Collaborative Research: GEOTRACES particulate intercalibration

合作研究:GEOTRACES 颗粒相互校准

基本信息

  • 批准号:
    0826335
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2008
  • 资助国家:
    美国
  • 起止时间:
    2008-09-15 至 2011-08-31
  • 项目状态:
    已结题

项目摘要

Large sampling and methodological biases, with reported differences as large as 200%, continue to confound the marine geochemical research community involved in water-column particulate sampling. When the GEOTRACES Intercalibration Cruise (IC) program was designed, the extent and reality of reported differences had not been fully appreciated. The resolution of this problem remains an urgent priority. In this project, researchers at the University of California Berkeley - Lawrence Berkeley National Laboratory and the Woods Hole Oceanographic Institution will participate in the US-GEOTRACES IC study. The UCB/LBNL team will deploy Multiple Unit Large Volume in-situ Filtration System (MULVFS) as part of the IC study. MULVFS is a unique, highly flexible, and reliable system with an unparalleled and globally tested ability for collection of particulate and dissolved species from the sea. MULVFS collects size fractionated particulate samples from 10000 L volumes of seawater at 12 depth horizons in the upper 1000 m. Subsamples will be provided to other IC experiment participants. LBNL/UCB will analyze particulate samples from bottle and McLane pumps as part of the IC experiment. MULVFS will also be used for simultaneous comparison of different particle capture and size separation devices (e.g. McLane, Challenger, Kiel pump filter holders), filter types, and adsorber systems. This work has been highly coordinated with the GEOTRACES IC PIs and participants as well as with members of the GEOTRACES Science Steering Committee. The work that will be carried out through this award is designed to eliminate investigator and sampling approach dependency for GEOTRACES particulate sampling and will reconcile the various sampling approaches to be used in this program. Work will support multi-investigator particulate matter IC studies using MULVFS in both the environmentally easy locations such as the BATS and SAFe site and in physically dynamic and biologically variable locations such as in the Gulf Stream and California Current. MULVFS was designed to retain particles in strong current flows of the Gulf Stream. Comparison with other particle sampling methodologies in both challenging and non-challenging environments will lead to understanding and resolution of biases /differences that are both substantial, documented in published literature, and further documented in this proposal. Such an inter calibration has never been done before. Furthermore, MULVFS greatly improves the efficiency of the IC experiment by providing high resolution baseline profiles of trace metals and nuclides in the upper water column. GEOTRACES places high priority on particulate matter samples being representative in composition and size distribution of the particulates naturally occurring in the water column whether or not the water column is warm, cold, quiescent or physically dynamic or biologically variable. Broader Impacts: The proposed work tackles the very real problems of method-dependent particle sampling and pre analysis biases (large particle loss from some pumps, large particle settling loss before filtration in bottles, poor sample preservation, etc.). It will be of relevance to all members of the oceanography community who engage in particle studies.
大量采样和方法偏差(据报道差异高达200%)继续困扰着参与水柱颗粒采样的海洋地球化学研究界。在设计GEOTRACES Intercalibration Cruise (IC)项目时,所报告的差异的程度和现实并未得到充分认识。解决这一问题仍然是一个紧迫的优先事项。在这个项目中,加州大学伯克利分校-劳伦斯伯克利国家实验室和伍兹霍尔海洋研究所的研究人员将参与美国- geotraces IC研究。UCB/LBNL团队将部署多单元大容量原位过滤系统(MULVFS)作为集成电路研究的一部分。MULVFS是一种独特、高度灵活、可靠的系统,具有无与伦比的全球测试能力,可从海洋中收集颗粒和溶解物质。MULVFS从1000米以上12个深度层的10000升海水中收集大小分级颗粒样本。子样本将提供给其他IC实验参与者。LBNL/UCB将分析来自瓶子和麦克莱恩泵的颗粒样本,作为IC实验的一部分。MULVFS还将用于同时比较不同的颗粒捕获和尺寸分离设备(例如McLane, Challenger, Kiel泵过滤器支架),过滤器类型和吸附器系统。这项工作已与GEOTRACES IC pi和参与者以及GEOTRACES科学指导委员会成员进行了高度协调。将通过该合同开展的工作旨在消除对GEOTRACES颗粒采样的调查员和采样方法的依赖,并将协调该项目中使用的各种采样方法。这项工作将支持多研究者使用MULVFS在环境容易的地点(如BATS和SAFe地点)以及在物理动态和生物可变的地点(如墨西哥湾流和加利福尼亚流)进行颗粒物IC研究。MULVFS的设计目的是在墨西哥湾流的强气流中保留颗粒。在具有挑战性和非挑战性的环境中与其他粒子采样方法进行比较,将导致对偏差/差异的理解和解决,这些偏差/差异在已发表的文献中都有记载,并在本提案中进一步记录。这样的内部校准以前从未做过。此外,MULVFS通过提供上层水柱中痕量金属和核素的高分辨率基线剖面,大大提高了IC实验的效率。GEOTRACES高度重视在水柱中自然存在的颗粒的组成和大小分布方面具有代表性的颗粒物质样品,无论水柱是暖的、冷的、静止的还是物理动态的或生物可变的。更广泛的影响:提议的工作解决了方法依赖的颗粒采样和预分析偏差的非常现实的问题(一些泵的大颗粒损失,过滤前的大颗粒沉降损失,样品保存不良等)。它将与从事粒子研究的海洋学界的所有成员有关。

项目成果

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James Bishop其他文献

Squeezing new life out of an old <em>Sponge</em>: how to modernise an anti‐smoking media campaign to capture a new market
  • DOI:
    10.1111/j.1753-6405.2010.00654.x
  • 发表时间:
    2011-02-01
  • 期刊:
  • 影响因子:
  • 作者:
    Trish Cotter;Wai Tak Hung;Donna Perez;Sally Dunlop;James Bishop
  • 通讯作者:
    James Bishop
Grain assemblages and diagenesis in the Vaca Muerta Formation (Jurassic-Cretaceous), Neuquén Basin, Argentina
  • DOI:
    10.1016/j.sedgeo.2018.11.007
  • 发表时间:
    2019-02-01
  • 期刊:
  • 影响因子:
  • 作者:
    Kitty L. Milliken;Robert M. Reed;Douglas K. McCarty;James Bishop;C.J. Lipinski;Timothy B. Fischer;Luisa Crousse;Hernan Reijenstein
  • 通讯作者:
    Hernan Reijenstein
P-042: Phase 1 dose-escalation study of sotatercept in combination with lenalidomide and dexamethasone or pomalidomide and dexamethasone in relapsed/refractory multiple myeloma
  • DOI:
    10.1016/s2152-2650(22)00372-x
  • 发表时间:
    2022-08-01
  • 期刊:
  • 影响因子:
  • 作者:
    Andrew Yee;Jacob Laubach;Ajay Nooka;Elizabeth O’Donnell;Cynthia Harrington;Emerentia Agyemang;Jill Burke;Marilyn Gammon;Kathleen Lively;Lisette Packer;James Bishop;Zachary Bernstein;Rebecca Lyons;Alexandra Wright;Cailin McVey;Paul Richardson;Noopur Raje
  • 通讯作者:
    Noopur Raje
The effects of study order and backward associative strength on illusory recollection: A source-strength effect does not always occur
学习顺序和后向联想强度对虚幻回忆的影响:源强度效应并不总是发生
  • DOI:
    10.1080/09658211.2014.994641
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    2.1
  • 作者:
    Bryan A. Franks;K. Butler;James Bishop
  • 通讯作者:
    James Bishop
Intention to use novel methods of male directed contraception among college students
大学生使用男性定向避孕新方法的意愿
  • DOI:
    10.52547/jshp.1.1.11
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    0
  • 作者:
    James Bishop;Brittany N. Rosen;Liliana Rojas;A. Bernard;Bradley Wilson
  • 通讯作者:
    Bradley Wilson

James Bishop的其他文献

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{{ truncateString('James Bishop', 18)}}的其他基金

Autonomous Ocean Carbon Observer Development and Calibration
自主海洋碳观测器的开发和校准
  • 批准号:
    2123942
  • 财政年份:
    2021
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Carbon Sedimentation In the Ocean Watercolumn (C-SNOW): Calibration
海洋水柱中的碳沉积 (C-SNOW):校准
  • 批准号:
    1538686
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Autonomous Particulate Inorganic Carbon Sensor and Carbon Explorer Deployment
自主颗粒无机碳传感器和碳探索者部署
  • 批准号:
    0964888
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Carbon Flux Explorer Development
碳通量探索者开发
  • 批准号:
    0936143
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Collaborative Research: SGER - Rapid Resolution of Particle Sampling Issues for GEOTRACES
合作研究:SGER - 快速解决 GEOTRACES 的颗粒采样问题
  • 批准号:
    0826514
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
CEDAR: Modeling Metastable Helium Emissions in the Terrestrial Thermosphere
CEDAR:模拟陆地热层中的亚稳态氦排放
  • 批准号:
    9415858
  • 财政年份:
    1994
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Exospheric Studies and Geocoronal Applications
外层研究和地冕应用
  • 批准号:
    9213269
  • 财政年份:
    1992
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Data Management for the Global Ocean Flux Studies
全球海洋通量研究的数据管理
  • 批准号:
    9117013
  • 财政年份:
    1992
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
MULVFS Investigations of Particle Dynamics in the EquatorialPacific Ocean: JGOFS
赤道太平洋粒子动力学的 MULVFS 研究:JGOFS
  • 批准号:
    9022308
  • 财政年份:
    1991
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Investigation of Biological Pump Pathways Using the MultipleUnit Large Volume in Situ Filtration System
使用多单元大容量原位过滤系统研究生物泵路径
  • 批准号:
    8917784
  • 财政年份:
    1990
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant

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合作研究:美国GEOTRACES GP17-ANT:阿蒙森海大陆边缘的氮同位素动力学
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  • 批准号:
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