EARLY CAREER INVESTIGATOR SUPPORT: Development of a Regional Stable Isotope Laboratory for Earth Science Research

该奖项由《2009年美国复苏和再投资法案》(公法111-5)资助。赠款将支持匹兹堡大学地质和行星科学系稳定同位素实验室的一个新的实验室技术员职位，为期三年。该技术人员将负责实验室现有的两台稳定同位素比质谱仪(SIRMS)的维护、操作和学生培训。在实验室的技术援助下，公共投资机构将把他们的工作重点放在：1)使用创新的稳定同位素示踪剂(ä15N、ä18O、ä17O、ä13C、ä34S)研究水圈、生物圈和大气之间的相互作用；2)开发新的方法，利用独立于质量的ä17O-NO3分析来检查大气硝酸盐对水质、森林和河口健康的影响；3)开发高通量水同位素(ä18O、äD)能力，以支持和简化对自然和人类影响的流域和现代湖泊系统的水文调查；以及4)利用稳定的同位素替代物(碳酸盐ä18O和ä13C、有机质ä15N和ä13C)进行高分辨率的全新世气候重建，并调查环境变化在文化发展和人与环境相互作用中的作用。

0929182ElliottThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Granted funds will support a new laboratory technician position in the stable isotope laboratory of the Department of Geology and Planetary Science, University of Pittsburgh over a three year period. The technician will be responsible for the maintenance, operation and student training on two existing stable isotope ratio mass spectrometers (SIRMS) in the laboratory. With technical assistance in the lab, the PIs will be freed to focus their efforts on: 1) research on the interaction of the hydrosphere, biosphere and atmosphere using innovative stable isotope tracers (ä15N, ä18O, Ä17O, ä13C, ä34S); 2) development of new methods for using mass independent Ä17O-NO3 analyses to examine the influence of atmospheric nitrate on water quality, forest and estuarine health; 3) development of high throughput water isotope (ä18O, äD) capabilities to support and streamline hydrologic investigations of natural and human-impacted catchments and contemporary lake systems; and 4) utilization of stable isotope proxies (carbonate ä18O and ä13C, organic matter ä15N and ä13C) for high resolution Holocene climate reconstructions and investigations of the role of environmental change in cultural development and human-environment interactions.