Tang, Qinqin; Krastel, Sebastian (2022): Multibeam bathymetry processed data (EM 120 echosounder & Kongsberg EM 122 dataset compilation) of RV MARIA S. MERIAN during cruise MSM11/2, MSM82/2 & MSM87, North Atlantic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943632, In: Tang, Q; Krastel, S (2022): Multibeam, echosounder and gravity cores data of the headwall area in the Sahara Slide Complex [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.943644
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Abstract:
The bulk of multibeam bathymetric data were acquired during RV Maria S. Merian cruises MSM11/2 (Bickert et al., 2009), MSM82/2 (Krastel et al., 2019a) and MSM87 (Krastel et al., 2019b) with hull-mounted Kongsberg Simrad systems EM120 (MSM11/2) and EM122 (MSM82/2 and MSM87). The nominal sonar frequency is 12 kHz. The angular coverage is up to 150°, and each angular beam accuracy was 2° by 2°. Kongsberg Seapath system provides the combined motion, position and time data, which are transmitted to the Processing Unit (PU) of the multibeam echosounder to achieve real-time motion compensation in pitch, roll and yaw. All raw data were processed with MB-System software (Caress and Chayes, 2017: https://www.mbari.org/products/research-software/mb-system/). Sound velocities were measured with a Conductivity, Temperature, Depth (CTD) probe during MSM 82/2 and an expendable sound velocimeter during MSM87. The multibeam data in cruise MSM82/2 were collected from the 11th to 13th of May in 2019 in the headwall area of the Sahara Slide Complex. Only two sound velocities were measured on the 11th and 12th of May, and we applied the measured sound velocities to data from these two days. In the mean time, the measured sound velocity on 12th of May was also applied to data collected on 13th of May. For MSM11/2, sound velocities were adjusted using the mbvelocity tool implemented in the MB-System software. The multibeam bathymetric data were gridded by using the splines with tension algorithm to a final grid with 150 m cell spacing in lateral direction.
Related to:
Bickert, Torsten; Braun, Stefan; Fricke, Sascha; Hermann, Bernd; Just, Janna; Keil, Hanno; Klann, Marco; Krastel, Sebastian; Kurschat, Stephanie; Mai, Anh Hoang; Meyer, Matthias; Mollenhauer, Gesine; Nowald, Nicolas; Ruhland, Götz; Schilling, Stephen; Schwab, Arne; Schwenk, Tilmann; Stuut, Jan-Berend W; Vega, Daura (2011): Pre-Site Survey for an IODP cruise Neogene Paleoclimate and sediment transport at the continental margin of NW Africa - Cruise No. MSM11/2 - March 14 - April 09, 2009 - Dakar (Senegal) - Las Palmas (Canary Islands, Spain). MARIA S. MERIAN-Berichte, DFG-Senatskommission für Ozeanographie, MSM11/2, 53 pp, https://doi.org/10.2312/cr_msm11_2
Caress, David W; Chayes, D N (2017): MB-System: Mapping the Seafloor. https://www.mbari.org/technology/mb-system/
Krastel, Sebastian; Barrett, Rachel; Gross, Felix; Gross, Nikolai; Jähmlich, Heiko; Heinrich, Sven; Held, Philipp; König, Christoph; Lebas, Elodie; Lenz, Kai-Frederik; Schneider, Ralph R; Schneider von Deimling, Jens; Wilckens, Henriette (2019): Seismic pre-site survey for an IODP site on the Cape Verde Plateau, Cruise No. MSM87, 16.11.19 - 25.11.19, Las Palmas (Spain) - Mindelo (Cape Verde). MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe, MSM87, 26 pp, https://doi.org/10.2312/cr_msm87
Krastel, Sebastian; Kinne, Stefan; Nitsche, Frank; Ahlers, Johanna; Bischof, Simone; Bodenschatz, Eberhard; Cremanns, Maximilian; Düring, Annelie; Höhne, Philipp; Jeuck, Alexandra; Lenz, Kai-Frederik; Meyer, Marcel; Pereyra, Noelia; Rachid, Jihad; Schiwitza, Sabine; Schlenczek, Oliver; Schopenhauer, Mila; Schröder, Marcel; Stevens, Bjorn; Tewes, Simon; Vietheer, Christian; Wagner, Thomas (2019): Morphology of the headwall area of the Sahara slide, NW-Africa, Measuring Over Ocean References, Mapping sequences to protists morphospecies from the Atlantic, Cruise No. MSM82/2, 26.04.19 - 14.05.19, Montevideo (Uruguay) - Las Palmas (Spain). MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe, MSM82_2, 44 pp, https://doi.org/10.2312/cr_msm82_2
Coverage:
Median Latitude: 24.134614 * Median Longitude: -17.835498 * South-bound Latitude: 17.599600 * West-bound Longitude: -23.292000 * North-bound Latitude: 26.506900 * East-bound Longitude: -15.802000
Date/Time Start: 2009-03-14T00:00:00 * Date/Time End: 2019-11-24T19:05:09
Minimum Elevation: -3483.0 m * Maximum Elevation: -1490.0 m
Event(s):
Bathymetry_Sahara_Slide_Complex * Latitude: 24.759747 * Longitude: -17.445402 * Date/Time Start: 2009-03-14T00:00:00 * Date/Time End: 2019-05-14T00:00:00 * Comment: Event coordinates refer to the center location of the compiled bathymetric grid (SaharaSlide_HeadwallArea_150m_.grd) using several multibeam echosounder systems from several cruises
MSM82/2_32-1 * Latitude Start: 24.205190 * Longitude Start: -17.685650 * Latitude End: 24.805190 * Longitude End: -17.731250 * Date/Time Start: 2019-05-11T15:13:00 * Date/Time End: 2019-05-12T13:56:00 * Elevation Start: -2268.0 m * Elevation End: -2852.0 m * Campaign: MSM82/2 * Basis: Maria S. Merian * Method/Device: EM122 multibeam echosounder (EM122)
MSM82/2_37-1 * Latitude Start: 24.857390 * Longitude Start: -17.483190 * Latitude End: 25.938950 * Longitude End: -16.835740 * Date/Time Start: 2019-05-12T23:11:00 * Date/Time End: 2019-05-13T17:03:00 * Elevation Start: -2820.0 m * Elevation End: -3483.0 m * Campaign: MSM82/2 * Basis: Maria S. Merian * Method/Device: EM122 multibeam echosounder (EM122)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Tang, Qinqin | |||
| 2 | Binary Object (Media Type) | Binary (Type) | Tang, Qinqin | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Tang, Qinqin | ||
| 4 | Raster cell size | Raster cell size | Tang, Qinqin | |||
| 5 | File content | Content | Tang, Qinqin | |||
| 6 | Vertical datum | Vertical datum | Tang, Qinqin | |||
| 7 | Horizontal datum | Horizontal datum | Tang, Qinqin | |||
| 8 | Longitude, westbound | Longitude west | Tang, Qinqin | |||
| 9 | Longitude, eastbound | Longitude east | Tang, Qinqin | |||
| 10 | Latitude, southbound | Latitude south | Tang, Qinqin | |||
| 11 | Latitude, northbound | Latitude north | Tang, Qinqin | |||
| 12 | Number of depth soundings | Soundings | # | Tang, Qinqin | ||
| 13 | Area | Area | km2 | Tang, Qinqin | ||
| 14 | Elevation, minimum | Elev min | m a.s.l. | Tang, Qinqin | ||
| 15 | Elevation, maximum | Elev max | m a.s.l. | Tang, Qinqin |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 4 (ProcLevel4)
Size:
13 data points
Data
All files referred to in data matrix can be downloaded in one go as ZIP or TAR. Be careful: This download can be very large! To protect our systems from misuse, we require to sign up for an user account before downloading.
| 1 Binary | 2 Binary (Type) | 3 Binary (Size) [Bytes] | 4 Raster cell size | 5 Content | 6 Vertical datum | 7 Horizontal datum | 8 Longitude west | 9 Longitude east | 10 Latitude south | 11 Latitude north | 12 Soundings [#] | 13 Area [km2] | 14 Elev min [m a.s.l.] | 15 Elev max [m a.s.l.] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SaharaSlide_HeadwallArea_150m_.grd | application/x-hdf | 1.4 MBytes | 150m | bathymetry / negative values in meters for depth measurements / GeoTIFF raster image, Float32, DEFLATE compression | Mean sea level (MSL) | WGS 84 -- WGS84 - World Geodetic System 1984, EPSG:4326 | -18.4557 | -16.435 | 23.4108 | 26.1087 | 2726724 | 61308 | -3616 | -1122 |