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2D multichannel seismic reflection sorted data (GI Gun) of RV SONNE cruise SO232 in 2014 to the Mozambique Ridge, seismic reflection profile AWI-20140222
No full textSeismic reflection data collected on the Mozambique Ridge during cruise SO232 with RV Sonne in 2014. 4 GI-guns were used a seismic source, the data were recorded with a 3000 m (active length) long digital streamer. The data are CDP-sorted. No gain, filter or mute have been applied. The data are in SEGY format. See cruise report (Uenzelmann-Neben, 2014) or ReadMe file for more information on acquisition parameters
2D multichannel seismic reflection sorted data (GI Gun) of RV SONNE cruise SO232 in 2014 to the Mozambique Ridge, seismic reflection profile AWI-20140209
No full textSeismic reflection data collected on the Mozambique Ridge during cruise SO232 with RV Sonne in 2014. 4 GI-guns were used a seismic source, the data were recorded with a 3000 m (active length) long digital streamer. The data are CDP-sorted. No gain, filter or mute have been applied. The data are in SEGY format. See cruise report (Uenzelmann-Neben, 2014) or ReadMe file for more information on acquisition parameters
2D multichannel seismic reflection sorted data (GI Gun) of RV SONNE cruise SO232 in 2014 to the Mozambique Ridge, seismic reflection profile AWI-20140216
No full textSeismic reflection data collected on the Mozambique Ridge during cruise SO232 with RV Sonne in 2014. 4 GI-guns were used a seismic source, the data were recorded with a 3000 m (active length) long digital streamer. The data are CDP-sorted. No gain, filter or mute have been applied. The data are in SEGY format. See cruise report (Uenzelmann-Neben, 2014) or ReadMe file for more information on acquisition parameters
2D multichannel seismic reflection sorted data (GI Gun) of RV SONNE cruise SO232 in 2014 to the Mozambique Ridge, seismic reflection profile AWI-20140220
No full textSeismic reflection data collected on the Mozambique Ridge during cruise SO232 with RV Sonne in 2014. 4 GI-guns were used a seismic source, the data were recorded with a 3000 m (active length) long digital streamer. The data are CDP-sorted. No gain, filter or mute have been applied. The data are in SEGY format. See cruise report (Uenzelmann-Neben, 2014) or ReadMe file for more information on acquisition parameters
Diatom-derived highly branched isoprenoids in lake waters and sediments
No full textDiatom-derived highly branched isoprenoids (HBIs) are found extensively in marine sediments, but are observed in a limited number of lake sediments. To expand on this record, between 2022 and 2024, we collected lake surface sediment samples from 50 lakes in the United States of America from the Midwest and Northeast. Studied lakes capture a range in climate, water chemistry (e.g., pH, salinity, alkalinity), size, and trophic states. Lakes also vary in their diatom species compositions. Surface sediment samples were collected using a gravity corer or a Bolivia-type square-rod piston corer deployed from a boat. Lake sediments were extracted and analyzed for their HBI compounds and concentrations by gas chromatography mass spectrometry. Lake surface sediments were also analyzed for their carbon and nitrogen concentrations and stable isotopes. Water chemistry profiles were measured in each lake (pH, conductivity, salinity, oxidation reduction potential, dissolved oxygen) using a multiparameter sonde. Water samples from the photic zone were collected using an integrated water sampler (up to 2 m depth) and discrete samples were collected at other depths from a subset of lakes. Integrated water samples were filtered and analyzed to determine if planktonic diatoms produce HBIs. Water samples were analyzed for alkalinity, dissolved inorganic carbon (DIC) concentration, and DIC carbon isotopes
Singlebeam bathymetry processed data (ODOM Hydrotrac echosounder entire dataset, raw data converted to GIS compatible data formats) of MV MUDLUMP during cruise QB1, Quarantine Bay, United States of America
No full textThis dataset contains bathymetric measurements of Quarantine Bay, located in southeastern Louisiana, USA, on the east side of the lower Mississippi River. Data were collected on 29 September 2022 and 2 November 2022 to investigate the geomorphology of Quarantine Bay, the receiving basin for Neptune Pass—the largest new distributary of the Mississippi River. The bathymetric data also contributed to the development of a sediment budget comparing erosion in Neptune Pass to deposition in Quarantine Bay. Surveys were conducted aboard the University of New Orleans research vessel, R/V Mudlump, using an Odom Hydrotrac single-beam echosounder operating at 200 kHz, mounted on a survey pole. A Trimble R8 real-time kinematic (RTK) GPS unit was positioned 1.86 m directly above the transducer to provide precise vertical and horizontal positioning. To account for vessel motion, a Teledyne DMS-25 motion sensor was affixed to the pole to record heave, pitch, and roll. All data were collected and processed using Hypack hydrographic survey software. The survey area extends from 29.432818°N to 29.384789°N latitude and from -89.522387°W to -89.458752°W longitude
Description of lithologic section units of IODP Hole 386-M0084B
No full textDescription of lithologic section units from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The content of this dataset is based on the visual core descriptions (VCD) done by sedimentologists during the onshore phase of expedition 386 (2022-02-14 – 2022-03-15 onboard D/V Chikyu). For digitalization of the information, content of the hand-drawn VCD sheets was transferred into the Drilling Information System database. The present dataset forms the basis for the digital lithologic columns and composite plots archived under the titles "Visual core description of IODP Hole 386-M0084B".
For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.202
Description of lithologic section units of IODP Hole 386-M0088C
No full textDescription of lithologic section units from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The content of this dataset is based on the visual core descriptions (VCD) done by sedimentologists during the onshore phase of expedition 386 (2022-02-14 – 2022-03-15 onboard D/V Chikyu). For digitalization of the information, content of the hand-drawn VCD sheets was transferred into the Drilling Information System database. The present dataset forms the basis for the digital lithologic columns and composite plots archived under the titles "Visual core description of IODP Hole 386-M0088C".
For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.202
Meteorological measurements at Concordia Station in 2014
No full textThe meteorological measurements at Concordia station are part of the BSRN radiation measurements (see Related to references) but were only published in 2025