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Acoustic monitoring of gas emissions from the seafloor. Part I: quantifying the volumetric flow of bubbles ArchiMer
Leblond, Isabelle; Scalabrin, Carla; Berger, Laurent.
Three decades of continuous ocean exploration have led us to identify subsurface fluid related processes as a key phenomenon in marine earth science research. The number of seep areas located on the seafloor has been constantly increasing with the use of multi-scale imagery techniques. Due to recent advances in transducer technology and computer processing, multibeam echosounders are now commonly used to detect submarine gas seeps escaping from the seafloor into the water column. A growing number of en-route surveys shows that sites of gas emissions escaping from the seafloor are much more numerous than previously thought. Estimating the temporal variability of the gas flow rate and volumes escaping from the seafloor has thus become a challenge of relevant...
Tipo: Text Palavras-chave: Seafloor observatory; Water column acoustics; Forward and inverse modeling; Fisheries echosounders; Acoustic backscattering; Gas emissions; Bubbles; Water tank experiments.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00192/30336/29094.pdf
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