Reactive Radionuclides in the Eastern North Atlantic, Joint Global Ocean Flux Study
Reactive Radionuclides in the Eastern North Atlantic, Joint Global Ocean Flux Study
批准号:
8817836
负责人:
Michael Bacon
金额:
$71.28万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1989
资助国家:
美国
项目状态:
已结题
起止时间:
1989-02-01 至 1991-07-31
中文摘要
这是一项研究的空间和时间变化, 一套天然气的分布和颗粒通量 发生的和人为的放射性核素进行的一部分, 北大西洋全球洋流联合研究(JGOFS) 布鲁姆实验 待测量的放射性核素用作 海洋示踪剂,产生基本的信息, 地球化学过程的速率, 海洋水体中的生物颗粒。 这项研究是 旨在检验这一假设,即吸收和释放的 可溶性化学物种的颗粒物和 海洋中颗粒聚集体的形成和破坏 水柱发生的速度在空间上和 随着浮游生物数量的变化 海面生产和有机物通量 留下表面层。 数据将在 生物速率测量和其他数据的背景, 在JGOFS中收集,并将用于测试 地球化学模型
英文摘要
This is a study of spatial and temporal variations in the distributions and particulate fluxes of suite of naturally occurring and man-made radioactive nuclides conducted as part of the Joint Global Ocean Flux Study (JGOFS) North Atlantic Bloom Experiment. The radionuclides to be measured serve as ocean tracers that yield fundamental information about the rates of biogeochemical processes that govern the fate of biogenic particles in the oceanic water column. The study is designed to test the hypothesis that the uptake and release of soluble chemical species by particulate matter and the formation and destruction of particle aggregates in the oceanic water column occur at rates that vary both spatially and temporally in response to variations in the rate of plankton production at the sea surface and the flux of organic matter leaving the surface layer. The data will be interpreted within the context of biological rate measurements and other data to be collected within JGOFS and will be used to test biogeochemical models.
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Mass Spectrometric Measurements of 231 Pa and 230 Th in the Water Column of the Tropical Atlantic: Evaluation of Water Mass Ventilation Ages and Boundary Scavenging
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批准号:9811260
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项目类别:Standard Grant
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资助金额:$32.83万
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财政年份:1998
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负责人:Michael Bacon
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依托单位:
Thorium Isotopes as Indicators of Export Flux and Particle Dynamics in the Southern Ocean: Joint Global Ocean Flux Study
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批准号:9530720
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项目类别:Continuing Grant
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资助金额:$33.38万
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财政年份:1996
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负责人:Michael Bacon
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依托单位:
Acquisition of Mass Spectrometers for Trace Elements and Isotopic Research in Marine and Earth Sciences
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批准号:9601587
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项目类别:Standard Grant
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资助金额:$32.99万
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财政年份:1996
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负责人:Michael Bacon
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依托单位:
U.S. JGOFS Data Management
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批准号:9417423
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项目类别:Continuing Grant
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资助金额:$75.66万
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财政年份:1995
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负责人:Michael Bacon
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依托单位:
Determination of Thorium-230 and Protactinum-231 in Ocean Waters by Isotope-Dilution Mass Spectrometry
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批准号:9415562
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项目类别:Continuing Grant
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资助金额:$47.66万
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财政年份:1995
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负责人:Michael Bacon
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依托单位:
Particle Export Fields in the Arabian Sea Derived from 234TH: 238U Disequilibria
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批准号:9310702
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项目类别:Continuing Grant
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资助金额:$47.58万
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财政年份:1994
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负责人:Michael Bacon
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依托单位:
Reconstruction of Particle Paleofluxes to the Seafloor by 230Th and 231Pa Profiling in Deep-Sea Sediments
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批准号:9200780
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项目类别:Continuing Grant
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资助金额:$29.5万
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财政年份:1992
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负责人:Michael Bacon
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依托单位:
Reactive Radionuclides in the Eastern North Atlantic, Joint Global Ocean Flux Study
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批准号:9016494
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项目类别:Standard Grant
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资助金额:$28.69万
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财政年份:1991
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负责人:Michael Bacon
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依托单位:
Reactive Radionuclides as Indicators of New Production and Particle Transformation in the Equatorial Pacific Water Column: Joint Global Ocean Flux Study
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批准号:9022284
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项目类别:Continuing Grant
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资助金额:$44.42万
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财政年份:1991
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负责人:Michael Bacon
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依托单位:
Marine Geochemistry of Reactive Radiouclides
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批准号:8800620
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项目类别:Standard Grant
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资助金额:$12.12万
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财政年份:1988
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负责人:Michael Bacon
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依托单位:
Automated Time-Series Sampling of Seawater for Natural Radionuclides
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批准号:8711979
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项目类别:Continuing Grant
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资助金额:$22.7万
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财政年份:1987
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负责人:Michael Bacon
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依托单位:
Oceanic Flux Program: Geochemical and Radiochemical Studies
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批准号:8417910
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项目类别:Continuing Grant
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资助金额:$33.5万
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财政年份:1986
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负责人:Michael Bacon
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依托单位:
Determination of Thorium Concentration in Seawater by Neu- tron Activation Analysis
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批准号:8314706
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项目类别:Standard Grant
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资助金额:$4.11万
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财政年份:1984
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负责人:Michael Bacon
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依托单位:
Marine Geochemistry of the Radioactive Elements
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批准号:8219583
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项目类别:Continuing Grant
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资助金额:$35.21万
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财政年份:1983
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负责人:Michael Bacon
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依托单位:
Marine Geochemistry of the Radioactive Elements
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批准号:8024063
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项目类别:Standard Grant
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资助金额:$15.83万
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财政年份:1981
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负责人:Michael Bacon
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依托单位:
Marine Geochemistry of the Radioactive Elements
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批准号:7826318
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项目类别:Continuing Grant
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资助金额:$9.56万
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财政年份:1979
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负责人:Michael Bacon
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依托单位:
Controlled Ecosystem Populations Experiment (Cepex) - Radionuclide Transport and Vertical Mixing Studies
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批准号:7726899
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项目类别:Standard Grant
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资助金额:$5.92万
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财政年份:1978
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负责人:Michael Bacon
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依托单位:
海外基金