Coordination Funds

协调基金

• 批准号: 409531233
• 负责人: Professor Dr. Michael Becht
• 金额: --
• 依托单位: Lehrstuhl für Physische Geographie
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/409531233?language=en
• 关键词: Coordination; Funds

The research unit investigates the influence of past and ongoing climate change on the activity of and interactions between different processes in alpine geosystems since the Little Ice Age (LIA). We differentiate the investigation of changes into four time slices: Time Slice I (1850-1920), Time Slice II (1920-1980), Time Slice III (1980-present/end of project phase I) and the future Time Slice IV (present-2050). The latter represents the main, though not the exclusive, focus of the second project phase. Based on the central research hypothesis that the effects of climatic changes since 1850 are already detectable in reactions of the alpine geosystem, the research unit investigates these systems exemplarily in three catchments south and north of the main Alpine ridge, which were selected due to extensive preliminary work, high morphodynamics with low anthropogenic influence and good data situation.The investigations in the first project phase focused on the changes in the geosystems and their causes from 1850 until today and will be continued in the second application phase (project years 4-6) to further improve the data situation. The focus of the work in the second phase is on the model-based analysis of the future development of the geosystems until 2050, based on the data of the dynamically downscaled climate model projections and the models for subsystems in complex alpine catchments calibrated in the first project phase. The project period of three decades in the second project phase was chosen because the expected forecast uncertainties (climate scenarios) and the internal variabilities of the processes in the geosystems are still low, but irreversible changes that have already begun and are continuing, e.g. in the cryosphere, will have consequences especially in the forecast period. The research unit's investigations are oriented towards three main research questions:I. Is it possible to identify significant responses in alpine geosystems in the context of climate change, also taking into account spatial and temporal uncertainties in data and model analyses? II. How do climatically induced changes in system compartments influence geosystem properties in terms of process dynamics? Do interactions amplify or weaken the effects of climate change?III. How do changes in processes and process interactions propagate through the system (connectivity, sediment delivery)? Will there be increasing or decreasing morphodynamics?The complex interplay of atmospheric forcing, hydro- and cryospheric changes and the determination of their consequences for different geomorphological processes in alpine geosystems requires a concerted approach, resulting in a multidisciplinary structure of the research unit.

该研究单位调查了过去和正在进行的气候变化对自小冰期（LIA）以来高山地理系统中不同过程的活动和相互作用的影响。我们将变化的调查分为四个时间片：时间片I（1850-1920），时间片II（1920-1980），时间片III（1980-现在/项目第一阶段结束）和未来的时间片IV（现在-2050）。后者是项目第二阶段的主要重点，但不是唯一重点。根据中心研究假设，即自1850年以来气候变化的影响已经在阿尔卑斯山地理系统的反应中检测到，研究单位在阿尔卑斯山主脊以南和以北的三个集水区对这些系统进行了示范性研究，这些集水区是由于大量的前期工作而选择的，高形态动力学，低人为影响和良好的数据情况。项目第一阶段的调查重点是地理系统的变化及其原因，1850年至今，并将在第二个应用阶段（项目第4-6年）继续进行，以进一步改善数据状况。第二阶段工作的重点是基于动态缩小尺度的气候模型预测数据和第一阶段校准的复杂高山集水区子系统模型，对2050年之前地理系统的未来发展进行基于模型的分析。项目阶段。项目第二阶段选择30年的项目期是因为预期的预测不确定性（气候情景）和地理系统过程的内部变化仍然很低，但已经开始并正在继续的不可逆转的变化，例如在冰冻圈，将产生后果，特别是在预测期内。研究单位的调查主要针对三个研究问题：一。是否有可能在气候变化的背景下确定高山地理系统的重大响应，同时考虑数据和模型分析中的空间和时间不确定性？二.气候引起的系统隔间的变化如何影响地质系统的动力学性质？ 相互作用会放大还是削弱气候变化的影响？三.过程和过程相互作用的变化如何通过系统传播（连通性、沉积物输送）？形态动力学会增加还是减少？大气强迫、水圈和冰冻圈变化的复杂相互作用及其对高山地理系统中不同地貌过程的影响的确定，需要采取协调一致的办法，从而形成研究单位的多学科结构。