Citation:

PANGAEA.898378

Name: MSM24 raw data of EM122 multibeam echosounder (bathymetry & beam time series)
Creator: Wolfram H Geissler
Published: 2019-02-14
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bathymetry; EM122; MBES; Tristan da Cunha

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:

Multibeam echosounder (MBES) data recorded during RV MARIA S. MERIAN cruise MSM24 between 27.12.2012 and 21.01.2013 around Tristan da Cunha. The cruise MSM24 aimed to answer the question whether Tristan da Cunha classifies as a hot-spot with deep reaching asthenospheric anomalies and initiated the opening of the South Atlantic or whether Tristan da Cunha is a consequence of tectonic processes associated with more shallow anomalies. Another goal was to retrieve 26 ocean-bottom magnetotelluric stations (OBEM) and 22 broadband ocean-bottom seismometers (BBOBS) as well as two seismic and one magnetotelluric (MT) land stations from the uninhabited Nightingale Island. 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 RV MARIA S. MERIAN cruise MSM24 the Kongsberg EM122 multibeam echosounder with a nominal sounding frequency of 11.5 to 12.5 kHz was utilized. 288 beams (and up to 864 soundings in equidistant and dual swath mode) are formed for each ping with a 2°(Tx)/2°(Rx) footprint while the seafloor is detected using amplitude and phase information for each beam sounding. For further information consult https://www.km.kongsberg.com/. The tracks were planned parallel to the tracks of the MSM20/2 cruise due to the decision to receive bathymetric information about the area of the different BBOBS and OBEM stations. In addition, bathymetric gaps in-between the old survey area around Tristan da Cunha were closed. A general swath width of 55° was used wider swath widths were tested occasionally, however, the data quality decreased dramatically for the outer beams, most probably due to the high ship speed of 12 to 13 kn. Due to some problems with the graphic card the corresponding multibeam software broke down occasionally. Responsible person during this cruise: Irena Schulten.

Chief Scientist: Wolfram H. Geissler

CR: https://www.tib.eu/de/suchen/id/awi%3Adoi~10.2312%252Fcr_msm24/

CSR: https://www2.bsh.de/aktdat/dod/fahrtergebnis/2012/20130046.htm

ADCP: https://doi.pangaea.de/10.1594/PANGAEA.823160

Keyword(s):

Bathymetry; EM122; MBES; Tristan da Cunha

Further details:

Geissler, Wolfram H (2013): Raw data of continuous VM-ADCP (vessel-mounted Acoustic Doppler Current Profiler) profile during Maria S. Merian cruise MSM24 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.823160

Geissler, Wolfram H (2014): Electromagnetic, gravimetric and seismic measurements to investigate the Tristan da Cunha hot spot and its role in the opening of the South Atlantic Ocean (MARKE) - Cruise No. MSM24 - December 27, 2012 - January 21, 2013 - Walvis Bay (Namibia) - Cape Town (South Africa). MARIA S. MERIAN-Berichte, DFG-Senatskommission für Ozeanographie, MSM24, 56 pp, https://doi.org/10.2312/cr_msm24

Project(s):

Center for Marine Environmental Sciences (MARUM)

Coverage:

Median Latitude: -28.423900 * Median Longitude: 16.468350 * South-bound Latitude: -33.906800 * West-bound Longitude: 14.503000 * North-bound Latitude: -22.941000 * East-bound Longitude: 18.433700

Date/Time Start: 2012-12-27T00:00:00 * Date/Time End: 2013-01-21T00:00:00

Event(s):

MSM24-track * Latitude Start: -22.941000 * Longitude Start: 14.503000 * Latitude End: -33.906800 * Longitude End: 18.433700 * Date/Time Start: 2012-12-27T00:00:00 * Date/Time End: 2013-01-21T00:00:00 * Campaign: * Basis: * Method/Device: Underway cruise track measurements (CT) * Comment: Walvis Bay - Cape Town

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:

3684 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_MSM24_EM122_20121228_123109.all	all	19432	0000_MSM24_EM122_20121228_123109.all
0001_MSM24_EM122_20121228_130104.all	all	19306	0001_MSM24_EM122_20121228_130104.all
0002_MSM24_EM122_20121228_133110.all	all	19437	0002_MSM24_EM122_20121228_133110.all
0003_MSM24_EM122_20121228_140112.all	all	19444	0003_MSM24_EM122_20121228_140112.all
0004_MSM24_EM122_20121228_143113.all	all	19544	0004_MSM24_EM122_20121228_143113.all
0005_MSM24_EM122_20121228_150102.all	all	19585	0005_MSM24_EM122_20121228_150102.all
0006_MSM24_EM122_20121228_153105.all	all	19562	0006_MSM24_EM122_20121228_153105.all
0007_MSM24_EM122_20121228_160103.all	all	20214	0007_MSM24_EM122_20121228_160103.all
0008_MSM24_EM122_20121228_163102.all	all	20706	0008_MSM24_EM122_20121228_163102.all
0009_MSM24_EM122_20121228_170108.all	all	20533	0009_MSM24_EM122_20121228_170108.all
0010_MSM24_EM122_20121228_173105.all	all	20538	0010_MSM24_EM122_20121228_173105.all
0011_MSM24_EM122_20121228_180108.all	all	20487	0011_MSM24_EM122_20121228_180108.all
0012_MSM24_EM122_20121228_183108.all	all	20405	0012_MSM24_EM122_20121228_183108.all
0013_MSM24_EM122_20121228_190104.all	all	20455	0013_MSM24_EM122_20121228_190104.all
0014_MSM24_EM122_20121228_193104.all	all	20482	0014_MSM24_EM122_20121228_193104.all
0015_MSM24_EM122_20121228_200107.all	all	20358	0015_MSM24_EM122_20121228_200107.all
0016_MSM24_EM122_20121228_203100.all	all	20422	0016_MSM24_EM122_20121228_203100.all
0017_MSM24_EM122_20121228_210101.all	all	20445	0017_MSM24_EM122_20121228_210101.all
0018_MSM24_EM122_20121228_213103.all	all	20451	0018_MSM24_EM122_20121228_213103.all
0019_MSM24_EM122_20121228_220106.all	all	20350	0019_MSM24_EM122_20121228_220106.all
0020_MSM24_EM122_20121228_223103.all	all	20251	0020_MSM24_EM122_20121228_223103.all
0021_MSM24_EM122_20121228_230108.all	all	20123	0021_MSM24_EM122_20121228_230108.all
0022_MSM24_EM122_20121228_233103.all	all	20152	0022_MSM24_EM122_20121228_233103.all
0023_MSM24_EM122_20121229_000102.all	all	20258	0023_MSM24_EM122_20121229_000102.all
0024_MSM24_EM122_20121229_003109.all	all	20143	0024_MSM24_EM122_20121229_003109.all
0025_MSM24_EM122_20121229_010107.all	all	20041	0025_MSM24_EM122_20121229_010107.all
0026_MSM24_EM122_20121229_013100.all	all	20100	0026_MSM24_EM122_20121229_013100.all
0027_MSM24_EM122_20121229_020102.all	all	20024	0027_MSM24_EM122_20121229_020102.all
0028_MSM24_EM122_20121229_023059.all	all	20186	0028_MSM24_EM122_20121229_023059.all
0029_MSM24_EM122_20121229_030108.all	all	20042	0029_MSM24_EM122_20121229_030108.all
0030_MSM24_EM122_20121229_033105.all	all	20062	0030_MSM24_EM122_20121229_033105.all
0031_MSM24_EM122_20121229_040103.all	all	20054	0031_MSM24_EM122_20121229_040103.all
0032_MSM24_EM122_20121229_043101.all	all	20189	0032_MSM24_EM122_20121229_043101.all
0033_MSM24_EM122_20121229_050112.all	all	20055	0033_MSM24_EM122_20121229_050112.all
0034_MSM24_EM122_20121229_053104.all	all	20241	0034_MSM24_EM122_20121229_053104.all
0035_MSM24_EM122_20121229_060112.all	all	20031	0035_MSM24_EM122_20121229_060112.all
0036_MSM24_EM122_20121229_063110.all	all	20024	0036_MSM24_EM122_20121229_063110.all
0037_MSM24_EM122_20121229_070109.all	all	20104	0037_MSM24_EM122_20121229_070109.all
0038_MSM24_EM122_20121229_073110.all	all	19915	0038_MSM24_EM122_20121229_073110.all
0039_MSM24_EM122_20121229_080100.all	all	19966	0039_MSM24_EM122_20121229_080100.all