Multibeam bathymetry processed data (Kongsberg EM 122 dataset compilation) RV MARIA S. MERIAN during cruise MSM84 & MSM45, Labrador Sea

DOI

Bathymetry from multibeam echo sounding data from three glacial cross-shelf troughs of the Labrador Shelf, namely the Okak, Makkovik and Cartwright troughs, are presented. The data were collected onboard the Maria S. Merian during cruises MSM45 and MSM84 using a Kongsberg EM122. The EM122 was operated in dual swath mode at 12 kHz frequency with a 1°×1° beam width. All raw multibeam data collected on MSM84 can be accessed here: (https://doi.org/10.1594/PANGAEA.916191). Data post-processing included manually error cleaning and depth correction using sound-velocity profiles with Fledermaus (MSM45) and Caris HIPS and SIPS (MSM84). The available datasets from both expeditions were merged and gridded with a cell size of 25 m using the Generic Mapping Tools (GMT) data processing and display software package (GMT version 6.1.1). Horizontal datum is WGS84. EPSG code is 4326. The objective of compiling the bathymetry data from the Labrador Shelf is to map glacial landforms and reconstruct the dynamics of the Laurentide Ice Sheet in detail.

These data should not be used for navigational purposes.Ship time for the cruise MSM84 was funded by the DFG under the award MerMet 17-49, Gebhardt, LABRADOR-GLACIALS.

Identifier
DOI https://doi.org/10.1594/PANGAEA.964710
Related Identifier References https://doi.org/10.1016/j.margeo.2024.107249
Related Identifier IsDerivedFrom https://doi.org/10.1594/PANGAEA.916191
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.964710
Provenance
Creator Lenz, Kai-Frederik ORCID logo; Gebhardt, Andrea Catalina ORCID logo; Couette, Pierre-Olivier; Schneider, Ralph R ORCID logo; Gross, Felix (ORCID: 0000-0002-0749-829X)
Publisher PANGAEA
Publication Year 2024
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 447580143 https://gepris.dfg.de/gepris/projekt/447580143 Glacial dynamics of the Laurentide Ice Sheet along a terrestrial-to-marine transect in East Canada (labsCAUs)
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 42 data points
Discipline Earth System Research
Spatial Coverage (-55.969W, 44.859S, -52.380E, 63.944N)
Temporal Coverage Begin 2015-08-02T13:30:00Z
Temporal Coverage End 2019-07-17T08:20:05Z