Early Career: Upgrade of Isotope Ratio Mass Spectrometer at Boston College

早期职业生涯：波士顿学院同位素比质谱仪升级

• 批准号: 1535824
• 负责人: Corinne Wong
• 金额: $ 16.26万
• 依托单位: Boston College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-03-01 至 2018-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1535824&HistoricalAwards=false
• 关键词: Early; Career; Upgrade; Isotope; Ratio

1535824WongThis grant supports acquisition of two sample introduction systems, a Gas Bench II inlet and Hydrogen Cup, that will be mated to an extant gas source stable isotope ratio mass spectrometer (SIRMS) in Department of Earth and Environmental Science (EES) at Boston College (BC). The SIRMS and peripherals will support the research programs of two early career, tenure-track faculty whose research focuses on questions of past climate and require large numbers of isotopic analyses (several hundred, to a few thousand per study). Support will enable full utilization of analytical equipment that is at present underutilized as sample introduction equipment that allows for high throughput stable isotopic analysis to support high resolution paleoclimate studies is presently lacking. Specific research to be supported with the requested SIRMS includes studies of stable isotopic records of Holocene climate dynamics as recorded in speleothem carbonate from low and mid latitudes caves in the Americas to study regional climate dynamics and its relationship to ocean-atmospheric dynamic changes over decadal to millennial time scales and stable isotopic studies of marine sediments to investigate the linkages between global climate, ice sheet dynamics and Earth system sensitivity to greenhouse-gas forcing over longer time scales. Investigator research that will be fostered by this equipment grant has implications for understanding the relationship between climate dynamics and ecosystem stability, the carbon cycle and sea level dynamics. The investigators will engage undergraduate and graduate students in experiential learning in methods of stable isotope geochemistry and applications to paleoenvironmental research. This support is congruent with NSFs mission of promoting the progress of science and may advance the national prosperity and welfare through advancing knowledge of Earth system climate dynamics and its forcing and feedbacks with the global and regional water cycles as well training students in analytical methods that are widely used in both academia and industry.***

1535824 Wong该赠款支持购买两个样品引入系统，一个气体工作台II入口和氢杯，这将与波士顿学院（BC）地球与环境科学系（EES）现有的气源稳定同位素比质谱仪（SIRMS）相匹配。 SIRMS和外围设备将支持两个早期职业，终身教职的研究计划，他们的研究重点是过去的气候问题，需要大量的同位素分析（几百，每项研究几千）。 提供支助将使目前未充分利用的分析设备能够得到充分利用，因为目前缺乏能够进行高通量稳定同位素分析以支持高分辨率古气候研究的进样设备。 要求的SIRMS支持的具体研究包括研究美洲低、中纬度洞穴中洞穴沉积碳酸盐中记录的全新世气候动态的稳定同位素记录，以研究区域气候动态及其与十年至千年时间尺度上海洋-大气动态变化的关系，以及海洋沉积物的稳定同位素研究，以调查全球气候、冰盖动力学和地球系统在较长时间尺度上对温室气体强迫的敏感性。 这项设备赠款将促进调查员的研究，这对了解气候动态和生态系统稳定性，碳循环和海平面动态之间的关系有影响。 研究人员将让本科生和研究生参与稳定同位素地球化学方法和古环境研究应用的体验式学习。 这种支持与国家科学基金会促进科学进步的使命是一致的，并可能通过提高对地球系统气候动态及其强迫和全球和区域水循环反馈的认识，以及对学生进行在学术界和工业界广泛使用的分析方法的培训，来促进国家的繁荣和福利。