Using Oxygen Isotopes to Constrain Ozone Sources and Sinks

使用氧同位素限制臭氧源和汇

基本信息

  • 批准号:
    0856274
  • 负责人:
  • 金额:
    $ 29.97万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2009
  • 资助国家:
    美国
  • 起止时间:
    2009-07-01 至 2012-06-30
  • 项目状态:
    已结题

项目摘要

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Ozone plays a critical role in global and regional atmospheric chemistry and has a significant impact on global climate, making it vital to understand ozone source and sink processes. Although substantial progress has been made, there are many open questions regarding ozone dynamics, long-rage transport, and the importance of stratospheric exchange. Variation in the oxygen isotope composition of ozone provides a window into these processes, however, data are very limited because existing methods for sampling ozone for isotopic analysis are complex, cumbersome, and impractical for routine application. Uncertainties in laboratory-determined pressure and temperature dependencies of ozone isotopic composition of ozone also hinder progress. The thrusts of this project are the development and application of a new methodology for determining the oxygen isotopic composition of ozone molecules, and laboratory experiments to determine the pressure and temperatures dependencies of ozone isotope effects under simulated tropospheric conditions. Analysis of daily/nightly ozone isotope composition measurements on the Purdue University campus and in a network of stations across the U.S. for a one-year period will provide new data on the observed pressure and temperature dependence of ozone isotope composition in the troposphere. These data will also give insight into the kinetic isotope effects of ozone oxidation reactions in the atmosphere. The laboratory studies will reduce uncertainties in the theoretical pressure and temperature dependence of ozone isotopic composition, which will then be compared with the field data. In addition to developing an in situ ozone proxy, the data from the laboratory experiments provide insights into the internal distribution of oxygen isotopes in ozone, which will further our understanding of mass independent isotope effects. In addition to improving the understanding of atmospheric ozone cycling, the project will support an early-career investigator, an under-represented group doctoral student, and will continue development of relationships between university researchers and state government agencies. Undergraduate students will also be part of the research team. A volunteer ozone sampling component will incorporate community participation into the project.
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。臭氧在全球和区域大气化学中发挥着关键作用,对全球气候产生重大影响,因此了解臭氧源和汇过程至关重要。虽然已经取得了实质性进展,但在臭氧动力学、远距离迁移和平流层交换的重要性方面仍存在许多悬而未决的问题。臭氧的氧同位素组成的变化为这些过程提供了一个窗口,然而,数据非常有限,因为现有的臭氧同位素分析采样方法复杂,繁琐,不切实际的常规应用。实验室确定的臭氧同位素组成的压力和温度依赖性的不确定性也阻碍了进展。该项目的重点是开发和应用一种新的方法来确定臭氧分子的氧同位素组成,并进行实验室实验,以确定模拟对流层条件下臭氧同位素效应对压力和温度的依赖性。对普渡大学校园和美国各地一个台站网络为期一年的每日/夜间臭氧同位素组成测量结果进行分析,将提供有关对流层臭氧同位素组成对观测压力和温度依赖性的新数据。这些数据还将使人们深入了解大气中臭氧氧化反应的动力学同位素效应。实验室研究将减少臭氧同位素组成的理论压力和温度依赖性的不确定性,然后将其与实地数据进行比较。除了开发一个原位臭氧代理,从实验室实验的数据提供了深入了解臭氧中的氧同位素的内部分布,这将进一步我们的质量无关的同位素效应的理解。除了提高对大气臭氧循环的理解外,该项目还将支持一名早期职业调查员,一名代表性不足的博士生,并将继续发展大学研究人员和州政府机构之间的关系。本科生也将成为研究团队的一部分。一个自愿臭氧取样组成部分将把社区参与纳入该项目。

项目成果

期刊论文数量(0)
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Greg Michalski其他文献

Complementing the Numbers: A Text Mining Analysis of College Course Withdrawals.
补充数字:大学课程退学的文本挖掘分析。
  • DOI:
  • 发表时间:
    2011
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Greg Michalski
  • 通讯作者:
    Greg Michalski
In Their Own Words: A Text Analytics Investigation of College Course Attrition
用他们自己的话说:大学课程流失的文本分析调查
  • DOI:
  • 发表时间:
    2014
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Greg Michalski
  • 通讯作者:
    Greg Michalski
Analyzing the Origins of Atmospheric Aerosols
分析大气气溶胶的起源
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
    David Geng;Greg Michalski
  • 通讯作者:
    Greg Michalski
Mining Text Data: Making Sense of What Students Tell Us. Professional File. Article 139, Fall 2016.
挖掘文本数据:理解学生告诉我们的内容。
  • DOI:
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    John Zilvinskis;Greg Michalski
  • 通讯作者:
    Greg Michalski
Blockchain-based isotopic big data-driven tracing of global PM sources and interventions
基于区块链的同位素大数据驱动的全球 PM 源追踪和干预
  • DOI:
    10.1038/s41467-025-59220-4
  • 发表时间:
    2025-04-25
  • 期刊:
  • 影响因子:
    15.700
  • 作者:
    Yuming Huang;Xiangyu Li;Yuehan Wu;Chaoyang Xue;Jiashuo Li;Yongfeng Lin;Wei Nie;Xian Liu;Qian Liu;Greg Michalski;Jingwei Zhang;Zheng Zong;Dawei Lu;Guibin Jiang
  • 通讯作者:
    Guibin Jiang

Greg Michalski的其他文献

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{{ truncateString('Greg Michalski', 18)}}的其他基金

REU Site: Analyze This: Analytical Chemistry Applied to Interdisciplinary Research
REU 网站:分析这一点:分析化学应用于跨学科研究
  • 批准号:
    1950817
  • 财政年份:
    2020
  • 资助金额:
    $ 29.97万
  • 项目类别:
    Standard Grant
P2C2: Evaluating Mean Annual Precipitation in the Southwestern United States (US) during the Pliocene-Pleistocene Transition Using Nitrate D17O Anomalies
P2C2:使用硝酸盐 D17O 异常评估上新世-更新世过渡期间美国西南部 (US) 的年平均降水量
  • 批准号:
    1903646
  • 财政年份:
    2019
  • 资助金额:
    $ 29.97万
  • 项目类别:
    Continuing Grant
REU Site: Analyze This: Analytical Chemistry Applied to Interdisciplinary Research
REU 网站:分析这一点:分析化学应用于跨学科研究
  • 批准号:
    1560244
  • 财政年份:
    2016
  • 资助金额:
    $ 29.97万
  • 项目类别:
    Standard Grant
Development of New Instrumention (Early Career): Laser Decomposition Isotope Interface (LADII)- Total Isotope Analysis of Nanomolar Amounts of Sulfate and Nitrate
新仪器的开发(早期职业生涯):激光分解同位素界面 (LADII) - 纳摩尔量的硫酸盐和硝酸盐的总同位素分析
  • 批准号:
    0929981
  • 财政年份:
    2009
  • 资助金额:
    $ 29.97万
  • 项目类别:
    Standard Grant
Collaborative Research: Impacts of urbanization on nitrogen biogeochemistry in xeric ecosystems
合作研究:城市化对干旱生态系统氮生物地球化学的影响
  • 批准号:
    0918708
  • 财政年份:
    2009
  • 资助金额:
    $ 29.97万
  • 项目类别:
    Standard Grant
A new regional paleo-precipitation proxy: oxygen isotopes in desert nitrate
新的区域古降水代理:沙漠硝酸盐中的氧同位素
  • 批准号:
    0922114
  • 财政年份:
    2009
  • 资助金额:
    $ 29.97万
  • 项目类别:
    Standard Grant

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以磷酸盐三氧同位素为示踪剂定量阐明水圈中磷酸盐的循环
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