SGER: Quantifying subglacial erosion rates and Timing of Holocene warm periods by in-situ 14C/10Be - A proof of concept

该项目将开发和应用一种新的原位碳-14/铍-10 （14C/10Be）计时器，作为量化山地冰川和冰盖比今天小的时期的工具。研究结果将提供全新世罗纳冰川波动的半连续记录，可与冰川能量平衡模型相结合，估算温度和降水变化。该项目还将有助于更好地了解高山冰川下冰下侵蚀的模式和速率，并将为新的同位素地球表面过程工具提供校准，该工具可应用于全球许多其他冰川和冰盖系统。这项研究将量化冰川比现在小的持续时间，进而推断出与气候变暖期有关的关键信息，这将提供有关当今全球变暖的相关信息。这是一个被忽视的调查领域，因为我们经常假设最近的气候变化一直朝一个方向持续。这项研究有可能对以往暖期的程度和性质提供现实的限制，并开发一种方法，将这一分析扩展到全球其他地区。

This project will develop and apply a novel in situ carbon-14/beryllium-10 (14C/10Be) chronometer as a tool to quantify periods during which mountain glaciers and ice-sheets were smaller than today. The results will provide a semi-continuous record of fluctuations of the Rhone Glacier during the Holocene, which can be combined with glacier energy balance models to estimate temperature and precipitation changes. The project will also aid in providing a better understanding of the patterns and rates of subglacial erosion beneath an alpine type glacier, and it will afford a calibration for the new isotopic earth surface process tool, which could be applied in many other glacier and ice-sheet systems globally. The research will quantify the duration in which glaciers were smaller than today and, in turn, infer key information related to climate warm periods, which will provide relevant information concerning the present-day global warmth. This is a neglected area of investigation, since we often operate under the assumption that recent climate change has been continuously in one direction. This research has the potential to provide realistic constraints on the extent and nature of previous warm episodes and to develop a method for extending this analysis to other parts of the globe.