scholarly journals Modeling Acoustic Signal Fluctuations Induced by Sea Surface Roughness

2004 ◽  
Author(s):  
Robert M. Heitsenrether
Keyword(s):  
Surface Roughness ◽  
Acoustic Signal ◽  
Sea Surface ◽  
Sea Surface Roughness

scholarly journals A Novel Sea Surface Roughness Parameterization Based on Wave State and Sea Foam

2021 ◽  
Vol 9 (3) ◽  
pp. 246
Author(s):  
Difu Sun ◽  
Junqiang Song ◽  
Xiaoyong Li ◽  
Kaijun Ren ◽  
Hongze Leng
Keyword(s):  
Surface Roughness ◽  
Wind Speed ◽  
Drag Coefficient ◽  
Sea Surface ◽  
High Wind Speed ◽  
Wave State ◽  
Wind Speeds ◽  
Sea Surface Roughness ◽  
Extreme Wind ◽  
The Impact

A wave state related sea surface roughness parameterization scheme that takes into account the impact of sea foam is proposed in this study. Using eight observational datasets, the performances of two most widely used wave state related parameterizations are examined under various wave conditions. Based on the different performances of two wave state related parameterizations under different wave state, and by introducing the effect of sea foam, a new sea surface roughness parameterization suitable for low to extreme wind conditions is proposed. The behaviors of drag coefficient predicted by the proposed parameterization match the field and laboratory measurements well. It is shown that the drag coefficient increases with the increasing wind speed under low and moderate wind speed conditions, and then decreases with increasing wind speed, due to the effect of sea foam under high wind speed conditions. The maximum values of the drag coefficient are reached when the 10 m wind speeds are in the range of 30–35 m/s.

scholarly journals Impact of Sea Spray and Sea Surface Roughness on the Upper Ocean Response to Super Typhoon Haitang (2005)

2021 ◽  
Author(s):  
Lianxin Zhang ◽  
Xuefeng Zhang ◽  
William Perrie ◽  
Changlong Guan ◽  
Bo Dan ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Ocean Waves ◽  
Sea Surface ◽  
Sea Spray ◽  
Upper Ocean ◽  
Surface Cooling ◽  
Super Typhoon ◽  
Sea Surface Roughness ◽  
Momentum Fluxes ◽  
The Right

AbstractA coupled ocean-wave-sea spray model system is used to investigate the impacts of sea spray and sea surface roughness on the response of the upper ocean to the passage of the super typhoon Haitang. Sea spray mediated heat and momentum fluxes are derived from an improved version of Fairall’s heat fluxes formulation (Zhang et al., 2017) and Andreas’s sea spray-mediated momentum flux models. For winds ranging from low to extremely high speeds, a new parameterization scheme for the sea surface roughness is developed, in which the effects of wave state and sea spray are introduced. In this formulation, the drag coefficient has minimal values over the right quadrant of the typhoon track, along which the typhoon-generated waves are longer, smoother, and older, compared to other quadrants. Using traditional interfacial air-sea turbulent (sensible, latent, and momentum) fluxes, the sea surface cooling response to typhoon Haitang is overestimated by 1 °C, which can be compensated by the effects of sea spray and ocean waves on the right side of the storm. Inclusion of sea spray-mediated turbulent fluxes and sea surface roughness, modulated by ocean waves, gives enhanced cooling along the left edges of the cooling area by 0.2 °C, consistent with the upper ocean temperature observations.

Passive Microwave Measurements Of Sea Surface Roughness During The Saxon Experiment

2005 ◽  
Author(s):  
G.D. Sandlin ◽  
L.A. Rose ◽  
G.L. Geernaert ◽  
J.P. Hollinger ◽  
F.A. Hansen
Keyword(s):  
Surface Roughness ◽  
Passive Microwave ◽  
Sea Surface ◽  
Microwave Measurements ◽  
Sea Surface Roughness

scholarly journals Monitoring Intense Oceanic Fronts Using Sea Surface Roughness: Satellite, Airplane, and In Situ Comparison

2020 ◽  
Vol 125 (8) ◽  
Author(s):  
Nicolas Rascle ◽  
Bertrand Chapron ◽  
Jeroen Molemaker ◽  
Frédéric Nouguier ◽  
Francisco J. Ocampo‐Torres ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Sea Surface ◽  
Oceanic Fronts ◽  
Sea Surface Roughness

On Detection of a Wave Age Dependency for the Sea Surface Roughness

2004 ◽  
Vol 34 (6) ◽  
pp. 1441-1458 ◽  
Author(s):  
B. Lange ◽  
H. K. Johnson ◽  
S. Larsen ◽  
J. Højstrup ◽  
H. Kofoed-Hansen ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Sea Surface ◽  
Wave Age ◽  
Age Dependency ◽  
Sea Surface Roughness
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