Citation:

PANGAEA.901839

Name: MSM16/3 raw data of EM1002 multibeam echosounder (bathymetry & beam time series)
Published: 2019-05-17
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Atlantic; Bathymetry; EM1002; hydroacoustics; Mauritania; ROV

Always quote citation above when using data! You can download the citation in several formats below.

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Abstract:

Bathymetry data based on the multibeam echosounders (MBES) KONGSBERG EM120 and EM1002 was conducted during R/V MARIA S. MERIAN cruise MSM16/3 between 13.10.2010 and 20.11.2010 in the Eastern Atlantic off Mauritania. The expedition aimed at a comprehensive understanding of the complex sedimentary system on the Mauritian Shelf as an atypical tropical eutrophic ecosystem and an archive of palaeoclimatic change in Africa during the Holocene. During the expedition, the chain of Mauritian coral reef mounds was mapped for the first time, carbonate-producing organisms successfully sampled and the flooding history of the Golfe d'Arguin investigated. Hydroacoustic surveys were conducted for a better understanding of the topography, and particularly for the identification of coral mounds and their morphological and structural patterns. In addition to bathymetric mapping, further instruments complemented the research programme, such as the sub-bottom profiler PARASOUND, a fast-rescue boat for shallow water surveys, various sediment sampling and coring devices, a CTD, an aerial dust collector and a remotely operated vehicle (ROV).

CI Citation: Paul Wintersteller (seafloor-imaging@marum.de) as responsible party for bathymetry raw data ingest and approval.

Description of the data source:

During the MSM16/3 expedition, the KONGSBERG EM1002 multibeam ecosounder (MBES) was utilized for high-resolution bathymetric mapping in water depths from 30 to 800m. A semi-circular transducer array with a radius of 45 cm and 160° angular extent transmits a nominal sounding frequency of 95 kHz with a maximum angular coverage sector of 150°. During the reception, 111 beams with widths of 2° by 2.3° are formed. Depending on the reflectivity of the seafloor, the swath width can reach up to 7.4 times the water depth. During the cruise, the angular coverage sector and beam pointing angles were set to vary automatically with depth according to achievable coverage in order to maximize the number of usable beams. The depth of the water column is calculated through the two-way-travel time, beam angle and ray bending due to refraction in the water column by sound speed variations. Combining amplitude (for central beams) and phase (for slant beams) provides accuracy practically independent of the beam-pointing angle. For further information on the system, consult https://www.km.kongsberg.com/.

Responsible persons during this cruise / PI: Andre Freiwald (andre.freiwald@senckenberg.de), Till Hanebuth (thanebuth@coastal.edu) & Stephen Schilling

Chief Scientist: Hildegard Westphal (hildegard.westphal@zmt-bremen.de)

CR: https://www.tib.eu/en/search/id/awi%3Adoi~10.2312%252Fcr_msm16_3/

CSR: https://www2.bsh.de/aktdat/dod/fahrtergebnis/2010/20100362.htm

Keyword(s):

Atlantic; Bathymetry; EM1002; hydroacoustics; Mauritania; ROV

Further details:

Westphal, Hildegard; Beuck, Lydia; Braun, Stefan; Freiwald, André; Hanebuth, Till J J; Hetzinger, Steffen; Klicpera, André; Kudrass, Hermann-Rudolph; Lantzsch, Hendrik; Lundälv, Tomas; Vicens, Guillem Mateu; Preto, Nereo; von Reumont, Jonas; Schilling, Stephen; Taviani, Marco; Wienberg, Claudia (2014): Phaeton - Paleoceanographic and paleo-climatic record on the Mauritanian Shelf - Cruise No. MSM16/3 - October 13 - November 20, 2010 - Bremerhaven (Germany) - Mindelo (Cap Verde). MARIA S. MERIAN-Berichte, DFG-Senatskommission für Ozeanographie, MSM16/3, 57 pp, https://doi.org/10.2312/cr_msm16_3

Project(s):

Center for Marine Environmental Sciences (MARUM)

Coverage:

Median Latitude: 35.226800 * Median Longitude: -8.221400 * South-bound Latitude: 16.886100 * West-bound Longitude: -24.997600 * North-bound Latitude: 53.567500 * East-bound Longitude: 8.554800

Date/Time Start: 2010-10-13T00:00:00 * Date/Time End: 2010-11-20T00:00:00

Event(s):

MSM16/3-track * Latitude Start: 53.567500 * Longitude Start: 8.554800 * Latitude End: 16.886100 * Longitude End: -24.997600 * Date/Time Start: 2010-10-13T00:00:00 * Date/Time End: 2010-11-20T00:00:00 * Campaign: * Basis: * Method/Device: Underway cruise track measurements (CT) * Comment: Bremerhaven - Mindelo

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator
1	File name	File name		Wintersteller, Paul
2	File format	File format		Wintersteller, Paul
3	File size	File size	kByte	Wintersteller, Paul
4	Uniform resource locator/link to file	URL file		Wintersteller, Paul

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Basic curation (CurationLevelB) * Processing Level: PANGAEA data processing level 1 (ProcLevel1)

Size:

2724 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 File name	2 File format	3 File size [kByte]	4 URL file
0000_MSM16-3_EM1002_20101023_232901.all	ALL	25774	0000_MSM16-3_EM1002_20101023_232901.all
0001_MSM16-3_EM1002_20101023_235901.all	ALL	19876	0001_MSM16-3_EM1002_20101023_235901.all
0002_MSM16-3_EM1002_20101024_002901.all	ALL	11353	0002_MSM16-3_EM1002_20101024_002901.all
0003_MSM16-3_EM1002_20101024_005901.all	ALL	15427	0003_MSM16-3_EM1002_20101024_005901.all
0004_MSM16-3_EM1002_20101024_012901.all	ALL	26227	0004_MSM16-3_EM1002_20101024_012901.all
0005_MSM16-3_EM1002_20101024_015901.all	ALL	22314	0005_MSM16-3_EM1002_20101024_015901.all
0006_MSM16-3_EM1002_20101024_022901.all	ALL	11063	0006_MSM16-3_EM1002_20101024_022901.all
0007_MSM16-3_EM1002_20101024_025901.all	ALL	15635	0007_MSM16-3_EM1002_20101024_025901.all
0008_MSM16-3_EM1002_20101024_032901.all	ALL	26455	0008_MSM16-3_EM1002_20101024_032901.all
0009_MSM16-3_EM1002_20101024_035901.all	ALL	15657	0009_MSM16-3_EM1002_20101024_035901.all
0010_MSM16-3_EM1002_20101024_042901.all	ALL	10645	0010_MSM16-3_EM1002_20101024_042901.all
0011_MSM16-3_EM1002_20101024_045901.all	ALL	17832	0011_MSM16-3_EM1002_20101024_045901.all
0012_MSM16-3_EM1002_20101024_052901.all	ALL	29767	0012_MSM16-3_EM1002_20101024_052901.all
0013_MSM16-3_EM1002_20101024_055901.all	ALL	31998	0013_MSM16-3_EM1002_20101024_055901.all
0014_MSM16-3_EM1002_20101024_062901.all	ALL	33784	0014_MSM16-3_EM1002_20101024_062901.all
0015_MSM16-3_EM1002_20101024_065901.all	ALL	34551	0015_MSM16-3_EM1002_20101024_065901.all
0016_MSM16-3_EM1002_20101024_072901.all	ALL	32089	0016_MSM16-3_EM1002_20101024_072901.all
0017_MSM16-3_EM1002_20101024_075901.all	ALL	28776	0017_MSM16-3_EM1002_20101024_075901.all
0018_MSM16-3_EM1002_20101024_082901.all	ALL	24853	0018_MSM16-3_EM1002_20101024_082901.all
0019_MSM16-3_EM1002_20101024_085901.all	ALL	24873	0019_MSM16-3_EM1002_20101024_085901.all
0020_MSM16-3_EM1002_20101024_092901.all	ALL	22545	0020_MSM16-3_EM1002_20101024_092901.all
0021_MSM16-3_EM1002_20101024_095901.all	ALL	20747	0021_MSM16-3_EM1002_20101024_095901.all
0022_MSM16-3_EM1002_20101024_102901.all	ALL	13949	0022_MSM16-3_EM1002_20101024_102901.all
0023_MSM16-3_EM1002_20101024_105901.all	ALL	11826	0023_MSM16-3_EM1002_20101024_105901.all
0024_MSM16-3_EM1002_20101024_112901.all	ALL	12101	0024_MSM16-3_EM1002_20101024_112901.all
0025_MSM16-3_EM1002_20101024_115901.all	ALL	14527	0025_MSM16-3_EM1002_20101024_115901.all
0026_MSM16-3_EM1002_20101024_122901.all	ALL	25750	0026_MSM16-3_EM1002_20101024_122901.all
0027_MSM16-3_EM1002_20101024_125901.all	ALL	26081	0027_MSM16-3_EM1002_20101024_125901.all
0028_MSM16-3_EM1002_20101024_132901.all	ALL	24263	0028_MSM16-3_EM1002_20101024_132901.all
0029_MSM16-3_EM1002_20101024_135901.all	ALL	22853	0029_MSM16-3_EM1002_20101024_135901.all
0030_MSM16-3_EM1002_20101024_142901.all	ALL	22658	0030_MSM16-3_EM1002_20101024_142901.all
0031_MSM16-3_EM1002_20101024_145901.all	ALL	6894	0031_MSM16-3_EM1002_20101024_145901.all
0032_MSM16-3_EM1002_20101024_155716.all	ALL	25292	0032_MSM16-3_EM1002_20101024_155716.all
0033_MSM16-3_EM1002_20101024_162716.all	ALL	25734	0033_MSM16-3_EM1002_20101024_162716.all
0034_MSM16-3_EM1002_20101024_165716.all	ALL	26163	0034_MSM16-3_EM1002_20101024_165716.all
0035_MSM16-3_EM1002_20101024_172716.all	ALL	23116	0035_MSM16-3_EM1002_20101024_172716.all
0036_MSM16-3_EM1002_20101024_175716.all	ALL	25390	0036_MSM16-3_EM1002_20101024_175716.all
0037_MSM16-3_EM1002_20101024_182716.all	ALL	27111	0037_MSM16-3_EM1002_20101024_182716.all
0038_MSM16-3_EM1002_20101024_185716.all	ALL	32425	0038_MSM16-3_EM1002_20101024_185716.all
0039_MSM16-3_EM1002_20101024_192716.all	ALL	34791	0039_MSM16-3_EM1002_20101024_192716.all