MRI: Acquisition of a Cavity Ring-Down Spectroscopy (CRDS) Water Isotope Analyzer for Interdisciplinary Research and Undergraduate Research Training

MRI：购买光腔衰荡光谱 (CRDS) 水同位素分析仪，用于跨学科研究和本科生研究培训

基本信息

批准号：
2018836
负责人：
Mason Stahl
金额：
$ 18.23万
依托单位：
Union College
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-08-01 至 2023-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2018836&HistoricalAwards=false
关键词：
MRI Acquisition Cavity Ring Down

项目摘要

This Major Research Instrumentation (MRI) program grant supports acquisition a cavity ring-down spectrometer (CRDS) for analysis of stable isotopes of H and O in water and solid geological and biological materials (e.g., sediments, soils, wood and plant tissues). The CRDS will support research and research training at Union College, a non-Ph.D. granting institution. The instrument will support undergraduate student training in methods of stable isotope analysis and related hydrological and paleoenvironmental research applications and the investigators plan regional K-12 outreach and teacher training in the fundamentals of watershed and isotope hydrology. The CRDS will support the investigations of a minimum of 22 faculty researchers from 15 institutions, the lab component of 12 courses, and upwards of 25 undergraduate research students annually, with findings from the proposed research disseminated through presentations at professional meetings and peer-reviewed publications. Proposed research projects align with NSFs mission of promoting the progress of science and advancing national health, prosperity, and welfare by supporting environmental research aimed at understanding the water cycle and the Earth’s climate, which have implications for water resource management and confronting challenges stemming from a changing climate. The CRDS will enable a number of major research projects on the application of stable water isotopes to: (a) characterize aquifer systems and surface-water-groundwater interaction with the aim of assessing risks to water quality (with a focus on arsenic) and availability, (b) examine non-rainfall water (fog/dew) contributions to aquifers in coastal and mountains regions, (c) explore the role of catchment characteristics on streamflow ages and the attending implications for solute and contaminant fate and transport through watersheds. Other hydrologic research includes research on geothermal waters in the Caribbean – work that has important implications for understanding and predicting volcanic unrest. The CRDS will also advance paleoclimate research, with projects on paleoclimate archives from the Peruvian Andes (lake cores and stalagmites), the development of bivalve shell proxies in several environments, and a detailed study on oxygen isotopes in tree rings. In addition, other research projects involving plant-soil water dynamics, terrestrial biogeochemistry, and a watershed isotope study will benefit from the proposed instrumentation. The CRDS system will allow for the high-volume throughput required of the ongoing and proposed research. Furthermore, the CRDS will add the capability to measure δ17O, allowing us to better characterize evaporative processes in the environment – a capability critical to many hydrologic, ecologic, and climatologic studies.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项主要的研究仪器（MRI）计划赠款支持获取腔量环光谱仪（CRD），以分析水中H和O的稳定同位素，以及固体地质和生物学材料（例如，沉积物，土壤，木材和植物组织）。 CRD将支持Union College的研究与研究培训，非PH.D。授予机构。该仪器将支持稳定的同位素分析方法和相关氢和古环境研究应用方法的本科生培训，研究人员计划在流域和同位素水力学基础上进行区域K-12外展和教师培训。 CRD将支持来自15个机构的22名教职员工研究人员的投资，每年12年的实验室组成部分以及25个本科生研究专业的研究人员，并通过在专业会议和同行评审出版物上演讲的拟议研究的发现。拟议的研究项目与NSFS的使命一致，旨在通过支持了解水周期和地球气候的环境研究来促进科学，繁荣和福利，从而促进国家健康，繁荣和福利，这对水资源管理和面对不断变化的气候所造成的挑战具有影响。 The CRDS will enable a number of major research projects on the application of stable water isotopes to: (a) characterize aquifer systems and surface-water-groundwater interaction with the aim of assessing risks to water quality (with a focus on arsenic) and availability, (b) examine non-rainfall water (fog/dew) contributions to aquifers in coastal and mountains regions, (c) explore the role of catchment characteristics on streamflow ages and会议对可溶性和污染物的命运以及通过分水岭运输的影响。其他水文研究包括对加勒比海地热水域的研究 - 对理解和预测火山动乱具有重要意义。 CRD还将推进古气候研究，并通过秘鲁安第斯山脉（湖核心和石匠）的古气候档案项目，几种环境中双壳壳代理的发展以及树环中的氧同位素的详细研究。此外，其他涉及植物土壤水动力学，陆地生物地球化学和分水岭同位素研究的研究项目将从拟议的仪器中受益。 CRDS系统将允许正在进行的研究和拟议研究所需的大量吞吐量。此外，CRD将增加测量δ17O的能力，使我们能够更好地表征环境中的蒸发过程 - 这对于许多水文，生态和气候研究至关重要。这一奖项反映了NSF的法定任务，并通过使用基金会的知识优点和广泛的影响来评估NSF的法定任务，并通过评估值得进行评估。