PANGAEA_993543 Multibeam bathymetry raw data (Kongsberg EM712 entire dataset) of RV MARIA S. MERIAN during cruise MSM99 Schneider, Ralph R; Papenmeier, Svenja; Hinz, Anina-Kaja Multibeam bathymetry raw data (Kongsberg EM712 entire dataset) of RV MARIA S. MERIAN during cruise MSM99 2026-06-03 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993543 Investigator Ralph R Schneider ralph.schneider@ifg.uni-kiel.de Earth Science Event label Binary Object Binary Object (Media Type) Binary Object (File Size) Binary Object (MD5 Hash) Kongsberg datagram raw file name File content Data file recording duration Data file recording distance Ship speed Number of pings Start of data file recording, date/time Start of data file recording, latitude Start of data file recording, longitude Start of data file, heading Start of data file, depth Stop of data file recording, date/time Stop of data file recording, latitude Stop of data file recording, longitude Stop of data file, heading Stop of data file, depth DATE/TIME LATITUDE LONGITUDE ELEVATION Comment geoscientificInformation Bathymetry EM712 multibeam echosounder MSM99 MSM99_0_Underway-4 Multibeam Echosounder Extracted from file Extracted with MB-System Maria S. Merian 2021-02-26 2021-03-19 Complete 54.85680895 62.85372115 13.4902133 21.1368589 -255.5707 m a.s.l. (ELEVATION) -33.415 m a.s.l. (ELEVATION) DAM_Underway DAM Underway Research Data unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 4230 data points text/tab-separated-values Schneider, Ralph R; Brembach, Kerstin; Ebert, Jasmin; Heene, Toralf; Hentzsch, Barbara; Hinz, Anina-Kaja; Kolling, Henriette Marie; Krzynowek, Zuzanna; Mohrholz, Volker; Moros, Matthias; Neumann, Thomas; Papenmeier, Svenja; Plewe, Sascha; Reuter, Runa T; Schuffenhauer, Ingo; Strehlau, Ronja; Sulaiman, Hanif; Swieton, Jacub (2021): Baltic Sea Deep-Water Ventilation, Cruise No. MSM99, February 25, 2021 - March 23, 2021, Emden (Germany) - Emden (Germany). MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe, MSM99, 51 pp, https://doi.org/10.48433/cr_msm99

Multibeam bathymetry raw data using the ship's own Kongsberg EM 712 multibeam echosounder was not continuously recorded during RV MARIA S. MERIAN cruise MSM99. Data was recorded on 16 days between 2021-02-26 and 2021-03-19. This dataset contains 13x survey lines (occasionally with some line crossing perpendicular to the track) in the Baltic Sea and Gulf of Bothnia. The approximate average depth of the entire dataset is around 150m, ranging from 280m to 22m. No ancillary sound velocity profiles (SVP) files from the cruise are added to this dataset. Data analysis of the multibeam raw data revealed that SVP has been changed several 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 good since the gridded hillshade data showed relatively few obstacles. Data can be processed e.g. with the open source software package MB-System (Caress et al. 2024, https://doi.org/10.5281/zenodo.6302801). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993543"! ** These data should not be used for navigational purposes. Data publishing was realized by Daniel Damaske, MARUM - Center for Marine Environmental Sciences (University of Bremen).

http://en.wikipedia.org/wiki/Elevation ELEVATION http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_6709 Start of data file recording, latitude http://en.wikipedia.org/wiki/ISO_6709 Start of data file recording, longitude http://en.wikipedia.org/wiki/ISO_6709 Stop of data file recording, latitude http://en.wikipedia.org/wiki/ISO_6709 Stop of data file recording, longitude http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://doi.org/10.48433/cr_msm99 Baltic Sea Deep-Water Ventilation, Cruise No. MSM99, February 25, 2021 - March 23, 2021, Emden (Germany) - Emden (Germany) https://doi.org/10.5281/zenodo.6302801 Extracted with MB-System https://en.m.wikipedia.org/wiki/Heading_(navigation) Start of data file, heading https://en.m.wikipedia.org/wiki/Heading_(navigation) Stop of data file, heading https://en.wikipedia.org/wiki/ISO_8601 Start of data file recording, date/time https://en.wikipedia.org/wiki/ISO_8601 Stop of data file recording, date/time https://en.wikipedia.org/wiki/RV_Maria_S._Merian Maria S. Merian https://hdl.handle.net/10013/epic.37979 Kongsberg datagram raw file name https://www.allianz-meeresforschung.de/kernbereiche/datenmanagement-und-digitalisierung#unterwegs DAM_Underway DIF 9.4 2026-06-03 2026-06-03