de.pangaea.dataset902765 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-04-29T20:14:27Z https://doi.pangaea.de/10.1594/PANGAEA.902765 <gco:CharacterString>M67-2 raw data of EM710 multibeam echosounder (bathymetry & beam time series)</gco:CharacterString> 2019-06-19T08:03:11 publication https://doi.org/10.1594/PANGAEA.902765 Bohrmann, Gerhard
gbohrmann@marum.de
https://orcid.org/0000-0001-9976-4948 information author Spieß, Volkhard
vspiess@uni-bremen.de
author Keil, Hanno
hanno.keil@uni-bremen.de
https://orcid.org/0000-0003-3072-6753 information author Brüning, Markus author Mortera-Gutierrez, Carlos
cmortera@geofisica.unam.mx
https://orcid.org/0000-0002-8522-004X information author Pacheco Munoz, Jorge author Pelaez, Juan Ramòn author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Between 14.03.2006 and 25.04.2006, bathymetric data based on the KONGSBERG EM710 system (MBES) was acquired in the Gulf of Mexico during the R/V METEOR cruise M67/2. The main research goal was the investigation of asphalt volcanoes in the Campeche Bay and related sedimentary structures. The leg was split into two parts. During the first sub-leg 2a geophysical and especially hydroacoustic methods were used to explore the distribution of these asphalt volcanoes and to map knolls as well as other structures like mass wasting and asphalt flows. Using reflection seismic, sedimentary structures related to the volcanoes were also investigated. Further mapping but also sampling of vent fluids and asphalt was the research interest of sub-leg 2b. Therefore the Remotely Operating Vehicle (ROV) QUEST (Marum) as well as a TV-MUC were used. Bathymetry mapping was done using the EM120 for deeper and the EM710 for shallower regions. 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 M67/2 cruise, the hull-mounted multibeam echosounder (MBES) KONGSBERG EM710 was utilized to perform bathymetric mapping in shallower areas. It allows to conduct surveys in water depths of up to 2,000 m, however it operates best in shallower water depths under 500 m. Two transducer arrays transmit frequency coded acoustic signals (70 to 100 kHz). Data acquisition is based on continuous wave pulses in shallower depths and FM (chirp) pulses in greater depths. The beam footprint has a dimension of 1° by 1°. For further information on the system, consult: https://www.km.kongsberg.com/ Due to the water depth of the research area the EM120 was permanently used, while the EM710 was only used in few parts of the research area. To convert the recorded travel times into water depth, several sound velocity profiles were obtained with the shipboard CTD, providing a correction for ray bending for each beam. Depth is estimated from each beam by using the two-way travel time and the known beam angle known, and taking into account the ray bending due to refraction in the water column by sound speed variations. Responsible person during this cruise / PI: Volkhard Spieß (vspiess uni-bremen.de), Gerhard Bohrmann (gbohrmann@marum.de) Chief Scientist: : Volkhard Spieß (vspiess uni-bremen.de), Gerhard Bohrmann (gbohrmann@marum.de) CR: https://www.tib.eu/de/suchen/id/awi%3Adoi~10.2312%252Fcr_m67/ CSR: https://www2.bsh.de/aktdat/dod/fahrtergebnis/2006/20060077.htm completed Wintersteller, Paul
pwintersteller@marum.de
https://orcid.org/0000-0002-4834-7965 information principalInvestigator asphalt volcanoes Bathymetry EM710 Gulf of Mexico hydroacoustics theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact MARUM Center for Marine Environmental Sciences theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -79.91559999999998 -59.6311 9.3812 13.1036 2006-03-14T00:00:00 2006-03-31T00:00:00 File name thematicClassification File format thematicClassification File size physicalMeasurement kByte kByte Uniform resource locator/link to file thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.902765?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: M67/2a-track * LATITUDE START: 9.381200 * LONGITUDE START: -79.915600 * LATITUDE END: 13.103600 * LONGITUDE END: -59.631100 * DATE/TIME START: 2006-03-14T00:00:00 * DATE/TIME END: 2006-03-31T00:00:00 * CAMPAIGN: M67/2a * BASIS: Meteor (1986) * METHOD/DEVICE: Underway cruise track measurements Cristobal - Bridgetown 2006-03-14T00:00:00 Further details <gco:CharacterString>Fluid Seepage of Chile and in the Southern Gulf of Mexico - Cruise No. M67 - February 20 - April 25, 2006 - Talcahuano (Chile) - Bridgetown (Barbados)</gco:CharacterString> 2010-01-01 publication https://doi.org/10.2312/cr_m67 Weinrebe, Reimer Wilhelm
wweinrebe@geomar.de
author Bohrmann, Gerhard
gbohrmann@marum.de
https://orcid.org/0000-0001-9976-4948 information author Spieß, Volkhard
vspiess@uni-bremen.de
author documentDigital METEOR-Berichte, DFG-Senatskommission für Ozeanographie M67 110 pp