Bridging Timescales of Tibetan Plateau Environmental Change: An Integration of Earth System Modeling with Modern and Paleo- environmental Proxies
弥合青藏高原环境变化的时间尺度:地球系统建模与现代和古环境代理的整合
基本信息
- 批准号:202948994
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Priority Programmes
- 财政年份:2011
- 资助国家:德国
- 起止时间:2010-12-31 至 2015-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The Tibetan Plateau is the largest orogenic plateau on Earth and formed in response to continental collision over the last ~50 Million years. The formation of this high-elevation plateau surface is invoked for changes in global and regional climate, as well as in ocean chemistry. Despite their significance, the processes responsible for Tibetan Plateau formation and the evolution of global and regional climate during its formation are poorly resolved. In this proposal we build upon our previous related work on the Andean Plateau. Our focus is to quantify how global and regional climate have responded to Tibetan Plateau surface uplift over timescales ranging from millenial (e.g. last glacial maximum) to geologic (~50 Ma). More specifically, we will test the hypothesis that if Indo-Asian collision, Cenozoic plateau surface uplift, and glaciations are responsible for climate change, then appropriately parameterized paleoclimate simulations of these processes should predict the observed variability in Tibetan proxy data (e.g. δ18O in soil carbonates, lacustrine climate archives), and quantify the paleoclimate and paleoelevation history of the plateau over different time scales. We will test this hypothesis through an integration of global and regional paleoclimate models with paleoclimate proxies. These experiments will bridge spatial and temporal timescales of environmental change over the plateau thereby forming a baseline for understanding modern and potential future climate variability over the plateau.
青藏高原是地球上最大的造山高原,是近5000万年来大陆碰撞的响应。这种高海拔高原表面的形成是全球和区域气候变化以及海洋化学变化的原因。尽管它们意义重大,但青藏高原形成过程以及在其形成过程中全球和区域气候的演变却没有得到很好的解决。在这项提案中,我们建立在我们以前关于安第斯高原的相关工作的基础上。我们的重点是量化全球和区域气候对青藏高原地表抬升的响应,时间尺度从几千年(例如最后一次冰川高峰期)到地质(约50 Ma)。更具体地说,我们将检验这一假设,即如果印度支那-亚洲碰撞、新生代高原地表抬升和冰川作用是气候变化的原因,那么这些过程的适当参数化古气候模拟应该预测西藏替代数据(例如土壤碳酸盐中的δ18O、湖泊气候档案)中的观测变异性,并量化不同时间尺度上高原的古气候和古海拔历史。我们将通过将全球和区域古气候模型与古气候指标相结合来检验这一假设。这些实验将连接高原地区环境变化的时空时间尺度,从而为了解高原地区现代和潜在的未来气候变异性奠定了基线。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Professor Dr. Todd Alan Ehlers其他文献
Professor Dr. Todd Alan Ehlers的其他文献
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{{ truncateString('Professor Dr. Todd Alan Ehlers', 18)}}的其他基金
Neogene Paleoelevation and Paleoclimate of the Central Alps - Linking Earth Surface Processes to Lithospheric Dynamics
中央阿尔卑斯山的新近纪古海拔和古气候 - 将地球表面过程与岩石圈动力学联系起来
- 批准号:
365266215 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Priority Programmes
Quantifying Tectonic and Glacial Controls on Topography: Patagonia, South America
量化构造和冰川对地形的控制:南美洲巴塔哥尼亚
- 批准号:
313504114 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Research Grants
Constraining paleo-dynamics and sediment transport of Antarctic stream flow across grounding lines - from source to sink
限制南极溪流穿过接地线的古动力学和沉积物输送——从源头到汇
- 批准号:
275409824 - 财政年份:2015
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Infrastructure Priority Programmes
Bridging Timescales of Climate and Vegetation Change Effects on Denudation: A Coupled Modeling Approach
弥合气候和植被变化对剥蚀影响的时间尺度:耦合建模方法
- 批准号:
280608291 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Priority Programmes
Quantifying Long-Term Glacial Erosion in Antarctica with Numerical Modeling and Thermochronology
通过数值模拟和热年代学量化南极洲的长期冰川侵蚀
- 批准号:
172562479 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Infrastructure Priority Programmes
Quantifiying deformation and erosion at the Yakutat plate corner (SE Alaska) with integrated thermochronology and numerical modelling
通过综合热年代学和数值模拟量化雅库塔特板块角(阿拉斯加东南部)的变形和侵蚀
- 批准号:
173238485 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Research Grants
Integrated records of tectonic and climate interactions in the Northern Alpine Foreland Basin sedimentary architecture
北高山前陆盆地沉积构造构造与气候相互作用的综合记录
- 批准号:
442540772 - 财政年份:
- 资助金额:
-- - 项目类别:
Priority Programmes
Quantifying the Effects of Mantle Processes and Climate Variability on HinterlandDenudation in the Central and Eastern Alps since the Oligocene
量化渐新世以来地幔过程和气候变化对阿尔卑斯山中部和东部腹地剥蚀的影响
- 批准号:
442540856 - 财政年份:
- 资助金额:
-- - 项目类别:
Priority Programmes
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