M84/4 raw data of EM122 multibeam echosounder (bathymetry & beam time series) ...

• Main Authors: Hanebuth, Till J J, Schwenk, Tilmann
• Format: Dataset
• Language: English
• Published: PANGAEA 2019
• Subjects: Bathymetry; EM122; Galician Shelf; hydroacoustics; Northeast Atlantic; seismics; File name; File format; File size; Uniform resource locator/link to file; Underway cruise track measurements; M84/4; Meteor 1986; Center for Marine Environmental Sciences MARUM; Kongsberg
• Online Access: https://dx.doi.org/10.1594/pangaea.905553; https://doi.pangaea.de/10.1594/PANGAEA.905553

Bathymetry data was acquired during R/V METEOR cruise M84/4 at the Galician Shelf off Northwest Spain in the Northeast Atlantic between 01.05.2011 and 28.05.2011. The main objectives of the cruise were the investigation of sediment transport processes from shallow to deep waters, understanding sediment dynamics, analysis of material downslope processes and the reconstruction of modern and past environmental conditions. The cruise comprised seismic, sedimentological, magnetic, geochemical and palaeoceanographic methods. Extensive bathymetric mapping during M84/4 based on the multibeam echosounders (MBES) KONGSBERG EM710 and EM122 provided the basis for sediment coring and additional investigations. Hydroacoustic data revealed the diverse morphology in the study area, driven by both sedimentary and tectonic processes, including contouritic deposits, slope gullies, canyon/channel systems, ridges and seamounts. The sub-bottom profiler PARASOUND, multichannel seismics, ADCP, several coring devices and the ...