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

0929182埃利奥特该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。拨款将在匹兹堡大学地质与行星科学系的稳定同位素实验室提供一个新的实验室技术员职位，为期三年。该技术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，这些项目将得以集中精力：1)利用创新的稳定同位素示踪剂研究水圈、生物圈和大气的相互作用（ä15N， ä18O， Ä17O， ä13C， ä34S）；2)开发使用质量独立Ä17O-NO3分析的新方法，以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，以支持和简化自然和人为影响的集水区和当代湖泊系统的水文调查；4)利用稳定同位素（碳酸盐ä18O和ä13C，有机质ä15N和ä13C）进行高分辨率全新世气候重建，研究环境变化在文化发展和人-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.