Collaborative Research: Free-drifting Icebergs as Proliferating Dispersion Sites of Iron Enrichment, Organic Carbon Production and Export in the Southern Ocean
合作研究:自由漂流冰山作为南大洋铁富集、有机碳生产和出口扩散的扩散场所
基本信息
- 批准号:0636813
- 负责人:
- 金额:$ 69.44万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2007
- 资助国家:美国
- 起止时间:2007-09-01 至 2011-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Atmospheric warming has been associated with retreating glaciers, disintegrating ice shelves, and the increasing prevalence of icebergs in the Southern Ocean over the last decade. Our preliminary study of two icebergs in the NW Weddell Sea, an area of high iceberg concentration, showed significant delivery of terrestrial material accompanied by significant enhancement of phytoplankton and zooplankton/micronekton abundance, and primary production surrounding the icebergs. We hypothesize that nutrient enrichment by free-drifting icebergs will increase primary production and sedimentation of organic carbon, thus increasing the draw-down and sequestration of CO2 in the Southern Ocean and impacting the global carbon cycle. Our research addresses the following questions:1) What is the relationship between the physical dynamics of free-drifting icebergs and the Fe and nutrient distributions of the surrounding water column? 2) What is the relationship between Fe and nutrient distributions associated with free-drifting icebergs and the organic carbon dynamics of the ice-attached and surrounding pelagic communities (microbes, zooplankton, micronekton)? 3) What is impact on the export flux of particulate organic carbon from the mixed layer? An interdisciplinary approach is proposed to examine iceberg structure and dynamics, biogeochemical processes, and carbon cycling that includes measurement of trace element, nutrient and radionuclide distributions; organic carbon dynamics mediated by microbial, ice-attached and zooplankton communities; and particulate organic carbon export fluxes. Results from this project will further our understanding of the relationship between climate change and carbon sequestration in the Southern Ocean. Our findings will be incorporated into the Antarctic Research division of the Ocean Exploration Center (OEC) as part of the SIOExplorer: Digital Library Project. The OEC allows users to access content, which is classified to one of four levels: entry (grade K-6), student (grade 6-12), college, and research. Graduate students, undergraduates, teachers, and volunteers are important participants in the proposed field and laboratory work. For the K-12 level, a professional writer of children's books will participate in cruises to produce an account of the expedition and a daily interactive website.
在过去的十年里,气候变暖与冰川消退、冰架解体以及南大洋冰山日益增多有关。我们对西北韦德尔海的两座冰山的初步研究表明,陆地物质的大量输送伴随着浮游植物和浮游动物/微型生物丰度的显著增加,以及冰山周围的初级生产。我们假设,自由漂移的冰山的营养丰富将增加有机碳的初级生产和沉积,从而增加南大洋二氧化碳的吸收和封存,并影响全球碳循环。1)自由漂流冰山的物理动力学与Fe和周围水柱的营养盐分布有什么关系?2)Fe与自由漂流冰山的营养盐分布以及冰附和周围浮游动物群落(微生物、浮游动物、微型生物)的有机碳动态有什么关系?3)混合层对颗粒有机碳的输出通量有什么影响?提出了一种跨学科的方法来研究冰山的结构和动力学、生物地球化学过程和碳循环,其中包括测量微量元素、营养物质和放射性核素的分布;微生物、附着在冰上的和浮游动物群落介导的有机碳动力学;以及颗粒有机碳输出通量。该项目的成果将进一步加深我们对气候变化与南大洋碳封存之间关系的理解。我们的发现将被纳入海洋探索中心(OEC)南极研究部,作为SIOExplorer:数字图书馆项目的一部分。OEC允许用户访问内容,这些内容分为四个级别之一:入门(K-6年级)、学生(6-12年级)、学院和研究。研究生、本科生、教师和志愿者是拟议的现场和实验室工作的重要参与者。对于K-12级别,一名专业的儿童书籍作家将参加巡游,以制作关于探险的报道和一个日常互动网站。
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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Kenneth Smith其他文献
The calculation of atomic collision processes
- DOI:
- 发表时间:
1971 - 期刊:
- 影响因子:1.4
- 作者:
Kenneth Smith - 通讯作者:
Kenneth Smith
From natural order to convention in silent gesture
从自然秩序到约定俗成的无声姿态
- DOI:
- 发表时间:
2016 - 期刊:
- 影响因子:0
- 作者:
M. Schouwstra;Kenneth Smith;S. Kirby - 通讯作者:
S. Kirby
Is a holistic protolanguage a plausible precursor to language? A test case for a modern evolutionary linguistics
整体的原始语言是语言的合理先驱吗?
- DOI:
10.1075/is.9.1.02smi - 发表时间:
2008 - 期刊:
- 影响因子:1.5
- 作者:
Kenneth Smith - 通讯作者:
Kenneth Smith
Cumulative cultural evolution in a non-copying task in children and Guinea baboons
儿童和几内亚狒狒非复制任务中的累积文化进化
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
Carmen Saldana;J. Fagot;S. Kirby;Kenneth Smith;N. Claidière - 通讯作者:
N. Claidière
The role of Gestalt principles in the acquisition of non-adjacent dependencies in linguistic and non-linguistic sequences
格式塔原理在语言和非语言序列中非相邻依赖性习得中的作用
- DOI:
- 发表时间:
2009 - 期刊:
- 影响因子:0
- 作者:
J. Sturm;Kenneth Smith - 通讯作者:
Kenneth Smith
Kenneth Smith的其他文献
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{{ truncateString('Kenneth Smith', 18)}}的其他基金
InSIGHT: Integrating Statistical methods, Immunology and Genomics for Healthcare Translation
InSIGHT:整合统计方法、免疫学和基因组学进行医疗保健翻译
- 批准号:
MR/W018861/1 - 财政年份:2022
- 资助金额:
$ 69.44万 - 项目类别:
Research Grant
Supporting the Preparation of Science and Mathematics Teachers in Rural South Texas
支持德克萨斯州南部农村地区科学和数学教师的培养
- 批准号:
1758406 - 财政年份:2018
- 资助金额:
$ 69.44万 - 项目类别:
Continuing Grant
A BIOMARKER AND PATHWAY DISCOVERY PROGRAMME IN INFLAMMATORY DISEASE
炎症性疾病的生物标志物和通路发现计划
- 批准号:
MR/L019027/1 - 财政年份:2014
- 资助金额:
$ 69.44万 - 项目类别:
Research Grant
RAPID: Monitoring Deep Crustal Earthquake Sequence, Sierraville, California
RAPID:监测深部地壳地震序列,加利福尼亚州塞拉维尔
- 批准号:
1202664 - 财政年份:2012
- 资助金额:
$ 69.44万 - 项目类别:
Standard Grant
To develop therapies and a strategy for their translation to treat early lesions in multiple sclerosis
开发治疗多发性硬化症早期病变的疗法及其转化策略
- 批准号:
G0800954/1 - 财政年份:2008
- 资助金额:
$ 69.44万 - 项目类别:
Research Grant
Imaging the effects of inflammation and impulse activity on normal and demyelinated nerve tissue
成像炎症和冲动活动对正常和脱髓鞘神经组织的影响
- 批准号:
G0500814/2 - 财政年份:2007
- 资助金额:
$ 69.44万 - 项目类别:
Research Grant
Free Drifting Icebergs: Influence of Floating Islands on Pelagic Ecosystems in the Weddell Sea.
自由漂流冰山:漂浮岛屿对威德尔海中上层生态系统的影响。
- 批准号:
0650034 - 财政年份:2006
- 资助金额:
$ 69.44万 - 项目类别:
Continuing Grant
An autonomous bottom-transecting instrument for making long time-series measurements of phytopigment fluorescence and acoustically detectable sediment structure to abyssal depths
一种自主底部横断仪器,用于对深海植物色素荧光和声学可检测沉积物结构进行长时间序列测量
- 批准号:
0638505 - 财政年份:2006
- 资助金额:
$ 69.44万 - 项目类别:
Continuing Grant
Imaging the effects of inflammation and impulse activity on normal and demyelinated nerve tissue
成像炎症和冲动活动对正常和脱髓鞘神经组织的影响
- 批准号:
G0500814/1 - 财政年份:2006
- 资助金额:
$ 69.44万 - 项目类别:
Research Grant
Free Drifting Icebergs: Influence of Floating Islands on Pelagic Ecosystems in the Weddell Sea.
自由漂流冰山:漂浮岛屿对威德尔海中上层生态系统的影响。
- 批准号:
0529815 - 财政年份:2005
- 资助金额:
$ 69.44万 - 项目类别:
Continuing Grant
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Research on Quantum Field Theory without a Lagrangian Description
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