MRI: Acquisition of Liquid Water Isotope Analyzer Capability for Advancing Hydrologic Research in the Baltimore Ecosystem Study LTER

1039831欢迎该MRI奖资助购买液态水同位素分析仪，以支持巴尔的摩生态系统研究(BES)LTER的研究。LWIA将用于生物地球化学分水岭研究，并补充密歇根大学现有的仪器。由于快速和强大的能力，新仪器将被用于测量氧和氢同位素比率，以限制城市水和营养物质的流动路径、通量和储存。LWIA可以用来限制影响水循环和储存的相变过程(分馏同位素)。直接研究目标包括：评估河流基流与城市基础设施之间的相互作用；分配城市暴雨径流中的水源；确定工程雨水入渗实践对地下水补给的影响；量化城市环境中的蒸散量；以及评估植被与工程城市结构之间的相互作用。该仪器将支持来自六个教育和研究机构以及两个联邦机构的12名研究人员的研究工作。最终的影响应最终跨越参与东亚经济社会长期稳定研究的34个共同绩效指标和70个合作者。学生应该能够接触到仪器和收集的数据。由于UMBC和卡里生态系统研究所REU将参与此次收购，代表人数不足的团体将参与其中。此外，UMBC还设立了NSF IGERT，以促进城市水问题的教育。PI将负责全面管理和维护。该仪器将被安置在密歇根大学技术研究中心最近翻新的空间中。一名半职技术员将致力于日常操作和维护。将使用在线调度系统来调度仪器时间。***

1039831WeltyThis MRI award funds the acquisition of a liquid water isotope analyzer to support research at the Baltimore Ecosystem Study (BES) LTER. The LWIA will be used in biogeochemical watershed research and compliment current instrumentation at UMBC. Due to rapid and robust capabilities, the new instrument will be used to measure oxygen and hydrogen isotope ratios in order to constrain urban water and nutrient flow paths, fluxes, and storage. The LWIA can be used to constrain phase change processes (which fractionate isotopes) which impact water cycling and storage. Direct research goals involve evaluating interactions between stream base-flow and urban infrastructure, source apportioning water in urban storm flows, determining impacts from engineered stormwater infiltration practices on groundwater recharge, quantifying evapotranspiration in urban settings and assessing interaction between vegetation and engineered urban structures. This instrumentation will support research efforts of 12 investigators from six educational and research institutions and two federal agencies. The eventual impact should eventually span the 34 co-PIs and 70+ collaborators involved in the BES LTER. Students should have access to the instrument and collected data. Underrepresented groups will be involved as UMBC and the Cary Institute of Ecosystem Studies REU will interface with this acquisition. In addition, UMBC has an NSF IGERT to foster education for urban water issues. The PI will be responsible for overall management and maintenance. The instrument will be housed in the Technology Research Center at UMBC in recently-renovated space. A half-time technician will be dedicated to day-to-day operation and maintenance. An online scheduling system will be used to schedule instrument time. ***