Acquisition of a Liquid Water Isotope Analyzer for Earth and Environmental Science Research

1053929为地球与环境科学研究购置液态水同位素分析仪袁法松（csuohio.edu）克利夫兰州立大学该基金支持购置液态水同位素分析仪，这是一种采用第四代光腔衰荡光谱技术的高科技产品，能够同时测量雪、降雨、溪水、地下水和湖水等自然沃茨的氧和氢同位素比率。该仪器由液态水同位素分析仪、自动注射器和辅助用品组成。PI将使用该仪器进行地球和环境科学的研究和培训。具体的研究项目包括：1）监测凯霍加河及其支流的水和营养流，2）对佩科斯河的不同来源沃茨（融雪、季风径流和地下水）进行净化，3）收集圣路易斯山谷地表沃茨的δ 18 O和δ D数据，4）调查青藏高原湖泊的同位素富集情况。该仪器不仅有助于PI改善和增加研究活动，而且还提高了克利夫兰州立大学（CSU）现有的地球与环境科学计划的教学能力。该仪器将通过CSU和阿克伦大学（UA）的联合教学计划支持学生的研究培训。液态水同位素分析仪，可同时测定天然沃茨的氧、氢同位素比值，日处理量为120个样品。该工具将支持PI的合作研究工作，以解决几个重要的环境问题，包括气候变化，文化富营养化，水和生态系统的可持续性在各种空间和时间尺度。该仪器还将有助于提高克利夫兰州立大学现有地球和环境科学方案本科生和研究生的教学能力。该仪器将用于通过CSU和阿克伦大学（UA）的联合教学计划来支持学生的研究培训。

EAR Proposal# 1053929 Acquisition of a Liquid Water Isotope Analyzer for Earth and Environmental Science ResearchYuan, Fasong (f.yuan06@csuohio.edu) Cleveland State UniversityThe grant supports acquisition of a liquid water isotope analyzer, a high-tech product using a fourth-generation cavity ringdown spectroscopy technology, with capability of simultaneously measuring oxygen and hydrogen isotope ratios for natural waters such as snow, rainfall, stream water, groundwater, and lake water. The instrument consists of a liquid water isotope analyzer, an autoinjector, and auxiliary supplies. The PI will use this instrument for research and training in earth and environmental sciences. Specific research projects include 1) monitoring water and nutrient flows in the Cuyahoga River and its tributaries, 2) deffentiating different source waters (snowmelt, monsoonal runoff, and groundwater) in the Pecos River, 3) collecting delta18O and deltaD data of surface waters in the San Luis Valley, and 4) investigating isotopic enrichment in lakes on the Tibetan Plateau. The instrument not only helps PI improve and increase research activities but also enhances the teaching capability for existing Earth and Environmental Science Program at Cleveland State University (CSU). The instrument will support student research training through a joint-teaching program at CSU and University of Akron (UA). The liquid water isotope analyzer to measure oxygen and hydrogen isotope ratios of natural waters simultaneously, with the capacity of running 120 samples per day. This instrument will support PI's collaborative research efforts to tackle several important environmental problems, including climate change, cultural eutrophication, and water and ecosystem sustainability at a variety of spatial and temporal scales. The instrument will also help enhance the teaching capability for existing Earth and Environmental Science Program at Cleveland State University at undergraduate and graduate levels. The instrument will be used to support student research training through a joint-teaching program at CSU and University of Akron (UA).