Three-dimensional data collection for coastal management - efficiency and applicability of terrestrial and airborne methods

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Jose A Goncalves (Author) FCUP; Bastos, L (Author) FCUP; Madeira, S (Author) Other; Magalhães, A. (Author) FCUP; Bio, A (Author) Other

Journal

Title: International Journal of Remote Sensing

Vol. 39

Pages: 9380-9399

ISSN: 0143-1161

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 4 Citations

Other information

Authenticus ID: P-00P-RJD

DOI: 10.1080/01431161.2018.1523591

Abstract (EN): Regular monitoring is essential to understand coastal morphodynamics and anthropic as well as natural impacts, at different temporal and spatial scales. A stereoscopic video-based terrestrial mobile mapping system, three airborne digital photography systems (mounted on a small manned airplane, a fixed-wing UAV and a multi-rotor UAV, respectively) and airborne LiDAR were compared in terms of: system features, such as range, autonomy, acquisition and operating costs; information supplied, its type and precision; and constraints to system applicability in coastal topographic surveys. Systems differed in resolution, efficiency, and applicability. The terrestrial and UAV-based systems provided the most accurate 3D data, being particularly suited for small-scale, high-resolution surveys. UAVs were easy to deploy, but limited by weather condition, particularly wind speed. Observations from a plane were most efficient and suited for larger areas. Airborne systems had the advantage of being less (UAV) to non-invasive (plane) and thus suitable for the monitoring of sensitive areas (e.g. dunes) and/or areas with difficult access. Systems should be chosen according to the specific survey aims, spatial scale, and local conditions, taking into account their applicability and cost-benefit ratios. They may complement each other to provide a comprehensive picture of coastal morphology and dynamics at different scales.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 20