Search results for " sub-bottom profiler"

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Detection and mapping of Posidonia oceanica dead matte by high-resolution acoustic imaging

2009

A high-resolution echosounder was used to acquire seismo-acoustic records of P. oceanica dead matte patches in the Gulf of Palermo. Seismo-acoustic profiling enabled detection of dead matte structures that are invisible to visual inspection, being hidden by variable layers of sandy sediment. The thickness of the dead matte measured reaches a maximum of 2.2 m. The mean volume of the matte per unit area of seabed surface (MEIx) varies from 0.2 to 2.2 m 3 /m 2 , with an average value of 1.6 m 3 /m 2 and a total volume estimated at 73,000 m 3 . From literature data and from the volume of dead matte calculated in the present work we estimated that total carbon accumulated in the matte is about 2…

Settore BIO/07 - EcologiaAtmospheric SciencebiologyApplied MathematicsMineralogyHigh resolutionbiology.organism_classificationGeographyEcho soundingPosidonia oceanica dead matte sub-bottom profiler remote sensing carbon sinkPosidonia oceanicaComputers in Earth SciencesSeabedOptoacoustic imagingGeneral Environmental ScienceItalian Journal of Remote Sensing

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PEPhysical Sciences and Engineering
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