Timescales of sediment dynamics, climate and topographic change in mountain landscapes (SedyMONT)

SedyMONT将确定适应持续气候变化的景观形成过程的组成部分。这需要确定沉积物的来源和汇，并在不同环境的地点量化沉积物转移的机制和速率。在SedyMONT，我们建议通过以下方式解决这一问题：(A)结合气候驱动的沉积物通量对地貌变化的贡献的短期监测与十年至千年尺度平均的地表过程数据的各种来源，以及(B)在沉积物产生和转移的概念模型框架内解释观测结果。这些结果将指导对气候变化的景观响应的预测。主要目标是了解沉积物产生和转移的时间尺度和机制并确定它们在选定的欧洲山区景观中的影响，记录来自各种历史来源的不同时间尺度(从数千年到现代)过程速率的变化，包括在项目期间进行的监测，分析景观的继承(例如，由于先前冰川的影响)如何影响过程速率，调查景观连通性如何影响沉积物转移速率和停留时间，开发一个概念性建模框架来理解沉积物从源到汇的转移，根据观测数据和区域气候模式情景分析研究地区降水事件的频率和幅度，制定研究基地侵蚀、产沙量和地貌变化的时间序列和年表。根据监测历史选择地点，涵盖整个欧洲的一系列具有代表性的山区环境，涵盖整个过程和过程相互作用。将利用现代地球物理、地球化学、地貌和遥感工具对每个遗址进行分析，以确定景观变化、通量变化、气候变化、沉积物来源和遗产的时间序列和年表。

SedyMONT will identify the components of landscape forming processes that have adapted to ongoing climate change. This requires sediment sources and sinks to be identified and the mechanisms and rates of sediment transfer to be quantified at sites in different environments. In SedyMONT we propose to address this topic by (a) combining short-term monitoring of the contribution of climate-driven sediment fluxes to changes in landscape morphology with various sources of surface process data averaged over decadal to millennial scales, and by (b) interpreting the observations within a conceptual modelling framework for sediment production and transfer. The results will guide predictions of landscape response to climate change.The main objectives are tounderstand the timescales and mechanisms of sediment production and transfer and to identify their effects in selected European mountain landscapes,document changes in process rates over different timescales (thousands of years to modern) from various historical sources, including monitoring conducted during the project,analyze how the inheritance of the landscape (e.g., due to the influence of previous glaciations) has affected process rates,investigate how landscape connectivity affects sediment transfer rates and residence times, develop a conceptual modelling framework to understand the transfer of sediment from sources to sinks, analyse the frequency and magnitude of precipitation events in the study areas from observed data and regional climate model scenarios,develop time series and chronologies of erosion, sediment yield and landscape change in the study basins.Sites are selected based on their monitoring history, covering a range of representative mountainous settings across Europe spanning the whole range of processes and process interactions. Each site will be analyzed using modern geophysical, geochemical, geomorphic and remote sensing tools for time series and chronologies of landscape change, flux change, climate change, sediment sources and for inheritance.