Reconstruction of atmosphere-ocean circulation patterns for geological time slices by self-consistent coupled model simulations

自洽耦合模型模拟重建地质时间片的大气-海洋环流模式

• 批准号: 172674186
• 负责人: Professorin Dr. Katja Matthes
• 金额: --
• 依托单位: Sektion 1.3: Erdsystem-Modellierung
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/172674186?language=en
• 关键词: Reconstruction; atmosphere; ocean; circulation; patterns

The goal of this project is to reconstruct three-dimensional atmospheric and oceanic circulation patterns with self-consistent global coupled atmosphere-ocean model simulations for selected geological time scales. The results will be regionalized for the South Atlantic. Studying the development of the South Atlantic, its rifted margins and sedimentary onshore and offshore basins will provide important insights into the processes involved for creation of ocean basins, the role of sedimentary basins for the carbon cycle, as well as changes in ocean currents and their climatic effects. Key tectonic events such as the opening of the South Atlantic or the Drake Passage and their significant effect on climate will be studied in order to investigate processes in the coupled atmosphere-hydrosphere system. This project will provide important detailed information on atmosphere-ocean circulation patterns, such as atmospheric temperature, wind and pressure fields, heat, momentum and fresh water fluxes, wind stress, and, in particular, 3-dimensional oceanic current and temperature distributions to other SAMPLE projects studying the structural evolution of the margins on a lithosphere scale, or sedimentary features in the Argentine basin, or the generation, migration, and leakage of hydrocarbon resources. It will also deliver detailed contributions to climate relevant processes in the atmosphere-hydrosphere system and help to minimize discrepancies in observational and modeling studies, such as the paradox that the mid to-high latitude continental interiors and the poles in the Eocene were much warmer than today, while tropical sea surface temperatures were apparently near-modern.

该项目的目标是在选定的地质时间尺度上用自洽的全球大气-海洋耦合模式模拟重建三维大气和海洋环流模式。结果将在南大西洋进行区域化。研究南大西洋及其裂谷边缘和陆上和近海沉积盆地的发展，将对海洋盆地的形成过程、沉积盆地在碳循环中的作用以及洋流及其气候影响的变化提供重要的见解。将研究南大西洋或德雷克海峡的开放等关键构造事件及其对气候的重大影响，以调查大气-水圈耦合系统中的过程。该项目将为其他样本项目提供关于大气-海洋环流模式的重要详细信息，例如大气温度、风场和压力场、热通量、动量和淡水通量、风应力，特别是三维洋流和温度分布，以研究岩石圈规模边缘的构造演化，或阿根廷盆地的沉积特征，或碳氢资源的生成、迁移和泄漏。它还将对大气-水圈系统中与气候有关的过程作出详细的贡献，并有助于尽量减少观测和模拟研究中的差异，例如，始新世的中高纬度大陆内部和两极比今天温暖得多，而热带海洋表面的温度显然是近现代的。