A5041921382- Ocean Waves and Remote Sensing
- Coastal and Marine Dynamics
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Botany, Ecology, and Taxonomy Studies
- Botany and Plant Ecology Studies
- Meteorological Phenomena and Simulations
- Flood Risk Assessment and Management
- Coastal wetland ecosystem dynamics
- Hydrology and Sediment Transport Processes
- Seismic Waves and Analysis
- Aeolian processes and effects
- Plant and animal studies
- Geological formations and processes
- Underwater Acoustics Research
- Soil erosion and sediment transport
- Geology and Paleoclimatology Research
- Wave and Wind Energy Systems
- Underwater Vehicles and Communication Systems
- Fern and Epiphyte Biology
- Geophysics and Gravity Measurements
- Fluid Dynamics and Heat Transfer
- Earthquake and Tsunami Effects
- Inorganic Fluorides and Related Compounds
- Reservoir Engineering and Simulation Methods
U.S. Army Engineer Research and Development Center
2023
Bryant University
2023
Technical University of Darmstadt
2009-2021
United States Army Corps of Engineers
2018-2020
NOAA National Centers for Environmental Prediction
2020
NOAA Environmental Modeling Center
2020
National Oceanic and Atmospheric Administration
2020
Bundesamt für Wasserwirtschaft
2009
Harvard University
1938
Acadia University
1938
We present a new modeling system for wave‐current interaction based on unstructured grids and thus suitable very large‐scale high‐resolution multiscale studies. The coupling between the 3D current model (SELFE) 3rd generation spectral wave (WWM‐II) is done at source code level two models share same sub‐domains in parallel MPI implementation order to ensure efficiency avoid interpolation. demonstrate accuracy, efficiency, stability robustness of coupled SELFE‐WWM‐II with suite progressively...
The surface current response to winds is analyzed in a two-year time series of 12 MHz (HF) Wellen Radar (WERA) off the West coast France. measured currents, with tides filtered out, are order 1.0 1.8% wind speed, direction 10 40 degrees right wind. This Lagrangian can be decomposed as vector sum quasi-Eulerian U_E, representative top 1 m water column, and part wave-induced Stokes drift Uss at sea surface. Here estimated an accurate numerical wave model, thanks novel parameterization...
Abstract Currents effects on waves have led to many developments in numerical wave modeling over the past two decades, from choices parameterizations. The performance of models conditions with strong currents is reviewed here, and observed opposed modulations heights by tidal several typical situations are interpreted. For current variations small scales, rapid steepening enhances breaking. Using different parameterizations a dissipation rate proportional some measure steepness fourth power,...
Wave‐current interactions play a major role in the dynamics of shallow tidal inlets. This study investigates these at natural inlet, with strong focus on current‐induced changes wave propagation. The analysis hydrodynamic data collected Albufeira lagoon, Portugal, revealed spatiotemporal variations water levels and heights along attributed to wave‐current interaction processes. We compared simulations coupled wave‐circulation modeling system, computed without waves, propagated current...
WAVEWATCH III has been equipped with a new parallelization algorithm, domain decomposition and an optional implicit numerical scheme for coastal application at high spatial resolution triangular unstructured grids, compatible community-based coupling infrastructure. We performed validation study Hurricane Ike (2008) to prove the accuracy of updated model against satellite altimeter data buoy observations on various forced by two sophisticated atmospheric models hurricane simulation, using...
Coastal reflection is introduced in a phase‐averaged numerical wave model, first with constant coefficient, and then coefficient defined from the shoreface slope that depends on incident height mean frequency. This parameterization used both regular unstructured grids. The calibration involves site‐specific associated local geomorphology of shoreline. Using buoy data off Hawaii U.S. West Coast, it found coastal necessary to reproduce observed directional properties sea states. Errors spread...
A tide-surge-wave modelling system, called Kassandra, was developed for the Mediterranean Sea. It consists of a 3-D finite element hydrodynamic model (SHYFEM), including tidal and third generation spectral wave (WWMII) coupled to model. The numerical grid models covers whole with variable resolution. comparison coastal tide gauge stations along Italian peninsula results in root sum square error main components equal 1.44 cm. operational implementation Kassandra storm surge system through use...
A Gulf of Mexico performance evaluation and comparison coastal circulation wave models was executed through harmonic analyses tidal simulations, hindcasts Hurricane Ike (2008) Rita (2005), a benchmarking study.Three unstructured (ADCIRC, FVCOM, SELFE) validated with similar skill on new common scale mesh (ULLR) identical frictional parameterization forcing for the validation hurricane hindcasts.Coupled models, SWANþADCIRC WWMIIþSELFE, along FVCOM loosely coupled SWAN, also skill.NOAA's...
Abstract Various uncertainties exist in a hindcast due to the inabilities of numerical models resolve all complicated atmosphere-sea interactions, and lack certain ground truth observations. Here, comprehensive analysis an atmospheric model performance mode (Hurricane Weather Research Forecasting model—HWRF) its 40 ensembles during severe events is conducted, evaluating accuracy uncertainty for hurricane track parameters, wind speed collected along satellite altimeter tracks at stationary...
Accurate information on waves and storm surges is essential to understand coastal hazards that are expected increase in view of global warming rising sea levels. Despite the recent advancement development application large-scale models, nearshore processes still not sufficiently resolved due coarse resolutions, transferring errors risk assessments other applications. Here we developed a 73-year hindcast an unstructured mesh >650,000 nodes with unprecedented resolution 2-4 km at coast....
Abstract. Wind-wave forecasts play a crucial role in the North American Great Lakes region towards ensuring safety of communities, enhancement economy, and protection property. Modeling wind waves closed relatively shallow basins with complex bathymetry like is challenge that successfully tackled part by using variable-resolution triangular unstructured meshes no limits terms computational scalability maximum resolution coastal areas. In this paper, we discuss recent advances developing mesh...
Abstract. Climate change is driving sea-level rise and potentially intensifying extreme events in the tropical belt, thereby increasing coastal hazards. On islands, sea levels subsequent marine flooding can be triggered by cyclones but also distant-source swells. Knowledge of states ocean thus key importance, their study usually based on spectral wave models. However, existing global models typically employ regular grids with a coarse resolution, which fail to accurately represent volcanic...
Abstract. This paper presents modelling the wave conditions in Typhoon Krosa prior to touching Taiwan October 2007, with third-generation models of SWAN and WWM. The accuracy extreme measurement Hmax = 32 m significant height Hs ≈ 24 at depth h 38 is discussed first. It concluded that does not appear faulty physically realistic. numerical results are then analysed order examine models' capability reproduce observed conditions. found neither nor WWMII able hindcast measurement. Series...
Accurate modeling of wind-generated ocean waves is critical for understanding coastal processes, maritime operations, and management. Recent advances in global wave forecasting have substantially improved large-scale predictions; however, bridging the gap between coarse-scale solutions finer-resolution requirements nearshore environments remains an ongoing challenge. In this study, we present our latest developments numerically downscaling wind-wave fields using WAVEWATCH III (WW3) framework...