GEOTRACES GP-17 OCE: Measurement of 7Be as a Tracer of Upper Ocean Processes
GEOTRACES GP-17 OCE:测量 7Be 作为上层海洋过程的示踪剂
基本信息
- 批准号:2147723
- 负责人:
- 金额:$ 27.61万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-08-01 至 2025-07-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
The International GEOTRACES Program was established to identify processes and quantify fluxes that control the distributions of key trace elements and their isotopes in the ocean as these chemical species play important roles as nutrients, as tracers of current and past oceanographic processes, and as contaminants derived from human activity. This is a proposal to make measurements of one such species (the radioactive isotope Beryllium-7) in the water column and on aerosols during the US GEOTRACES GP17-OCE section of the South Pacific and Southern Oceans. Beryllium-7 is a tracer that, because of its half-life (53.3 days), allows the study of processes such as biological production, nutrient regeneration, and atmospheric deposition, which occur over seasonal time scales and shallow depths (200m). The data will be used to derive important biogeochemical rate information pertinent to interpreting sources and transformations of the extensive suite of trace elements and isotopes that will be measured during the expedition. The proposed work will measure beryllium-7 in the surface waters and in the lower atmosphere to provide estimates of the atmospheric input of relevant trace elements and isotopes. The atmospheric input into the global ocean is an important budgetary component of numerous chemical species, but there is little-to-no data from this region. Determination of the atmospheric input and its variability will allow observation of the oceanic response to this flux along the cruise track. The water column measurements of beryllium-7 will be used as a tracer of physical processes, such as mixing and upwelling, which redistribute biologically active species. The rate of oxygen utilization (OUR) within the upper thermocline will also be determined by water column measurements of beryllium-7 coupled with hydrographic data and observed oxygen distributions. Accurate characterization of this process within 200m of the euphotic zone, where carbon utilization is most intense, has been difficult owing to limitations of other available techniques which are characterized by multiyear to decadal timescales that likely miss the rapid organic matter remineralization occurring along shallow isopycnal surfaces. The seasonal timescale of beryllium-7 will allow for estimation of OUR within the shallow water just beneath the euphotic zone, where the most significant remineralization occurs. This research will support undergraduate researchers in a minority serving institution.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.
建立了国际地理位置计划,以识别流程和量化磁通量,以控制关键痕量元素及其在海洋中的分布,因为这些化学物质作为当前和过去海洋学过程的示踪剂起着重要的作用,并从目前和过去的海洋学过程中起着重要作用,并从人类活动。这是一项提议,旨在对水柱中的一种此类物种(放射性同位素颗粒-7)以及在美国南太平洋和南部海洋的美国地理gp17-oce部分期间的气溶胶进行测量。 Beryllium-7是一种示踪剂,由于其半衰期(53.3天),它允许研究生物生产,营养再生和大气沉积等过程,这些过程发生在季节性的时间尺度和浅层深度(200m)上。 这些数据将用于得出与解释轨迹元素和同位素的广泛套件转换有关的重要生物地球化学速率信息,这些信息和转换将在探险期间测量。拟议的工作将测量地表水中和较低大气中的铍-7,以提供相关痕量元素和同位素的大气输入的估计。进入全球海洋的大气输入是许多化学物种的重要预算组成部分,但是该地区几乎没有数据。确定大气输入及其可变性将使沿巡航轨道对这种通量的海洋反应观察。铍7的水柱测量将用作物理过程的示踪剂,例如混合和上升流,这些过程重新分布生物学活性物质。上部热跃层中的氧气利用率(我们)也将由铍-7的水柱测量以及水文数据和观察到的氧分布来确定。 由于对其他可用技术的局限性的局限性,其特征是多年来的多年到衰老的时间表可能错过了可能错过沿浅层层状表面的快速有机物,因此在急转区的200m中的准确表征(最强烈的碳利用率)的准确表征非常困难。 Beryllium-7的季节性时间尺度将允许在发生最重要的回忆性的舒适区下方的浅水中估算我们的浅水。这项研究将支持少数派服务机构的本科研究人员。该奖项反映了NSF的法定任务,并被认为是值得通过基金会的知识分子优点和更广泛的影响审查标准通过评估来支持的。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Mark Stephens其他文献
Analysis of Cigarette Puffs on Serum Cholesterol and Urea Level in Smokers and Non-Smokers with in VOM Area of Plateau State , Nigeria
尼日利亚高原州VOM地区吸烟者和非吸烟者吸食香烟对血清胆固醇和尿素水平的影响分析
- DOI:
- 发表时间:
2015 - 期刊:
- 影响因子:0
- 作者:
Elena Spieker;T. Sbrocco;K. Theim;D. Maurer;Dawn Johnson;E. Bryant;J. Bakalar;Natasha A. Schvey;R. Ress;D. Seehusen;David A. Klein;E. Stice;J. Yanovski;Linda Chan;Shari Gentry;Carol Ellsworth;Joanne W. Hill;M. Tanofsky;Mark Stephens - 通讯作者:
Mark Stephens
Sleep in dementia assessment may require a multidisciplinary approach.
痴呆症评估中的睡眠可能需要多学科方法。
- DOI:
- 发表时间:
2006 - 期刊:
- 影响因子:0
- 作者:
E. Eeles;Mark Stephens;C. Benedict;J. Beaverstock;M. Gupta;Mike Page - 通讯作者:
Mike Page
Sandbox
- DOI:
10.1007/978-1-4419-5906-5_791 - 发表时间:
2011 - 期刊:
- 影响因子:0
- 作者:
Mark Stephens - 通讯作者:
Mark Stephens
An Examination of the Interpersonal Model in Adolescent Military-Dependents at High-Risk for Adult Obesity
成人肥胖高危青少年军人家属的人际模式研究
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
Abigail Pine;L. Shank;Natasha L. Burke;M. K. H. Neyland;Natasha A. Schvey;Megan Quattlebaum;William Leu;E. Denise;Wilfley;Mark Stephens;Sarah Jorgensen;C. Olsen;Tracy;Sbrocco;J. Yanovski;David A. Klein;J. Quinlan;M. Tanofsky - 通讯作者:
M. Tanofsky
Effect of Adapted Interpersonal Psychotherapy vs. Health Education on Mood and Eating in the Laboratory among Adolescent Girls with Loss of Control Eating
适应性人际心理治疗与健康教育对实验室中饮食失控青春期女孩情绪和饮食的影响
- DOI:
- 发表时间:
2017 - 期刊:
- 影响因子:0
- 作者:
M. Tanofsky;Ross D. Crosby;A. Vannucci;M. Kozlosky;B. Lauren;Shomaker;S. Brady;T. Sbrocco;C. Pickworth;Mark Stephens;Jami F. Young;Cara H. Olsen;N. Kelly;Rachel M. Radin;O. Cassidy;Denise;E. Wilfley;James C. Reynolds;J. Yanovski - 通讯作者:
J. Yanovski
Mark Stephens的其他文献
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{{ truncateString('Mark Stephens', 18)}}的其他基金
Collaborative Research: Quantifying the atmospheric flux of bio-active trace elements to the southwestern Indian Ocean
合作研究:量化西南印度洋生物活性微量元素的大气通量
- 批准号:
2023011 - 财政年份:2020
- 资助金额:
$ 27.61万 - 项目类别:
Standard Grant
Collaborative Research: Constraining the role of chemical transformations in the cycling of mercury at the Arctic Ocean air-sea interface
合作研究:限制化学转化在北冰洋海气界面汞循环中的作用
- 批准号:
1854462 - 财政年份:2020
- 资助金额:
$ 27.61万 - 项目类别:
Standard Grant
Collaborative Research: Defining the Atmospheric Deposition of Trace Elements into the Arctic Ocean-Ice Ecosystem During the Year-Long MOSAiC Ice Drift.
合作研究:定义在长达一年的 MOSAiC 冰漂过程中微量元素在北冰洋冰生态系统中的大气沉积。
- 批准号:
1753423 - 财政年份:2018
- 资助金额:
$ 27.61万 - 项目类别:
Standard Grant
Collaborative Research: Lead-210 and Polonium-210 as tracers for scavenging and export: GEOTRACES Pacific Meridional Section
合作研究:铅 210 和钋 210 作为清除和出口示踪剂:GEOTRACES 太平洋子午线部分
- 批准号:
1736612 - 财政年份:2017
- 资助金额:
$ 27.61万 - 项目类别:
Continuing Grant
GEOTRACES Pacific Meridional Transect: Measurement of Beryllium-7 as a Tracer of Upper Ocean Processes
GEOTRACES 太平洋经线横断面:测量铍 7 作为上层海洋过程的示踪剂
- 批准号:
1736319 - 财政年份:2017
- 资助金额:
$ 27.61万 - 项目类别:
Standard Grant
SGER: Radiometric Dating of Whalebones: A Method for Studying Succession and Persistence of Whalefall Chemoautotrophic Assemblages
SGER:鲸骨的放射性测年:研究鲸落化学自养组合的连续性和持久性的方法
- 批准号:
9902095 - 财政年份:1999
- 资助金额:
$ 27.61万 - 项目类别:
Standard Grant
Investigation of the Rate of Shelf-Basin Interaction in the Western Arctic Ocean Using Radium Isotopes
利用镭同位素研究北冰洋西部陆架盆地相互作用速率
- 批准号:
9815132 - 财政年份:1999
- 资助金额:
$ 27.61万 - 项目类别:
Standard Grant
SGER: Modeling Heat Exchange between Arctic Leads and Underlying Water Utilizing Be7 Measurements
SGER:利用 Be7 测量对北极铅和底层水之间的热交换进行建模
- 批准号:
9809168 - 财政年份:1998
- 资助金额:
$ 27.61万 - 项目类别:
Standard Grant
Evaluating Heat Exchange Between Arctic Leads and Underlying Water of Adjacent Ice By Be-7 Measurements
通过 Be-7 测量评估北极铅与邻近冰层下水之间的热交换
- 批准号:
9701067 - 财政年份:1997
- 资助金额:
$ 27.61万 - 项目类别:
Continuing Grant
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Collaborative Research: US GEOTRACES GP-17-ANT: Molecular speciation of trace element-ligand complexes in the Southern Ocean and Antarctic shelf
合作研究:美国 GEOTRACES GP-17-ANT:南大洋和南极陆架微量元素-配体复合物的分子形态
- 批准号:
2410011 - 财政年份:2023
- 资助金额:
$ 27.61万 - 项目类别:
Continuing Grant
Collaborative Research: US GEOTRACES GP-17-OCE: Molecular speciation of trace element-ligand complexes in the South Pacific Ocean
合作研究:US GEOTRACES GP-17-OCE:南太平洋微量元素-配体复合物的分子形态
- 批准号:
2422713 - 财政年份:2023
- 资助金额:
$ 27.61万 - 项目类别:
Standard Grant
Collaborative Research: US GEOTRACES GP-17-OCE and -ANT Sections: External sources, cycling and processes affecting mercury speciation in the South Pacific and Southern Oceans
合作研究:US GEOTRACES GP-17-OCE 和 -ANT 部分:影响南太平洋和南大洋汞形态的外部来源、循环和过程
- 批准号:
2151677 - 财政年份:2022
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$ 27.61万 - 项目类别:
Continuing Grant
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合作研究:US GEOTRACES GP-17- OCE 和 -ANT 部分:影响南太平洋和南大洋汞形态的外部来源、循环和过程
- 批准号:
2152636 - 财政年份:2022
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Collaborative Research: US GEOTRACES GP-17-ANT: Molecular speciation of trace element-ligand complexes in the Southern Ocean and Antarctic shelf
合作研究:US GEOTRACES GP-17-ANT:南大洋和南极陆架微量元素-配体复合物的分子形态
- 批准号:
2048510 - 财政年份:2021
- 资助金额:
$ 27.61万 - 项目类别:
Continuing Grant