Collaborative Research: P2C2 - Reconstructing rates and sources of sea-level change over the last ~150 thousand years from a new coral database

合作研究:P2C2 - 从新的珊瑚数据库重建过去约 15 万年海平面变化的速率和来源

基本信息

  • 批准号:
    1702587
  • 负责人:
  • 金额:
    $ 32.86万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2017
  • 资助国家:
    美国
  • 起止时间:
    2017-06-15 至 2020-11-30
  • 项目状态:
    已结题

项目摘要

COLLABORATIVE RESEARCH: RECONSTRUCTING RATES AND SOURCES OF SEA LEVEL CHANGE OVER THE LAST ~150 THOUSAND YEARS FROM A NEW CORAL DATABASE Future sea level rise, driven by shrinking land ice and ocean warming, threatens coastal populations, economic activity, infrastructure, and ecosystems around the world. Data on past sea level positions are critical for understanding how sensitive sea level and ice sheets are to temperature change. Paleo-sea level records come from several different sources. For time periods older than about 4000 years, some of the records with the best vertical resolution and most precise ages come from coral reefs, which grow at distinctive elevation ranges with respect to mean sea level.During the Last Interglacial stage, about 125,000 years ago, global average sea-surface temperature peaked around its current level, while analyses of corals and other proxies indicate global mean sea level peaked about 6-9 m higher than today. This magnitude of sea level rise - implying considerably smaller ice sheets in Greenland and West Antarctica - hints at the long-term commitment current warming has imparted to future sea level rise. The researchers in this project will use the coral sea level database to better understand rates of sea level and ice-sheet change over time, and how these rates relate to changes in the global climate. The knowledge gained will contribute to work by this team and others in the research community on future sea level projections. The project will provide a graduate student and a postdoctoral researcher with interdisciplinary training in oceanography, geology, geophysics and statistics. It will also synthesize a global reconstruction of sea-level over the last 150,000 years, and associated numerical methods for producing this reconstruction, that can be broadly used by the research community. This project focuses on four basic questions: (1) How much did global mean sea level vary over time, and how do local, relative sea levels vary in space, over this time period? (2) How fast did global mean sea level change during the last 150,000 years, and what was the relationship between changes in sea level and changes in temperature? (3) Can the spatial patterns of sea level change be used to separate the contributions of different ice sheets to global mean sea level change? (4) How does global mean sea level reconstructed using corals compare to other continuous records of sea level and climate change? To address these questions, the researchers will: (1) develop emulators of geophysical models of glacio-isostatic adjustment and mantle dynamic topography in order to estimate the contribution of different ice sheets to sea level change, (2) refine the history of seawater uranium isotope compositions that are important to interpreting accurate ages from U-Th-dated corals, and (3) incorporate ecological data about the relationship between coral growth position and sea level into a spatio-temporal statistical framework that links together the coral database and the geophysical models. The application of these techniques to the coral database for the last 150,000 years will provide a uniquely high-precision, continuous record of global mean sea level variability over this time period. This reconstruction will enable a more precise estimate of the magnitude of global mean sea level variability and rates of global mean sea level change, and should allow discrimination between global mean sea level contributions from North American and Arctic sources and those from Antarctic sources. These reconstructions will provide data with which to test the ice sheet models used to project future changes in addition to supporting the career development of a postdoctoral scholar and the training of a Ph.D. student.
合作研究:在过去的1.5万年中,重建率和海平面的来源发生了新的珊瑚数据库未来的海平面上升,这是由于陆上冰和海洋变暖的缩小,威胁沿海人口,经济活动,基础设施和世界各地的生态系统。过去的海平面位置的数据对于了解敏感的海平面和冰盖如何变化至关重要。古海级记录来自几个不同的来源。在大约4000岁大的时间段中,一些具有最佳垂直分辨率和最精确年龄的记录来自珊瑚礁,它们在平均海平面上在独特的海拔范围内增长。在最后一个冰川阶段,最后一个冰川阶段,大约125,000年前,大约125,000年前,全球平均水平的平均水平在其当前的水平上达到了高峰,同时又高于珊瑚的峰值,而在全球水平上分析了6个平均水平的峰值。海平面上升的这种幅度 - 这意味着在格陵兰和南极西部的冰盖较小 - 暗示了长期承诺当前的变暖已赋予未来的海平面上升。该项目中的研究人员将使用珊瑚海水平数据库更好地了解海平面和冰盖随时间变化的速度,以及这些速度与全球气候变化的关系。获得的知识将有助于该团队和研究界的其他人对未来海平面预测的工作。该项目将为研究生和博士后研究人员提供海洋学,地质,地球物理学和统计的跨学科培训。它还将在过去15万年中综合全球海平面的重建,并将其相关的数值方法用于生产这种重建,这可以由研究界广泛使用。该项目重点介绍了四个基本问题:(1)全球平均水平随着时间的流逝而变化了多少,当地的相对海平面在这个时期如何变化? (2)在过去的150,000年中,全球海平面的变化速度有多快,海平面变化与温度变化之间的关系是什么? (3)是否可以使用海平面变化的空间模式将不同的冰盖对全球平均海平面变化的贡献分开? (4)与其他连续的海平面和气候变化记录相比,使用珊瑚重建的全球平均海平面是如何重建的?为了解决这些问题,研究人员将:(1)开发冰川物理模型的模拟器和斜静态调整和地幔动态地形的模拟器,以估算不同的冰盖对海平面变化的贡献,(2)完善海水铀同位素组成的历史,这些历史对于从旋转旋转的旋转量和(3)凝聚的位置至关重要(3))(3)将珊瑚数据库和地球物理模型之间的时空统计框架分为时空统计框架。在过去的150,000年中,这些技术在珊瑚数据库中的应用将提供这段时间内全球平均海平面变异性的独特高精度,连续的记录。这种重建将使对全球平均海平面变异性和全球平均海平面变化的幅度进行更精确的估计,并应允许在北美和北极来源以及南极来源的全球平均海平面贡献之间进行歧视。这些重建将提供数据,除了支持博士后学者的职业发展外,还可以通过这些数据来测试用于投射未来变化的冰盖模型和博士学位的培训。学生。

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)
Postglacial relative sea-level histories along the eastern Canadian coastline
  • DOI:
    10.1016/j.quascirev.2018.09.043
  • 发表时间:
    2018-12
  • 期刊:
  • 影响因子:
    4
  • 作者:
    M. Vacchi;S. Engelhart;D. Nikitina;Erica L. Ashe;W. Peltier;K. Roy;Robert E Kopp;B. Horton
  • 通讯作者:
    M. Vacchi;S. Engelhart;D. Nikitina;Erica L. Ashe;W. Peltier;K. Roy;Robert E Kopp;B. Horton
Influence of Mantle Dynamic Topographical Variations on US Mid‐Atlantic Continental Margin Estimates of Sea‐Level Change
地幔动态地形变化对美国大西洋中部大陆边缘海平面变化估计的影响
  • DOI:
    10.1029/2020gl090521
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    5.2
  • 作者:
    Schmelz, William J.;Miller, Kenneth G.;Kopp, Robert E.;Mountain, Gregory S.;Browning, James V.
  • 通讯作者:
    Browning, James V.
Mapping Sea-Level Change in Time, Space, and Probability
The Paris Climate Agreement and future sea-level rise from Antarctica
  • DOI:
    10.1038/s41586-021-03427-0
  • 发表时间:
    2021-05-06
  • 期刊:
  • 影响因子:
    64.8
  • 作者:
    DeConto, Robert M.;Pollard, David;Dutton, Andrea
  • 通讯作者:
    Dutton, Andrea
Relative sea-level change in Newfoundland, Canada during the past ∼3000 years
  • DOI:
    10.1016/j.quascirev.2018.10.012
  • 发表时间:
    2018-12
  • 期刊:
  • 影响因子:
    4
  • 作者:
    A. Kemp;A. Wright;R. Edwards;R. Barnett;M. Brain;Robert E Kopp;N. Cahill;B. Horton;D. Charman;A. Hawkes;T. Hill;O. van de Plassche
  • 通讯作者:
    A. Kemp;A. Wright;R. Edwards;R. Barnett;M. Brain;Robert E Kopp;N. Cahill;B. Horton;D. Charman;A. Hawkes;T. Hill;O. van de Plassche
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Robert Kopp其他文献

MP01-17 AGE, SEX, AND CLIMATE DIFFERENCES IN THE TEMPERATURE-DEPENDENCE OF KIDNEY STONE PRESENTATION
  • DOI:
    10.1016/j.juro.2017.02.092
  • 发表时间:
    2017-04-01
  • 期刊:
  • 影响因子:
  • 作者:
    Gregory Tasian;Ana Vicedo-Cabrera;Robert Kopp;Lihai Song;Michelle Ross;Jose Pulido;Steven Warner;David Goldfarb;Susan Furth
  • 通讯作者:
    Susan Furth
COMMON ERA SEA-LEVEL BUDGETS ALONG THE U.S. ATLANTIC COAST INFORMED BY ROBUST FORAMINIFERAL-BASED RECONSTRUCTIONS
基于稳健的有孔虫重建的美国大西洋沿岸的共同时代海平面预算

Robert Kopp的其他文献

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{{ truncateString('Robert Kopp', 18)}}的其他基金

EAR-Climate: Catalytic: A Modern Spatio-Temporal Hierarchical Modeling Framework for Paleo-Environmental Data (PaleoSTeHM)
EAR-Climate:催化:古环境数据的现代时空分层建模框架 (PaleoSTeHM)
  • 批准号:
    2148265
  • 财政年份:
    2022
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Standard Grant
Large-scale CoPe: Megalopolitan Coastal Transformation Hub (MACH): Researching complex interactions between climate hazards and communities to inform governance of coastal risk.
大规模 CoPe:大都市沿海转型中心 (MACH):研究气候灾害与社区之间复杂的相互作用,为沿海风险治理提供信息。
  • 批准号:
    2103754
  • 财政年份:
    2021
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Cooperative Agreement
Collaborative Research: How Robust Are Common-Era Sea-Level Reconstructions?
合作研究:共纪海平面重建有多稳健?
  • 批准号:
    2002437
  • 财政年份:
    2020
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Standard Grant
Collaborative Research: P2C2 -- Connecting Common Era climate and sea level variability along the Eastern North American coastline
合作研究:P2C2——连接北美东部海岸线的共同时代气候和海平面变化
  • 批准号:
    1804999
  • 财政年份:
    2018
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Standard Grant
Collaborative Research: Multi-proxy sea-level reconstructions and projections in the middle Pacific Ocean
合作研究:中太平洋多代理海平面重建和预测
  • 批准号:
    1831450
  • 财政年份:
    2018
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Standard Grant
Collaborative Research: PREEVENTS Track 2: Thresholds and envelopes of rapid ice-sheet retreat and sea-level rise: reducing uncertainty in coastal flood hazards
合作研究:预防事件轨道 2:冰盖快速消退和海平面上升的阈值和范围:减少沿海洪水灾害的不确定性
  • 批准号:
    1663807
  • 财政年份:
    2017
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Continuing Grant
NRT: Coastal Climate Risk and Resilience (C2R2)
NRT:沿海气候风险和恢复力(C2R2)
  • 批准号:
    1633557
  • 财政年份:
    2016
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Standard Grant
Collaborative Research: P2C2 -- Statistical estimation of past ice sheet volumes from paleo-sea level records
合作研究:P2C2——根据古海平面记录对过去冰盖体积的统计估计
  • 批准号:
    1203415
  • 财政年份:
    2012
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Standard Grant

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Collaborative Research: P2C2--Medieval to Modern Climate Variability and Climate Change in the Great Plains
合作研究:P2C2——中世纪到现代的气候变率和大平原的气候变化
  • 批准号:
    2201243
  • 财政年份:
    2022
  • 资助金额:
    $ 32.86万
  • 项目类别:
    Standard Grant
Collaborative Research: P2C2--Reconstructing Southern Rocky Mountains Warm Season Temperature for the Past 2000 Years
合作研究:P2C2——重建落基山脉南部近2000年暖季温度
  • 批准号:
    2202400
  • 财政年份:
    2022
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    $ 32.86万
  • 项目类别:
    Standard Grant
Collaborative Research: P2C2--Continental Temperature Variability during Greenland Stadials and Interstadials from Subaqueous Speleothems
合作研究:P2C2——来自水下洞穴的格陵兰Stadials和Interstadials期间的大陆温度变化
  • 批准号:
    2202644
  • 财政年份:
    2022
  • 资助金额:
    $ 32.86万
  • 项目类别:
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Collaborative Research: P2C2--Continental Temperature Variability during Greenland Stadials and Interstadials from Subaqueous Speleothems
合作研究:P2C2——来自水下洞穴的格陵兰Stadials和Interstadials期间的大陆温度变化
  • 批准号:
    2202682
  • 财政年份:
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Collaborative Research: P2C2--Constraints on Last Interglacial and Late Holocene Global Mean Sea Level and Fingerprinting Polar Ice Mass Flux from Broadly Distributed Coastal Caves
合作研究:P2C2——对末次间冰期和晚全新世全球平均海平面的约束以及广泛分布的沿海洞穴的极地冰质量通量指纹识别
  • 批准号:
    2202698
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    2022
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    $ 32.86万
  • 项目类别:
    Standard Grant
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