Bohrmann Gerhard gbohrmann@marum.de 0000-0001-9976-4948 Spieß Volkhard vspiess@uni-bremen.de Keil Hanno hanno.keil@uni-bremen.de 0000-0003-3072-6753 Brüning Markus Mortera-Gutierrez Carlos cmortera@geofisica.unam.mx 0000-0002-8522-004X Pacheco Munoz Jorge Pelaez Juan Ramòn 2019 M67-2 raw data of EM710 multibeam echosounder (bathymetry & beam time series) dataset https://doi.org/10.1594/PANGAEA.902765 2019-06-19T08:03:11 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 Weinrebe Reimer Wilhelm wweinrebe@geomar.de Bohrmann Gerhard gbohrmann@marum.de 0000-0001-9976-4948 Spieß Volkhard vspiess@uni-bremen.de 2010 Fluid Seepage of Chile and in the Southern Gulf of Mexico - Cruise No. M67 - February 20 - April 25, 2006 - Talcahuano (Chile) - Bridgetown (Barbados) report METEOR-Berichte, DFG-Senatskommission für Ozeanographie M67 https://doi.org/10.2312/cr_m67 110 pp -79.91559999999998 -59.6311 9.3812 13.1036 -69.77335 11.2424 2006-03-14T00:00:00 2006-03-31T00:00:00 not specified MARUM Center for Marine Environmental Sciences https://www.marum.de/en/ MARUM - Center for Marine Environmental Sciences, University Bremen MARUM http://www.marum.de/ https://ror.org/04ers2y35 M67/2a-track 9.3812 -79.9156 2006-03-14T00:00:00 13.1036 -59.6311 2006-03-31T00:00:00 M67/2a M67/2a Cristobal, Panama 2006-03-14T00:00:00 2006-03-14 Bridgetown, Barbados 2006-03-31T00:00:00 2006-03-31 Meteor (1986) https://en.wikipedia.org/wiki/RV_Meteor_(1986) DBBH 8411279 Spieß, Volkhard Spieß, Volkhard doi:10.2312/cr_m67 20060077 hdl:10013/epic.44784.d019 hdl:10013/epic.44803.d084 Meteor (1986) https://en.wikipedia.org/wiki/RV_Meteor_(1986) DBBH 8411279 Underway cruise track measurements CT Cristobal - Bridgetown 484 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ File name File name Wintersteller Paul pwintersteller@marum.de 0000-0002-4834-7965 File name File format File format Wintersteller Paul pwintersteller@marum.de 0000-0002-4834-7965 File format File size File size kByte size http://purl.obolibrary.org/obo/PATO_0000117 Wintersteller Paul pwintersteller@marum.de 0000-0002-4834-7965 File size [kByte] Uniform resource locator/link to file URL file Wintersteller Paul pwintersteller@marum.de 0000-0002-4834-7965 URL file CurationLevelB Basic curation https://wiki.pangaea.de/wiki/Curation_levels ProcLevel1 PANGAEA data processing level 1 https://wiki.pangaea.de/wiki/Processing_levels#PANGAEA_data_processing_level_1 citable asphalt volcanoes Bathymetry EM710 Gulf of Mexico hydroacoustics author10191 author22706 author27458 author32222 author38 author4 author50459 author50460 basis2 campaign29800 campaign3391652 curlevel20 event2720542 geocode1599 geocode1600 geocode1601 inst277 journal16697 license21 method11752 param16143 param16144 param25541 param54251 pi35247 proclevel20 project4011 ref68442 term1073204 term34390 term48071 term48624 term48905 term49587 term77654 term77782 topotype1