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TitleROSE - Reflection Ocean Seismic Experiment
AuthorGreenan, B; Nedimovic, M; Louden, K; Mirshak, R; Ruddick, B; Shimeld, J
SourceCMOS Bulletin vol. 36, no. 2, 2008 p. 43-50
Alt SeriesEarth Sciences Sector, Contribution Series 20070547
File formatpdf
ProvinceEastern offshore region
AreaScotian Shelf
Lat/Long WENS-67.0000 -56.0000 43.0000 37.0000
Subjectsmarine geology; geophysics; seismic reflection surveys; seismic surveys, marine; seismic interpretations; water temperature; temperature; hydrography; salinity
Illustrationssketch maps
In the summer of 2007, the Government of Canada contracted a 6900 km multi-channel seismic (MCS) survey over the Sohm Abyssal Plain, south of Nova Scotia, with the intent to define Canadian jurisdiction of the seabed and its natural resources under Article 76 of the United Nations Convention on the Law of the Sea (UNCLOS). The survey lines crossed a major oceanographic boundary between the Gulf Stream and the slope waters. Capitalizing on this opportunity, the research vessel Endeavor was used to collect a hydrographic dataset coincident with a part of the UNCLOS MCS survey. We collected ~350 km of hydrographic data at high spatial density (500-1500 m) using shipboard XBTs and CTDs. The collected MCS and hydrographic data combined provide the basis for our Reflection Seismic Ocean Experiment – ROSE. This combined data set will allow quantitative analysis of water column reflections to produce reflectivity sections and carry out waveform modelling to study the spatial resolution limits of seismic oceanography. It will also enable us to ground-truth the MCS structures and improve our understanding of the linkages between the physical structures and the seismic reflections.