QUEST Deglaciation: Climate and Biogeochemical Cycles during the last deglaciation.

QUEST 冰消期：末次冰消期期间的气候和生物地球化学循环。

• 批准号: NE/D001773/1
• 负责人: Paul Valdes
• 金额: $ 25.74万
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FD001773%2F1
• 关键词: QUEST; Deglaciation; Climate; Biogeochemical; Cycles

The goal of the project is to investigate the two-way interactions between climate and biogeochemical cycling since the Last Glacial Maximum (LGM: 21,000 years ago). Considerable effort has been made on understanding and modelling the climate responses to external forcing during the last glacial-interglacial cycle, both in terms of the equilibrium response to forcing at key times (specifically the LGM and the mid-Holocene, through the Palaeoclimate Modelling Intercomparison Project, PMIP) and aspects of the transient response through the deglaciation (a focus of several RAPID projects). There have been studies of the impact of climate changes on trace gas and aerosol emissions, most of which have focussed on the extreme state of the LGM. Recent modelling developments now make it possible to examine the biogeochemical response to transient climate changes, and to examine the feedbacks of changes in aerosols and trace gases on the climate system. We will use FAMOUS (a low-resolution version of the Hadley Centre model) as a primary platform for transient modelling experiments to investigate biogeochemical responses and feedbacks through the transition from the last glacial to the present interglacial epoch. This modelling work will be complemented by additional simulations using GENIE-IGCM which will allow us to investigate uncertainties. A pre-requisite for simulating the biogeochemical cycles is the need for an accurate representation of past climates itself. Therefore we propose two interrelated activities: (a) simulation of climate changes for periods between the LGM and Holocene and evaluation of these simulations using existing and new palaeodata syntheses to determine if the models are able to represent regional climate changes adequately, and (b) development of representations of biogeochemical processes within Earth System models and of complementary data sets that will be used to evaluate the simulated changes in biogeochemical cycles.

该项目的目的是研究自上次冰川最大值以来气候与生物地球化学循环之间的双向相互作用（LGM：21，000年前）。在最后一次冰川间 - 冰期周期中，在理解和建模气候对外部强迫的响应方面已经做出了巨大的努力，这是根据对在关键时间强迫的均衡反应（特别是LGM和中新世中的强迫响应，都通过palaeocalimate建模的建模，PMIP，PMIP，PMIP）以及通过退化的方面（一个快速的项目）（一个快速的项目）（遍布几个项目）。已经研究了气候变化对痕量气体和气溶胶排放的影响，其中大多数集中在LGM的极端状态上。现在，最近的建模发展使得可以检查对瞬态气候变化的生物地球化学反应，并检查气候系统上气溶胶和痕量气体变化的反馈。我们将使用著名的（Hadley Center模型的低分辨率版本）作为瞬态建模实验的主要平台，以通过从最后一个冰川到当前的冰川间时期的过渡来研究生物地球化学响应和反馈。使用Genie-IGCM的其他模拟将补充这项建模工作，这将使我们能够研究不确定性。模拟生物地球化学周期的先决条件是需要准确代表过去的气候本身。因此，我们提出了两种相互关联的活动：（a）使用现有和新的古代合成器对LGM和全新世之间的气候变化进行模拟，以及对这些模拟进行评估，以确定模型是否能够充分表示区域气候变化，以及（b）在地球系统模型和互补数据集中的代表性变化中，该模型的开发是在地球系统模型中的开发，以使其与BIOCELATION模型的更改相结合，以使其与BioCealsy的模型变化，以使其与Bio Geochemical Processect and互补的数据相结合。周期。

项目成果

A new concept for the paleoceanographic evolution of Heinrich event 1 in the North Atlantic

• DOI: 10.1016/j.quascirev.2011.02.003
• 发表时间: 2011-05
• 期刊: Quaternary Science Reviews
• 影响因子: 4
• 作者: J. Stanford;E. Rohling;S. Bacon;A. Roberts;F. Grousset;M. Bolshaw

Sea-level probability for the last deglaciation: A statistical analysis of far-field records

• DOI: 10.1016/j.gloplacha.2010.11.002
• 发表时间: 2011-12
• 期刊: Global and Planetary Change
• 影响因子: 3.9
• 作者: J. Stanford;R. Hemingway;E. Rohling;P. Challenor;M. Medina‐Elizalde;A. J. Lester

Holocene temperature evolution in the Northern Hemisphere high latitudes - model-data comparisons

• DOI: 10.1016/j.quascirev.2017.07.018
• 发表时间: 2017-10
• 期刊: Quaternary Science Reviews
• 影响因子: 4
• 作者: Yurui Zhang;H. Renssen;H. Seppä;P. Valdes

Global patterns in the divergence between phylogenetic diversity and species richness in terrestrial birds

• DOI: 10.1111/jbi.12916
• 发表时间: 2017-04
• 期刊: Journal of Biogeography
• 影响因子: 3.9
• 作者: A. Voskamp;D. Baker;P. Stephens;P. Valdes;S. G. Willis

Vertical density gradient in the eastern North Atlantic during the last 30,000 years

• DOI: 10.1007/s00382-011-1148-4
• 发表时间: 2012-08
• 期刊: Climate Dynamics
• 影响因子: 4.6
• 作者: M. Rogerson;G. Bigg;E. Rohling;J. Ramirez