Non-invasive geophysical and remote sensing methods to map and characterize relevant structures and processes

该项目是DFG研究组CAOS第一阶段资助的F项目的继续，在该项目中，我们评估了不同的地面地球物理技术在探索有关地下结构、特征和过程的水文系统方面的潜力。在此项目成果的基础上，我们现在专注于进一步开发选定的地球物理技术(时间推移探地雷达成像)，以加深我们对地块和山坡尺度上的水文过程的理解。此外，我们建议对现代遥感技术进行系统评估，因为它们目前是有效探索更大区域或整个流域的唯一手段。在这里，我们关注全波形激光扫描和高光谱成像的组合，因为它们可以分别提供关于地球表面的几何和物理属性的详细信息。我们认为，要将遥感与地球物理和常规水文野外技术提供的点/地块/山坡尺度数据联系起来，需要进一步的方法创新。例如，我们计划建立一个独特的实地实验室，以更好地了解地球物理和遥感技术对不同自然和人工水文事件的反应，并制定勘探战略，提高地球物理和遥感在各种空间尺度上的水文应用的适用性。

This project is a continuation of project F funded in the first phase of the DFG Research Group CAOS, where we evaluated the potential of different ground-based geophysical techniques for exploring hydrological systems regarding subsurface structures, characteristics, and processes. Building up on the results of this project, we now focus on further developing selected geophysical techniques (timelapse GPR imaging) for deepening our understanding of hydrological processes at the plot and hillslope scale. In addition, we propose to systematically evaluate modem remote sensing techniques because they cun-ently represent the only means to efficiently explore larger areas or entire catchments. Here, we focus on a combination of full-waveform laserscanning and hyperspectral imaging because they can provide detailed Information regarding geometrical and physical properties of earth's surface, respectively. To link remote sensing with point/plot/hillslope scale data as provided by geophysics and conventional hydrological field techniques, we believe that further methodological innovations are needed. For example, we plan to establish a unique field laboratory to better understand the responses of geophysical and remote sensing techniques to different natural and artificial hydrological events and to develop exploration strategies advancing the applicability of geophysics and remote sensing for hydrological applications at a variety of spatial scales.