhanced productivity may be a significant contributing factor to the global carbon cycle. A novel sampling strategy to be used to test the above hypotheses will employ a remotely controlled deep (1000m) glider (AUV) to locate and map CDW in near real time measuring C (conductivity), T (temperature), D (pressure) and apparent optical properties, and which will serve to direct further ship-based sampling. The adaptive coordination of a polar research vessel with an AUV additionally provides an opportunity to engage in formal and informal education and public outreach on issues in polar research.

“该奖项是根据 2009 年美国复苏和再投资法案（公法 111-5）提供资金的。”一个跨学科的研究小组将重点描述在罗斯海夏中至夏末浮游植物大量繁殖中观察到的高生产力斑块。 ，南极洲。 需要测试和扩展的关键假设是，南极改良环极深水（CDW）富含营养物和微量营养物（例如铁）的水团侵入大陆架，控制了大面积罗斯生产力区的生物地球化学反应。沿海地区。人们相信，生产力的提高可能是全球碳循环的一个重要贡献因素。用于测试上述假设的新颖采样策略将采用远程控制的深海 (1000m) 滑翔机 (AUV) 来近乎实时地定位和绘制 CDW，测量 C（电导率）、T（温度）、D（压力）和表观光学特性，这将有助于指导进一步的船基采样。极地研究船与 AUV 的适应性协调还提供了参与极地研究问题的正式和非正式教育以及公众宣传的机会。