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: 0839062
• 负责人: Jorge Sarmiento
• 金额: $ 34.5万
• 依托单位: Princeton 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=0839062&HistoricalAwards=false
• 关键词: Collaborate; Research; Modified; Circumpolar; Deep

Abstract"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.

摘要“该奖项是根据2009年的《美国复苏与再投资法》（公法111-5）资助的。”研究人员将专注于描述在南极洲罗斯海中期至夏末浮游植物盛开的高生产率斑块。 要测试和扩展的关键假设是，养分和微营养素（例如Fe）的侵入南极改良的圆形圆形深水（CDW）上的大陆货架上的富含水质量可以控制生产性Ross Ross Ross Ross沿海地区的生物地球化学反应。人们认为，这种增强的生产率可能是导致全球碳循环的重要因素。用于测试上述假设的新型抽样策略将采用远程控制的深（1000m）滑翔机（AUV）来定位和映射CDW，以接近实时测量C（电导率），t（温度），D（压力），D（压力）和明显的光学特性，并将有助于进一步基于船舶采样。与AUV一起的极地研究船的适应性协调提供了一个机会，可以在极地研究中从事正规和非正式的教育以及公众宣传。