Multibeam bathymetry raw data (EM 120 echosounder entire dataset) of RV SONNE during cruise SO236

DOI

Multibeam bathymetry raw data using the ship's own Kongsberg (Simrad) EM 120 multibeam echosounder was almost continuously recorded during RV SONNE cruise SO236. Data was recorded on 20 days between 2014-08-09 and 2014-08-29. This dataset contains various surveys at the Maldives islands. The approximate average depth of the entire dataset is around 1400m.The data are archived at the Federal Maritime and Hydrographic Agency of Germany (Bundesamt für Seeschifffahrt und Hydrographie, BSH) and provided to PANGAEA database for data curation and publication. No ancillary sound velocity profiles (SVP) files from the cruise are archived at the BSH, thus no SVP files are added to this dataset. However, data analysis of the multibeam raw data revealed that SVP has been changed a few times during the survey.This publication is conducted within the efforts of the German Marine Research Alliance in the core area "Data management and Digitalization" (Deutsche Allianz Meeresforschung, DAM).Data are unprocessed and therefore contains incorrect depth measurements (artifacts) without further processing. Note that refraction errors can be expected due to the lack of proper SVP. Overall, it appears that the data quality is rather moderate since the gridded hillshade data showed some obstacles. During the cruise the multibeam system was considered not working properly (SO236 was the last scientific voyage of RV SONNE). Data can be processed e.g. with the open source software package MB-System (Caress, D. W., and D. N. Chayes, MB-System: Mapping the Seafloor, http://www.mbari.org/products/research-software/mb-system/, 2022).

These data should not be used for navigational purposes.Data publishing was realized by Daniel Damaske, MARUM - Center for Marine Environmental Sciences (University Bremen).

Identifier
DOI https://doi.org/10.1594/PANGAEA.942464
Related Identifier https://doi.org/10.2312/cr_so236
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.942464
Provenance
Creator Betzler, Christian ORCID logo; Lindhorst, Sebastian; Wunsch, Marco
Publisher PANGAEA
Publication Year 2022
Funding Reference Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03G0236A https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03G0236A SO 236 - MALSTROM: Malediven Karbonatstratigraphie und IODP Pre-Site Survey
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 11968 data points
Discipline Earth System Research
Spatial Coverage (72.792W, 3.121S, 74.970E, 5.537N)
Temporal Coverage Begin 2014-08-09T04:42:48Z
Temporal Coverage End 2014-08-27T14:42:16Z