Citation:

PANGAEA.892982

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 METEOR cruise M146 between 17.03.2018 and 16.04.2018. The data covers the transit (cruise started in Receive/Brazil) in international waters crossing the Atlantic Ocean, a single survey line crossing Tropiquito seamount (SW of Tropic seamount) and the main target at Henry seamount, southeast of El Hierro, Canary Islands. The main objective of this cruise was to discover hydrothermal venting sites at Henry Seamount as data acquired during the previous cruise M66/1 showed evidences that there might be active hydrothermal circulation at Henry Seamount. Therefore, the bathymetric surveys conducted with hull-mounted MBES and the MARUM AUV SEAL were accompanied with investigations in the water column, heat flow measurements, TV-sled dives and high-resolution reflection seismic. CI Citation: Paul Wintersteller (seafloor-imaging@marum.de) as responsible party for bathymetry and backscatter post-processing and its products.

Description of the data source:

During the RV METEOR cruise M146 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 1°(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 EM122 was recording constantly within the permitted areas, either designated to bathymetry surveys or flare imaging-surveys. In total, three different subsets of hydroacoustic data were acquired: a transatlantic dataset covering the transit in international waters; a second dataset covering the area of Tropiquito Seamount, which is situated about 100 km southwest of Tropico seamount and the main dataset of the area of Henry Seamount, which is located roughly 40 km southeast of El Hierro (Canary Islands). Responsible person during this cruise / PI: Miriam Römer (mroemer@marum.de) & Paul Wintersteller (pwintersteller@marum.de)

Chief Scientist: A. Klügel (akluegel@uni-bremen.de)

CR: not yet available

CSR: not yet available

A special thanks goes to the watch keeper during M146:

Anna Katharina Bachmann, Rachel Barrett, Philipp Held, Kai Frederik Lenz, Katja Lindhorst, Anne-Christin Melcher, Laura Kramer, Nikolas Stange, Anne Strack.

Related to:

Wintersteller, Paul; Strack, Anne; Bachmann, Anna Katharina; Gaide, Stefanie (2018): Gridded bathymetry from multibeam echosounder EM122 data of METEOR cruise M146, Henry Seamount [dataset]. MARUM - Center for Marine Environmental Sciences, University Bremen, PANGAEA, https://doi.org/10.1594/PANGAEA.893952

Project(s):

Center for Marine Environmental Sciences (MARUM)

Coverage:

Median Latitude: 10.050000 * Median Longitude: -25.135000 * South-bound Latitude: -8.050000 * West-bound Longitude: -34.850000 * North-bound Latitude: 28.150000 * East-bound Longitude: -15.420000

Date/Time Start: 2018-03-17T00:00:00 * Date/Time End: 2018-04-16T00:00:00

Event(s):

M146-track * Latitude Start: -8.050000 * Longitude Start: -34.850000 * Latitude End: 28.150000 * Longitude End: -15.420000 * Date/Time Start: 2018-03-17T00:00:00 * Date/Time End: 2018-04-16T00:00:00 * Campaign: * Basis: * Method/Device: Underway cruise track measurements (CT)

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:

2660 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
0194_20180327_133250_M146_EM122.all	ALL	20933.586	0194_20180327_133250_M146_EM122.all
0195_20180327_140247_M146_EM122.all	ALL	21029.498	0195_20180327_140247_M146_EM122.all
0196_20180327_143248_M146_EM122.all	ALL	20769.326	0196_20180327_143248_M146_EM122.all
0197_20180327_150237_M146_EM122.all	ALL	21126.689	0197_20180327_150237_M146_EM122.all
0198_20180327_153240_M146_EM122.all	ALL	21217.479	0198_20180327_153240_M146_EM122.all
0199_20180327_160240_M146_EM122.all	ALL	20827.641	0199_20180327_160240_M146_EM122.all
0200_20180327_163237_M146_EM122.all	ALL	20525.086	0200_20180327_163237_M146_EM122.all
0201_20180327_170238_M146_EM122.all	ALL	21165.668	0201_20180327_170238_M146_EM122.all
0202_20180327_173250_M146_EM122.all	ALL	20678.746	0202_20180327_173250_M146_EM122.all
0203_20180327_180240_M146_EM122.all	ALL	20860.385	0203_20180327_180240_M146_EM122.all
0204_20180327_183246_M146_EM122.all	ALL	21242.012	0204_20180327_183246_M146_EM122.all
0205_20180327_190242_M146_EM122.all	ALL	21474.373	0205_20180327_190242_M146_EM122.all
0206_20180327_193248_M146_EM122.all	ALL	21574.109	0206_20180327_193248_M146_EM122.all
0207_20180327_200238_M146_EM122.all	ALL	21611.848	0207_20180327_200238_M146_EM122.all
0208_20180327_203238_M146_EM122.all	ALL	21104.371	0208_20180327_203238_M146_EM122.all
0209_20180327_210244_M146_EM122.all	ALL	21785.889	0209_20180327_210244_M146_EM122.all
0210_20180327_213249_M146_EM122.all	ALL	21367.684	0210_20180327_213249_M146_EM122.all
0211_20180327_220244_M146_EM122.all	ALL	21267.527	0211_20180327_220244_M146_EM122.all
0212_20180327_223250_M146_EM122.all	ALL	21282.957	0212_20180327_223250_M146_EM122.all
0213_20180327_230242_M146_EM122.all	ALL	21333.246	0213_20180327_230242_M146_EM122.all
0214_20180327_233239_M146_EM122.all	ALL	21558.053	0214_20180327_233239_M146_EM122.all
0215_20180328_000242_M146_EM122.all	ALL	21514.277	0215_20180328_000242_M146_EM122.all
0216_20180328_003249_M146_EM122.all	ALL	21342.678	0216_20180328_003249_M146_EM122.all
0217_20180328_010239_M146_EM122.all	ALL	21376.266	0217_20180328_010239_M146_EM122.all
0218_20180328_013244_M146_EM122.all	ALL	16207.166	0218_20180328_013244_M146_EM122.all
0219_20180328_015526_M146_EM122.all	ALL	7038.666	0219_20180328_015526_M146_EM122.all
0220_20180328_020519_M146_EM122.all	ALL	21302.346	0220_20180328_020519_M146_EM122.all
0221_20180328_023506_M146_EM122.all	ALL	21322.877	0221_20180328_023506_M146_EM122.all
0222_20180328_030501_M146_EM122.all	ALL	21184.414	0222_20180328_030501_M146_EM122.all
0223_20180328_033504_M146_EM122.all	ALL	21140.367	0223_20180328_033504_M146_EM122.all
0224_20180328_040459_M146_EM122.all	ALL	21554.566	0224_20180328_040459_M146_EM122.all
0225_20180328_043509_M146_EM122.all	ALL	21249.082	0225_20180328_043509_M146_EM122.all
0226_20180328_050458_M146_EM122.all	ALL	21562.607	0226_20180328_050458_M146_EM122.all
0227_20180328_053505_M146_EM122.all	ALL	21653.982	0227_20180328_053505_M146_EM122.all
0228_20180328_060511_M146_EM122.all	ALL	21583.791	0228_20180328_060511_M146_EM122.all
0229_20180328_063508_M146_EM122.all	ALL	29248.967	0229_20180328_063508_M146_EM122.all
0230_20180328_070500_M146_EM122.all	ALL	70158.102	0230_20180328_070500_M146_EM122.all
0231_20180328_073458_M146_EM122.all	ALL	31713.277	0231_20180328_073458_M146_EM122.all
0232_20180328_080501_M146_EM122.all	ALL	21957.670	0232_20180328_080501_M146_EM122.all
0232_20180328_080501_M146_EM122.wcd	WCD	1543.322	0232_20180328_080501_M146_EM122.wcd