Collaborative Research: The seasonal dynamics of CO2, primary production, and DMS in the Western Antarctic Peninsula: Measurements of pools and processes using mass spectrometry
Collaborative Research: The seasonal dynamics of CO2, primary production, and DMS in the Western Antarctic Peninsula: Measurements of pools and processes using mass spectrometry
批准号:
1043593
负责人:
Francois Morel
金额:
$43.48万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2011
资助国家:
美国
项目状态:
已结题
起止时间:
2011-07-01 至 2015-06-30
中文摘要
南大洋在海洋地球化学和全球气候中起着关键作用。沿着南极西部半岛(WAP),过去五十年来冬季气温上升了5 ºC以上,海冰的持续时间和范围大幅减少,导致生态急剧扰动。 初级生产力和气候活跃的气体循环对WAP的物理和化学环境的持续变化的敏感性是了解该地区潜在的地球化学气候反馈的关键。本项目的目标是描述和了解WAP中初级生产和气候活性气体二氧化碳(CO2)和二甲硫醚(DMS)的季节动态。该项目将研究(1)pCO 2、温度和光照的季节性变化与总初级生产力、净初级生产力和净群落生产力之间的关系;(2)地表水pCO 2和温度的变化在多大程度上推动了主要浮游植物物种组合组成的生态变化,并改变了DMS循环的关键过程。 该研究将采用膜入口质谱法监测帕尔默站LTER站点周围海水中的溶解气体,并使用示踪化合物进行生理/生化分析。该研究将提供有关WAP中初级生产力和溶解气体浓度与表面水文和海冰覆盖相关的时间演变的前所未有的信息。实地研究将得到实验室实验的支持,对模式物种进行详细的碳代谢研究。 该项目将大大有助于了解该区域的季节性生物地球化学动态,该区域对持续的气候扰动特别敏感,对全球海气二氧化碳交换至关重要。该项目将培养两名研究生,并将纳入普林斯顿大学的本科教学计划,包括新的讲座和新的实验室模块。通过参与者社群活动,该项目还将促进公共宣传和政策。
英文摘要
The Southern Ocean plays a key role in marine biogeochemistry and global climate. Along the Western Antarctic Peninsula (WAP), winter air temperatures have increased by more than 5 ºC over the past five decades, and sea ice duration and extent have decreased substantially, leading to dramatic ecological perturbations. The sensitivity of primary production and climate-active gas cycling to on-going changes in the physical and chemical environment of the WAP is the key to understanding potential biogeochemical climate feedbacks in this region. The objective of this project is to characterize and understand the seasonal dynamics of primary production and climate-active gases carbon dioxide (CO2) and dimethylsulfide (DMS) in the WAP. The project will examine (1) the relationships among seasonal changes in pCO2, temperature and light with respect to gross primary production, net primary production, and net community production; (2) the extent to which changes in surface water pCO2 and temperature drive ecological shifts in the dominant phytoplankton species assemblage composition, and alter key processes in the DMS cycle. The research will employ membrane inlet mass spectrometry to monitor dissolved gases in ambient seawater at the Palmer Station LTER site and conduct physiological/biochemical assays with tracer compounds. The research will provide unprecedented information on the temporal evolution of primary production and dissolved gas concentrations in the WAP in relation to surface hydrography and sea ice cover. Field studies will be supported by laboratory experiments with model species subjected to detailed studies of carbon metabolism. This project will contribute significantly to the understanding of seasonal biogeochemical dynamics in a region that is particularly sensitive to ongoing climate perturbations and important for the global air-sea exchange of CO2. The project will train two graduate students and will be integrated in the undergraduate teaching program at Princeton University, including new lectures and new laboratory modules. Through the PIs community activities the project will also contribute to public outreach and policy.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Iron uptake by marine bacteria: regulation and function of weak and strong siderophores
-
批准号:1657639
-
项目类别:Standard Grant
-
资助金额:$49.5万
-
财政年份:2017
-
负责人:Francois Morel
-
依托单位:
Ocean Acidification: Effect on the Availability of Divalent Trace Metals to Phytoplankton
-
批准号:1315200
-
项目类别:Standard Grant
-
资助金额:$49.44万
-
财政年份:2013
-
负责人:Francois Morel
-
依托单位:
Collaborative Research: Ocean Acidification-Category 1: Effects of pCO2 and pH on Photosynthesis, Respiration and Growth in Marine Phytoplankton
-
批准号:1040965
-
项目类别:Standard Grant
-
资助金额:$139.05万
-
财政年份:2010
-
负责人:Francois Morel
-
依托单位:
Effects of Ocean Acidification on Nutrient Availability and Requirements in Phytoplankton
-
批准号:0825192
-
项目类别:Standard Grant
-
资助金额:$109.6万
-
财政年份:2008
-
负责人:Francois Morel
-
依托单位:
The Oceanography and Biochemistry of Cadmium
-
批准号:0351499
-
项目类别:Continuing Grant
-
资助金额:$101.22万
-
财政年份:2004
-
负责人:Francois Morel
-
依托单位:
Center for Environmental BioInorganic Chemistry
-
批准号:0221978
-
项目类别:Continuing Grant
-
资助金额:$545.0万
-
财政年份:2002
-
负责人:Francois Morel
-
依托单位:
The 1998 Gordon Research Conference in Chemical Oceanography in II Ciocco, Italy
-
批准号:9803348
-
项目类别:Standard Grant
-
资助金额:$1.0万
-
财政年份:1998
-
负责人:Francois Morel
-
依托单位:
Institute for Environmental Bioinorganic Chemistry (IEBIC)
-
批准号:9810248
-
项目类别:Continuing Grant
-
资助金额:$708.0万
-
财政年份:1998
-
负责人:Francois Morel
-
依托单位:
Trace Metal Regulation of Carbon Acquisition in Oceanic Phytoplankton
-
批准号:9711291
-
项目类别:Continuing Grant
-
资助金额:$50.19万
-
财政年份:1997
-
负责人:Francois Morel
-
依托单位:
Biogeochemical Cycling of Trace Metals in Fresh and Coastal Water
-
批准号:9630572
-
项目类别:Standard Grant
-
资助金额:$37.0万
-
财政年份:1996
-
负责人:Francois Morel
-
依托单位:
Biological Cycling of Trace Metals in the Sea
-
批准号:9116427
-
项目类别:Continuing grant
-
资助金额:$0.0万
-
财政年份:1992
-
负责人:Francois Morel
-
依托单位:
Strong Chelators in Natural Waters
-
批准号:9113483
-
项目类别:Continuing grant
-
资助金额:$0.0万
-
财政年份:1992
-
负责人:Francois Morel
-
依托单位:
US-France Cooperative Research: Particle Dynamics and Biogeochemistry of Trace Elements in Natural Waters
-
批准号:8919917
-
项目类别:Standard Grant
-
资助金额:$1.19万
-
财政年份:1990
-
负责人:Francois Morel
-
依托单位:
ABR: Trace Metal Limitation in the Sea
-
批准号:8917688
-
项目类别:Continuing grant
-
资助金额:$0.0万
-
财政年份:1990
-
负责人:Francois Morel
-
依托单位:
Trace Metal Transport and Redox Systems in Marine Phytoplankton
-
批准号:8615545
-
项目类别:Continuing grant
-
资助金额:$0.0万
-
财政年份:1987
-
负责人:Francois Morel
-
依托单位:
1986 Gordon Research Conference on Environmental Sciences: Water - June 16-20, 1986
-
批准号:8607186
-
项目类别:Standard Grant
-
资助金额:$1.45万
-
财政年份:1986
-
负责人:Francois Morel
-
依托单位:
Metal Uptake By Phytoplankton
-
批准号:8317532
-
项目类别:Continuing grant
-
资助金额:$0.0万
-
财政年份:1984
-
负责人:Francois Morel
-
依托单位:
Equipment for Studies of Mass Transport in Aquatic Systems
-
批准号:8410969
-
项目类别:Standard Grant
-
资助金额:$0.0万
-
财政年份:1984
-
负责人:Francois Morel
-
依托单位:
Iron Uptake and Nutrition in Marine Phytoplankton
-
批准号:8118103
-
项目类别:Continuing grant
-
资助金额:$0.0万
-
财政年份:1982
-
负责人:Francois Morel
-
依托单位:
Development of an Analytical Method For Measuring Iron Species in Seawater
-
批准号:7919549
-
项目类别:Standard Grant
-
资助金额:$0.0万
-
财政年份:1980
-
负责人:Francois Morel
-
依托单位:
国内基金
海外基金
登录
查看更多内容
Research on Quantum Field Theory without a Lagrangian Description
-
批准号:24ZR1403900
-
项目类别:省市级项目
-
资助金额:--
-
批准年份:2024
-
负责人:SATOSHI NAWATA
-
依托单位:
Cell Research
-
批准号:31224802
-
项目类别:专项基金项目
-
资助金额:24.0万元
-
批准年份:2012
-
负责人:程磊
-
依托单位:
Cell Research
-
批准号:31024804
-
项目类别:专项基金项目
-
资助金额:24.0万元
-
批准年份:2010
-
负责人:程磊
-
依托单位:
Cell Research (细胞研究)
-
批准号:30824808
-
项目类别:专项基金项目
-
资助金额:24.0万元
-
批准年份:2008
-
负责人:张爱兰
-
依托单位:
Research on the Rapid Growth Mechanism of KDP Crystal
-
批准号:10774081
-
项目类别:面上项目
-
资助金额:45.0万元
-
批准年份:2007
-
负责人:滕冰
-
依托单位: