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A High-Precision LiDAR-Based Method for Surveying and Classifying Coastal Notches

Institute of Marine and Coastal Sciences, Faculty of Geosciences, University of Szczecin, Mickiewicza 18, 70-383 Szczecin, Poland
Faculty of Geodesy and Cartography, Warsaw University of Technology, pl. Politechniki 1, 00-661 Warszawa, Poland
Faculty of Civil and Environmental Engineering, Technion—Israel Institute of Technology, 32000 Haifa, Israel
CIMA—Centro de Investigação Marinha e Ambiental, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
Departamento de Geologia Universidade Federal do Rio Grande do Norte, Campus Universitario, Natal, RN 59078-970, Brasil
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2018, 7(8), 295;
Received: 5 July 2018 / Revised: 20 July 2018 / Accepted: 23 July 2018 / Published: 24 July 2018
PDF [5155 KB, uploaded 24 July 2018]


Formation of notches is an important process in the erosion of seaside cliffs. Monitoring of coastal notch erosion rate and processes has become a prime research focus for many coastal geomorphologists. Observation of notch erosion rate considers a number of characteristics, including cliff collapse risk, distinction of historical sea levels, and recognition of ongoing erosional mechanisms. This study presents new approaches for surveying and classifying marine notches based on a high-precision light detection and ranging (LiDAR)-based experiment performed on a small region of a coastal cliff in southern Portugal. A terrestrial LiDAR scanner was used to measure geometrical parameters and surface roughness of selected notches, enabling their classification according to shape and origin. The implemented methodology proved to be a highly effective tool for providing an unbiased analysis of marine morphodynamic processes acting on the seaside cliffs. In the analyzed population of voids carved into Miocene calcarenites in a coastal cliff section, two types of notch morphology were distinguished, namely U-shaped and V-shaped. The method presented here provides valuable data for landscape evaluation, sea-level changes, and any other types of analyses that rely on the accurate interpretation of cliff morphological features. View Full-Text
Keywords: coastal notches; LiDAR; notch formations; coasts; coastal cliffs; monitoring coastal notches; LiDAR; notch formations; coasts; coastal cliffs; monitoring

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Terefenko, P.; Zelaya Wziątek, D.; Dalyot, S.; Boski, T.; Pinheiro Lima-Filho, F. A High-Precision LiDAR-Based Method for Surveying and Classifying Coastal Notches. ISPRS Int. J. Geo-Inf. 2018, 7, 295.

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