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dc.contributor.authorSchimel, Alexandre Carmelo Gregory
dc.contributor.authorHealy, Terry R.
dc.contributor.authorMcComb, Peter
dc.contributor.authorImmenga, Dirk
dc.date.accessioned2010-08-12T23:17:36Z
dc.date.available2010-08-12T23:17:36Z
dc.date.issued2010
dc.identifier.citationSchimel, A.C.G., Healy, T.R., McComb, P., Immenga, D. (2010). Comparison of a Self-Processed EM3000 Multibeam Echosounder Dataset with a QTC View Habitat Mapping and a Sidescan Sonar Imagery, Tamaki Strait, New Zealand. Journal of Coastal Research, 26(4), 714-725.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/4332
dc.description.abstractA methodology for automatically processing the data files from an EM3000 multibeam echosounder (Kongsberg Maritime, 300 kHz) is presented. Written in MatLab, it includes data extraction, bathymetry processing, computation of seafloor local slope, and a simple correction of the backscatter along-track banding effect. The success of the latter is dependent on operational restrictions, which are also detailed. This processing is applied to a dataset acquired in 2007 in the Tamaki Strait, New Zealand. The resulting maps are compared with a habitat classification obtained with the acoustic ground-discrimination software QTC View linked to a 200-kHz single-beam echosounder and to the imagery from a 100-kHz sidescan sonar survey, both performed in 2002. The multibeam backscatter map was found to be very similar to the sidescan imagery, quite correlated to the QTC View map on one site but mainly uncorrelated on another site. Hypotheses to explain these results are formulated and discussed. The maps and the comparison to prior surveys are used to draw conclusions on the quality of the code for further research on multibeam benthic habitat mapping.en_NZ
dc.language.isoen
dc.publisherCoastal Education & Research Foundationen_NZ
dc.relation.urihttp://www.jcronline.org/doi/abs/10.2112/08-1132.1en_NZ
dc.subjectreflectivityen_NZ
dc.subjectbackscatteren_NZ
dc.subjectseafloor slopeen_NZ
dc.subjectXTFen_NZ
dc.subjectTe Matuku marine reserveen_NZ
dc.titleComparison of a Self-Processed EM3000 Multibeam Echosounder Dataset with a QTC View Habitat Mapping and a Sidescan Sonar Imagery, Tamaki Strait, New Zealanden_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.2112/08-1132.1en_NZ
dc.relation.isPartOfJournal of Coastal Researchen_NZ
pubs.begin-page714en_NZ
pubs.elements-id35222
pubs.end-page725en_NZ
pubs.issue4en_NZ
pubs.volume26en_NZ


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