A5040162623- Ocean Waves and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Coastal and Marine Dynamics
- Underwater Acoustics Research
- Underwater Vehicles and Communication Systems
- Climate variability and models
- Advanced Fiber Optic Sensors
- Geophysics and Gravity Measurements
- Oil Spill Detection and Mitigation
- Arctic and Antarctic ice dynamics
Ocean Energy (Norway)
2024
The University of Melbourne
2017-2019
Ministry of Water Resources of the People's Republic of China
2019
Ministry of Natural Resources
2019
First Institute of Oceanography
2019
CRC for Spatial information
2019
Qingdao National Laboratory for Marine Science and Technology
2019
Swinburne University of Technology
2015-2017
Universidade Federal do Rio de Janeiro
2014-2015
Abstract Global wave hindcasts are developed using the third generation spectral model WAVEWATCH III with observation‐based source terms (ST6) and a hybrid rectilinear‐curvilinear, irregular‐regular‐irregular grid system (approximately at ). Three distinct global produced: (a) long‐term hindcast (1979–2019) forced by ERA5 conventional winds (b) two short‐term (2011–2019) driven NCEP climate forecast (CFS)v2 neutral , respectively. The input field for ice is sourced from Ocean Sea Ice...
Abstract Despite many recent developments of the parameterization for wave dissipation in spectral models, it is evident that when waves propagate onto strong adverse currents rate energy not properly estimated. The issue current‐induced studied through a comprehensive data set tidal inlet Port Phillip Heads, Australia. parameters analyzed are significantly modulated by currents. Wave height conditions opposing (ebb tide) can reach twice offshore value, whereas during coflowing (flood), be...
Abstract Observations of wind stress during extreme winds are required to improve predictability tropical cyclone track and intensity. A common method approximate the is by measuring turbulent momentum flux directly. However, high speeds, wave heights typically same order magnitude as instrument heights, thus, observations alone insufficient estimate stresses in cyclones, wave-induced contribute at height measurements. In this study, near passage Tropical Cyclone Olwyn presented through...
Abstract Laboratory experiments were performed to investigate the effects of a coflowing current field on spectral shape water waves. The results indicate that refraction is main factor in modulating wave height and overall energy. Although structure varies considerably, some current-induced patterns spectrum are observed. In high frequencies, energy cascading generated by nonlinear interactions suppressed, development tail disturbed, as consequence detuning four-wave resonance conditions....
Understanding the dispersion of floating objects and ocean properties at surface is crucial for various applications, including oil spill management, debris tracking search rescue operations. While mesoscale turbulence has been recognized as a primary driver dispersion, role submesoscale processes poorly understood. This study investigates largely unexplored mechanism by refracted wave fields. In situ observations demonstrate significantly faster distinct patterns influenced wind, waves...
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 directions from optical images sequences in tanks.Optical are potentially suitable overcoming some the limitations faced by single-point sensors, like buoys, retrieving spatial properties wind-generated waves. However, most approaches that have been addressed literature employ complex configurations use a coupling system between cameras,...
A new methodology to estimate the period and direction of monochromatic surface gravity waves is presented based on processing a sequence images. The analysis focuses spatial-temporal variability brightness image plane. One camera only employed record water surface. main motive come up with simplified practical configuration which allows its operational implementation either laboratory or oil platforms top buildings. promising results correspond experiments in wave tank. technique has proven...
A new optical technique is presented and applied to measure regular, bichromatic surface waves propagating in different directions a tank. The method based on the patterns of spatio-temporal variations brightness over sequential frames. single camera employed, allowing simple straightforward configuration well-suited for operational applications, therefore avoiding technical complications typical stereoscopic measurements. initial results are promising, with propagation wave periods well...
Abstract A 30-year wave hindcast for the North Sea covering period of 1990–2020 is described. The simulations are performed by nesting a 5 km SWAN model to global WAVEWATCH III implementation. For coastal nest several options ST6 physics tested, including choices coefficients whitecapping dissipation, wind drag formulation and scaling speed U10 friction velocity u*. results shown two most widely used reanalyses: CFSR ERA5. dataset validated calibrated against satellite buoy measurements,...