US GEOTRACES PMT: Shipboard determination of key dissolved trace elements

US GEOTRACES PMT:关键溶解微量元素的船上测定

基本信息

  • 批准号:
    1736906
  • 负责人:
  • 金额:
    $ 43.88万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2017
  • 资助国家:
    美国
  • 起止时间:
    2017-11-01 至 2023-09-30
  • 项目状态:
    已结题

项目摘要

This project will provide shipboard measurements of the dissolved trace elements aluminum (Al), iron (Fe), and manganese (Mn) during an Alaska to Tahiti cruise that will sail as part of the US GEOTRACES Pacific Meridional Transect (PMT). The PMT expedition is part of the international GEOTRACES program designed to improve understanding of global ocean biogeochemical cycles. The growth of microscopic oceanic plants in surface waters depends on the availability of certain trace elements (particularly dissolved Fe). In addition, the distribution of this and other trace elements record current and past chemical and biological processes in the ocean. The PMT cruise track includes multiple unique oceanic conditions and thus the results of the work will provide important insight into diverse global ocean processes. For broader scientific impact, results will be incorporated into models that address the current and future role of the ocean in global processes. Assessing the distribution of trace elements in the Clarion-Clipperton Fracture Zone, along the cruise track, will also provide an important baseline for this region where seabed mining of manganese nodules is planned. Educational outreach will take place with a mid-cruise stop in Hilo, Hawaii to engage local students with visits to the ship. Direct exposure to a working oceanographic research vessel together with a post-cruise follow up visit will provide students with a unique opportunity to discuss the findings from the expedition directly with the scientists engaged in the project.To develop the data sets required for new understanding of the relative importance of trace element input processes in establishing oceanic chemical distributions, seawater samples from the entire water column will be collected using a custom designed sampling package at 41 locations during the 62-day cruise. The northern part of the cruise track originates in a region where very low concentrations of dissolved Fe in surface waters limit plant growth. Further to the south, increased atmospheric deposition of mineral dust blown from the continents will be traced by measuring the dissolved Al concentration in surface waters. The addition of this dust also adds dissolved Fe. Potential additional inputs of Fe from coastal regions will be identified by coincident increases in dissolved Mn concentrations. The project will compare and correlate variations in Al, Fe, and Mn to quantify and identify distinct addition processes along the cruise track. By using shipboard flow injection analysis to provide near real-time measurements for these trace elements, the potential exists to modify sampling strategies for maximum scientific return. The shipboard results will also help identify any sampling contamination problems that are a constant risk when collecting these low-level trace elements. Altogether, the shipboard analysis of these essential elements is an essential activity to ensure success of the GEOTRACES PMT.
该项目将在阿拉斯加到塔希提岛的航行中提供溶解微量元素铝(Al),铁(Fe)和锰(Mn)的船上测量,该航行将作为美国GEOTRACES太平洋子午线断面(PMT)的一部分。 PMT探险是国际GEOTRACES计划的一部分,旨在提高对全球海洋地球化学循环的理解。海洋植物在表层沃茨中的生长取决于某些微量元素(特别是溶解的铁)的可用性。 此外,这种和其他微量元素的分布记录了海洋中当前和过去的化学和生物过程。 PMT巡航轨迹包括多种独特的海洋条件,因此工作结果将为不同的全球海洋过程提供重要的见解。为了产生更广泛的科学影响,研究结果将被纳入处理海洋在全球进程中当前和未来作用的模型。对克拉里昂-克利珀顿断裂带内微量元素分布情况的评估,沿着巡航轨迹,也将为计划进行锰结核海底开采的这一区域提供重要的基线。教育推广活动将在夏威夷的希洛中途停留,让当地学生参观该船。直接接触一艘正在工作的海洋学研究船,并在巡航后进行后续访问,将为学生提供一个独特的机会,与参与该项目的科学家直接讨论考察的结果。为了开发所需的数据集,以重新理解微量元素输入过程在建立海洋化学分布方面的相对重要性,在为期六十二天的航行中,将使用专门设计的采样包在四十一个地点采集整个水体的海水样本。巡航轨迹的北方部分起源于一个区域,在该区域,地表沃茨中溶解的铁浓度非常低,限制了植物的生长。 再往南,将通过测量地表沃茨中溶解的铝浓度来追踪从大陆吹来的矿物粉尘的大气沉积增加。 这种粉尘的加入也增加了溶解的Fe。 潜在的额外输入的铁从沿海地区将确定同步增加溶解锰浓度。该项目将比较并关联铝、铁和锰的变化,以量化和识别沿着巡航轨迹的不同添加过程。通过使用船载流动注射分析提供这些微量元素的近实时测量,有可能修改采样策略,以获得最大的科学回报。 船上的结果还将有助于确定在收集这些低水平微量元素时存在的任何采样污染问题。 总之,对这些基本要素的船上分析是确保GEOTRACES PMT成功的一项重要活动。

项目成果

期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Does Sea Spray Aerosol Contribute Significantly to Aerosol Trace Element Loading? A Case Study From the U.S. GEOTRACES Pacific Meridional Transect (GP15)
海喷雾气溶胶对气溶胶微量元素负荷有显着贡献吗?
  • DOI:
    10.1029/2022gb007416
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    5.2
  • 作者:
    Marsay, Chris M.;Landing, William M.;Umstead, Devon;Till, Claire P.;Freiberger, Robert;Fitzsimmons, Jessica N.;Lanning, Nathan T.;Shiller, Alan M.;Hatta, Mariko;Chmiel, Rebecca
  • 通讯作者:
    Chmiel, Rebecca
Major processes of the dissolved cobalt cycle in the North and equatorial Pacific Ocean
北太平洋和赤道太平洋溶解钴循环的主要过程
  • DOI:
    10.5194/bg-19-2365-2022
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    4.9
  • 作者:
    Chmiel, Rebecca;Lanning, Nathan;Laubach, Allison;Lee, Jong-Mi;Fitzsimmons, Jessica;Hatta, Mariko;Jenkins, William;Lam, Phoebe;McIlvin, Matthew;Tagliabue, Alessandro
  • 通讯作者:
    Tagliabue, Alessandro
An intermediate-depth source of hydrothermal 3He and dissolved iron in the North Pacific
  • DOI:
    10.1016/j.epsl.2020.116223
  • 发表时间:
    2020-06
  • 期刊:
  • 影响因子:
    5.3
  • 作者:
    W. J. Jenkins;M. Hatta;J. Fitzsimmons;R. Schlitzer;N. Lanning;Alan Shiller;N. R. Buckley;C. R. German;D. Lott;G. Weiß;L. Whitmore;K. Casciotti;Phoebe J. Lam;G. Cutter;K. Cahill
  • 通讯作者:
    W. J. Jenkins;M. Hatta;J. Fitzsimmons;R. Schlitzer;N. Lanning;Alan Shiller;N. R. Buckley;C. R. German;D. Lott;G. Weiß;L. Whitmore;K. Casciotti;Phoebe J. Lam;G. Cutter;K. Cahill
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Mariko Hatta其他文献

海底地形上の流れの安定性:二層準地衡系における一般的条件と線形解析
海底地形的流动稳定性:两层准地转系统的一般条件和线性分析
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Madeline Davis;Mariko Hatta;Jaromir Ruzicka;Chris Measures;田中 祐希
  • 通讯作者:
    田中 祐希
GPS位置情報をもちいた屋外交通広告の推定
利用GPS位置信息估算户外交通广告
  • DOI:
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Efrem d'A vila Ferreira;Mariko Hatta;Yasunaga Takeda;Chika Horikawa;Mizuki Takeuchi;Shigemi Tashiro;Noriko Kato;Hiroki Yokoyama;Yoshio Kurihara;Koichi Iwasaki;Kazuya Fujihara;Hiroshi Maegawa;Hirohito Sone .;村田裕人・星野崇宏
  • 通讯作者:
    村田裕人・星野崇宏
Diabetes Reflect Study: Redefining Fundamental Learning of SMBG through Educational Color Tools
糖尿病反映研究:通过教育色彩工具重新定义 SMBG 的基础学习
  • DOI:
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Katsunori Suzuki;Takaaki Sato;Mariko Hatta
  • 通讯作者:
    Mariko Hatta
Using programmable flow injection in batch mode to eliminate the Schlieren effect and enabling the use distilled water standards in seawater nutrient determinations
在批量模式下使用可编程流量注射来消除纹影效应,并在海水营养物测定中使用蒸馏水标准品
  • DOI:
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Madeline Davis;Mariko Hatta;Jaromir Ruzicka;Chris Measures
  • 通讯作者:
    Chris Measures
Characteristics of late summer Arctic brash sea ice and its melting effect on the surface-water biogeochemistry of the Chukchi Shelf and Canada Basin
夏末北极急流海冰特征及其融化对楚科奇陆架和加拿大盆地地表水生物地球化学的影响
  • DOI:
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Ryota Akino;Daiki Nomura;Reishi Sahashi;Manami Tozawa;Mariko Hatta;Kohei Matsuno;Wakana Endo;T. Shiozaki;Tatsuya Kawakami;Masato Ito;Akihiko Murata;A. Fujiwara
  • 通讯作者:
    A. Fujiwara

Mariko Hatta的其他文献

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{{ truncateString('Mariko Hatta', 18)}}的其他基金

Collaborative Research: Developing Automated Nutrient and Trace Metal Methodology using Programmable Flow Injection
合作研究:使用可编程流动注射开发自动化营养物和微量金属方法
  • 批准号:
    1924690
  • 财政年份:
    2019
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Standard Grant

相似海外基金

Collaborative Research: US GEOTRACES PMT: Quantification of Atmospheric Deposition and Trace Element Fractional Solubility
合作研究:美国 GEOTRACES PMT:大气沉积和微量元素溶解度的量化
  • 批准号:
    1756103
  • 财政年份:
    2018
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Continuing Grant
Collaborative Research: US GEOTRACES PMT: Quantification of Atmospheric Deposition and Trace Element Fractional Solubility
合作研究:美国 GEOTRACES PMT:大气沉积和微量元素溶解度的量化
  • 批准号:
    1756104
  • 财政年份:
    2018
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Continuing Grant
Collaborative Research: US GEOTRACES PMT: Sources and Rates of Trace Element and Isotope Cycling Derived from the Radium Quartet
合作研究:美国 GEOTRACES PMT:源自镭四重奏的微量元素和同位素循环的来源和速率
  • 批准号:
    1736277
  • 财政年份:
    2018
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Continuing Grant
Collaborative Research: US GEOTRACES PMT: Sources and Rates of Trace Element and Isotope Cycling Derived from the Radium Quartet
合作研究:美国 GEOTRACES PMT:源自镭四重奏的微量元素和同位素循环的来源和速率
  • 批准号:
    1736321
  • 财政年份:
    2018
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Continuing Grant
Collaborative Research: US GEOTRACES PMT: Investigating geochemical tracers of the Pacific nitrogen cycle and budget
合作研究:US GEOTRACES PMT:研究太平洋氮循环和预算的地球化学示踪剂
  • 批准号:
    1736652
  • 财政年份:
    2018
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Continuing Grant
Collaborative Research: US GEOTRACES PMT: Investigating geochemical tracers of the Pacific nitrogen cycle and budget
合作研究:US GEOTRACES PMT:研究太平洋氮循环和预算的地球化学示踪剂
  • 批准号:
    1736756
  • 财政年份:
    2018
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Continuing Grant
US GEOTRACES PMT: Cobalt Biogeochemical Cycling and Connections to Metalloenzymes in the Pacific Ocean
美国 GEOTRACES PMT:太平洋钴生物地球化学循环及其与金属酶的联系
  • 批准号:
    1736599
  • 财政年份:
    2017
  • 资助金额:
    $ 43.88万
  • 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:
    $ 43.88万
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US GEOTRACES PMT: hydrogen sulfide as a strong ligand affecting trace metal cycling
US GEOTRACES PMT:硫化氢作为影响痕量金属循环的强配体
  • 批准号:
    1737342
  • 财政年份:
    2017
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Standard Grant
Collaborative research: US GEOTRACES PMT: Trace-metal concentrations and stable isotopes in the North Pacific
合作研究:美国 GEOTRACES PMT:北太平洋的痕量金属浓度和稳定同位素
  • 批准号:
    1736896
  • 财政年份:
    2017
  • 资助金额:
    $ 43.88万
  • 项目类别:
    Standard Grant
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