Constraining Upper-Ocean Carbon Export with Biogeochemical Profiling Floats
利用生物地球化学剖面浮标限制上层海洋碳输出
基本信息
- 批准号:2032754
- 负责人:
- 金额:$ 27.44万
- 依托单位:
- 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:2020-05-08 至 2024-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
A goal in chemical oceanography is to advance our understanding of the global carbon cycle, specifically to quantify the transfer of carbon from the surface ocean to depth through the sinking of particles produced by marine organisms. Yet, modern global estimates of this process (commonly called carbon export) differ by over 100%. These estimates are often derived from regional relationships between ocean measurements and satellite observations that are then applied globally. Persistent differences between the satellite and field-based estimates of carbon export have been found throughout the ocean, suggesting that improvements are needed. This project will determine whether profiling floats equipped with chemical sensors can be used to estimate the export of carbon in the ocean. Floats will be deployed at Ocean Station Papa, but the approach is scalable in nature and could be used to validate and improve the satellite algorithms used for global carbon export determinations. The project will support a female, early career scientist and a postdoc, as well as facilitate international collaboration with Canadian scientists. Additionally, the results may assist the National Aeronautics and Space Administration (NASA) EXPORTS campaign as well as other satellite carbon export development efforts. Modern global estimates of the biological pump differ by over 100% (~5 to 12 Pg C yr-1) making it challenging to determine the role of marine biogeochemical (BGC) cycling in modern climate and climate variability. Global carbon export estimates are often derived from regional empirical relationships between field and satellite observations that are then applied globally. Persistent discrepancies between unique satellite algorithms and unique geochemical approaches suggest that accurately quantifying the biological pump remains a fundamental research goal. This project will assess the capability of using BGC profiling floats to estimate the export of distinct biogenic carbon pools (dissolved and particulate organic carbon, and particulate inorganic carbon). By using BGC floats to close multiple upper ocean tracer budgets this project will address two known issues common to other geochemical approaches: assumptions about (1) dissolved organic carbon cycling and (2) the integration depth used for annual carbon export assessments. The method will be tested at Ocean Station Papa, but is scalable in nature and could be used to develop a carbon export database suitable for the validation and training of satellite algorithms required for global carbon export determinations. Results from the floats will be compared to satellite carbon export algorithm estimates over the 5-year float lifetimes. Ten years of existing BGC data from profiling floats and a mooring in the region will also be used to provide further context about interannual variability.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.
化学海洋学的一个目标是促进我们对全球碳循环的理解,特别是通过海洋生物产生的颗粒下沉来量化碳从海洋表层向深处的转移。然而,现代全球对这一过程(通常称为碳输出)的估计相差超过100%。这些估计数往往来自海洋测量与卫星观测之间的区域关系,然后在全球范围内应用。在整个海洋中发现,基于卫星和实地的碳输出估计数之间持续存在差异,这表明需要改进。该项目将确定配备化学传感器的剖面浮标是否可用于估计海洋中的碳输出。浮标将部署在Papa海洋站,但该方法具有可扩展性,可用于验证和改进用于全球碳出口确定的卫星算法。该项目将支持一名女性早期职业科学家和一名博士后,并促进与加拿大科学家的国际合作。此外,这些结果可能有助于美国国家航空航天局(NASA)的出口活动以及其他卫星碳出口发展工作。现代全球生物泵的估计值相差超过100%(~5至12 Pg C yr-1),这使得确定海洋生物地球化学(BGC)循环在现代气候和气候变率中的作用具有挑战性。全球碳输出估计数往往来自实地观测和卫星观测之间的区域经验关系,然后在全球范围内应用。独特的卫星算法和独特的地球化学方法之间的持续差异表明,准确地量化生物泵仍然是一个基本的研究目标。该项目将评估使用BGC剖面浮标估计不同生物源碳库(溶解和颗粒有机碳以及颗粒无机碳)输出的能力。通过使用BGC浮标来关闭多个上层海洋示踪剂预算,该项目将解决其他地球化学方法常见的两个已知问题:关于(1)溶解有机碳循环和(2)用于年度碳输出评估的整合深度的假设。该方法将在Papa海洋站进行测试,但具有可扩展性,可用于开发碳出口数据库,适用于全球碳出口确定所需的卫星算法的验证和培训。浮动的结果将与卫星碳输出算法估计的5年浮动寿命进行比较。来自该地区剖面浮标和系泊的10年BGC现有数据也将用于提供有关年际变化的进一步背景。该奖项反映了NSF的法定使命,并被认为值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估来支持。
项目成果
期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Partitioning the Export of Distinct Biogenic Carbon Pools in the Northeast Pacific Ocean Using a Biogeochemical Profiling Float
- DOI:10.1029/2021gb007178
- 发表时间:2022-02-01
- 期刊:
- 影响因子:5.2
- 作者:Huang, Yibin;Fassbender, Andrea J.;Bif, Mariana Bernardi
- 通讯作者:Bif, Mariana Bernardi
Annual Net Community Production of Particulate and Dissolved Organic Carbon From a Decade of Biogeochemical Profiling Float Observations in the Northeast Pacific
- DOI:10.1029/2020gb006599
- 发表时间:2020-10-01
- 期刊:
- 影响因子:5.2
- 作者:Haskell, W. Z., II;Fassbender, A. J.;Plant, J. N.
- 通讯作者:Plant, J. N.
Depth‐Resolved Net Primary Production in the Northeast Pacific Ocean: A Comparison of Satellite and Profiling Float Estimates in the Context of Two Marine Heatwaves
深度——东北太平洋解析的净初级生产:两次海洋热浪背景下卫星和剖面浮标估计的比较
- DOI:10.1029/2021gl093462
- 发表时间:2021
- 期刊:
- 影响因子:5.2
- 作者:Long, J. S.;Fassbender, A. J.;Estapa, M. L.
- 通讯作者:Estapa, M. L.
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Phoebe Lam其他文献
Improvements in the determination of attogram-sized ^231Pa in dissolved and particulate fractions of seawater via multi-collector inductively coupled plasma mass spectrometry
通过多接收器电感耦合等离子体质谱法改进了海水溶解和颗粒部分中阿克大小^231Pa 的测定
- DOI:
- 发表时间:
2023 - 期刊:
- 影响因子:3.9
- 作者:
Pu Zhang;Yanbin Lu;Zhe Zhang;R. Edwards;Robert Anderson;Phoebe Lam - 通讯作者:
Phoebe Lam
Teacher unfairness in adolescence, educational attainment, and adult Health: The role of school- and individual-level perceptions tested in a national cohort study
青少年时期教师的不公平、教育程度和成人健康:一项全国队列研究中对学校和个人层面认知作用的检验
- DOI:
10.1016/j.ssmph.2025.101810 - 发表时间:
2025-06-01 - 期刊:
- 影响因子:3.100
- 作者:
Shanting Chen;Stephanie Koning;Jessica Polos;Phoebe Lam;Taylor Hargrove;Natalie Ebner;Jacob Aronoff;Thomas McDade - 通讯作者:
Thomas McDade
Inflammation and reward processing: A meta-analysis
炎症与奖赏处理:一项元分析
- DOI:
10.1016/j.bbi.2024.12.067 - 发表时间:
2024-11-01 - 期刊:
- 影响因子:7.600
- 作者:
Iris Ka-Yi Chat;Phoebe Lam;Auburn Stephenson;Madeline Pike;Robin Nusslock;Lauren Alloy - 通讯作者:
Lauren Alloy
231. Inflammation and Reward Processing: A Meta-Analysis
- DOI:
10.1016/j.biopsych.2024.02.466 - 发表时间:
2024-05-15 - 期刊:
- 影响因子:
- 作者:
Iris Ka-Yi Chat;Phoebe Lam;Auburn Stephenson;Madeline Pike;Robin Nusslock;Lauren Alloy - 通讯作者:
Lauren Alloy
Phoebe Lam的其他文献
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{{ truncateString('Phoebe Lam', 18)}}的其他基金
Collaborative Research: US GEOTRACES GP17-ANT: Characterizing the composition, scavenging efficiency and bioavailability of size fractionated particles
合作研究:美国 GEOTRACES GP17-ANT:表征尺寸分级颗粒的组成、清除效率和生物利用度
- 批准号:
2123303 - 财政年份:2021
- 资助金额:
$ 27.44万 - 项目类别:
Continuing Grant
Collaborative Research: US GEOTRACES GP17-OCE: Size-Fractionated Particle Collection and Analysis from Ultra-Oligotrophic to Antarctic Waters
合作研究:US GEOTRACES GP17-OCE:从超贫营养到南极水域的尺寸分级颗粒收集和分析
- 批准号:
2049297 - 财政年份:2021
- 资助金额:
$ 27.44万 - 项目类别:
Continuing Grant
Collaborative Research: Management and Implementation of US GEOTRACES GP17 Section: Amundsen Sea Sector of the Antarctic Continental Margin (GP17-ANT)
合作研究:美国GEOTRACES GP17部分的管理和实施:南极大陆边缘阿蒙森海段(GP17-ANT)
- 批准号:
2023230 - 财政年份:2021
- 资助金额:
$ 27.44万 - 项目类别:
Standard Grant
Collaborative Research: Estimation of particle aggregation and disaggregation rates from the inversion of chemical tracer data
合作研究:通过化学示踪数据反演估计颗粒聚集和解聚率
- 批准号:
1829614 - 财政年份:2018
- 资助金额:
$ 27.44万 - 项目类别:
Standard Grant
US GEOTRACES PMT: the geochemistry of size-fractionated suspended particles collected by in-situ filtration
US GEOTRACES PMT:通过原位过滤收集的按尺寸分级的悬浮颗粒的地球化学
- 批准号:
1736601 - 财政年份:2017
- 资助金额:
$ 27.44万 - 项目类别:
Standard Grant
Collaborative Research: Management and Implementation of the US GEOTRACES Pacific Meridional Transect
合作研究:美国GEOTRACES太平洋经向断面的管理和实施
- 批准号:
1657781 - 财政年份:2017
- 资助金额:
$ 27.44万 - 项目类别:
Continuing Grant
Collaborative Research: GEOTRACES Arctic Section: The Geochemistry Size-fractionated Suspended Particles Collected by in-situ Filtration
合作研究:GEOTRACES 北极部分:通过原位过滤收集的地球化学尺寸分级悬浮颗粒
- 批准号:
1535854 - 财政年份:2015
- 资助金额:
$ 27.44万 - 项目类别:
Continuing Grant
Collaborative Research: GEOTRACES Arctic Section: The Geochemistry Size-fractionated Suspended Particles Collected by in-situ Filtration
合作研究:GEOTRACES 北极部分:通过原位过滤收集的地球化学尺寸分级悬浮颗粒
- 批准号:
1438977 - 财政年份:2015
- 资助金额:
$ 27.44万 - 项目类别:
Continuing Grant
Collaborative Research: GEOTRACES Pacific Section: The Geochemistry of Size-fractionated Suspended Particles Collected by In-situ Filtration
合作研究:GEOTRACES 太平洋部分:原位过滤收集的尺寸分级悬浮颗粒的地球化学
- 批准号:
1518110 - 财政年份:2014
- 资助金额:
$ 27.44万 - 项目类别:
Continuing Grant
Collaborative Research: Development of a Tender-Energy Microspectroscopy and Imaging User Facility for Earth Sciences at NSLS and NSLS-II
合作研究:NSLS 和 NSLS-II 地球科学嫩能显微光谱和成像用户设施的开发
- 批准号:
1128221 - 财政年份:2013
- 资助金额:
$ 27.44万 - 项目类别:
Standard Grant
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