Collaborative Research: Facility Support: Center for Transformative Environmental Monitoring Programs: Fiber-optic Distributed Sensing

合作研究：设施支持：变革性环境监测项目中心：光纤分布式传感

• 批准号: 1129003
• 负责人: John Selker
• 金额: $ 51.17万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-10-01 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1129003&HistoricalAwards=false
• 关键词: Collaborative; Research; Facility; Support; Center

1129003SelkerThis collaborative grant between Oregon State University (PI: Selker) and the University of Nevada Reno (PI: Tyler; EAR-1128999), supports a three year continuation and enhancement of national multi-user facility support for the Center for Transformative Environmental Monitoring Programs (CTEMPs). CTEMPs was established in 2009 with initial support through the American Recovery and Reinvestment Act (ARRA; EAR-0943682). CTEMPs offers community support for planning, training, equipment lease and field implementation using distributed fiber optic methods including Raman backscatter Distributed Temperature Sensing (DTS) to allow for unprecedented observation of the spatial and temporal distribution of temperature for environmental applications including but not limited to, snow, groundwater and watershed hydrology, aquatic and terrestrial ecology, karst geology, soil science (including permafrost studies), atmospheric boundary layer turbulence and glaciology. Data collected using the CTEMPs DTS systems will be integrated into the CUAHSI Hydrologic Information System (HIS) and CTEMPs will become a Hydrologic Measurement Facility (HMF) Node of CUAHSI. CTEMPs plans training workshops and field deployment for up to 26 research projects a year with this support. CTEMPs currently maintains five DTS system, one of which is high resolution, and 27 km of fiber optic cable. High resolution DTS systems allow for near continuous (0.25 m) and precise (+/- 0.3 deg C) observations of river bottom, lake, or estuary bottom, snow pack, soil horizon or atmospheric temperatures over distances as great at 8 km at high temporal frequency (1 Hz). Temperature precision of +/ 0.01 deg C can be achieved when observation are sampled hourly. When placed in a stream or river, fiber optic DTS allows for observation of the location, temperature, and flux of each groundwater inflow, calculation of an exact heat budget to determine hyporheic exchange, and observation of micro-thermal habitats critical to successful larval fish recruitment. DTS systems were originally developed for applications in the oil industry and for fire detection in high rise buildings. Support for CTEMPs will make this developing technology available to broader scientific community for marginal instrument lease costs and applications for instrument use will be prioritized by an advisory committee with external representation.***

1129003 Selker俄勒冈州州立大学（PI：Selker）和内华达州里诺大学（PI：泰勒; ESTA-1128999）之间的合作赠款，支持三年的持续和加强国家多用户设施支持中心的变革环境监测计划（CTEMPs）。 CTEMPs成立于2009年，最初通过美国复苏和再投资法案（ARRA; CTEMPs-0943682）提供支持。 CTEMPs为规划、培训、设备租赁和现场实施提供社区支持，使用分布式光纤方法，包括拉曼后向散射分布式温度传感（Raman），以允许对环境应用的温度空间和时间分布进行前所未有的观察，包括但不限于雪、地下水和流域水文学、水生和陆地生态学、岩溶地质学、土壤科学（包括永久冻土研究）、大气边界层湍流和冰川学。 使用CTEMPs水文信息系统收集的数据将被纳入CUAHSI水文信息系统（HIS），CTEMPs将成为CUAHSI的水文测量设施（HMF）节点。 CTEMPs计划在这一支持下每年为多达26个研究项目举办培训讲习班和实地部署。 CTEMPs目前拥有五个高清系统，其中一个是高分辨率系统，以及27公里的光纤电缆。 高分辨率遥感系统允许以高时间频率（1 Hz）对河底、湖泊或河口底部、积雪、土壤层或大气温度进行近连续（0.25 m）和精确（+/- 0.3 ℃）的观测，观测距离可达8 km。 当每小时采样观测时，温度精度可达到+/ 0.01 ℃。 当放置在溪流或河流中时，光纤传感器可以观察每个地下水流入的位置，温度和流量，计算精确的热预算以确定潜流交换，并观察对成功招募仔鱼至关重要的微热栖息地。 火灾探测系统最初是为石油工业和高层建筑的火灾探测而开发的。 对CTEMP的支持将使更广泛的科学界能够以边际仪器租赁成本获得这一发展中的技术，仪器使用的应用将由一个有外部代表的咨询委员会优先考虑。