cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.942777
title: High-resolution impurity data from the GRIP ice core

description: The ice core was drilled during the GRIP project in 1989-1992 at the Summit of the Greenland ice sheet. The length is 3025 m. Present-day accumulation 0.23 m ice/yr. Position 72.57N 37.62W, 3232 m a.s.l.. Impurities were measures as described in Fuhrer et al. (1993). The Holocene data were used for annual-layer identification during the making of the GICC05 and GIC21 time scales, but data are also provided over GS-1 (roughly equivalent to the Younger Dryas) and GI-1 (roughly equivalent to the Bølling-Allerød period). Data from deeper sections exist. Corresponding data author: Hubertus Fischer, Climate and Environmental Physics, Physics Institute, and Oeschger Centre for Climate Change Research, University of Bern, hubertus.fischer@unibe.ch.
DOI: 10.1594/pangaea.942937
title: DYE-3 18C ice core detailed water isotope data

description: The shallow core 18C was drilled to 110 m 36 km upstream from DYE-3. Position 65.03N 44.39W. The delta-18O data were all measured immediately after the 1984 drilling operation. The delta-18O data uncertainty is 0.1 per mil. The samples are cut to achieve an average resolution of 8 samples per year, i.e. the depth resolution increases with depth (as annual layers thin). All sample depths are for the bottom of each sample.
DOI: 10.1594/pangaea.942945
title: DYE-3 ice core detailed water-isotope data

description: The detailed water isotope data consists of 2 sections of delta-18O data and 2 sections of delta-D data. The cores was drilled to bedrock 1979-1981 during the GISP program. Position: 65.18N, 43.83W, 2480 m a.s.l.. The delta-18O data were all measured immediately after the drilling (1979-81), while the delta-D data were measured in 2004 specifically for the GICC05 dating effort. The delta-18O data uncertainty is 0.1 per mil, while the delta-D data uncertainty is 0.5 per mil. All sections are cut to achieve an average resolution of 8 samples per year, i.e. the depth resolution increases with depth (as annual layer thicknesses thin). The cutting scale for the d18O data generally produced a higher resolution than intended, while the delta-D cutting scale was adjusted to be more precise in achieving 8 samples per year. All sample depths are given for the bottom of each sample.
DOI: 10.1594/pangaea.942944
title: Electrical conductivity measurements (ECM) from the GRIP ice core, central Greenland

description: ECM data from the GRIP core obtained with the technique described by Hammer (1980). People involved in the measurements include Henrik B. Clausen, Dorthe Dahl-Jensen, Christine Hvidberg, Niels Gundestrup, Steffen B. Hansen, P. M. Kristinsdottir, Jakob Schwander, and J.P. Steffensen. Data were recorded in parallel on paper in high resolution and digitally in 1 cm resolution. The main core was drilled during the GRIP project in 1989-1992 at the Summit of the Greenland ice sheet. The length is 3025 m. Present-day accumulation 0.23 m ice/yr. Data from the top 101.3 m comes from the S3 shallow core, but the two data sets have been fully integrated on a common depth scale. The data are given as H+ ion concentration versus depth (measured from the undisturbed surface in 1989), but the absolute calibration (H+ = 0.045 I^1.73) must be considered tentative. For more information on the measurements and calibration, see Hammer 1980 and Clausen et al. (1995). Please cite the Hammer (1980), Clausen et al. (1995), and Rasmussen et al. (2023) when using this data file.
DOI: 10.1594/pangaea.942472
title: Bryozoa diversity and abundance in Phyllophora crispa (Rhodophyta) mats and Posidonia oceanica meadows near Giglio Island (Tyrrhenian Sea, Italy)

description: Dataset on the epibenthic abundance of Bryozoa on P. crispa and P. oceanica habitats in the NW Mediterranean Sea (Giglio Island, Italy). Samples were obtained via SCUBA diving in summers 2018 and 2019 and analyzed by microscopic determination and counting of specimens. Sampling was part of a larger project on the diversity of the epiphytic invertebrate community on P. crispa mats in the area. The dataset includes details on the sampling efforts, diversity indices (Shannon (H'), Pielou (J')), and density of colonies m-². The numbers of individuals per family were counted on the subsamples. Densities of bryozoa (Dens) were extrapolated using wet weights of the sub- and main sample, as well as the measured surface area of the subsample. Detailed descriptions of the calculations can be found in the corresponding publication (Rossbach et al. (in review)).
DOI: 10.1594/pangaea.942843
title: Electrical conductivity measurements (ECM) from the DYE-3 4B ice core, Greenland

description: ECM data of the DYE-3 cores obtained with the technique described by Hammer (1980). People involved in the measurements include Henrik B. Clausen, Dorthe Dahl-Jensen, Niels Gundestrup and Steffen B. Hansen, Jakob Schwander, and J.P. Steffensen. Data were originally recorded on paper in high resolution but was digitized by hand in 1 cm resolution by laboratory assistant Anita Boas. The data set includes data from the DYE-3 main core and from two shallow cores, known as 4B and 18C, drilled upstream of the main drilling site. Main core: Drilled to bedrock 1979-1981 during the GISP program. Position: 65.18N, 43.83W, 2480 m a.s.l.. Core 4B: Drilled to 174 m 8 km upstream from DYE-3. Exact position not available. Core 18C: Drilled to 110 m 36 km upstream from DYE-3. Position 65.03N 44.39W. The data are given as H^+ ion concentration versus depth (measured from the undisturbed surface at the year where drilling started), but the absolute calibration must be considered tentative. For more information on the measurements and calibration, see Hammer 1980. Please cite the Hammer (1980), Neftel et al. (1985), and Rasmussen et al. (2023) when using this data file.
DOI: 10.1594/pangaea.942847
title: Electrical conductivity measurements (ECM) from the DYE-3 18C ice core, Greenland

description: ECM data of the DYE-3 cores obtained with the technique described by Hammer (1980). People involved in the measurements include Henrik B. Clausen, Dorthe Dahl-Jensen, Niels Gundestrup and Steffen B. Hansen, Jakob Schwander, and J.P. Steffensen. Data were originally recorded on paper in high resolution but was digitized by hand in 1 cm resolution by laboratory assistant Anita Boas. Main core: Drilled to bedrock 1979-1981 during the GISP program. Position: 65.18N, 43.83W, 2480 m a.s.l.. Core 4B: Drilled to 174 m 8 km upstream from DYE-3. Exact position not available. Core 18C: Drilled to 110 m 36 km upstream from DYE-3. Position 65.03N 44.39W. The data are given as H^+ ion concentration versus depth (measured from the undisturbed surface at the year where drilling started), but the absolute calibration must be considered tentative. For more information on the measurements and calibration, see Hammer 1980. Please cite the Hammer (1980), Neftel et al. (1985), and Rasmussen et al. (2023) when using this data file.
DOI: 10.1594/pangaea.942849
title: Electrical conductivity measurements (ECM) from the DYE-3 ice core, Greenland

description: ECM data of the DYE-3 cores obtained with the technique described by Hammer (1980). People involved in the measurements include Henrik B. Clausen, Dorthe Dahl-Jensen, Niels Gundestrup and Steffen B. Hansen, Jakob Schwander, and J.P. Steffensen. Data were originally recorded on paper in high resolution but was digitized by hand in 1 cm resolution by laboratory assistant Anita Boas. The data set includes data from the DYE-3 main core and from two shallow cores, known as 4B and 18C, drilled upstream of the main drilling site. Main core: Drilled to bedrock 1979-1981 during the GISP program. Position: 65.18N, 43.83W, 2480 m a.s.l.. Core 4B: Drilled to 174 m 8 km upstream from DYE-3. Exact position not available. Core 18C: Drilled to 110 m 36 km upstream from DYE-3. Position 65.03N 44.39W. The data are given as H^+ ion concentration versus depth (measured from the undisturbed surface at the year where drilling started), but the absolute calibration must be considered tentative. For more information on the measurements and calibration, see Hammer 1980. Please cite the Hammer (1980), Neftel et al. (1985), and Rasmussen et al. (2023) when using this data file.
DOI: 10.1594/pangaea.945447
title: High-resolution dust concentrations from the NGRIP2 ice core

description: A laser microparticle detector used in conjunction with continuous sample melting provided a more than 1500 m long record of particle concentration and size distribution of dust in the NGRIP2 ice core at high resolution, covering continuously the depth range 1404.7–2930.4 m (Ruth, 2002). The data set of dust concentrations has been made publicly available in low resolution at earlier occasions, but we here provide the full record of dust particle counts in millimetre resolution. The data are supplied on a depth scale, and were used as such in the construction of the GICC05 time scale (Rasmussen et al., 2006). The data cover approximately 10,280–107,600 years before 2000 CE (denoted b2k) on the GICC05modelext age model. The melting system is common for the dust data presented here and several other records of impurities documented thoroughly by Erhardt et al. (2022). The measurement technique is described in detail in Ruth (2002). Data were previously released in 1.65 m depth resolution in connection with the work of Ruth et al. (2003), archived at https://doi.org/10.1594/PANGAEA.107444, and in 0.55 m resolution with the work of Ruth et al. (2007) archived at https://doi.org/10.1594/PANGAEA.587836. Please see these sources for a full description of the measurement techniques. The data file released here is in millimeter resolution, but the shortest features that can be safely detected in the data have a peak-to-peak separation of 1-2 centimeters (Erhardt et al., 2022). There could be uncertainties of a similar magnitude in the depth registration, arising e.g. from difficulties in precise co-registration between the different measurements subsystems. This means that the observed relative phasing between dust and soluble impurity records on annual and sub-annual scales (even from the same core and melter setup) should be interpreted with extreme caution. Furthermore, around core breaks there is an increased risk of contamination and imperfect depth assignments.
DOI: 10.1594/pangaea.960471
title: Microbial cell abundance in sinking diatom aggregates incubated in rotating pressure and control tanks

description: The effect of increasing hydrostatic pressure on the microbial degradation, the organic matter composition, and the microbiome of 'marine snow' particles was studied in laboratory incubation experiments. Model aggregates were produced from the diatom Skeletonema marinoi and the natural microbial community of surface seawater collected in the Kattegat. The aggregates were incubated individually in rotating pressure and control tanks to keep them suspended during 20-day incubations in the dark and at 3°C. In the pressure tanks, hydrostatic pressure was increased at increments of 5 MPa per day to finally reach 100 MPa. This pressure scheme simulates the descent of diatom aggregates from the surface ocean down into a 10-km deep hadal trench. In the control tanks, pressure was always left at atmospheric level.The abundance of diatoms, bacteria, and viruses in sinking diatom aggregates was determined by microscopic (diatoms) and flow-cytometric cell counts (bacteria and viruses) in samples retrieved every 4 days throughout the 20-day incubation experiment.
DOI: 10.1594/pangaea.962756
title: Density of the EastGRIP S6 shallow core

description: We here report measured densities from a combination of records from the EastGRIP ice-core site. The data come from a trench and two ice cores: the shallow EGRIP-S6 core and the deep main core of the project. Based on these data, we parametrize the density as a function of depth, allowing us to provide a standard transfer function between true depth and ice-equivalent depth which is consistent with the EGRIP density measurements. EGRIP density data are only available to 117 m depth, at which depth the density is about 900 kg/m^3 and the difference between true depth and ice-equivalent depth is about 22 m. The density and overburden profiles have been extended below this depth and all the way to 1200 m in order to provide a convenient, continuous and (mostly) smooth transfer function between true depth and ice-equivalent depth. See PDF file provided under 'Documentation' for full description of data and parametrization.
description: Data from shallow core EGRIP-S6 (4" diameter). Averages for 1-meter resolution. Above 12 m depth, the firn core segments have a lot of scratches and thus, the value calculated by weighing the cores will underestimate the density. Therefore, we only use data from 12 meters and downwards for the fitting. Accuracy below 12 meters' depth: Precision of density measurements is estimated to about 1% or better: The main limiting factors are variations in core diameter (from the drilling) and small missing bits at breaks and around core catchers.
DOI: 10.1594/pangaea.962757
title: Density of snow trench samples from the EastGRIP site

description: We here report measured densities from a combination of records from the EastGRIP ice-core site. The data come from a trench and two ice cores: the shallow EGRIP-S6 core and the deep main core of the project. Based on these data, we parametrize the density as a function of depth, allowing us to provide a standard transfer function between true depth and ice-equivalent depth which is consistent with the EGRIP density measurements. EGRIP density data are only available to 117 m depth, at which depth the density is about 900 kg/m^3 and the difference between true depth and ice-equivalent depth is about 22 m. The density and overburden profiles have been extended below this depth and all the way to 1200 m in order to provide a convenient, continuous and (mostly) smooth transfer function between true depth and ice-equivalent depth. See PDF file provided under 'Documentation' for full description of data and parametrization.
description: Dataset of averaged liner densities calculated from liners retrieved in 2016 from two 5 m deep and 50 m long trenches located approx. 500 m away from EGRIP main dome sampled with snow liners every 5 m (in total 20 liners per depth interval). 5 points covering the upper 5 m.Accuracy: Since the sampling was performed with carbon-fibre tubes manufactured with uncertainties less than 0.1 mm in diameter and height the main source of error comes from the sampling routine itself. Here we assume an uncertainty of 0.5 cm in height for the sampled snow within the tube and for the core cuts in the field (&lt;1% in volume estimate). The weight of the snow and ice samples was measured with an uncertainty of 1 g giving uncertainties of sample weights less than 1 per mil. The overall uncertainty of calculated density for the meter-segments is therefore less than 1%.
DOI: 10.1594/pangaea.962758
title: A standardized EGRIP density profile, true depth and ice-equivalent depth

description: We here report measured densities from a combination of records from the EastGRIP ice-core site. The data come from a trench and two ice cores: the shallow EGRIP-S6 core and the deep main core of the project. Based on these data, we parametrize the density as a function of depth, allowing us to provide a standard transfer function between true depth and ice-equivalent depth which is consistent with the EGRIP density measurements. EGRIP density data are only available to 117 m depth, at which depth the density is about 900 kg/m^3 and the difference between true depth and ice-equivalent depth is about 22 m. The density and overburden profiles have been extended below this depth and all the way to 1200 m in order to provide a convenient, continuous and (mostly) smooth transfer function between true depth and ice-equivalent depth. See PDF file provided under 'Documentation' for full description of data and parametrization.
DOI: 10.1594/pangaea.962755
title: Density of the EastGRIP main core

description: We here report measured densities from a combination of records from the EastGRIP ice-core site. The data come from a trench and two ice cores: the shallow EGRIP-S6 core and the deep main core of the project. Based on these data, we parametrize the density as a function of depth, allowing us to provide a standard transfer function between true depth and ice-equivalent depth which is consistent with the EGRIP density measurements. EGRIP density data are only available to 117 m depth, at which depth the density is about 900 kg/m^3 and the difference between true depth and ice-equivalent depth is about 22 m. The density and overburden profiles have been extended below this depth and all the way to 1200 m in order to provide a convenient, continuous and (mostly) smooth transfer function between true depth and ice-equivalent depth. See PDF file provided under 'Documentation' for full description of data and parametrization.
description: Data from the main EastGRIP ice core. The ice core is logged and subsequently cut into 55 cm sections. All pieces of each section (normally only 1 or 2 pieces) are then placed in a plastic bag. The weight of the core and bag is determined using a calibrated scale with a precision of 1 g. The density is calculated by subtracting the weight of the bag and dividing by the volume of the core (using a fixed core diameter of 9.78 cm).Accuracy: Precision of density measurements is estimated to about 1% or better: The main limiting factors are variations in core diameter (from the drilling) and small missing bits at breaks and around core catchers. We include data from sections where there we no large missing bits, which is why the data are of non-equal spacing.
DOI: 10.15468/dl.wkumxm
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Pareuchiloglanis tamduongensis)",
 "BasisOfRecord is one of (Specimen, Literature Occurrence, Human Observation, Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1991",
 "Year is less than or equal to 2025"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027569-250802193616735/datasets/export for details.
DOI: 10.1594/pangaea.788619
title: (Table 1) Sequence and classification abundances and statistical indices of IODP Hole 325-M0058A

description: (a) = Operational taxonomic units defined by 95% sequence similarity. (b) = Indicates 95% confidence interval.
DOI: 10.15468/dl.ec5f9a
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Halichoeres modestus"
 ]
}

 The dataset includes 2 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027570-250802193616735/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.sw2hg4
title: Occurrence Download

description: A dataset containing 214896 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Human Observation, Machine Observation)",
 "Country is one of (China, Hong Kong, Macao, Chinese Taipei)",
 "TaxonKey is Nycticorax nycticorax",
 "Year 2015-2025"
 ]
}

 The dataset includes 214896 records from 30 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027530-250802193616735/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.983360
title: Alpha emitting radionuclides in sediment cores from the Western Irish Sea Mud Belt, June 2022

description: Radionuclide analysis was carried out on freeze-dried sediments sampled at 1 cm resolution from the top 40 cm of 3 sediment cores (Sites 4, 8, 20). Samples were analysed to resolve activity peaks identified by gamma spectrometry. Not all samples were analysed for each 40 cm core section. To prepare samples for alpha spectrometry, an aliquot of sample was spiked with 209Po as a chemical yield monitor and then digested using aqua regia. A clean silver disc was then placed in the resultant digest for 210Po autodeposition. Alpha spectrometry (Ortec Octete) was conducted to measure the radionuclide 210Po. Data acquisition was performed using Genie-2000 (Mirion Canberra) and spectral analysis was performed using Fitzpeaks 32 deconvolution software. Samples were counted for 8 hours to achieve low limits of detection.
DOI: 10.15468/dl.wrceyn
title: Occurrence Download

description: A dataset containing 26003 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Semnornis ramphastinus)",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "License is one of (CC-BY 4.0, CC0 1.0)"
 ]
}

 The dataset includes 26003 records from 24 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027568-250802193616735/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.983361
title: Gamma emitting radionuclides in sediment cores from the Western Irish Sea Mud Belt, June 2022

description: Radionuclide analysis was carried out on freeze-dried sediments sampled at 1 cm resolution from the top 40 cm of 7 sediment cores (Sites 4, 8, 14, 15, 20, 21, 27). Samples were analysed for a few sediment depths to resolve the overall activity profile, then additional samples were analysed to resolve activity peaks. Not all samples were analysed for each 40 cm core section. Sediments were measured for 210Pb, 137Cs, and 241Am using Mirion (Canberra) Canberra High Purity Germanium (HPGe) well-type gamma spectrometers (GAU-Radioanalytical, University of Southampton) under their accreditation to ISO/IEC17025. Data acquisition was performed using Genie-2000 (Mirion Canberra) and spectral analysis was performed using Fitzpeaks 32 deconvolution software. The HPGe detectors were efficiency calibrated using a certified, mixed gamma radionuclide standard (National Physical Laboratory, UK) which was homogenised into a near-identical sample matrix to that of the test sample. Samples were counted for 8 hours to achieve low limits of detection.
DOI: 10.1594/pangaea.983778
title: Meteorological synoptical observations from station Sonnblick (2025-04)
DOI: 10.1594/pangaea.983779
title: Meteorological synoptical observations from station Sonnblick (2025-02)
DOI: 10.1594/pangaea.983780
title: Meteorological synoptical observations from station Sonnblick (2025-03)
DOI: 10.1594/pangaea.983781
title: Meteorological synoptical observations from station Sonnblick (2025-06)
DOI: 10.1594/pangaea.983782
title: Meteorological synoptical observations from station Sonnblick (2025-05)
DOI: 10.1594/pangaea.983783
title: Meteorological synoptical observations from station Sonnblick (2025-01)
DOI: 10.1594/pangaea.983784
title: Basic measurements of radiation at station Sonnblick (2025-03)

description: snow and ice on domes on 2025/03/10 and 2025/03/17icing of dome on 2025/03/11 (morning)icing of pyrheliometer on 2025/03/14 (afternoon), 2025/03/16 (morning), 2025/03/23 (late morning)multiple reflection around noon on 2025/03/22, therefore &gt;8% difference Global 1icing of domes and pyrheliometer on 2025/03/22 (afternoon)snow cover on domes on 2025/03/29 (morning), 2025/03/31 (morning and late morning)
DOI: 10.1594/pangaea.983785
title: Basic measurements of radiation at station Sonnblick (2025-04)

description: icing of domes on 2025/04/06 (morning)icing of pyrheliometer on 2025/04/14 (morning), 2025/04/20 (morning)snow cover on domes on 2025/04/18 (all day)