Wefer, Gerold; Laser, Bernd; Schmidt, Andrea; Schmieder, Frank (2023): Multibeam bathymetry raw data (Atlas Hydrosweep DS 2 echo sounder entire dataset) of RV METEOR during cruise M34/3 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943142
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Abstract:
Multibeam bathymetry raw data using the ship's own Atlas Hydrographic Hydrosweep DS 2 multibeam echo sounder was alomst continuously recorded during RV METEOR cruise M34/3. Data was recorded on 18 days between 1996-02-22 and 1996-03-15. This dataset contains a survey in the South Atlantic Ocean. The approximate average depth of the entire dataset is around 4500m.
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. Data analysis of the multibeam raw data revealed that SVP has not been changed 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, D. W., and D. N. Chayes, MB-System: Mapping the Seafloor, http://www.mbari.org/products/research-software/mb-system/, 2023).
Related to:
Wefer, Gerold; Bleil, Ulrich; Schulz, Horst D; Fischer, Gerhard (1997): Geo Bremen South Atlantic 1996 - Cruise No. M34 - January 3 - April 15, 1996 - Capetown (South Africa) - Bridgetown (Barbados). METEOR-Berichte, DFG-Senatskommission für Ozeanographie, M34, 550 pp, https://doi.org/10.2312/cr_m34
Project(s):
DAM Underway Research Data (DAM_Underway)
Coverage:
Median Latitude: -27.714607 * Median Longitude: -19.952657 * South-bound Latitude: -34.191683 * West-bound Longitude: -40.376250 * North-bound Latitude: -15.731700 * East-bound Longitude: 12.249817
Date/Time Start: 1996-02-22T05:42:50 * Date/Time End: 1996-03-15T12:00:13
Minimum ELEVATION: -9171.8379 m a.s.l. * Maximum ELEVATION: -926.7809 m a.s.l.
Event(s):
M34/3_0_Underway-1 * Latitude Start: -23.241000 * Longitude Start: 12.249800 * Latitude End: -15.560000 * Longitude End: -34.992000 * Date/Time Start: 1996-02-22T05:42:50 * Date/Time End: 1996-03-15T13:51:56 * Campaign: M34/3 * Basis: Meteor (1986) * Method/Device: Swath-mapping system Atlas Hydrosweep DS-2 * Comment: Event shows start/end point (date/time & coordinates) of first/last data record using Atlas Hydrographic Hydrosweep DS 2 multibeam echo sounder during cruise M34/3
Comment:
These data should not be used for navigational purposes.
Data publishing was realized by Daniel Damaske, MARUM - Center for Marine Environmental Sciences (University Bremen).
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 1 (ProcLevel1)
Size:
1158 data points