Radiocarbon in Dissolved Organic Matter in the Arctic Ocean
北冰洋溶解有机物中的放射性碳
基本信息
- 批准号:1022716
- 负责人:
- 金额:$ 53.86万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2010
- 资助国家:美国
- 起止时间:2010-09-01 至 2015-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The average radiocarbon age of dissolved organic carbon (DOC) in the deep ocean ranges from 4000 - 6500 radiocarbon years. The data set used to estimate this range is based on only a few sites in the world ocean, none of which are in the Arctic. The objective of this proposal is to determine the radiocarbon signatures of bulk DOC in seawater from the Arctic Ocean to better understand the timescale of DOC cycling in the area that receives the highest amount of terrestrial DOC per unit volume than any other ocean. Participation in one cruise to the northern North Atlantic, and on two other cruises, to the Eurasian Basin and Canada Basin, is proposed to collect water samples from six detailed profiles. High-precision radiocarbon measurements are proposed using AMS (accelerator mass spectrometry) of DOC in water samples from each site. Two hypotheses will be tested: (1) bulk DOC in the deep Canada Basin (western Arctic) is several hundred radiocarbon years older than that in the deep Eurasian Basin (eastern Arctic), and these ages can be used to determine the cycling time of DOC in the deep Arctic Ocean; and (2) bulk DOC in the northern North Atlantic Ocean (61-62.5°N) is younger than in the Eurasian Basin, because of the presence of bomb radiocarbon in this region of deep water formation. These results will provide quantitative information on the timescale of DOC cycling in the Arctic Ocean. This grant will support the work of one graduate student and two undergraduate students and provide hands-on experience that will prepare them for careers as scientists and educators. The PI will conduct outreach and mentoring activities at several educational and professional levels.
深海溶解有机碳(DOC)的平均放射性碳年龄在4000 ~ 6500放射性碳年之间。用于估计这一范围的数据集仅基于世界海洋中的几个地点,其中没有一个在北极。本提案的目的是确定北冰洋海水中大量DOC的放射性碳特征,以更好地了解单位体积陆地DOC接收量最高的地区DOC循环的时间尺度。参加一次前往北大西洋北部的巡航,以及另外两次前往欧亚盆地和加拿大盆地的巡航,计划从六个详细剖面收集水样。建议使用AMS(加速器质谱法)对每个站点水样中的DOC进行高精度放射性碳测量。本文将验证两个假设:(1)加拿大盆地(北极西部)的大块DOC比欧亚盆地(北极东部)的大块DOC早几百个放射性碳年,这些年龄可以用来确定北冰洋深海DOC的循环时间;(2)北大西洋北部(61 ~ 62.5°N)的大块DOC比欧亚盆地年轻,这是由于该地区深水地层中存在炸弹放射性碳。这些结果将为北冰洋DOC循环的时间尺度提供定量信息。这项资助将支持一名研究生和两名本科生的工作,并提供实践经验,为他们成为科学家和教育工作者做好准备。PI将在几个教育和专业级别开展外联和指导活动。
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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Ellen Druffel其他文献
Two black carbon pools transported by the Changjiang and Huanghe Rivers in China
中国长江和黄河输送的两个黑碳库
- DOI:
10.1002/2016gb005509 - 发表时间:
2016-12 - 期刊:
- 影响因子:5.2
- 作者:
Xuchen Wang;Caili Xu;Ellen Druffel;Yuejun Xue;Yuanzhi Qi - 通讯作者:
Yuanzhi Qi
Removal of dissolved organic carbon in the West Pacific hadal zones
西太平洋深海区溶解有机碳的去除
- DOI:
10.1038/s41467-025-55883-1 - 发表时间:
2025-01-16 - 期刊:
- 影响因子:15.700
- 作者:
Mengfan Chu;Rui Bao;Michael Strasser;Ken Ikehara;Yang Ding;Kejian Liu;Mingzhi Liu;Li Xu;Yonghong Wang;Piero Bellanova;Troy Rasbury;Martin Kölling;Natascha Riedinger;Min Luo;Christian März;Kana Jitsuno;Zhirong Cai;Cecilia McHugh;Ellen Druffel - 通讯作者:
Ellen Druffel
Two black carbon pools transported by the Changjiang and Huanghe Rivers in China
- DOI:
10.1002/2016 GB005509 - 发表时间:
2016 - 期刊:
- 影响因子:
- 作者:
Xuchen Wang;Caili Xu;Ellen Druffel;Yuejun Xue;Yuanzhi Qi - 通讯作者:
Yuanzhi Qi
Ellen Druffel的其他文献
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{{ truncateString('Ellen Druffel', 18)}}的其他基金
RAPID: The effect of El Nino on delivery of organic carbon in the Santa Clara River, CA
RAPID:厄尔尼诺现象对加利福尼亚州圣克拉拉河有机碳输送的影响
- 批准号:
2401563 - 财政年份:2023
- 资助金额:
$ 53.86万 - 项目类别:
Standard Grant
Cycling of Dissolved Organic Matter in the Pacific and Indian Oceans Using Radiocarbon
使用放射性碳循环太平洋和印度洋中的溶解有机物
- 批准号:
1951073 - 财政年份:2020
- 资助金额:
$ 53.86万 - 项目类别:
Standard Grant
CYCLING OF DISSOLVED ORGANIC MATTER IN THE PACIFIC AND ATLANTIC OCEANS USING RADIOCARBON
使用放射性碳循环太平洋和大西洋中的溶解有机物
- 批准号:
1458941 - 财政年份:2015
- 资助金额:
$ 53.86万 - 项目类别:
Standard Grant
Radiocarbon in Dissolved Organic Matter in Ocean Water
海水中溶解有机物中的放射性碳
- 批准号:
0961980 - 财政年份:2010
- 资助金额:
$ 53.86万 - 项目类别:
Standard Grant
Methane Oxidation Rates by AMS: Use of low-level 14C-CH4 and Accelerator Mass Spectrometry to Determine Rates of Water Column Aerobic and Anaerobic Methane Oxidation
AMS 测定甲烷氧化速率:使用低浓度 14C-CH4 和加速器质谱测定水柱需氧和厌氧甲烷氧化速率
- 批准号:
0622759 - 财政年份:2007
- 资助金额:
$ 53.86万 - 项目类别:
Standard Grant
Study of Seasonal Radiocarbon Variability in the Eastern Tropical Pacific During Periods of Decadal and Interannual Climate Shifts
年代际和年际气候变化期间热带东太平洋季节性放射性碳变化研究
- 批准号:
0551940 - 财政年份:2006
- 资助金额:
$ 53.86万 - 项目类别:
Standard Grant
Acquisition of Capability for Single-Compound AMS Measurement of Organic Matter at the W.M. Keck Carbon Cycle Accelerator Mass Spectrometry Facility at UC Irvine
W.M. 获得有机物单一化合物 AMS 测量能力
- 批准号:
0447323 - 财政年份:2005
- 资助金额:
$ 53.86万 - 项目类别:
Continuing Grant
Variability of Climate and Carbon Sycling in the Tropical Pacific During Periods of Abrupt Thermocline Shift
温跃层突变期间热带太平洋气候和碳循环的变化
- 批准号:
0502619 - 财政年份:2005
- 资助金额:
$ 53.86万 - 项目类别:
Standard Grant
Decade Time Scale Variability of Radiocarbon, and the CO2 Cycle in the Eastern Tropical Pacific Using Banded Corals
使用带状珊瑚研究热带太平洋东部放射性碳和二氧化碳循环的十年时间尺度变化
- 批准号:
0137207 - 财政年份:2002
- 资助金额:
$ 53.86万 - 项目类别:
Continuing Grant
Collaborative Research: Penetration of the Bomb 14C Transient in the Dissolved and Particulate Organic Carbon Pools in Two Mid-Ocean Gyres
合作研究:炸弹 14C 瞬变对两个大洋中环流溶解和颗粒有机碳库的穿透
- 批准号:
9815130 - 财政年份:1998
- 资助金额:
$ 53.86万 - 项目类别:
Continuing Grant
相似海外基金
Cycling of Dissolved Organic Matter in the Pacific and Indian Oceans Using Radiocarbon
使用放射性碳循环太平洋和印度洋中的溶解有机物
- 批准号:
1951073 - 财政年份:2020
- 资助金额:
$ 53.86万 - 项目类别:
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Behavior and function of dissolved organic matter in the northwestern Pacific Ocean discovered by radiocarbon age
放射性碳年龄发现西北太平洋溶解有机物的行为和功能
- 批准号:
19H04260 - 财政年份:2019
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Grant-in-Aid for Scientific Research (B)
Development of versatile analysis system for dissolved organic radiocarbon in seawater
海水中溶解有机放射性碳多功能分析系统的开发
- 批准号:
16K00527 - 财政年份:2016
- 资助金额:
$ 53.86万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
CYCLING OF DISSOLVED ORGANIC MATTER IN THE PACIFIC AND ATLANTIC OCEANS USING RADIOCARBON
使用放射性碳循环太平洋和大西洋中的溶解有机物
- 批准号:
1458941 - 财政年份:2015
- 资助金额:
$ 53.86万 - 项目类别:
Standard Grant
Radiocarbon in Dissolved Organic Matter in Ocean Water
海水中溶解有机物中的放射性碳
- 批准号:
0961980 - 财政年份:2010
- 资助金额:
$ 53.86万 - 项目类别:
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Radiocarbon Investigations of Dissolved and Particulate Organic Carbon Cycling in the North Pacific and Antarctic Oceans
北太平洋和南极海洋溶解和颗粒有机碳循环的放射性碳调查
- 批准号:
9417391 - 财政年份:1994
- 资助金额:
$ 53.86万 - 项目类别:
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Radiocarbon Studies of Dissolved and Particulate Organic Carbon Cycling in the North Pacific and Antarctic Oceans
北太平洋和南极海洋溶解和颗粒有机碳循环的放射性碳研究
- 批准号:
9501531 - 财政年份:1994
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Radiocarbon Studies of Dissolved and Particulate Organic Carbon in the Eastern North Pacific and Amazon Plume Regions
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Radiocarbon Studies of Dissolved and Particulate Organic Carbon in the Eastern North Pacific and Amazon Plume Regions
北太平洋东部和亚马逊羽流区域溶解和颗粒有机碳的放射性碳研究
- 批准号:
9101183 - 财政年份:1991
- 资助金额:
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Continuing Grant
Radiocarbon Studies of Dissolved and Particulate Organic Carbon in the Eastern North Pacific and Amazon Plume Regions
北太平洋东部和亚马逊羽流区域溶解和颗粒有机碳的放射性碳研究
- 批准号:
9101540 - 财政年份:1991
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