Coupling terrestrial LiDAR and video imagery to perform 3D intertidal beach topography

被引：36
作者：
Andriolo, Umberto [1 ]
Almeida, Luis Pedro [2 ,3 ]
Almar, Rafael [4 ]
机构：
[1] Univ Lisbon, Fac Sci, Inst Dorn Luiz, P-1749016 Lisbon, Portugal
[2] CNES LEGOS, Toulouse, France
[3] Univ Fed Rio Grande FURG, Rio Grande, Brazil
[4] Univ Toulouse, LEGOS, CNRS, CNES,IRD, Toulouse, France
来源：
COASTAL ENGINEERING | 2018年 / 140卷
关键词：
Shoreline; Remote sensing; Wave runup; Coastal morphodynamics; Swash zone; NATURAL BEACH; WAVE RUNUP; NHA TRANG; SHORELINE; SWASH; SETUP; RECOVERY; VIETNAM;
D O I：
10.1016/j.coastaleng.2018.07.009
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study investigates the possibility of combining two shore-based remote sensing techniques, 2D LiDAR and video imagery, to measure 3D intertidal beach topography. The shoreline elevation, measured on a single cross shore section of the beach by a 2D LiDAR, was combined with the video-derived shoreline contour to finally obtain intertidal beach topography. Vertical root-mean-square error between differential GPS and remotely derived intertidal beach profiles had an average value of 0.12 m, with maximum disparities of 0.14 m. Two 3D Digital Elevation Models (DEMs) of the beach produced over two tidal cycles demonstrated the feasibility of shore-based LiDAR-video system of describing in detail the short-term morphological evolution of the intertidal area. Results suggest that the LiDAR-video system can improve the capability of remotely surveying intertidal beach topography providing high quality measurements.
引用
收藏
页码：232 / 239
页数：8
相关论文
共 38 条
[1]   A video-based technique for mapping intertidal beach bathymetry [J].
Aarninkhof, SGJ ;
Turner, IL ;
Dronkers, TDT ;
Caljouw, M ;
Nipius, L .
COASTAL ENGINEERING, 2003, 49 (04) :275-289
[2]   Wave runup video motion detection using the Radon Transform [J].
Almar, Rafael ;
Blenkinsopp, Chris ;
Almeida, Luis Pedro ;
Cienfuegos, Rodrigo ;
Catalan, Patricio A. .
COASTAL ENGINEERING, 2017, 130 :46-51
[3]   Shoreline Response to a Sequence of Typhoon and Monsoon Events [J].
Almar, Rafael ;
Marchesiello, Patrick ;
Almeida, Luis Pedro ;
Duong Hai Thuan ;
Tanaka, Hitoshi ;
Nguyen Trung Viet .
WATER, 2017, 9 (06)
[4]   Surf-Swash Interactions on a Low-Tide Terraced Beach [J].
Almar, Rafael ;
Almeida, Pedro ;
Blenkinsopp, Chris ;
Catalan, Patricio A. .
JOURNAL OF COASTAL RESEARCH, 2016, :348-352
[5]   Video-Based Detection of Shorelines at Complex Meso-Macro Tidal Beaches [J].
Almar, Rafael ;
Ranasinghe, Roshanka ;
Senechal, Nadia ;
Bonneton, Philippe ;
Roelvink, Dano ;
Bryan, Karin R. ;
Marieu, Vincent ;
Parisot, Jean-Paul .
JOURNAL OF COASTAL RESEARCH, 2012, 28 (05) :1040-1048
[6]   A new breaking wave height direct estimator from video imagery [J].
Almar, Rafael ;
Cienfuegos, Rodrigo ;
Catalan, Patricio A. ;
Michallet, Herve ;
Castelle, Bruno ;
Bonneton, Philippe ;
Marieu, Vincent .
COASTAL ENGINEERING, 2012, 61 :42-48
[7]   Observations of gravel beach dynamics during high energy wave conditions using a laser scanner [J].
Almeida, L. P. ;
Masselink, G. ;
Russell, P. E. ;
Davidson, M. A. .
GEOMORPHOLOGY, 2015, 228 :15-27
[8]  
Almeida L. P., 2017, COAST DYNAM, P258
[9]   Observations of the swash zone on a gravel beach during a storm using a laser-scanner (Lidar) [J].
Almeida, Luis Pedro ;
Masselink, Gerd ;
Russell, Paul ;
Davidson, Mark ;
Poate, Tim ;
McCall, Robert ;
Blenkinsopp, Chris ;
Turner, Ian .
JOURNAL OF COASTAL RESEARCH, 2013, :636-641
[10]   Wave runup and overwash on a prototype-scale sand barrier [J].
Blenkinsopp, C. E. ;
Matias, A. ;
Howe, D. ;
Castelle, B. ;
Marieu, V. ;
Turner, I. L. .
COASTAL ENGINEERING, 2016, 113 :88-103
1234