Early Career: Acquisition of a gas source mass spectrometer, technical support, and outreach for research in paleoclimate

早期职业生涯：购买气源质谱仪、技术支持和古气候研究推广

• 批准号: 0949191
• 负责人: Aradhna Tripati
• 金额: $ 30万
• 依托单位: University of California-Los Angeles
• 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: 2011-03-15 至 2014-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0949191&HistoricalAwards=false
• 关键词: Early; Career; Acquisition; gas; source

0949191TripatiThis award provides funding to acquire a gas-source, isotope-ratio mass spectrometer for the analysis of multiply substituted carbon dioxide isotopologues, which form the basis of the new carbonate ?clumped isotope? thermometer. Studies by the early career PI and collaborators during her postdoctoral research demonstrated that the instrumentation awarded here offers unparalleled opportunities for addressing a range of questions in paleoclimatology. For example, accurate constraints on past temperature are critical for documenting climate change and resolving its causes. Paleoclimate records also have the potential to inform us about the amplitude and regional pattern of climate change and about the processes responsible for such change. In addition to being essential to understanding the climate evolution of the Earth over a range of timescales, accurate records of temperature are relevant to outstanding questions in paleoceanography (constraining the density structure of the ocean in the past), biogeochemistry (the nature silicate weathering feedbacks), carbonate sedimentology (the burial and cementation history of reef carbonates), geobiology (the role of climate change in driving major speciation and extinction events in the Paleozoic), and tectonics (the elevation history of the Tibetan Plateau). The instrumentation will support the development of a state-of-the art lab at UCLA encouraging collaborative research projects with outside scientists, including state universities and non-Ph.D. granting institutions. The instrument will be integrated into research activities in the classroom, and utilized intensively by students in thesis research. ***

0949191Tripati 该奖项提供资金购买一台气源同位素比质谱仪，用于分析多重取代的二氧化碳同位素体，这些同位素体构成了新碳酸盐“聚集同位素”的基础。温度计。早期职业 PI 和合作者在博士后研究期间的研究表明，这里授予的仪器为解决古气候学中的一系列问题提供了无与伦比的机会。例如，准确限制过去的温度对于记录气候变化并解决其原因至关重要。古气候记录还有可能让我们了解气候变化的幅度和区域模式以及导致这种变化的过程。除了对于了解地球在一定时间尺度上的气候演变至关重要之外，准确的温度记录还与古海洋学（限制过去海洋的密度结构）、生物地球化学（自然硅酸盐风化反馈）、碳酸盐沉积学（珊瑚礁碳酸盐的埋藏和胶结历史）、地球生物学（气候变化在驱动主要物种形成和灭绝事件中的作用）中的突出问题相关。 古生代）和构造学（青藏高原的海拔历史）。该仪器将支持加州大学洛杉矶分校最先进的实验室的发展，鼓励与外部科学家（包括州立大学和非博士生）的合作研究项目。授予机构。该仪器将融入课堂研究活动，并由学生在论文研究中集中使用。 ***