Department of Hydraulic Engineering, Delft University of Technology, Stevinweg 1, 2628 CN, Delft, The Netherlands.
Baars-CIPRO, Hoofdweg 16a, 1175 LA, Lijnden, The Netherlands.
Sci Data. 2022 Apr 28;9(1):191. doi: 10.1038/s41597-022-01291-9.
Sandy coasts form the interface between land and sea and their morphologies are highly dynamic. A combination of human and natural forcing results in morphologic changes affecting both nature values and coastal safety. Terrestrial laser scanning (TLS) is a technique enabling near-continuous monitoring of the changing morphology of a sandy beach-dune system with centimetre-order accuracy. In Kijkduin, The Netherlands, a laser scanner sampled one kilometre of coast at hourly intervals for about six months. This resulted in over 4,000 consecutive topographic scans of around one million points each, at decimetre-order point spacing. Analysis of the resulting dataset will offer new insights into the morphological behaviour of the beach-dune system at hourly to monthly time scales, ultimately increasing our fundamental scientific understanding of these complex geographic systems. It further provides the basis for developing novel algorithms to extract morphodynamic and geodetic information from this unique 4D spatiotemporal dataset. Finally, experiences from this TLS setup support the development of improved near-continuous 3D observation of both natural and anthropogenic scenes in general.
沙质海岸形成陆地和海洋的交界，其形态高度动态。人类和自然的综合作用导致了地貌变化，影响了自然价值和海岸安全。地面激光扫描（TLS）是一种技术，能够以厘米级的精度对沙滩-沙丘系统的变化形态进行近乎连续的监测。在荷兰的凯克敦，激光扫描仪每隔一小时对一公里的海岸进行采样，持续了大约六个月。这产生了超过 4000 个连续的地形扫描，每个扫描约有一百万点，点间距为分米级。对所得数据集的分析将为沙滩-沙丘系统在小时到每月时间尺度上的形态行为提供新的见解，最终提高我们对这些复杂地理系统的基本科学认识。它进一步为从这个独特的 4D 时空数据集提取形态动力和大地测量信息提供了基础。最后，从这个 TLS 设置中获得的经验支持了开发改进的自然和人为场景的近连续 3D 观测的发展。
