AON: Continuation of long-term observations of the Beaufort Gyre environmental changes in 2019-2020 to enhance understanding of the Arctic's impact on climate variability

AON:继续对2019-2020年波弗特环流环境变化进行长期观测,以加强对北极对气候变化影响的了解

基本信息

  • 批准号:
    1845877
  • 负责人:
  • 金额:
    $ 192.72万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2019
  • 资助国家:
    美国
  • 起止时间:
    2019-03-01 至 2023-02-28
  • 项目状态:
    已结题

项目摘要

The Beaufort Gyre (BG) is a unique circulation component within the Arctic Ocean's physical environmental system reflecting a set of specific atmospheric, sea-ice, oceanic and bio-geo-ecological conditions that have significant interrelationships with the Arctic-wide and global climate system. One of the most striking Arctic observations in the 21st century has been a reduction in both sea-ice extent and thickness, and an increase of freshwater content in the BG region. At present, there are insufficient observations or theories to reach a consensus among the different opinions about these changes and their impact on climate. The BG summer freshwater content has increased by 6,600 km3 since 2003. Not only does this have important consequences for Arctic sea-ice, ocean thermodynamics, and ecosystems, but a possible fresh water release from the Arctic of this magnitude is enough to cause a salinity anomaly in the North Atlantic with a magnitude comparable to the Great Salinity Anomaly of the 1970s, which could influence global climate by reducing the ocean meridional overturning circulation and result in cooling. Thus, the BG system is a potential source to force significant climate changes, likely at decadal time scales. Data returned from this project and distributed freely via the project website and archived with the NSF Arctic Data Center will continue to advance our understanding of the physical, chemical, and biological drivers of environmental change in the Arctic, their relationship to the climate system, and linkages to global processes. Long-term time series of project data will facilitate numerical model initialization and validation and stimulate general interest in Arctic science issues. The knowledge gained under this project will continue to be vital to a wide variety of Arctic processes and climate studies, to operational forecasting and other Arctic research programs, and will spur further valuable investigations of the Arctic Ocean. This project will continue to expand international cooperation and promote widespread access to Arctic for both researchers and the general public. Educational activities will include training of graduate students providing them the opportunity to participate in BG cruises and advising them in BG data analysis. The project data will continue to be used by the Forum for Arctic Modeling and Observational Synthesis (FAMOS) project and Arctic community to validate and improve Arctic regional and global models, test hypotheses, and answer scientific questions.The Beaufort Gyre Observing System (BGOS) will be continued throughout 2019-2020 to observe a set of environmental parameters using bottom-anchored moorings and shipboard measurements to continue the long-term time-series at standard locations. Ship-based synoptic sampling covering the entire BG will continue to be performed each summer in collaboration with Canadian scientists to observe reversal of the climatic circulation regime that has been persistent in one sense over the observation period. Temperature, salinity, oxygen, nutrients, barium, CFCs and carbon tetrachloride, alkalinity, total CO2, dissolved inorganic carbon, tritium/3-He and delta-O-18 will continue to be measured and analyzed along sections at 140W, 150W, ~75N and ~78N using a shipboard CTD/rosette. Between CTD/rosette casts, expendable CTDs that profile to 1100m depth will continue to be used to increase spatial resolution of the temperature and salinity fields. Three BGOS moorings redeployed in 2018 will acquire precise data on the variations of the vertical distribution of seawater properties, bottom pressures, and sea ice draft at the same scientifically important sites within the BG system and will be retrieved in 2020.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
波弗特环流(BG)是北冰洋物理环境系统中的一个独特的环流组成部分,反映了一系列与整个北极和全球气候系统具有重要相互关系的特定大气、海冰、海洋和生物地质生态条件。21世纪最引人注目的北极观测之一是海冰范围和厚度的减少,以及BG地区淡水含量的增加。目前,对于这些变化及其对气候的影响,不同观点之间还没有足够的观察或理论来达成共识。自2003年以来,BG夏季淡水含量增加了6600千米3。这不仅对北极海冰、海洋热力学和生态系统产生了重要影响,而且北极可能释放的如此规模的淡水足以在北大西洋引起盐度异常,其规模可与20世纪70年代的大盐度异常相当,这可能会通过减少海洋经向翻转环流而影响全球气候,导致温度下降。因此,BG系统是一个可能迫使气候发生重大变化的潜在来源,很可能是在十年时间尺度上。从该项目返回并通过项目网站免费分发并在NSF北极数据中心存档的数据将继续促进我们对北极环境变化的物理、化学和生物驱动因素、它们与气候系统的关系以及与全球进程的联系的理解。项目数据的长期时间序列将促进数值模式的初始化和验证,并激发人们对北极科学问题的普遍兴趣。通过该项目获得的知识将继续对各种北极过程和气候研究、业务预报和其他北极研究计划至关重要,并将促进对北冰洋的进一步有价值的调查。该项目将继续扩大国际合作,促进科研人员和公众更广泛地进入北极。教育活动将包括对研究生的培训,为他们提供参加BG邮轮的机会,并在BG数据分析方面向他们提供建议。北极建模和观测综合论坛(FAMOS)项目和北极社区将继续使用项目数据,以验证和改进北极区域和全球模型,测试假设,并回答科学问题。Beaufort Gyre观测系统(BGOS)将在整个2019-2020年继续使用,使用底部锚定系泊和船上测量来观测一组环境参数,以在标准地点继续进行长期时间序列。每年夏天,将继续与加拿大科学家合作,进行覆盖整个英属维尔京群岛的船舶天气取样,以观察在观察期内在某种意义上持续的气候环流制度的逆转。温度、盐度、氧气、营养物质、钡、氯氟烃和四氯化碳、碱度、总二氧化碳、溶解无机碳、氚/3-氦和增量-O-18将继续在140W、150W、~75N和~78N的剖面上使用船上CTD/玫瑰花环进行测量和分析。在CTD/玫瑰花模型之间,将继续使用剖面深度为1100米的消耗型CTD,以提高温度和盐度场的空间分辨率。2018年重新部署的三个BGOS系泊设备将获得关于BG系统内具有重要科学意义的相同地点的海水特性、海底压力和海冰吃水垂直分布变化的准确数据,并将于2020年收回。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

期刊论文数量(11)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Climate-Relevant Ocean Transport Measurements in the Atlantic and Arctic Oceans
大西洋和北冰洋与气候相关的海洋运输测量
  • DOI:
    10.5670/oceanog.2021.supplement.02-04
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    2.8
  • 作者:
    Berx, Barbara;Volkov, Denis;Baehr, Johanna;Baringer, Molly;Brandt, Peter;Burmeister, Kristin;Cunningham, Stuart;de Jong, Marieke;de Steur, Laura;Dong, Shenfu
  • 通讯作者:
    Dong, Shenfu
Time scales of the Greenland Freshwater Anomaly in the Subpolar North Atlantic
北大西洋副极地格陵兰淡水异常的时间尺度
  • DOI:
    10.1175/jcli-d-20-0610.1
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    4.9
  • 作者:
    Dukhovskoy, D.S.;Yashayaev, I.;Chassignet, E.P.;Myers, P.G.;Platov, G.;Proshutinsky, A.
  • 通讯作者:
    Proshutinsky, A.
Inorganic Carbon and p CO 2 Variability During Ice Formation in the Beaufort Gyre of the Canada Basin
加拿大盆地波弗特环流冰形成过程中无机碳和 p CO 2 的变化
  • DOI:
    10.1029/2019jc015109
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0
  • 作者:
    DeGrandpre, Michael D.;Lai, Chun‐Ze;Timmermans, Mary‐Louise;Krishfield, Richard A.;Proshutinsky, Andrey;Torres, Daniel
  • 通讯作者:
    Torres, Daniel
Declining O 2 in the Canada Basin Halocline Consistent With Physical and Biogeochemical Effects of Pacific Summer Water Warming
加拿大盆地盐跃层 O 2 下降与太平洋夏季海水变暖的物理和生物地球化学效应一致
  • DOI:
    10.1029/2022jc019418
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Arroyo, Ashley;Timmermans, Mary‐Louise;Le Bras, Isabela;Williams, William;Zimmermann, Sarah
  • 通讯作者:
    Zimmermann, Sarah
The Arctic
北极
  • DOI:
    10.1175/bams-d-22-0082.1
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    8
  • 作者:
    Thoman, Richard L.;Druckenmiller, Matthew L.;Moon, Twila A.;Andreassen, L. M.;Baker, E.;Ballinger, Thomas J.;Berner, Logan T.;Bernhard, Germar H.;Bhatt, Uma S.;Bjerke, Jarle W.
  • 通讯作者:
    Bjerke, Jarle W.
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Isabela Le Bras其他文献

A model for community-driven development of best practices: the Ocean Observatories Initiative Biogeochemical Sensor Data Best Practices and User Guide
社区驱动的最佳实践开发模型:海洋观测站倡议生物地球化学传感器数据最佳实践和用户指南
  • DOI:
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    H. Palevsky;Sophie Clayton;Heather Benway;Mairead Maheigan;D. Atamanchuk;Roman Battisti;Jennifer Batryn;Annie Bourbonnais;Ellen M. Briggs;Filipa Carvalho;Alison P. Chase;Rachel Eveleth;Rob Fatland;Kristen E. Fogaren;J. Fram;Susan E. Hartman;Isabela Le Bras;Cara C. Manning;J. Needoba;M. Neely;Hilde Oliver;Andrew C. Reed;J. Rheuban;Christina Schallenberg;Ian Walsh;Christopher Wingard;Kohen Bauer;Baoshan Chen;Jose Cuevas;Susana Flecha;Micah Horwith;Melissa Melendez;Tyler Menz;S. Rivero;N. Roden;Tobias Steinhoff;P. N. Trucco;Michael F. Vardaro;Meg F. Yoder
  • 通讯作者:
    Meg F. Yoder

Isabela Le Bras的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Isabela Le Bras', 18)}}的其他基金

Collaborative Research: NSFGEO-NERC: MEZCAL: Methods for Extending the horiZontal Coverage of the Amoc Latitudinally and back in time (MEZCAL)
合作研究:NSFGEO-NERC:MEZCAL:扩展 Amoc 纬度和时间回水平覆盖范围的方法 (MEZCAL)
  • 批准号:
    2409764
  • 财政年份:
    2023
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Standard Grant
Oxygen pathways into the deep ocean: investigating boundary current ventilation in the western Irminger Sea
进入深海的氧气通道:调查伊尔明格海西部的边界流通风
  • 批准号:
    2122579
  • 财政年份:
    2022
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Standard Grant
AON Collaborative Research: Continuation of long-term Beaufort Gyre observations in 2020-2024 to enhance understanding of the Arctic's role in climate variability
AON 合作研究:2020-2024 年继续进行长期波弗特环流观测,以加深对北极在气候变化中的作用的了解
  • 批准号:
    1949881
  • 财政年份:
    2020
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Continuing Grant
NSFGEO-NERC: Collaborative Research: Subpolar North Atlantic Processes - Dynamics and pRedictability of vAriability in Gyre and OverturNing (SNAP-DRAGON)
NSFGEO-NERC:合作研究:北大西洋次极过程 - 环流和翻转变化的动力学和可预测性 (SNAP-DRAGON)
  • 批准号:
    2038481
  • 财政年份:
    2020
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Standard Grant

相似海外基金

Construction of a post-discharge continuation support manual with a view to preventing readmission of patients with long-term psychiatric inpatient schizophrenia
制定出院后继续支持手册,以防止长期精神分裂症住院患者再次入院
  • 批准号:
    21K10667
  • 财政年份:
    2021
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
12/22 Limited Competition for the Continuation of the Diabetes Prevention Program Outcomes Study (DPPOS) - Clinical Center
12/22 继续进行糖尿病预防计划成果研究 (DPPOS) 的有限竞争 - 临床中心
  • 批准号:
    10459025
  • 财政年份:
    2021
  • 资助金额:
    $ 192.72万
  • 项目类别:
AON Collaborative Research: Continuation of long-term Beaufort Gyre observations in 2020-2024 to enhance understanding of the Arctic's role in climate variability
AON 合作研究:2020-2024 年继续进行长期波弗特环流观测,以加深对北极在气候变化中的作用的了解
  • 批准号:
    1949881
  • 财政年份:
    2020
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Continuing Grant
AON Collaborative Research: Continuation of long-term Beaufort Gyre observations in 2020-2024 to enhance understanding of the Arctic's role in climate variability
AON 合作研究:2020-2024 年继续进行长期波弗特环流观测,以加深对北极在气候变化中的作用的了解
  • 批准号:
    1950077
  • 财政年份:
    2020
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Continuing Grant
International comparative study on long-term care continuation of family members and long-term care insurance system
家庭成员长期护理延续与长期护理保险制度的国际比较研究
  • 批准号:
    18K02146
  • 财政年份:
    2018
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Study on continuation and decline of long-established engineering family firms
老牌工程家族企业的延续与衰落研究
  • 批准号:
    26780227
  • 财政年份:
    2014
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Systematic studies on Life-Continuation Plan of high-rise buildings from long-period ground motions due to Mega-thrust events
特大推力事件长周期地震动影响高层建筑寿命延续方案的系统研究
  • 批准号:
    26242034
  • 财政年份:
    2014
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
A Study for Continuation of Local Long Term Elder Care Service System
地方长期养老服务体系延续研究
  • 批准号:
    22300250
  • 财政年份:
    2010
  • 资助金额:
    $ 192.72万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
The Look AHEAD Continuation: Action for Health in Diabetes
展望未来续篇:糖尿病健康行动
  • 批准号:
    8031247
  • 财政年份:
    2010
  • 资助金额:
    $ 192.72万
  • 项目类别:
CHILDHOOD ASTHMA MANAGEMENT PROGRAM CONTINUATION STUDY PHASE/3
儿童哮喘管理计划继续研究阶段/3
  • 批准号:
    8166617
  • 财政年份:
    2009
  • 资助金额:
    $ 192.72万
  • 项目类别:
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了