Simple Techniques for Retrieval of Wind Wave Periods and Directions from Optical Images Sequences in Wave Tanks
| Autor: | Fabio Nascimento, Carlos Eduardo Parente, Henrique Rapizo, Uggo Pinho, Nelson Violante-Carvalho, V. A. d'Ávila |
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| Rok vydání: | 2016 |
| Předmět: |
010504 meteorology & atmospheric sciences
Ecology Computer science Regular wave 01 natural sciences 010309 optics Simple (abstract algebra) 0103 physical sciences Wind wave Coupling system 0105 earth and related environmental sciences Earth-Surface Processes Water Science and Technology Remote sensing |
| Zdroj: | Journal of Coastal Research. 321:1227-1234 |
| ISSN: | 1551-5036 0749-0208 |
| DOI: | 10.2112/jcoastres-d-15-00072.1 |
| Popis: | Rapizo, H.; d'Avila, V.; Violante-Carvalho, N.; Pinho, U.; Parente C.E., and Nascimento, F., 2016. Simple techniques for retrieval of wind wave periods and directions from optical images sequences in wave tanks. Optical techniques are potentially suitable for overcoming some of the limitations faced by single-point sensors, like buoys, in retrieving spatial properties of wind-generated waves. However, most of the approaches that have been addressed in the literature employ complex configurations that use a coupling system between cameras, making its implementation difficult. This article describes simple techniques for measuring the period and direction of multimodal, regular waves, employing a single, commonly available camera. Furthermore, there is no special requirement for light conditions, making its implementation feasible, in both indoor and outdoor environments. Several tests were conducted in a multidirectional tank, varying the steepness and direction of the waves. The optical measureme... |
| Databáze: | OpenAIRE |
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