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Shallow Water Bathymetry Derived from Green Wavelength Terrestrial Laser Scanner

机译：浅水浴，来自绿色波长陆地激光扫描仪

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摘要

Shallow water bathymetry has proved to be a challenging task for remote sensing applications. In this work, Green-Wavelength Terrestrial Laser Scanning (GWTLS) is employed to survey nearshore bathymetry under clear atmospheric and water conditions. First, the obtained seabed points were corrected for refraction and then geo-registration, and filtering processes were exerted to obtain an accurate bathymetric surface. Terrain analysis was performed with respect to a reference surface derived from classical surveying techniques. The overall analysis has shown that the best results stem from 35 degrees to 50 degrees incident angles, whereas for angles higher than 65 degrees measurements are not acceptable, although for the same angle in front and close to the instrument accuracy is considered acceptable due to the high laser power. Also, high resolution micro-topography, shallower than 1 m water depth, was managed to be captured. Systematic experimental approaches are expected to improve the GWTLS technique to detect bathymetry, which is anticipated to assist in mapping very shallow foreshore, tidal, and deltaic environments, to contribute conceptual into developing hybrid observation systems for coastal monitoring, and also to be applied in various maritime applications.
机译：浅水浴浴已被证明是遥感应用的具有挑战性的任务。在这项工作中，采用绿色波长陆地激光扫描（GWTL）在清晰的大气和水条件下进行近岸沐浴浴。首先，将获得的海床点校正折射，然后进行地理登记，并施加过滤过程以获得精确的碱基表面。对来自经典测量技术的参考表面进行地形分析。总体分析表明，最佳的结果源于35度至50度的入射角，而对于高于65度的角度是不可接受的，尽管对于前面的相同角度并且靠近仪器精度被认为是可接受的高激光功率。此外，捕获了高分辨率微观的微观形状，浅，比1米水深。预期系统实验方法改善了检测碱基测量的GWTLS技术，这预计将有助于绘制非常浅的前山路，潮汐和红细环境，以促进沿海监测的开发混合观察系统，也可以应用于各种海上申请。

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