cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.974237
title: Shipboard ADCP current measurements (75 kHz) during RV SONNE cruise SO306

description: Current velocities of the upper water column along the cruise track of R/V Sonne cruise SO306 were collected by a vessel-mounted 75 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 8.00 m, a blanking distance of 8.00 m, and a total of 100 bins, covering the depth range between 22.0 m and 814.0 m. Attitude data from the ship's motion reference unit were used by the data acquisition software VmDAS internally to convert ADCP beam velocities to geographic coordinates. The Python toolbox OSADCP (version 2.0.0) was used for data post-processing. Acoustic Interferences were identified based on outliers in the ADCP echo intensity data. Echo intensity data were cleaned accordingly and affected velocity cells were flagged to be removed prior ensemble-averaging. The ship's velocity was calculated from position fixes obtained by the Global Navigation Satellite System (GNSS), taking into account lever arms of ADCP transducer and GNSS antenna. Accuracy of the derived water velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data processing included water track calibration of the misalignment angle (-45.0957° +/- 0.8828°) and scale factor (0.9994 +/- 0.0449) of the measured velocities. The velocity data were averaged in time using an average interval of 180 s. Depth cells with ensemble-averaged percent-good values below 25% are marked as 'bad data'.
DOI: 10.1594/pangaea.974239
title: Shipboard ADCP current measurements (38 kHz) during RV SONNE cruise SO306

description: Current velocities of the upper water column along the cruise track of R/V Sonne cruise SO306 were collected by a vessel-mounted 38 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 32.00 m, a blanking distance of 16.00 m, and a total of 50 bins, covering the depth range between 54.0 m and 1622.0 m. Attitude data from the ship's motion reference unit were used by the data acquisition software VmDAS internally to convert ADCP beam velocities to geographic coordinates. The Python toolbox OSADCP (version 2.0.0) was used for data post-processing. Single-ping data were screened for bottom signals and, where appropriate, a bottom mask was manually processed. Acoustic Interferences were identified based on outliers in the ADCP echo intensity data. Echo intensity data were cleaned accordingly and affected velocity cells were flagged to be removed prior ensemble-averaging. The ship's velocity was calculated from position fixes obtained by the Global Navigation Satellite System (GNSS), taking into account lever arms of ADCP transducer and GNSS antenna. Accuracy of the derived water velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data processing included water track calibration of the misalignment angle (-0.0822° +/- 0.7604°) and scale factor (1.0052 +/- 0.0133) of the measured velocities. The velocity data were averaged in time using an average interval of 180 s. Depth cells with ensemble-averaged percent-good values below 25% are marked as 'bad data'.
DOI: 10.1594/pangaea.982624
title: Dissolved rare earth element and yttrium and manganese concentrations in pore water from the Pacific

description: The Neodymium (Nd) isotopic signature (εNd) has been widely used as a proxy to reconstruct past ocean circulation. Recently it has been increasingly questioned which archives can be reliably used to extract authigenic εNd used for the reconstruction of past ocean circulation and under which environmental conditions bottom seawater εNd are altered and the original water mass signature is overprinted. Pore waters of marine sediments are the key environment in which early diagenetic exchange processes between seawater-derived Nd and terrigenous solid phases take place. This dataset contains dissolved rare earth element and yttrium (REY) and manganese (Mn) concentrations of pore water and MUC overlying bottom water from the abyssal Pacific Ocean.Samples were collected during cruises SO239 in 2015, SO240 in 2015, and SO268 in 2019. Pore waters were sampled from MUC liners and for some samples several liners were pooled to acquire sufficient volume for REY analyses. Sediments were centrifuged and the supernatant (i.e., the pore water) and the MUC bottom water were filtered through 0.2 µm pore size by different techniques (polyethersylfone (PES) syringe filters, cellulose acetate (CA) syringe filters, CA membrane filters using a water jet pump). These different filtration methods lead to comparable results. Pore water was preserved by acidification to ~ pH 1.8 with concentrated suprapure or ultrapure HCl.REY and Mn were preconcentrated offline using a seaFAST (Elemental Scientific Inc., Nebraska, USA) with a 10 mL sample loop and using a NOBIAS PA-1 resin column. Samples were spiked with 100 ppt Tm and In to monitor yields and all REY were Tm corrected at the end of the data evaluation. Correction was usually within 5-15%. Preconcentrated samples were measured on a Thermo Fisher Element HR-ICP-MS (GEOMAR, Kiel) coupled to a CETAC Aridus 2 desolvating nebulizer for increased sensitivity and decreased oxide formation.
DOI: 10.1594/pangaea.946360
title: Pollen confidence interval (CI) from IODP Site 353-U1446, Bay of Bengal
DOI: 10.1594/pangaea.988411
title: Late Oligocene (26.2-25.2 Ma) stable oxygen isotopes and Mg/Ca of benthic foraminifera from ODP Site 113-689

description: This dataset features stable oxygen isotopes and Mg/Ca ratios of foraminifera from ODP Site 689, Maud Rise (64.5°S, 3.1°E, 2080 m water depth) spanning the late Oligocene (26.2 to 25.2 Ma). The age model was established following the magnetostratigraphic constraints of Florindo and Roberts (2005, doi:10.1130/B25541.1) and tuned to the age model of IODP Site 342-U1406 (van Peer et al., 2024, doi:10.1038/s41467-024-54186-1). The stable oxygen isotopes (d18O, in ‰ VPDB) were analysed on the benthic foraminiferal species Oridorsalis umbonatus and Cibicidoides mundulus, using a ThermoFinnigan MAT253Plus gas source mass spectrometer equipped with a Thermo Fisher Scientiﬁc Kiel IV carbonate device at Heidelberg University. The isotopic values are reported relative to the Vienna Pee Dee Belemnite (VPDB) standard, through the analysis of an in-house standard (Solnhofen limestone) calibrated to IAEA-603. Mg/Ca ratios analyses were performed on the benthic foraminiferal species Oridorsalis umbonatus, using an Agilent Inductively Coupled Plasma-Optical Emission Spectrometer 720 at Heidelberg University. The reported Mg/Ca values were normalised relative to the ECRM 752-1 standard.
DOI: 10.1594/pangaea.988416
title: Late Oligocene (26.2-25.2 Ma) radiogenic isotopes (Nd and Pb) from ODP Site 113-689

description: This dataset features detrital neodymium (Nd) and authigenic lead (Pb) isotopic compositions from ODP Site 689, Maud Rise (64.5°S, 3.1°E, 2080 m water depth) spanning the late Oligocene (26.2 to 25.2 Ma). The age model was established following the magnetostratigraphic constraints of Florindo and Roberts (2005, doi:10.1130/B25541.1) and tuned to the age model of IODP Site 342-U1406 (van Peer et al., 2024, doi:10.1038/s41467-024-54186-1). Nd was isolated from the detrital fraction of the sediment via column chromatography using 50W-X8 and LN-Spec resins. Nd concentrations were measured by Thermo Scientific iCAP Triple Quadrupole Inductively Coupled Mass Spectrometry (TQ-ICP-MS) at the University of Heidelberg. Isotopic compositions (eNd) were analysed on a Thermo Scientific Neptune Plus Multi-Collector-ICP-MS at GEOMAR Helmholtz Centre for Ocean Research, Kiel. Isotopic data, expressed as eNd (eNd =[(143Nd/144Nd)/0.512638–1] x 10,000), were normalised to a 143Nd/144Nd value of 0.512115 for the JNdi-1 standard. Pb was isolated from the authigenic and (selected) detrital fractions of the sediment by ion-chromatography using AG1-X8 resin. Elemental concentrations were also measured by TQ-ICP-MS at the University of Heidelberg and isotopic compositions on a Thermo Scientific Neptune Plus MC-ICP-MS at GEOMAR Kiel.
DOI: 10.1594/pangaea.985809
title: Multibeam bathymetry raw data (EM 120 echosounder entire dataset) of RV SONNE during cruise SO180

description: Multibeam bathymetry raw data using the ship's own Kongsberg (Simrad) EM 120 multibeam echosounder was almost continuously recorded during RV SONNE cruise SO180. Data was recorded on 27 days between 2004-11-08 and 2004-12-04. This dataset contains a transit survey in the South Pacific Ocean with nine parallel survey lines north of the Gallego Rise and three survey lines on the continental shelf of Chile. The approximate average depth of the entire dataset is around 4200m. The data are archived at the Federal Maritime and Hydrographic Agency of Germany (Bundesamt für Seeschifffahrt und Hydrographie, BSH) and provided to PANGAEA database for data curation and publication. Ancillary sound velocity profiles (SVP) files from the cruise are archived at the BSH, thus SVP files are added to this dataset. However, data analysis of the multibeam raw data revealed that SVP has never been changed during the survey. This publication is conducted within the efforts of the German Marine Research Alliance in the core area 'Data management and Digitalization' (Deutsche Allianz Meeresforschung, DAM). Data are unprocessed and therefore contains incorrect depth measurements (artifacts) without further processing. Note that refraction errors can be expected due to the lack of proper SVP. Overall, it appears that the data quality is rather good since the gridded hillshade data showed relatively few obstacles. Data can be processed e.g. with the open source software package MB-System (Caress et al., 2024).
description: These data should not be used for navigational purposes.Data publishing was realized by Daniel Damaske, MARUM - Center for Marine Environmental Sciences (University of Bremen).
DOI: 10.1594/pangaea.986566
title: Dissolved Nd and Hf isotope compositions and concentrations along with hydrographic parameters in near-bottom water samples from RV Meteor cruise M147

description: All samples were obtained during RV Meteor cruise M147 (April–May 2018), conducted as the official process study GAPR11 within the framework of the international GEOTRACES program.
DOI: 10.1594/pangaea.986567
title: Particulate Nd and Hf isotope compositions in surface sediment samples from RV Meteor cruise M147

description: All samples were obtained during RV Meteor cruise M147 (April–May 2018), conducted as the official process study GAPR11 within the framework of the international GEOTRACES program.
DOI: 10.1594/pangaea.986568
title: Dissolved REE concentrations in near-bottom water samples from RV Meteor cruise M147

description: All samples were obtained during RV Meteor cruise M147 (April–May 2018), conducted as the official process study GAPR11 within the framework of the international GEOTRACES program.
DOI: 10.1594/pangaea.986569
title: Particulate REE and Hf concentrations in surface sediment from RV Meteor cruise M147

description: All samples were obtained during RV Meteor cruise M147 (April–May 2018), conducted as the official process study GAPR11 within the framework of the international GEOTRACES program.
DOI: 10.1594/pangaea.986570
title: Reference material for near-bottom water ansd sediment samples from RV Meteor cruise M147

description: Nd and Hf isotope compositions of secondary standard solution and reference materials for checking the external reproducibility
DOI: 10.1594/pangaea.987146
title: Shipboard ADCP current measurements (38 kHz) during RV MARIA S. MERIAN cruise MSM134

description: Current velocities of the upper water column along the cruise track of R/V Maria S. Merian cruise MSM134 were collected by a vessel-mounted 38 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 32.00 m, a blanking distance of 16.00 m, and a total of 50 bins, covering the depth range between 54.0 m and 1622.0 m. Attitude data from the ship's motion reference unit were used by the data acquisition software VmDAS internally to convert ADCP beam velocities to geographic coordinates. The Python toolbox OSADCP (version 2.1.1) was used for data post-processing. Acoustic Interferences were identified based on outliers in the ADCP echo intensity data. Echo intensity data were cleaned accordingly and affected velocity cells were flagged to be removed prior ensemble-averaging. The ship's velocity was calculated from position fixes obtained by the Global Navigation Satellite System (GNSS), taking into account lever arms of ADCP transducer and GNSS antenna. Accuracy of the derived water velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data processing included water track calibration of the misalignment angle (0.5545° +/- 0.6936°) and scale factor (1.0018 +/- 0.0121) of the measured velocities. The velocity data were averaged in time using an average interval of 60 s. Depth cells with ensemble-averaged percent-good values below 25% are marked as 'bad data'.
DOI: 10.1594/pangaea.987147
title: Shipboard ADCP current measurements (38 kHz) during RV SONNE cruise SO311

description: Current velocities of the upper water column along the cruise track of R/V Sonne cruise SO311 were collected by a vessel-mounted 38 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 32.00 m, a blanking distance of 16.00 m, and a total of 50 bins, covering the depth range between 54.0 m and 1622.0 m. Attitude data from the ship's motion reference unit were used by the data acquisition software VmDAS internally to convert ADCP beam velocities to geographic coordinates. The Python toolbox OSADCP (version 2.2.0) was used for data post-processing. Acoustic Interferences were identified based on outliers in the ADCP echo intensity data. Echo intensity data were cleaned accordingly and affected velocity cells were flagged to be removed prior ensemble-averaging. The ship's velocity was calculated from position fixes obtained by the Global Navigation Satellite System (GNSS), taking into account lever arms of ADCP transducer and GNSS antenna. Accuracy of the derived water velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data processing included water track calibration of the misalignment angle (-0.1499° +/- 0.7124°) and scale factor (1.0020 +/- 0.0115) of the measured velocities. The velocity data were averaged in time using an average interval of 120 s. Depth cells with ensemble-averaged percent-good values below 25% are marked as 'bad data'.
DOI: 10.1594/pangaea.987378
title: Numerical data of nonlinear optimal perturbation growth in pulsatile pipe flow

description: Pulsatile fluid flows through straight pipes undergo a sudden transition to turbulence that is extremely difficult to predict. The difficulty stems here from the linear Floquet stability of the laminar flow up to large Reynolds numbers, well above experimental observations of turbulent flow. This makes the instability problem fully nonlinear and thus dependent on the shape and amplitude of the flow perturbation, in addition to the Reynolds and Womersley numbers and the pulsation amplitude.In our paper, we present an adjoint optimization code, based on a GPU implementation of the pseudo-spectral Navier--Stokes solver nspipe, which incorporates an automatic, optimal check-pointing strategy. We leverage this code to show that the flow is susceptible to two distinct instability routes: One in the deceleration phase, where the flow is prone to oblique instabilities, and another during the acceleration phase with similar mechanisms as in steady pipe flow. Instability is energetically more likely in the deceleration phase. This dataset includes optimal perturbations, their corresponding energy growth over time and post-processing scripts.
DOI: 10.1594/pangaea.987440
title: Shipboard ADCP current measurements (75 kHz) during RV METEOR cruise M209

description: Current velocities of the upper water column along the cruise track of R/V Meteor cruise M209 were collected by a vessel-mounted 75 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 5.0 m below the water line. The instrument was operated in broadband mode (WM1) with a bin size of 5.00 m, a blanking distance of 3.00 m, and a total of 100 bins, covering the depth range between 13.0 m and 508.0 m. Attitude data from the ship's motion reference unit were used by the data acquisition software VmDAS internally to convert ADCP beam velocities to geographic coordinates. The Python toolbox OSADCP (version 2.1.1) was used for data post-processing. Acoustic Interferences were identified based on outliers in the ADCP echo intensity data. Echo intensity data were cleaned accordingly and affected velocity cells were flagged to be removed prior ensemble-averaging. The ship's velocity was calculated from position fixes obtained by the Global Navigation Satellite System (GNSS), taking into account lever arms of ADCP transducer and GNSS antenna. Accuracy of the derived water velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data processing included water track calibration of the misalignment angle (-46.3659° +/- 0.5640°) and scale factor (1.0036 +/- 0.0100) of the measured velocities. The velocity data were averaged in time using an average interval of 60 s. Depth cells with ensemble-averaged percent-good values below 25% are marked as 'bad data'.
DOI: 10.1594/pangaea.987444
title: Shipboard ADCP current measurements (75 kHz) during RV MARIA S. MERIAN cruise MSM134

description: Current velocities of the upper water column along the cruise track of R/V Maria S. Merian cruise MSM134 were collected by a vessel-mounted 75 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 8.00 m, a blanking distance of 8.00 m, and a total of 100 bins, covering the depth range between 22.0 m and 814.0 m. Attitude data from the ship's motion reference unit were used by the data acquisition software VmDAS internally to convert ADCP beam velocities to geographic coordinates. The Python toolbox OSADCP (version 2.1.1) was used for data post-processing. Acoustic Interferences were identified based on outliers in the ADCP echo intensity data. Echo intensity data were cleaned accordingly and affected velocity cells were flagged to be removed prior ensemble-averaging. The ship's velocity was calculated from position fixes obtained by the Global Navigation Satellite System (GNSS), taking into account lever arms of ADCP transducer and GNSS antenna. Accuracy of the derived water velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data processing included water track calibration of the misalignment angle (-47.3049° +/- 0.5750°) and scale factor (1.0021 +/- 0.0105) of the measured velocities. The velocity data were averaged in time using an average interval of 60 s. Depth cells with ensemble-averaged percent-good values below 50% are marked as 'bad data'.
DOI: 10.1594/pangaea.987454
title: Shipboard ADCP current measurements (75 kHz) during RV SONNE cruise SO311

description: Current velocities of the upper water column along the cruise track of R/V Sonne cruise SO311 were collected by a vessel-mounted 75 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 8.00 m, a blanking distance of 8.00 m, and a total of 100 bins, covering the depth range between 22.0 m and 814.0 m. Attitude data from the ship's motion reference unit were used by the data acquisition software VmDAS internally to convert ADCP beam velocities to geographic coordinates. The Python toolbox OSADCP (version 2.2.0) was used for data post-processing. Acoustic Interferences were identified based on outliers in the ADCP echo intensity data. Echo intensity data were cleaned accordingly and affected velocity cells were flagged to be removed prior ensemble-averaging. The ship's velocity was calculated from position fixes obtained by the Global Navigation Satellite System (GNSS), taking into account lever arms of ADCP transducer and GNSS antenna. Accuracy of the derived water velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data processing included water track calibration of the misalignment angle (-45.2061° +/- 0.7743°) and scale factor (0.9975 +/- 0.0131) of the measured velocities. The velocity data were averaged in time using an average interval of 120 s. Depth cells with ensemble-averaged percent-good values below 25% are marked as 'bad data'.
DOI: 10.1594/pangaea.987465
title: Master tracks in different resolutions of MARIA S. MERIAN cruise MSM139, Reykjavik - Reykjavik, 2025-07-24 - 2025-08-26

description: Raw data acquired by position sensors on board RV MERIAN during expedition MSM139 were processed to receive a validated master track which can be used as reference of further expedition data. During MSM139 the motion reference unit Kongsberg SeaTex AS MRU-5 combined with Kongsberg SeaTex AS Seapath 320 and the GPS receivers Trimble SPS855 and SAAB R4 were used as navigation sensors. Data were downloaded from DAVIS SHIP data base (http://dship.bsh.de) with a resolution of 1 sec. Processing and evaluation of the data is outlined in the data processing report. Processed data are provided as a master track with 1 sec resolution derived from the position sensors' data selected by priority and a generalized track with a reduced set of the most significant positions of the master track.
description: This dataset contains the master track in 10 min resolution, for other resolutions please see "Other version" references.
DOI: 10.15468/dl.3retmg
title: Occurrence Download

description: A dataset containing 841 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Guinea",
 "DatasetKey is EOD – eBird Observation Dataset",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Scolopacidae",
 "Year 2002-2025"
 ]
}

 The dataset includes 841 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000450-260108223611665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.