Linking Paleo-Observations with Climate Models in order to understand Holocene environmental variability of coastal East Antartica (HoloAnt)

将古观测与气候模型联系起来，以了解东南极洲沿海的全新世环境变化（HoloAnt）

• 批准号: 197668488
• 负责人: Dr. Sonja Berg
• 金额: --
• 依托单位: Institut für Geologie und Mineralogie
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/197668488?language=en
• 关键词: Linking; Paleo; Observations; Climate; Models

The aim of this interdisciplinary research project is an enhanced understanding of the driving factors of Holocene climate variability along the East Antarctic coast, a key question in the face of future Antarctic climate change. By combining two innovative approaches, the proposed study will clearly go beyond previous research work. Firstly, the project focuses on a renewed compilation of existing paleoclimate reconstructions from East Antarctica with improved chronologies of sedimentary records by new compound-specific radiocarbon studies. Secondly, high-resolution climate simulations and paleoenvironmental reconstructions from the wider Prydz Bay region will be tightly coupled to distinguish between local, regional and large-scale climate patterns. In-Depth evaluation of available data sets and numerical simulation results will lead to a rigorous test and further improvement of the models and proxies used for paleoenvironmental reconstructions. This interdisciplinary project will thereby deliver new, important insights to the present stage of the East Antarctic late Quaternary environmental history. It will substantially contribute to an enhanced understanding of the interactions between historical variability in climate and paleoenvironmental reconstructions along the East Antarctic coast.

这一跨学科研究项目的目的是加强对南极东部海岸全新世气候变异性的驱动因素的了解，这是面对未来南极气候变化的一个关键问题。通过将两种创新方法结合起来，拟议的研究显然将超越以往的研究工作。首先，该项目的重点是通过新的特定化合物放射性碳研究改进沉积记录的年表，重新汇编南极东部现有的古气候重建。其次，来自更广泛的普里兹湾地区的高分辨率气候模拟和古环境重建将紧密结合在一起，以区分当地、区域和大规模的气候模式。对现有数据集和数值模拟结果的深入评估将导致对用于古环境重建的模型和代理进行严格的测试和进一步改进。因此，这一跨学科项目将为东南极晚第四纪环境历史的现阶段提供新的、重要的见解。这将大大有助于增进对南极东部海岸气候历史变异性和古环境重建之间相互作用的理解。