USEFULNESS OF UAV GREEN LASER MEASUREMENT IN BEACH MANEGEMENT

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  • 砂浜管理におけるUAVグリーンレーザ計測の有用性に関する研究

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<p> While sea level rise and changes in external forces such as waves due to climate change are expected, it is required to enhance and improve the monitoring of topographical changes shallower than the moving limit water depth in sandy beach management, sandy beaches, and control facilities for drift sand. In this study, we verified the usefulness of UAV green laser measurement which is low cost than multi-beam measurement and can measure both land and water topography in a plane by UAV green laser measurement, water quality surveys (SS, transparency, COD) and multi-beam measurement for accuracy verification on the Iwami coast (Kugami area) in the eastern part of Tottori prefecture. As a result, it was confirmed that it is possible to measure shallower than the bar and the trough (especially the breaker point) which was difficult to measure accurately due to specific flight specifications, and the accuracy is equivalent to multi-beam measurement.</p>

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