cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.971340
title: Stable isotope values and ZooMS markers in bone collagen of animal bones from the Pleistocene hyena den in Perspektywiczna Cave, Poland

description: The dataset presents stable carbon and nitrogen isotope ratios (δ13C and δ15N) and ZooMS peptide markers obtained for bone collagen of Late Pleistocene mammals from the Pleistocene hyena den in Perspektywiczna Cave (Poland) (https://doi.org/10.1017/RDC.2023.89). The bones were collected from cave clastic deposits, dated to MIS 3 (middle Weichselian or Weichselian Interpleniglacial) period, during archaeological excavations in 2013–2019 and are stored at the Institute of Archaeology, Nicolaus Copernicus University in Toruń (Poland). Data was collected for paleoecological purposes, for assessing the prey-to-hyena collagen-to-collagen Δ13C and Δ15N trophic discrimination factor (TDF).Isotope data are presented as δ ('delta') notation, in ‰ (per mil) vs. international reference scale (VPDB for carbon and air nitrogen for nitrogen). Collagen quality data are also presented: collagen yield (milligrams of collagen per gram of bone, in mg/g), weight percent of carbon in collagen (%Ccoll., in wt%), weight percent of nitrogen in collagen (%Ncoll., in wt%), and atomic C:N ratio. The collagen was extracted following the classic R. Longin's ABA (acid-base-acid) method (https://doi.org/10.1038/230241a0), not ultrafiltered (details are presented in https://doi.org/10.1017/RDC.2023.89). Elemental analysis and isotopic measurements were performed in 2022 at facilities of the Geoecology Working Group of the University of Tübingen (Germany) using a CHNOS Vario Isotope Cube EA (elemental analyzer, from Elementar) in conjunction with an IsoPrime visION IRMS (isotope ratio mass spectrometer, from Elementar). ZooMS data are presented as occurrence of selected peptide markers (in particular: a1 508, a2 978, a2 978(+Hyp), a2 484, a2 502, a2 292, a2 793, a2 454, a1 586, a1 586(+Hyp), a2 757, and a2 757(+Hyp)). The detected peaks that is typical for given markers are presented as their m/z (mass to charge ratio). The taxonomic identification based on the presence of characteristic peptide markers is also provided. The taxon identified as Bovidae/Cervidae* includes some bovid and some cervid species (impala, bharal, mouflon, saiga, gazelle, oribi, steenbok, hartebeest, blue wildebeest, tsessebe, hirola, Pere Davids deer, red deer, elk, fallow deer, and Chital deer). Additional data about the samples are also presented, such as stratigraphic context, taxonomy, anatomy, taphonomy, and chronology. ZooMS analysis was performed at BioArCh, University of York, in 2021. Each sample was analyzed on a Bruker MALDI ToF MS (matrix assisted laser desorption ionisation time of flight mass spectrometry). The spectra were analyzed using mMass, an open-source mass spectrometry tool (https://doi.org/10.1021/ac100818g).
DOI: 10.1594/pangaea.902619
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during March, 2014
DOI: 10.1594/pangaea.971344
title: ZooMs MALDI spectra analysis in bone collagen of animal bones from the Pleistocene hyena den in Perspektywiczna Cave, Poland

description: Dataset is a collection of MALDI ToF spectra files in a text format. These are supportive files for the dataset https://doi.pangaea.de/10.1594/PANGAEA.971340. Each file is a MALDI ToF-generated result for one sample of bone collagen of Late Pleistocene mammals from the Pleistocene hyena den in Perspektywiczna Cave (Poland) (https://doi.org/10.1017/RDC.2023.89). The bones were collected from cave clastic deposits, dated to MIS 3 (middle Weichselian or Weichselian Interpleniglacial) period, during archaeological excavations in 2013–2019 and are stored at the Institute of Archaeology, Nicolaus Copernicus University in Toruń (Poland). Data was collected for paleoecological purposes, for assessing the prey-to-hyena collagen-to-collagen Δ13C and Δ15N trophic discrimination factor (TDF). Each file's name relates to the sample ID presented in column 20 of the https://doi.pangaea.de/10.1594/PANGAEA.971340 dataset. ZooMS analysis was performed at BioArCh, University of York, in 2021. Each sample was analyzed on a Bruker MALDI ToF MS (matrix assisted laser desorption ionisation time of flight mass spectrometry). The spectra were analyzed using mMass, an open-source mass spectrometry tool (https://doi.org/10.1021/ac100818g).
description: The first column in the text files is the mass/charge (m/z) of the peptide (measured in Daltons - Da) and the second column is the intensity measured in arbitrary units (au).
DOI: 10.1594/pangaea.908991
title: Wave measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during April, 2016
DOI: 10.1594/pangaea.933103
title: Diatom record of the Sobo-Sise Yedoma cliff (eastern Lena Delta)
DOI: 10.1594/pangaea.902194
title: Silicon isotopes in Arctic and sub-Arctic glacial meltwaters

description: This data product contains dissolved and amorphous particulate silicon concentrations and isotopic compositions, and ancillary data (discharge, conductivity, suspended particulate matter, pH, major ion data) for glacial meltwaters collected from Pan Arctic and Subarctic glacial catchments.
description: Supplement to: Hatton, Jade Elizabeth; Hendry, Katharine R; Hawkings, Jonathan; Wadham, Jemma; Opfergelt, Sophie; Kohler, Tyler; Yde, Jacob; Stibal, Marek; Žárský, Jakub (2019): Silicon isotopes in Arctic and sub-Arctic glacial meltwaters: the role of the subglacial weathering in the silicon cycle. Proceedings of the Royal Society A-Mathematical Physical and Engineering Sciences, 475(2228)
DOI: 10.15468/dl.a2d3gq
title: Occurrence Download

description: A dataset containing 2018 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Heard Island and McDonald Islands",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Plantae"
 ]
}

 The dataset includes 2018 records from 26 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0029807-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.909037
title: Current measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during March, 2019
DOI: 10.1594/pangaea.961120
title: Pollution mask for the continuous corrected particle number concentration data in 1 min time resolution measured in the Swiss aerosol container using a whole air inlet during MOSAiC 2019/2020

description: This dataset contains particle number concentrations and a pollution flag in 1 min time resolution. It is derived by the pollution detection algorithm (PDA, doi:10.5281/zenodo.5761101) based on the corrected particle number concentration data of the CPC3776 measured during the year-long MOSAiC expedition from October 2019 to September 2020. With pollution, we refer to emission from the exhaust of the ship stack, snow groomers, diesel generators, ship vents, helicopters and other (primary pollution, not circulated, nor transported). Pollution hence reflects locally emitted particles and trace gases, which are not representative of the central Arctic ambient concentrations. The PDA identifies and flags periods of polluted data in the particle number concentration dataset five steps. The first and most important step identifies polluted periods based on the gradient (time-derivative) of a concentration over time. If this gradient exceeds a given threshold, data are flagged as polluted. Further pollution identification steps are a simple concentration threshold filter, a neighboring points filter (optional), a median and a sparse data filter (optional). The detailed methodology of the derivation of the pollution flag is described in Beck et al. (2022).
description: This dataset contains a pollution flag in 1 min time resolution and the corresponding particle number concentration data. The data columns include Event, Time, Latitude, Longitude, Particle number concentration and a pollution flag to indicate polluted periods (0=not polluted, 1=polluted). The pollution flag is derived from the Pollution Detection Algorithm (PDA), a python-based open access script to automatically detect contamination in remote atmospheric time series Beck et al. (2022). The following parameters were used in the PDA script to derive this pollution flag:• a= 0.35 cm-3s-1• m = 0.58 s-1• avg_time = 60 s• upper_threshold: 104 cm-3• lower_threshold: 60 cm-3• neighboring points filter: Yes/on• median deviation factor: 1.4• sparse window: 30• sparse threshold: 6Remark_1: The corrected particle number concentration may still contain some minor artefacts and a critical review of the data by an expert is required. The pollution flag is based on the aforementioned parameters. If needed, the PDA can be tuned to be stricter. The decision whether a single data point is affected by pollution is up to the user and requires an expert review.Remark_2: This pollution mask can be applied to other particle and trace measurements obtained during MOSAiC. Please see Beck et al. (2022), for a detailed discussion.
DOI: 10.1594/pangaea.911441
title: Results of the cold-water sponge Halichondria panicea exposure experiment to Benzo-A-Pyrene

description: In this study, inter-tidal cold-water sponge Halichondria panicea samples were exposed to Benzo-A-pyrene for 48h (accumulation phase) and then left to recover for 13 days in clean seawater (depuration phase). Tissue samples were collected at multiple time points during the accumulation phase to conduct qPCR targeting several genes of interest. Tissue samples were also collected during the accumulation and depuration phases to determine concentration of hydrocarbon in the sponge tissue. The files provided here detail (1) the hydrocarbon data determined by GC/MS analysis and (2) the sponge log fold change data for four genes of interest derived by qPCR.
DOI: 10.1594/pangaea.902653
title: CTD (SBE 16 PLUS V2) measurements collected at the OBSEA underwater observatory during October, 2015
DOI: 10.1594/pangaea.902733
title: CTD (SBE 16 PLUS V2) measurements collected at the OBSEA underwater observatory during April, 2018
DOI: 10.1594/pangaea.956371
title: KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: export flux and sinking particle properties

description: Export data from the mesocosm experiment conducted in the Canary Islands in autumn 2019. Sinking matter was collected in 2-days intervals over the course of 33 days from the mesocosm sediment traps (4 m depth). Sediment samples were processed and subsampled for duplicate measurements of particulate organic carbon (POC), nitrogen (PON), phosphorus (POP) and biogenic silica (BSi). Elemental mass fluxes in µmol L-1 were calculated by normalizing to the mesocosm volume. They were then either normalized to the time between sample collection (48 h) to obtain daily mass fluxes (µmol L-1 d-1), or added up to obtain cumulative mass fluxes (µmol L-1). Another set of sediment subsamples was analyzed for particle sinking velocities, sizes and porosities (bidaily) and microbial remineralization rates (every 4 days).
DOI: 10.1594/pangaea.967168
title: North Atlantic seawater bottle data collected from CTD during RRS Discovery cruise DY081, extended version

description: Biogeochemical cycling of nutrients and marine primary productivity off the Greenland coast are subject to significant changes due to climate warming and accelerated melting of glaciers. The role of meltwater input on nutrient cycling and phytoplankton production was evaluated through CTD measurements, nutrient and isotope analyses on seawater samples collected from the south-west Greenland margin and the Labrador Sea during the DY081 research expedition which took place in July 2017. We particularly focused on examining the meltwater input of nutrient silicon and its utilization by diatoms, through the analyses of seawater δ30Si (using a MultiCollector-Inductively Coupled Plasma-Mass Spectrometer), amorphous silica particulate concentration, and diatom biogenic silica production (using the radioisotope 32Si tracer).
DOI: 10.1594/pangaea.973176
title: Coefficient of friction measurements on powdered gouge of ash and scoria samples from Anak Krakatau, Sunda Strait, Indonesia (Table 2)

description: We performed laboratory friction experiments on simulated fault gouges of ash and scoria samples from Anak Krakatau (Sunda Strait, Indonesia), representing the two main lithologies that can be found at Anak Krakatau and measured the velocity-dependence of friction in velocity-step tests. Moreover, we have directly measured cohesion on the samples of powdered gouge of ash and scoria. The experiments were carried out using a single-direct shear device at room temperature. For the shearing tests, all samples were crushed and sieved to a grain size &lt; 125 µm. The ash sample was tested under fluid-saturated conditions (3.5 % NaCl brine) and the scoria sample was tested under fluid-saturated (3.5 % NaCl brine) and room dry conditions. The experiments were carried out at two different effective normal loads, 2.5 and 8 MPa, to simulate different depths of a proto shear plane within the volcanic edifice.
DOI: 10.1594/pangaea.973213
title: Velocity-dependent friction measurements, input parameters for forward modeling on powdered gouge of ash and scoria samples from Anak Krakatau, Sunda Strait, Indonesia (Table 3)

description: We performed laboratory friction experiments on simulated fault gouges of ash and scoria samples from Anak Krakatau (Sunda Strait, Indonesia), representing the two main lithologies that can be found at Anak Krakatau and measured the velocity-dependence of friction in velocity-step tests. Moreover, we have directly measured cohesion on the samples of powdered gouge of ash and scoria. The experiments were carried out using a single-direct shear device at room temperature. For the shearing tests, all samples were crushed and sieved to a grain size &lt; 125 µm. The ash sample was tested under fluid-saturated conditions (3.5 % NaCl brine) and the scoria sample was tested under fluid-saturated (3.5 % NaCl brine) and room dry conditions. The experiments were carried out at two different effective normal loads, 2.5 and 8 MPa, to simulate different depths of a proto shear plane within the volcanic edifice.
DOI: 10.1594/pangaea.973214
title: Velocity-dependent friction measurements, inverse modeling results (aging law) on powdered gouge of ash and scoria samples from Anak Krakatau, Sunda Strait, Indonesia (Table 4)

description: We performed laboratory friction experiments on simulated fault gouges of ash and scoria samples from Anak Krakatau (Sunda Strait, Indonesia), representing the two main lithologies that can be found at Anak Krakatau and measured the velocity-dependence of friction in velocity-step tests. Moreover, we have directly measured cohesion on the samples of powdered gouge of ash and scoria. The experiments were carried out using a single-direct shear device at room temperature. For the shearing tests, all samples were crushed and sieved to a grain size &lt; 125 µm. The ash sample was tested under fluid-saturated conditions (3.5 % NaCl brine) and the scoria sample was tested under fluid-saturated (3.5 % NaCl brine) and room dry conditions. The experiments were carried out at two different effective normal loads, 2.5 and 8 MPa, to simulate different depths of a proto shear plane within the volcanic edifice.
DOI: 10.1594/pangaea.902623
title: CTD (SBE 16 PLUS V2) measurements collected at the OBSEA underwater observatory during July, 2014
DOI: 10.1594/pangaea.942620
title: Statistics of the recurrence rate analysis for U1308 benthic δ18O, U1308 bulk carbonate δ18O and NGRIP δ18O

description: Statistics of the recurrence rate analysis for U1308 benthic δ18O, U1308 bulk carbonate δ18O (Hodell and Channell, 2016) and NGRIP δ18O (Rasmussen et al., 2014). The RR prominence higher than RR standard deviation are considered as major transitions and labeled with a red cross on Figs. 2a, 3a and 4c (Rousseau, Denis-Didier; et al., 2022). RR prominence slightly lower to the standard variation are identified with an asterisk and labeled with pink cross on the same figures.RR prominence significance: # above the standard deviation (sd), $ slightly lower than the standard deviation. The window size of the statistical analysis is also given for every record in column 2.
DOI: 10.1594/pangaea.908933
title: Wave measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during June, 2012
DOI: 10.1594/pangaea.902667
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during March, 2016
DOI: 10.1594/pangaea.908929
title: Wave measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during April, 2012
DOI: 10.1594/pangaea.911157
title: Shapefiles for ATLAS work in Good Environmental Status in Faroe-Shetland Channel

description: Shapefiles for the ATLAS work in Good Environmental Status in the Faroe-Shetland Channel. These shapefiles support a GIS product which shows the environmental status for the total area under examination, the designated Spatial Assessment Units (SAUs), the habitats and ecosystem components. Environmental status was assessed using the Nested Environmental Status Assessment Tool (NEAT).
DOI: 10.1594/pangaea.953826
title: Environmental conditions inside and outside the CO2 vent (Ischia, Italy) before and during a reciprocal transplant experiment with Platynereis spp. in September 2013

description: Platynereis spp. were collected via snorkelling or scuba from either inside (40°43′53″N, 13°57′47″E) (stations A1-A3) or outside (40°43'33.33"N, 13°57'36.38"E and 40°44′48″N, 13°56′39″E) (stations C1-C3) the carbon dioxide (CO2) vent on the island of Ischia (Italy) and used in a reciprocal transplant experiment between 04/09/2013 and 16/09/2013. The effect of exposure to high or low partial pressures of CO2 (pCO2) conditions on the proteome and metabolome (metabolome, and lipidome) of worms from different pCO2 regimes was investigated to understand the effect of exposure to different pCO2 conditions on the cellular physiological response. Before and during the transplant experiment water samples were taken to characterise the physio-chemical parameters of sea water used when exposing the worms to: (i) low pCO2 conditions (‘control’ stations C1, C2 and C3) and (ii) high pCO2 conditions (‘acidified’ stations A1, A2, A3). Salinity, temperature, pH NBS (Mettler-Toledo pH meter, Beaumont Leys, UK), total alkalinity (TA) (AS-ALK2, Apollo SciTech, Bogart, USA), dissolved inorganic carbon (DIC), carbon dioxide partial pressure (pCO2), bicarbonate and carbonate ion concentration ([HCO3–] and [CO32–), calcite and aragonite saturation state (Ωcal and Ωara) are provided.
DOI: 10.1594/pangaea.972725
title: 2D multichannel seismic reflection raw data (entire dataset) of RV SONNE during cruise SO299/2

description: The raw 2D multichannel seismic reflection data in this project were acquired during expedition SO299/2 offshore Krakatau using a single GI Gun. The data were recorded with a 48-channel streamer. The Krakatau survey aimed to shed light on the erupted volumes of the disastrous 1883 eruption and decipher the processes leading to a damaging tsunami. The data comprise 381 line kilometers and are provided in raw format (SEG-D) and associated standardized metadata. Detailed information on the acquisition can be found in the SO299/2 cruise report (https://doi.org/10.48433/cr_so299_2). In addition, a technical report is provided with this data set.
description: We are grateful to the Government of the Republic of Indonesia for granting permission to work in Indonesia's Exclusive Economic Zone. Our special thanks go to BRIN (Badan Riset dan Inovasi Nasional (Indonesia)), especially Dr.-Ing. Semeidi Husrin (Head of Coastal Engineering & Disaster Mitigation) and the German Embassy in Jakarta, especially Annisa Fitria (Head of Science & Technology Division), for obtaining research and other permits and for their help around the RV SONNE port activities.The Federal Ministry of Education and Research (BMBF) funded the project under grant (03G0299TA) with extra funding and the use of equipment from GEOMAR.Further additional funding has been provided through the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No. 948797).
DOI: 10.1594/pangaea.902679
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during June, 2017
DOI: 10.1594/pangaea.911409
title: ATLAS work on Good Environmental Status across 9 study areas in the northeast Atlantic

description: This data is showing the outcomes of the analysis done by ATLAS researchers on the environmental status of nine deep-sea areas in the northeast Atlantic. These results are part of the ATLAS work facilitating the implementation of the European Commission's Marine Strategy Framework Directive in the deep waters of the North Atlantic. The nine study areas that were examined are: 1) LoVe Ocean Observatory, 2) Faroe-Shetland Channel, 3) Reykjanes Ridge, 4) Rockall Bank, 5) Mingulay Reef Complex, 6) Porcupine Seabight, 7) Bay of Biscay, 8) Azores, 9) Gulf of Cádiz. The analyses were carried out using the Nested Environmental status Assessment Tool (NEAT). The environmental status outcomes are shown for the total study area, the designated spatial assessment units (SAUs), the ecosystem components ("Benthic invertebrates", "Fish", "Benthos") and the habitats ("Aggregations of L. pertusa & M. oculata on soft sediments", "Aggregations of sea pens & alcyonaceans on soft sediments", "Aggregations of L. pertusa & M. oculata on hard substrates", "Aggregations of Antipatharians and alcyonaceans on hard substrates", "Benthic", "Rocky", "Sedimentary").
DOI: 10.1594/pangaea.903286
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during October, 2017
DOI: 10.1594/pangaea.937573
title: Dissolved organic carbon (DOC) concentration in the surface water of the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019

description: Water samples were filtered through 0.7 µm GF/F filter, and acidified with 25 µL Suprapur HCl (10 M) on the same day of sampling. DOC samples were stored and kept at 4°C in the dark during transport until further analysis. Concentration of DOC was measured using high-temperature catalytic oxidation (TOC-VCPH, Shimadzu) at the Alfred-Wegener-Institute (AWI) Potsdam, Germany. Blanks (Milli-Q water) and certified reference standards (Battle-02, Mauri-09 or Super-05 from the National Laboratory for Environmental Testing, Canada) were measured for quality control.
description: Empty cells = NA
DOI: 10.1594/pangaea.937581
title: Particle absorption (aP) in the surface water of the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019

description: Absorbance of particles retained on GF/F (0.7 µm) filters was measured using a Varian Cary 100 spectrophotometer equipped with an integrated sphere. Absorbance and reflectance spectra were measured by placing a sample filter in front and back of an integrating sphere, respectively (so-called Transmittance-Reflectance or T-R method; Tassan & Ferrari 1995; doi:10.4319/lo.1995.40.8.1358). An appropriate beta factor specific to the geometry of the instrument was used to calculate absorption coefficients of particles (Tassan & Ferrari 2002; doi:10.1093/plankt/24.8.757).
description: Empty cells = NA