Lüdmann Thomas thomas.luedmann@uni-hamburg.de https://www.geo.uni-hamburg.de/en/geologie/personen/luedmann-thomas.html 0000-0001-6847-5502 University of Hamburg https://ror.org/00g30e956 Westphal Hildegard hildegard.westphal@leibniz-zmt.de 0000-0001-7324-6122 Leibniz Centre for Tropical Marine Research, Bremen, Germany ZMT https://leibniz-zmt.de/ https://ror.org/019w00969 2026 2D multichannel seismic reflection processed data (working area dataset) of RV METEOR during cruise M193, Red Sea dataset https://doi.org/10.1594/PANGAEA.994145 2026-05-28T07:29:20 The dataset comprises parts of reflection seismic lines obtained offshore Saudi Arabia in the Red Sea. These were collected from 15 to 24 September 2023 as part of the RV Meteor M193 cruise, using a 144-channel digital streamer and an array of two GI guns with a total volume of 150 in³. The guns were fired in GI mode at 160 bar every 25 m. The streamer had an active length of 600 m and hydrophone group intervals of 4.167 m. The data were digitised at a sampling interval of 1 ms with a record length of 4 seconds. The streamer was kept 3–5 m below the sea surface using four navigational control units ('birds'). Navigation was provided by the shipboard Seapath GPS system. The seismic lines were processed using Halliburton-Landmark SeisSpace software, which included band-pass filtering (20–200 Hz), spherical spreading correction and 2D surface-related multiple estimation and subtraction to suppress multiples. To correct for reflection-point smearing caused by dipping reflectors in stacked data, pre-stack ensemble dip moveout correction in T-X domain was applied. The data were then stacked with a bin size of 12.5 m. Post-stack time migration was conducted to accurately position dipping reflections and collapse diffraction events. To improve the imaging of seismic reflections beneath the salt layer, a final bandpass filter (20–60 Hz) was applied. This study was funded by grant GPF 21-1/026 – REPLENISH from the Deutsche Forschungsgemeinschaft, and aimed to reveal the tectonic regime in the northern Red Sea, off the Al Wajh carbonate platform and adjacent to the Mabahiss Deep. Lüdmann Thomas thomas.luedmann@uni-hamburg.de https://www.geo.uni-hamburg.de/en/geologie/personen/luedmann-thomas.html 0000-0001-6847-5502 Westphal Hildegard hildegard.westphal@leibniz-zmt.de 0000-0001-7324-6122 Marchese Fabio Petrovic Alexander alexander.petrovic@kaust.edu.sa 0000-0003-0804-3665 Vahrenkamp Volker volker.vahrenkamp@kaust.edu.sa submitted Post-Miocene transtensional opening of the northern Red Sea journal article Geochemistry, Geophysics, Geosystems 35.569483 36.449333 25.466417 26.4736 36.06504149999999 26.10215025 2023-09-15T11:00:52 2023-09-26T11:01:19 -1058.0 -812.0 not specified REPLENISH Red Sea Paleoenvironmental Evolution under Monsoon fluctuations in the Pleistocene to Holocene https://www.geo.uni-hamburg.de/geologie/forschung/sedimentologie-und-sequenzstratigraphie/forschung/replenish.html Institute for Geology, University of Hamburg https://www.geo.uni-hamburg.de/en/geologie.html https://ror.org/00g30e956 M193_18-1 26.462217 35.569483 -812.0 2023-09-15T11:00:52 26.4736 35.942583 -1058.0 2023-09-19T00:42:27 M193 M193 REPLENISH REPLENISH Limassol, Cyprus 2023-09-08T00:00:00 2023-09-08 Jeddah, Saudi Arabia 2023-10-06T00:00:00 2023-10-06 Meteor (1986) https://en.wikipedia.org/wiki/RV_Meteor_(1986) DBBH 8411279 Lüdmann, Thomas Lüdmann, Thomas doi:10.48433/cr_m193 20230025 https://download.pangaea.de/reference/123778/attachments/M193_nav.jpg doi:10.1594/PANGAEA.964262 Meteor (1986) https://en.wikipedia.org/wiki/RV_Meteor_(1986) DBBH 8411279 Multichannel seismics MCSEIS multi-channel seismic reflection systems http://vocab.nerc.ac.uk/collection/L05/current/154/ 144-channel digital streamer with an active length of 600 m M193_39-1 26.006367 36.298767 -1012.0 2023-09-22T04:19:34 25.466417 36.449333 -873.0 2023-09-26T11:01:19 M193 M193 REPLENISH REPLENISH Limassol, Cyprus 2023-09-08T00:00:00 2023-09-08 Jeddah, Saudi Arabia 2023-10-06T00:00:00 2023-10-06 Meteor (1986) https://en.wikipedia.org/wiki/RV_Meteor_(1986) DBBH 8411279 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