Paleo Glacier Dynamics

古冰川动力学

• 批准号: 290571337
• 负责人: Professor Dr. Heinz Veit
• 金额: --
• 依托单位: Geographisches Institut
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/290571337?language=en
• 关键词: Paleo; Glacier; Dynamics

The overall aim of P6 is to contribute to the reconstruction of the Late Pleistocene climate and landscape evolution of the Bale Mountains during the early phase of human occupation by studying past glaciations, glacier variations and periglacial processes. In Phase 1, research of P6 focused on the timing and spatial extent of former glaciations as a prerequisite to identify habitable areas (of interest for P1 and P2) in the upper valleys and on the Sanetti Plateau. Based on the established glacial chronology, it was demonstrated (in collaboration with P1 and P2) that the prehistoric presence of humans coincided with a period of extensive glaciation. However, the climate and glacier variations between the mapped and dated moraine stages remain poorly understood. In Phase 2, P6 therefore aims to expand geomorphological mapping and surface exposure dating by glacier mass balance and ice-flow modelling in order to reconstruct the continuous glacier variability, quantify the available amount of glacial meltwater in the valleys (relevant for P1) and determine (in cooperation with P3, P5, P7 and C2) temperature and precipitation changes over the last glacial cycle.

P6的总体目标是通过研究过去的冰川作用、冰川变化和冰缘过程，为重建人类占领早期巴莱山脉晚更新世气候和景观演变做出贡献。在第一阶段，P6的研究重点是前冰川的时间和空间范围，作为确定上游山谷和Sanetti高原可居住区域（P1和P2感兴趣）的先决条件。根据已建立的冰川年代学，（与P1和P2合作）证明了史前人类的存在与广泛的冰川期相吻合。然而，气候和冰川的变化之间的映射和过时的冰碛阶段仍然知之甚少。因此，在第二阶段，P6的目标是通过冰川质量平衡和冰流建模扩大地貌制图和地表暴露年代测定，以便重建冰川的连续变化，量化山谷中冰川融水的可用量（与P1有关），并确定（与P3、P5、P7和C2合作）末次冰期周期的温度和降水变化。