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    Multibeam echosounder data near Qikiqtarjuaq were collected by the CCGS Amundsen in 2007 and by the RV Nuliajuk from 2012-2015. Data collected between 2007 and 2014 were processed by the Ocean Mapping Group at the University of New Brunswick (http://www.omg.unb.ca/) and were retrieved from their data sharing interface (http://www.omg.unb.ca/Projects/Arctic/SE_Baffin/). Data collected in 2015 were processed by the Fisheries and Marine Institute at Memorial University of Newfoundland (https://www.mi.mun.ca/) and were obtained directly from them. These datasets were clipped to only include the area near Qikiqtarjuaq relevant to the benthic habitat mapping project lead by the Memorial University Marine Habitat Mapping Group. Individual datasets were mosaicked to create single continuous bathymetry (m) and backscatter (dB) raster layers at 5 m resolution. Mapping activities were funded by ArcticNet and the Government of Nunavut, Department of Environment, Fisheries and Sealing Division to support benthic habitat mapping for marine ecosystem management in this area.

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    This data is currently in relation to twelve piston cores collected aboard CCGS Amundsen, one on cruise 2014805, two on cruise 2015805, six on cruise 2016804, and three on cruise 2017805. Information about these cores (Location, length, grain size, radiocarbon dates, etc.) can be found by searching the NRCan Expedition Database.

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    The cores were collected using a small gravity corer aboard the MV Nuliajuk in September 2014, and a piston corer aboard the CCGS Amundsen during October of 2014 and 2015. Initial data included records of sample location and core length. Laboratory work has produced lithological logs, photography and x-radiography, grains size analysis, and radiocarbon dates from the cores sampled in 2014. For the 2015 cores, lithological logs, photography and x-radiography have also been obtained, with grains size analysis and radiocarbon dating in progress.