Gridded bathymetry from EM710 multibeam echosounder of RV HEINCKE cruise HE387 (Svalbard continental margin) ...

• Main Authors: dos Santos Ferreira, Christian, Wintersteller, Paul, Schmager, Marten
• Format: Dataset
• Language: English
• Published: PANGAEA 2019
• Subjects: Arctic; Bathymetry; EM710; hydroacoustics; ROV; Svalbard; File name; File format; File size; Uniform resource locator/link to file; Underway cruise track measurements; HE387; Heincke; Center for Marine Environmental Sciences MARUM
• Online Access: https://dx.doi.org/10.1594/pangaea.905599; https://doi.pangaea.de/10.1594/PANGAEA.905599

Between 20.08.2012 and 16.09.2012, bathymetric data was acquired in the Arctic west of Svalbard during the cruise HE387 on board R/V HEINCKE, which was aimed at the investigation of gas emissions at the Svalbard continental margin. The main objectives of the cruise were the quantification of the amount of methane that is released as gas bubbles from the seafloor, mapping the distribution of gas emissions and identifying the source of the gas. By utilizing the multibeam echosounder (MBES) KONGSBERG EM710, a bathymetric map of the working area was conducted and water column data was examined for the detection of gas emission sites, providing the basis for their correlation with seafloor morphologies. Furthermore, additional echosounders (SES2000 & EK60) collected subbottom and water column information. Direct, visual and acoustic measurements on the seafloor were conducted through the remotely operated vehicle (ROV) Cherokee (MARUM) to locate and quantify individual gas emission sites and estimate their ...