Search
Now showing items 1-8 of 8
Global Estimates of Extreme Wind Speed and Wave Height
Publisher: American Meteorological Society
Abstract: A long-term dataset of satellite altimeter measurements of significant wave height and wind speed, spanning 23 years, is analyzed to determine extreme values corresponding to a 100-yr return period. The analysis considers ...
Joint Calibration of Multiplatform Altimeter Measurements of Wind Speed and Wave Height over the Past 20 Years
Publisher: American Meteorological Society
Abstract: Since 1985, for a period of more than 23 yr, seven altimeter missions have provided global coverage of significant wave height and wind speed. This study undertakes a long-term analysis of the accuracy and stability of ...
Computations of the Response of a Wave Spectrum to a Sudden Change in Wind Direction
Publisher: American Meteorological Society
Abstract: The response of a wind-sea spectrum to a step function change in wind direction is investigated theoretically for a sequence of direction changes ranging from 30° to 180°, in increments of 30°. Two spectral energy balance ...
The Decay Rate of Ocean Swell Observed by Altimeter
Publisher: American Meteorological Society
Abstract: ltimeter data from transects across the Southern Ocean are analyzed to determine the decay of oceanic swell. The resulting decay rate is shown to be proportional to wavenumber squared and swell amplitude cubed. Such a decay ...
Numerical Investigation of Spectral Evolution of Wind Waves. Part I: Wind-Input Source Function
Publisher: American Meteorological Society
Abstract: This paper is dedicated to the investigation and calibration of the parameterized form for the wind-input source term Sin proposed earlier on the basis of field observations at Lake George, Australia. The main objective ...
Numerical Investigation of Spectral Evolution of Wind Waves. Part II: Dissipation Term and Evolution Tests
Publisher: American Meteorological Society
Abstract: Numerical simulations of the wind-wave spectrum evolution are conducted by means of new observation-based wind-input and wave dissipation functions obtained in the Lake George field experiment. This experiment allowed ...
Influence of Wind Forcing on Modulation and Breaking of One-Dimensional Deep-Water Wave Groups
Publisher: American Meteorological Society
Abstract: volution of nonlinear wave groups to breaking under wind forcing was studied by means of a fully nonlinear numerical model and in a laboratory experiment. Dependence of distance to breaking and modulation depth (height ...
Modulational Instabilities and Breaking Strength for Deep-Water Wave Groups
Publisher: American Meteorological Society
Abstract: Progression of nonlinear wave groups to breaking was studied numerically and experimentally. Evolution of such wave group parameters as a function of distance to breaking and modulation depth?the height ratio of the highest ...