In recent years, increasing tourism and development in the coastal dune area of the South East of Ireland have resulted in greater pressure on the environment, resulting in issues including soil erosion, flooding and habitat loss. Topographic mapping across a dune field is important for the development of targeted land management actions that maintain biodiversity and ecological functions. Developments in surveying technology, including LiDAR, terrestrial laser scanners (TLS) and aerial surveying from Remotely Piloted Aircraft Systems (RPAS), have enabled high-resolution and high-accuracy spatial data to be gathered quickly and relatively easily for 3D topographic modelling of a coastal dune complex. To-date, however, the relative efficacies of these three modelling methods, in the context of coastal dune modelling, has not been explored. This paper compares high-end methods based on LiDAR, TLS and RPAS technologies, for the topographic modelling of coastal dune complexes with particular reference to the Brittas-Buckroney dune complex in the South East of Ireland. The results identify the advantages and disadvantages of the respective technologies and highlight the efficacy of RPAS, in particular, for topographic modelling of coastal dune complexes. These results can provide reference information for others when selecting suitable methods for topographic modelling of similar environments.

中文翻译：

---

沿海沙丘复合体地形建模高端方法的比较

近年来，爱尔兰东南部沿海沙丘地区旅游业的发展和发展增加了对环境的压力，导致了水土流失，洪水和生境丧失等问题。沙丘场的地形图对于制定有针对性的土地管理行动至关重要，以维持生物多样性和生态功能。测量技术的发展，包括LiDAR，地面激光扫描仪（TLS）和来自远程驾驶飞机系统（RPAS）的航空测量，使得能够快速，相对容易地收集高分辨率和高精度的空间数据，以对飞机进行3D地形建模。沿海沙丘情结。然而，迄今为止，在沿海沙丘建模的背景下，尚未探索这三种建模方法的相对效率。本文比较了基于LiDAR，TLS和RPAS技术的高端方法，对沿海沙丘复合体进行地形建模，特别是参考了爱尔兰东南部的Brittas-Buckroney沙丘复合体。结果确定了各自技术的优缺点，并突出了RPAS的功效，特别是对沿海沙丘复合体的地形建模。当为类似环境的地形建模选择合适的方法时，这些结果可以为其他人提供参考信息。结果确定了各自技术的优缺点，并突出了RPAS的功效，特别是对沿海沙丘复合体的地形建模。当为类似环境的地形建模选择合适的方法时，这些结果可以为其他人提供参考信息。结果确定了各自技术的优缺点，并突出了RPAS的功效，特别是对沿海沙丘复合体的地形建模。当为类似环境的地形建模选择合适的方法时，这些结果可以为其他人提供参考信息。