Effect of a roughened sea surface on shallow water propagation with emphasis on reactive intensity obtained with a vector sensor

2014 ◽  
Vol 136 (4) ◽  
pp. 2227-2227
Author(s):  
David R. Dall'Osto ◽  
Peter H. Dahl
Keyword(s):  
Shallow Water ◽  
Sea Surface ◽  
Vector Sensor

Localization for broadband source by a single vector sensor in shallow water

2015 ◽  
Vol 137 (4) ◽  
pp. 2241-2242
Author(s):  
Junjie Shi ◽  
Dajun Sun ◽  
Yunfei Lv ◽  
Yun Yu
Keyword(s):  
Shallow Water ◽  
Vector Sensor

scholarly journals Global distribution of modern shallow-water marine carbonate factories: a spatial model based on environmental parameters

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Marie Laugié ◽  
Julien Michel ◽  
Alexandre Pohl ◽  
Emmanuelle Poli ◽  
Jean Borgomano
Keyword(s):  
Spatial Analysis ◽  
Shallow Water ◽  
Spatial Model ◽  
General Circulation ◽  
Carbonate Reservoir ◽  
Global Distribution ◽  
Sea Surface ◽  
Modeling Framework ◽  
Model Based ◽  
Marine Carbonates

Abstract Prediction of carbonate distributions at a global scale through geological time represents a challenging scientific issue, which is critical for carbonate reservoir studies and the understanding of past and future climate changes. Such prediction is even more challenging because no numerical spatial model allows for the prediction of shallow-water marine carbonates in the Modern. This study proposes to fill this gap by providing for the first time a global quantitative model based on the identification of carbonate factories and associated environmental affinities. The relationships among the four carbonate factories, i.e., “biochemical”, “photozoan-T”, “photo-C” and “heterozoan-C” factories, and sea-surface oceanographic parameters (i.e., temperature, salinity and marine primary productivity) is first studied using spatial analysis. The sea-surface temperature seasonality is shown to be the dominant steering parameter discriminating the carbonate factories. Then, spatial analysis is used to calibrate different carbonate factory functions that predict oceanic zones favorable to specific carbonate factories. Our model allows the mapping of the global distribution of modern carbonate factories with an 82% accuracy. This modeling framework represents a powerful tool that can be adapted and coupled to general circulation models to predict the spatial distribution of past and future shallow-water marine carbonates.

scholarly journals USE OF MIXING TUBES ON MARINE OUTFALLS

1972 ◽  
Vol 1 (13) ◽  
pp. 120
Author(s):  
Richard Silvester ◽  
Mana Patarapanich
Keyword(s):  
Shallow Water ◽  
Ambient Medium ◽  
Water Jet ◽  
Sea Surface ◽  
Submerged Condition ◽  
Jet Pumps ◽  
Surface Mixing

To optimise dispersion from marine outfalls multiport diffusers have been developed. The addition of mixing tubes to such outlets can create an ejector action and so cause pre-mixing before discharge to the receiving mass of water. The characteristics of such water jet-pumps in this submerged condition have been derived elsewhere, but are applied herein to the dilution of effluents. For a range of jet to mixing tube area ratios optimisation has been carried out on a computer, thus indicating the densimetric Froude numbers and depth ratios at which dilution exceeds that for the plain jet. Even for a stagnant ambient medium dilution in experiments exceeds that predicted, possibly because of macro-turbulence not accounted for in the theory available. Turbulons developed in a mixing tube are larger than any emerging from a plain smaller jet and may thus promote better mixing from its exit to the sea surface. Mixing tubes have obvious applications in shallow water and where an effluent is particularly obnoxious.

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