NSFGEO-NERC: Quantifying the Modern and Glacial Ocean's Carbon Cycle Including Isotopes
NSFGEO-NERC:量化现代和冰川海洋的碳循环(包括同位素)
基本信息
- 批准号:NE/T009357/1
- 负责人:
- 金额:$ 15.68万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2019
- 资助国家:英国
- 起止时间:2019 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Data-constrained process-based models of the modern and glacial ocean's carbon cycle will be developed and analyzed using a novel method. The method decomposes Dissolved Inorganic Carbon (DIC = Cpre + Creg) accurately into preformed (Cpre = Csat + Cdis) and regenerated (Creg = Corg + Ccaco3) components, where Csat = Csat,phy + Csat,bio is the equilibrium saturation and Cdis = Cdis,phy + Cdis,bio the disequilibrium, each with physical and biological contributions, and Csoft and Ccaco3 are organic (soft tissue) and calcium carbonate (hard tissue) components. DIC = Cphy + Cbio can thus be separated into physical Cphy = Csat,phy + Cdis,phy and biological Cbio = Csat,bio + Cdis,bio + Csoft + Ccaco3 parts. Perturbation experiments will be used to attribute the change of each component, DIC and atmospheric CO2 to changes in individual variables (circulation, sea ice, temperature, sea level and iron fluxes). Different viable equilibrium states will be produced for the modern and glacial ocean incorporating recent innovations in ocean physics, such as different mixing parameterizations and ventilation diagnostics, and in biogeochemistry, such as variable elemental (C:P) stoichiometry, dissolved iron fluxes, sediment interactions, cycling of Pa/Th, and land carbon changes. This approach will allow quantitative, process-based understanding of glacial-interglacial changes in ocean carbon storage including uncertainty estimates. It will also elucidate the response of carbon components to circulation changes. The decomposition will be extended to carbon isotopes (d13CDIC).
将使用一种新方法开发和分析现代和冰川海洋碳周期的基于数据约束的过程模型。 The method decomposes Dissolved Inorganic Carbon (DIC = Cpre + Creg) accurately into preformed (Cpre = Csat + Cdis) and regenerated (Creg = Corg + Ccaco3) components, where Csat = Csat,phy + Csat,bio is the equilibrium saturation and Cdis = Cdis,phy + Cdis,bio the disequilibrium, each with physical and生物学贡献,CSOFT和CCACO3是有机(软组织)和碳酸钙(硬组织)成分。 dic = cphy + cbio因此可以分成物理cphy = csat,phy + cdis,phy和生物cbio = csat,bio + cdis,bio + csoft + csoft + ccaco3零件。扰动实验将用于将每个组件,DIC和大气CO2的变化归因于单个变量的变化(循环,海冰,温度,海平面和铁通量)。将为现代和冰川海洋生产不同的可行平衡状态,并结合海洋物理学的最新创新,例如不同的混合参数和通风诊断,以及生物地球化学,例如可变元素(C:P)stoichiotemerry(C:P)stoichiimentry,溶解的铁通量,沉积物的交互,pa/th和Land carbon的循环。这种方法将允许对海洋碳储存中冰川间冰的变化进行定量,基于过程的理解,包括不确定性估计。它还将阐明碳成分对循环变化的响应。分解将扩展到碳同位素(D13CDIC)。
项目成果
期刊论文数量(6)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Decomposing the Oxygen Signal in the Ocean Interior: Beyond Decomposing Organic Matter
分解海洋内部的氧气信号:超越分解有机物
- DOI:10.1029/2021gl092621
- 发表时间:2021
- 期刊:
- 影响因子:5.2
- 作者:Cassar N
- 通讯作者:Cassar N
Publisher Correction: Glacial deep ocean deoxygenation driven by biologically mediated air-sea disequilibrium
出版商更正:生物介导的海气不平衡驱动冰川深海脱氧
- DOI:10.1038/s41561-021-00710-7
- 发表时间:2021
- 期刊:
- 影响因子:18.3
- 作者:Cliff E
- 通讯作者:Cliff E
Fast Spin-Up of Geochemical Tracers in Ocean Circulation and Climate Models
海洋环流和气候模型中地球化学示踪剂的快速旋转
- DOI:10.1029/2022ms003447
- 发表时间:2023
- 期刊:
- 影响因子:6.8
- 作者:Khatiwala S
- 通讯作者:Khatiwala S
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Samar Khatiwala其他文献
Recent and future trends in atmospheric radiocarbon
大气放射性碳的近期和未来趋势
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
Heather Graven;Ryo Fujita;Ralph Keeling;Samar Khatiwala;Joeri Rogelj;Xiaomei Xu - 通讯作者:
Xiaomei Xu
Samar Khatiwala的其他文献
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{{ truncateString('Samar Khatiwala', 18)}}的其他基金
NSFGEO-NERC: Understanding the Drivers of Inert Gas Saturation to Better Constrain Ice Core-Derived Records of Past Mean Ocean Temperature
NSFGEO-NERC:了解惰性气体饱和的驱动因素,以更好地限制冰芯记录的过去平均海洋温度
- 批准号:
NE/W007258/1 - 财政年份:2021
- 资助金额:
$ 15.68万 - 项目类别:
Research Grant
Collaborative Research: Fast Spin Up of Ocean General Circulation Models Using Newton-Krylov Methods
合作研究:使用牛顿-克雷洛夫方法快速旋转海洋环流模型
- 批准号:
0824635 - 财政年份:2008
- 资助金额:
$ 15.68万 - 项目类别:
Standard Grant
Collaborative Research: Understanding Tidal Resonances in the Present-Day and Ice-Age Oceans
合作研究:了解当今和冰河时代海洋的潮汐共振
- 批准号:
0623611 - 财政年份:2006
- 资助金额:
$ 15.68万 - 项目类别:
Standard Grant
Accelerated Dynamical Spin Up of Ocean General Circulation Models
海洋环流模型的加速动态旋转
- 批准号:
0449703 - 财政年份:2004
- 资助金额:
$ 15.68万 - 项目类别:
Standard Grant
Collaborative Research:Interaction of eddies with mixed layers
合作研究:涡流与混合层的相互作用
- 批准号:
0336808 - 财政年份:2003
- 资助金额:
$ 15.68万 - 项目类别:
Continuing Grant
Sensitivity of Persistence Characteristics of Atmospheric Weather Regimes
大气天气状况持续特征的敏感性
- 批准号:
0233853 - 财政年份:2003
- 资助金额:
$ 15.68万 - 项目类别:
Standard Grant
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