de.pangaea.dataset964713 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-06-17T16:25:26Z https://doi.pangaea.de/10.1594/PANGAEA.964713 <gco:CharacterString>2D multichannel seismic reflection processed data (GI Gun working area dataset) of RV MARIA S. MERIAN during cruise MSM84, Labrador Sea</gco:CharacterString> 2024-02-27T07:15:20 publication https://doi.org/10.1594/PANGAEA.964713 Lenz, Kai-Frederik
frederik.lenz@ifg.uni-kiel.de
https://orcid.org/0000-0003-3043-8399 information author Gebhardt, Andrea Catalina
catalina.gebhardt@awi.de
https://orcid.org/0000-0002-3227-0676 information author Gross, Felix
felix.gross@ifg.uni-kiel.de
https://orcid.org/0000-0002-0749-829X information author Lohrberg, Arne
arne.lohrberg@ifg.uni-kiel.de
https://orcid.org/0000-0002-7976-6919 information author Krastel, Sebastian
sebastian.krastel@ifg.uni-kiel.de
https://orcid.org/0000-0002-5899-9748 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Three 2D reflection seismic profiles from three glacial cross-shelf troughs of the Labrador Shelf, namely the Okak, Makkovik and Cartwright troughs, are presented. The data were collected onboard the Maria S. Merian during cruise and MSM84 using two different multi-channel streamers; a Geometrics GeoEel solid state digital high-resolution streamer (active length 75 m, channel spacing 1.5625 m; hereafter short streamer) and a digital Sercel high-resolution streamer system (active length 600 m, channel spacing 3.125 m; hereafter long streamer). Details regarding the used seismic systems can be found in the cruise report (doi:10.2312/cr_msm84). Data were processed using the commercial VISTA Desktop Seismic Data Processing Software (Schlumberger, version 2018). The standard processing approach included demultiplexing, bulk shifting, frequency filtering (Ormsby as well as in the FK-domain), spiking deconvolution, compensation of spherical divergence and common-midpoint (CMP) binning. The CMP bin size was set to 3.125 m for both datasets. For the short streamer a normal-move-out correction with a constant sound velocity of 1500 ms-1 was performed as the limited offset range of short streamer did not allow for a precise velocity analysis. Afterwards, a static correction was applied as the short streamer was towed close to the water surface. Finally, a CMP stack was calculated followed by a finite differences time migration. The dataset of the long streamer shows a strong receiver ghost, which is related to the tow depth of approximately 10 m below the water surface. This receiver ghost was suppressed. Afterwards, a data-driven velocity analysis was carried out by picking seismic velocities for every 500 CMPs. Normal-move-out correction, CMP stacking and a finite differences time migration were carried out using the velocity field. Finally, a white noise removal was performed. The objective of data recording on the Labrador Shelf is to map glacial landforms and reconstruct the dynamics of the Laurentide Ice Sheet in detail. completed Lenz, Kai-Frederik
frederik.lenz@ifg.uni-kiel.de
https://orcid.org/0000-0003-3043-8399 information principalInvestigator 2D seismic data reflection seismics theme <gco:CharacterString>PANGAEA Keyword 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 -60.69127 -55.36282 54.48508 57.87487 2019-07-02T15:26:00 2019-07-15T18:34:00 Ship time for the cruise MSM84 was funded by the DFG under the award MerMet 17-49, Gebhardt, LABRADOR-GLACIALS. Event label thematicClassification Binary Object thematicClassification Binary Object (Media Type) thematicClassification Binary Object (File Size) physicalMeasurement Bytes Bytes Binary Object (MD5 Hash) thematicClassification File content thematicClassification Seismic reflection profile text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.964713?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: MSM84_35-1 * LATITUDE START: 57.553520 * LONGITUDE START: -60.531320 * LATITUDE END: 57.874870 * LONGITUDE END: -60.691270 * DATE/TIME START: 2019-07-02T15:26:00 * DATE/TIME END: 2019-07-04T11:24:00 * ELEVATION START: -165.9 m * ELEVATION END: -255.7 m * CAMPAIGN: MSM84 * BASIS: Maria S. Merian * METHOD/DEVICE: Seismic Seismic Towed Receiver; cut out length: 681m 2019-07-02T15:26:00 EVENT LABEL: MSM84_35-2 * LATITUDE START: 57.756920 * LONGITUDE START: -60.602480 * LATITUDE END: 57.828550 * LONGITUDE END: -60.676880 * DATE/TIME START: 2019-07-02T17:59:00 * DATE/TIME END: 2019-07-04T10:47:00 * ELEVATION START: -304.6 m * ELEVATION END: -265.2 m * CAMPAIGN: MSM84 * BASIS: Maria S. Merian * METHOD/DEVICE: Seismic Seismic Source 2019-07-02T17:59:00 EVENT LABEL: MSM84_45-1 * LATITUDE START: 55.031280 * LONGITUDE START: -57.497250 * LATITUDE END: 55.319970 * LONGITUDE END: -57.490130 * DATE/TIME START: 2019-07-09T15:34:00 * DATE/TIME END: 2019-07-10T17:37:00 * ELEVATION START: -293.1 m * ELEVATION END: -135.0 m * CAMPAIGN: MSM84 * BASIS: Maria S. Merian * METHOD/DEVICE: Seismic Seismic Towed Receiver; cut out length: 681m 2019-07-09T15:34:00 EVENT LABEL: MSM84_45-2 * LATITUDE START: 55.089770 * LONGITUDE START: -57.408980 * LATITUDE END: 55.272450 * LONGITUDE END: -57.520230 * DATE/TIME START: 2019-07-09T16:32:00 * DATE/TIME END: 2019-07-10T16:53:00 * ELEVATION START: -346.1 m * ELEVATION END: -155.4 m * CAMPAIGN: MSM84 * BASIS: Maria S. Merian * METHOD/DEVICE: Seismic Seismic Source 2019-07-09T16:32:00 EVENT LABEL: MSM84_55-1 * LATITUDE START: 55.047380 * LONGITUDE START: -55.771230 * LATITUDE END: 55.132580 * LONGITUDE END: -56.180530 * DATE/TIME START: 2019-07-13T21:00:00 * DATE/TIME END: 2019-07-14T00:31:00 * ELEVATION START: -269.4 m * ELEVATION END: -280.7 m * CAMPAIGN: MSM84 * BASIS: Maria S. Merian * METHOD/DEVICE: Seismic Seismic Towed Receiver; cut out length: 147.5m 2019-07-13T21:00:00 EVENT LABEL: MSM84_55-2 * LATITUDE START: 55.064580 * LONGITUDE START: -55.855900 * LATITUDE END: 54.485080 * LONGITUDE END: -55.362820 * DATE/TIME START: 2019-07-13T21:42:00 * DATE/TIME END: 2019-07-15T18:34:00 * ELEVATION START: -292.2 m * ELEVATION END: -167.5 m * CAMPAIGN: MSM84 * BASIS: Maria S. Merian * METHOD/DEVICE: Seismic Seismic Source 2019-07-13T21:42:00 Related to <gco:CharacterString>Development of the Labrador Shelf During the Past Glaciations, Cruise No. MSM84, June 19 to July 16, 2019, St. John's (Canada) - St. John's (Canada)</gco:CharacterString> 2020-01-01 publication https://doi.org/10.2312/cr_msm84 Gebhardt, Andrea Catalina
catalina.gebhardt@awi.de
https://orcid.org/0000-0002-3227-0676 information author Ohlendorf, Christian
ohlen@uni-bremen.de
https://orcid.org/0000-0003-3794-7313 information author Gross, Felix
felix.gross@ifg.uni-kiel.de
https://orcid.org/0000-0002-0749-829X information author Matthiessen, Jens
jens.matthiessen@awi.de
https://orcid.org/0000-0002-6952-2494 information author Schneider, Ralph R
ralph.schneider@ifg.uni-kiel.de
https://orcid.org/0000-0003-1453-9181 information author documentDigital MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe MSM84 78 pp Related to <gco:CharacterString>Geomorphological analysis of grounding-zone wedges reveals glacial retreat processes on the Labrador Shelf</gco:CharacterString> https://doi.org/10.1016/j.margeo.2024.107249 Lenz, K-L author Gross, Felix
felix.gross@ifg.uni-kiel.de
https://orcid.org/0000-0002-0749-829X information author Kolling, Henriette Marie
henriette.kolling@ifg.uni-kiel.de
https://orcid.org/0000-0003-4198-941X information author Lohrberg, Arne
arne.lohrberg@ifg.uni-kiel.de
https://orcid.org/0000-0002-7976-6919 information author Couette, Pierre-Olivier
pierre-olivier.couette.1@ulaval.ca
author Ohlendorf, Christian
ohlen@uni-bremen.de
https://orcid.org/0000-0003-3794-7313 information author Schneider, Ralph R
ralph.schneider@ifg.uni-kiel.de
https://orcid.org/0000-0003-1453-9181 information author Krastel, Sebastian
sebastian.krastel@ifg.uni-kiel.de
https://orcid.org/0000-0002-5899-9748 information author Gebhardt, Andrea Catalina
catalina.gebhardt@awi.de
https://orcid.org/0000-0002-3227-0676 information author documentDigital Marine Geology Documentation <gco:CharacterString>Ancillary navigational metadata (ukooa) from 2D multichannel seismic reflection processed data (GI Gun working area dataset) of RV MARIA S. MERIAN during cruise MSM84, Davis Strait</gco:CharacterString> Lenz, Kai-Frederik
frederik.lenz@ifg.uni-kiel.de
https://orcid.org/0000-0003-3043-8399 information author documentHardcopy