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Continuous thermosalinograph oceanography along RV MARIA S. MERIAN cruise track MSM134
No full textUnderway temperature and salinity data was collected along the cruise track with two autonomous measurement systems. Usually, the systems are changed after 6 hours. While temperature is taken at the water inlet in about 6.5 m depth, salinity is estimated within the interior measurement container from conductivity and interior temperature. Neither temperature nor salinity calibration was performed. For details to all processing steps see Data Processing Report
PortMeteO ceilometer measurements during METEOR cruise M207
No full textThis dataset describes the non-standard meteorological data collected using the newly developed portable meteorological observatory (PortMeteO) during the METEOR Expedition M207 from Belem, Brazil (Jan 3rd, 2025) to Mindelo, Cabo Verde (Feb 11, 2025). Apart from validating the setup, the main purpose was to observe different properties of Saharan dust outbreaks.
The ceilometer and disdrometer where operated 24/7 while the sun photometers where used at regular intervals during the day whenever clear sky conditions prevailed. Radiosondes where operated during between Jan 27 and Jan 30, 2025 to capture further details on the dust plume associated with a Saharan dust outbreak
End member analysis of grain size distributions, sortable silt and geochemical data from a 2.68 m sediment core (GC-02) collected from the eastern Arabian Sea during 2010, over the past ⁓50,000 years
No full textThis dataset presents end member analysis of grain size distribution, sortable silt and geochemical data derived from a 2.68-meter-long sediment core (Core ID: GC-02), retrieved from the continental slope off Goa, eastern Arabian Sea (15.9947° N, 71.9994° E; water depth: 1850 m) during a sampling campaign in 2010. The core spans approximately the last 50,000 years (Late Quaternary), as determined by an age model based on accelerator mass spectrometry (AMS) radiocarbon dating and Bayesian age-depth modelling. The measurements were conducted at 1–2 cm resolution using a laser diffraction particle size analyzer. The dataset includes five end member loadings (EM1–EM5) extracted through End Member Analysis (EMA) using the AnalySize package in MATLAB and sortable silt. Major and trace element concentrations were determined to calculate elemental ratios such as La/Sc, Sc/Th, and Co/Th. These ratios are included in the dataset to support investigations of sediment provenance and source rock composition. The data were collected to document temporal variations in sediment texture and composition on centennial- to millennial-scale timescales in the eastern Arabian Sea. The dataset is intended to support further research on sediment transport processes, provenance discrimination, and Late Quaternary environmental reconstructions
Plio/Pleistocene benthic stable isotopes (d18O, d13C) of gravity core SO264_28-2
No full textSediment cores from the volcanic Emperor Seamount Chain obtained during RV SONNE cruise SO264 (SONNE-EMPEROR) in August 2018 allow us to reconstruct lateral changes in the subarctic and subtropical gyres in the pelagic North Pacific over the last ~3.4 million years. This dataset comprises benthic stable carbon (δ13C) and oxygen isotope (δ18O) data from gravity core SO264-28-2, which was recovered from Suiko Seamount (44°51.547 N 170°03.997 E) from 1935 m water depth. Measurements were performed on the benthic foraminiferal species Uvigerina peregrina, Cibicidoides wuellerstorfi, and Melonis barleanum. Sampling and analytical studies were carried out from 0.00–7.62 m core depth at ~2 cm spatial resolution. The isotope analyses were performed on a Thermo Scientific MAT 253 mass spectrometer with an automated Kiel IV carbonate preparation device
TOC, TIC, TN and TS contents and stable isotope signatures (δ13C of TOC, δ15N, δ34S) of fine-grained saltmarsh deposits of the barrier island Spiekeroog at the southern North Sea Coast
No full textThe dataset compiles total organic carbon (TOC), total inorganic carbon (TIC), total nitrogen (TN) and total sulfur (TS) contents and stable isotope signatures (δ13C of TOC, δ15N, δ34S) of fine-grained deposits (clay, loam) over sandy subsoils of the saltmarsh of the barrier island Spiekeroog at the southern North Sea coast. Sampling was performed in September 2016 along three transects spanning from the high saltmarsh to the pioneer zone. At each sample point, soil samples were taken from the first 5 cm of the upper part (top samples) and from the deepest 5 cm of the lower part (bottom samples) of the fine-grained deposit. If the fine-grained deposit layer had a thickness < 10 cm, only one bulk soil sample (single samples) was taken for the depth range equal to the deposit thickness. Samples were ground to fine powder. TIC was measured on oven-dried samples coulometrically with an Analytik Jena multi EA 4000 analyzer. The total carbon (TC), TN, and TS were analyzed using a Thermo Scientific Flash EA Isolink Elemental Analyzer. The TOC contents were calculated as the difference between TC and TIC. TOC, TN, and TS contents are reported based on the original dry mass. For isotope analysis, dried and homogenized samples were weighed in tin cups and combusted in a Thermo Scientific Flash EA Isolink Elemental Analyzer, connected to a Thermo Finnigan MAT 253 gas mass spectrometer via a Thermo Conflo IV split interface. The δ13C values of TOC were measured after decalcification of the ground powders with p. a. grade HCl. The TN and δ34S analysis were carried out on a separate aliquot of sample powder. The isotope results are given in the conventional δ-notation
Physical oceanography during RV HEINCKE cruise HE661
No full textConductivity-temperature-depth profiles were measured using a Seabird SBE 911plus CTD during RV HEINCKE cruise HE661. The CTD was equipped with duplicate sensors for temperature (SBE3plus), conductivity (SBE4) and oxygen (SBE43). Additional sensors such as a WET Labs C-Star transmissometer, a WET Labs ECO-AFL fluorometer and an altimeter (PSA-916 Teledyne (Benthos)) were mounted to the CTD. Temperature, conductivity and oxygen sensors are calibrated by the manufacturer once a year before being mounted in January. They are used throughout the year and no post-cruise or in-situ calibration is applied. All other sensors are calibrated irregularly. Data were connected to the station book of the specific cruise as available in the DSHIP database. Processing of the data including removal of obvious outliers followed the procedures described in CTD Processing Logbook of RV HEINCKE (hdl:10013/epic.47427). The processing report for this dataset is linked below
Glacial landforms around the boundary between the central and northern Black Forest, south-western Germany
No full textThe aim of data collection was the reconstruction of the chronology and extent of the Late Pleistocene glaciation around the boundary between the central and northern Black Forest. This research has been undertaken as part of the 'Chronology of the last glaciation of low mountainous areas in Central Europe' project (funded by the German Research Foundation (DFG)). This project is granted to Felix Martin Hofmann (see https://gepris.dfg.de/gepris/projekt/534739108?language=en, last access: 13 June 2025). As a first step towards comprehensive glacier reconstruction, glacial geomorphological mapping according to present-day standard in the field of glacial geomorphology must be undertaken, allowing for the selection of suitable targets for dating campaigns. Previous cirque and moraine mapping led to valuable datasets but the adopted approach for the acquisition of data does not comply with up-to-date approaches in geomorphological mapping. Hence, a mapping campaign was undertaken to critically evaluate previous work on the region of interest to achieve the greatest possible accuracy during mapping. The acquired data represent the base of a manuscript which has been submitted to the Journal of Geomorphology for consideration for publication
Physical oceanography during RV POLARSTERN cruise PS137 at Lucky B site
No full textThis dataset contains CTD (conductivity, temperature, depth probe) data and additional parameters for stations conducted during the cruise PS137. Additionally it contains corresponding navigational data from the ships positioning system. The stations were executed in July 2023 to detect possible hydrothermal plumes at the Lucky B site where hydrothermal activity was suspected at approximately 81° latittude and -3° longitude. The data was measured with a CTD rosette system and processed to correct sensor uncertainties and remove outliers. The original sample frequency of 24 Hz was averaged to 1 Hz
PortMeteO flat plate sampler measurements during METEOR cruise M207
No full textThis dataset describes the non-standard meteorological data collected using the newly developed portable meteorological observatory (PortMeteO) during the METEOR Expedition M207 from Belem, Brazil (Jan 3rd, 2025) to Mindelo, Cabo Verde (Feb 11, 2025). Apart from validating the setup, the main purpose was to observe different properties of Saharan dust outbreaks.
The ceilometer, flat plate sampler and disdrometer where operated 24/7 while the sun photometers where used at regular intervals during the day whenever clear sky conditions prevailed