Collaborative Research: Global Ocean Survey of Dissolved Iron and Aluminum and Aerosol Iron and Aluminum Solubility Supporting the CLIVAR Repeat Hydrography Project (2007-2009).

合作研究：溶解铁和铝以及气溶胶铁和铝溶解度的全球海洋调查支持 CLIVAR 重复水文学项目（2007-2009 年）。

• 批准号: 0649505
• 负责人: Joseph Resing
• 金额: $ 22.29万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-03-15 至 2013-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0649505&HistoricalAwards=false
• 关键词: Collaborative; Research; Global; Ocean; Survey

OCE-0649505Scientists from Florida State University, the University of Hawaii, and the University of Washington will continue the trace metal component of the CLIVAR/CO2 Repeat Hydrography Program with cruises in the Indian Ocean (I8S/I9N, I6S, I7N or S4P). The researchers will use their clean rosette/GoFlo system to collect trace metal profiles at 1' spacing (12 depths to 1000 m). These samples will be analyzed on board for dissolved Al and Fe using Flow Injection Analysis. Subsamples will be collected and acidified for shore-based analysis of dissolved Mn, Fe, Co, Ni, Cu, Zn, Cd, and Pb using either isotope dilution inductively coupled plasma mass spectrometry (ICPMS) and/or standard additions ICPMS. The colloidal fraction of these samples will be obtained using tangential flow ultrafiltration (1000Da) and the low molecular weight fraction will be analyzed for Al, Mn, Fe, Co, Ni, Cu, Zn, Cd, and Pb. In addition, suspended matter filters will be analyzed for particulate Al, Fe, and other trace elements. Besides seawater samples, aerosol samples also will be collected using a MOUDI (micro-orifice uniform deposit impactor) cascade impactor to obtain size-fractionated aerosol samples that will be analyzed for total aerosol Al and Fe, and ultrapure water soluble aerosol Al, Fe, other trace elements, and major ions. In terms of broader impacts, results from basin scale sections of dissolved and particulate trace elements combined with the total and soluble aerosol trace element data will improve our understanding of global ocean biogeochemical cycles, as well as improve the predictive capabilities of coupled ocean/atmospheric carbon cycle models. Two graduate students from Florida State University, one post-doc and one graduate student from the University of Hawaii, and one graduate student from the University of Washington will be supported and trained as part of this project.

来自佛罗里达州立大学，夏威夷大学和华盛顿大学的OCE-0649505Scientists将继续使用印度洋的Cruises（I8S/I9N，I6S，I7N或S4P），继续Clivar/CO2重复水文计划的微量金属组件。 研究人员将使用其干净的玫瑰花结/Goflo系统在1'间距（12至1000 m）的情况下收集痕量金属曲线。 这些样品将在船上进行分析，以使用流量注射分析进行溶解的Al和Fe。 将收集并酸化子样本，以使用溶解的Mn，Fe，Co，Ni，Cu，Zn，Cd和Pb使用同位素稀释电阻性等离子体等离子体质谱法（ICPM）和/或标准添加剂ICPMS。 这些样品的胶体分数将使用切向流量超滤（1000da）获得，并且将对AL，MN，MN，FE，CO，NI，CU，CU，CU，Zn，CD和PB分析低分子量分数。 此外，将分析悬浮物过滤器的颗粒，Fe和其他微量元素。 除海水样品外，还将使用Moudi（微孔均匀沉积物撞击器）级联撞击器收集气溶胶样品，以获取尺寸算法的气溶胶样品，这些样品将进行分析，以分析总气溶胶AL和FE，以及超普鲁尔水溶液AL，FE，FE，FE，FE，其他微量元素和大型离子。 就较广泛的影响而言，盆地量表的溶解和颗粒物痕量元件的剖面与总和可溶性气溶胶痕量元素数据的结果将改善我们对全球海洋生物地球化学周期的理解，并提高耦合的海洋/大气碳循环模型的预测能力。 来自佛罗里达州立大学的两名研究生，一名研究生和一名来自夏威夷大学的研究生，以及华盛顿大学的一名研究生，作为该项目的一部分。