cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.941856
title: TALDICE high resolution measurements of ssNa+ fluxes for MIS 9.3

description: The data here described are presented in the submitted paper Response of the Wilkes Subglacial Basin Ice Sheet to Southern Ocean Warming During Late Pleistocene Interglacials by Crotti et al. This data set includes new high resolution measurements of d-excess, d18O and ssNa+ for the Antarctic TALDICE ice core (Latitude: -72.783330, Longitude: 159.066670, Elevation: 2315.0 m). The new data set covers the interglacials periods of MIS 5.5, MIS 7.5 and MIS 9.3 (1486 m depth - 1548 m depth). The data are drawn on the TALDICE deep1 chronology (Crotti et al. 2021). The d-excess (d = δD − 8 × δ18O) (permill) record covers the periods MIS 5.5 , MIS 7.5 and 9.3 MIS is at 5 cm resolution and spans the following age-depths intervals:• MIS 5.5. Between 1378.5 and 1421.65 m depth, 110-135 ka • MIS 7.5. Between 1521.85 and 1524.5 m depth, 243-248 ka • MIS 9.3. Between 1541.80 and 1547.90 m depth, 320-343 ka The d18O record (permill) covers the periods MIS 5.5 , MIS 7.5 and 9.3 MIS is at 5 cm resolution and spans the following age-depths intervals:• MIS 7.5. Between 1521.85 and 1524.5 m depth, 243-248 ka• MIS 9.3. Between 1541.80 and 1547.90 m depth, 320-343 ka The ssNa+ fluxes record covers the periods MIS 5.5 , MIS 7.5 and 9.3 MIS is at 8 cm resolution and pans the following age-depths intervals: • MIS 7.5. Between 1521.81 and 1524.54 m depth, 243-248 ka • MIS 9.3. Between 1541.73 and 1547.96 m depth, 320-343 ka The d18O and dD (non presented here) to calculate the d-excess were analysed in Italy (University of Venice) and France (LSCE) using the Cavity Ring Down Spectroscopy (CRDS) technique. Analyses were performed using a Picarro isotope water analyser (L2130-i version for both laboratories). The data were calibrated using a three-point linear calibration with three lab-standards that were themselves calibrated versus Standard Mean Ocean Water (SMOW). The average precision for the δ18O and δD measurements is 0.1 and 0.7 ‰, respectively. The concentrations of ssNa+ were measured on TALDICE ice samples at 8 cm resolution by classical ion chromatography on discrete samples collected using a melting device connected to an auto-sampler for the MIS 7.5 and MIS 9.3 whereas Continuous Flow Analysis (CFA) was applied for MIS 5.5 samples. The total deposition ssNa+ flux was calculated multiplying the measured ice concentration of ssNa+ by the reconstructed accumulation rate. The accumulation rates were derived from the accumulation rates were obtained from the TALDICE deep1 age scale (Crotti et al. 2021).
DOI: 10.1594/pangaea.945560
title: Snow stable water isotopes of a 2 cm deep surface transect at the EastGRIP deep drilling site, summer season 2019

description: Snow samples were taken on a daily basis along a 100 m wind-parallel transect at the EastGRIP ice core deep drilling site. The snow was collected in the morning at 11 positions with 10 m spacing into four cumulative samples – each for one depth interval. The depth intervals are top 0.5 cm , top 1 cm , top 2 cm and top 5 cm . Each day, undisturbed snow was sampled and the exact sample location marked to avoid sampling disturbed snow during the next sampling event. The samples were shipped frozen to the Alfred-Wegener-Institut and stored at -25°C. Prior to measurements the samples were melted in the sample bags at room temperature. For the measurement of the isotopic composition the instruments Picarro L2120-i and Picarro L2140-i were used. The measurement set-up followed the Van-Geldern Protocol. Each sample was injected four times and the standard deviation is computed. We calculate the average over all the standard deviations as a measure of uncertainty. We find this average to be 0.01 permil for δ18O (with stdev 0.01) and 0.08 permil for δD (stdev 0.1). The maximum standard deviation within the data set was found to be 0.07 for δ18O and 0.9 for δD. As a measure of accuracy the off-set between the defined and measured value of the quality check standard for each measurement run is provided. We calculate the average of this off-set for the whole data set and obtain a value of -0.06 permil for δ18O (stdev 0.02) and -0.69 permil for δD (stdev 0.18). The maximum off-set found within the data set was -0.1 permil for δ18O and -1.12 permil for δD.
DOI: 10.1594/pangaea.946730
title: Snow Temperature at 10 cm depth, EGRIP 2019

description: We present snow temperature data from the East Greenland Ice Core Drilling Project (EGRIP) location on the Greenland Ice Sheet during summer 2019. The data consists of calibrated 1s-snow temperature measurements taken with thermocouple Type T and averaged to 30min resolution. The time index indicates start of averaging period in UTC, the local time corresponds to UTC-2. Initial snow depth was 10cm. A corresponding accumulation record can be obtained from https://doi.org/10.22008/promice/data/aws from station EGP. Coordinates: 75°37′47′′N, 35°59′22′′W, 2700m a.s.l., Start of measurements: 25.05.2019 00:00 End of measurements: 29.07.2019 12:00
DOI: 10.1594/pangaea.948258
title: Swiss Early Meteorological Observations v2.0

description: A collection of early instrumental meteorological records for 46 locations in Switzerland and one in France covering the 18th and 19th century. Available variables are air temperature, pressure, precipitation, snow depth, snow/rain occurrence, humidity, wind force and direction, cloud cover, wet bulb temperature, water temperature, soil temperature, and weather description, for a total of ca. 5 million observations. Air temperature, pressure, and precipitation data (ca. 3 million observations) have been converted to modern units and quality controlled. Time has been converted to UTC.
description: This is a major update of and supersedes an existing dataset on PANGAEA (https://doi.org/10.1594/PANGAEA.909141).The SEF folder contains a subset of processed data in a ready-to-use and well documented standard format. It is the core product. An inventory file is provided.The RAW folder contains all raw data, which mostly require some additional processing and therefore will be interesting only for a minority of expert users. It also guarantees data transparency.---Funding, Projects:- Long Swiss meteorological series, https://www.geography.unibe.ch/research/climatology_group/research_projects/long_swiss_meteorological_series/index_eng.html, funded by MeteoSwiss- CHIMES, https://www.geography.unibe.ch/research/climatology_group/research_projects/chimes/index_eng.html, Award: SNSF 169676- REUSE, https://www.geography.unibe.ch/research/climatology_group/research_projects/reuse/index_eng.html, Award: SNSF 162668- PALAEO-RA, https://www.palaeo-ra.unibe.ch, Award: H2020 ERC 787574- DIGIHOM, https://www.meteoschweiz.admin.ch/home/service-und-publikationen/publikationen.subpage.html/de/data/publications/2011/12/digitalisieren-und-homogenisieren-von-historischen-klimadaten-de.html, funded by MeteoSwiss
DOI: 10.1594/pangaea.956734
title: Pb/Ca XRF ratios of Dharamjali speleothem DHAR-1A (Table X2)
DOI: 10.1594/pangaea.938479
title: δ¹³C n-alkane analysed in the Loess Paleosol Sequence (LPS) of the Lingtai section
DOI: 10.1594/pangaea.956656
title: δ44Ca stable isotopes of Dharamjali speleothem DHAR-1A (Table X1)
DOI: 10.1594/pangaea.956735
title: S/Ca XRF ratios of Dharamjali speleothem DHAR-1A (Table X2)
DOI: 10.1594/pangaea.956737
title: Sr/Ca XRF ratios of Dharamjali speleothem DHAR-1A (Table X2)
DOI: 10.1594/pangaea.956736
title: Si/Ca XRF ratios of Dharamjali speleothem DHAR-1A (Table X2)
DOI: 10.1594/pangaea.956798
title: Al/Ca elemental ratios of Dharamjali speleothem DHAR-1A (Table X3)
DOI: 10.1594/pangaea.956850
title: Mn/Ca elemental ratios of Dharamjali speleothem DHAR-1A (Table X3)
DOI: 10.1594/pangaea.956879
title: Zn/Ca elemental ratios of Dharamjali speleothem DHAR-1A (Table X3)
DOI: 10.1594/pangaea.956799
title: B/Ca elemental ratios of Dharamjali speleothem DHAR-1A (Table X3)
DOI: 10.1594/pangaea.956834
title: Cr/Ca elemental ratios of Dharamjali speleothem DHAR-1A (Table X3)
DOI: 10.1594/pangaea.956927
title: Li/Ca elemental ratios of Dharamjali speleothem DHAR-1A (Table X3)
DOI: 10.1594/pangaea.957178
title: δ44Ca modern cave measurements for the host rock, drip water, and modern carbonate forming (Table X4)
DOI: 10.1594/pangaea.923033
title: Metadata and NCBI-Accession numbers of the global Deep-sea Sponge Microbiome Project

description: The Deep-sea Sponge Microbiome Project is a large-scale study, integrating 16S amplicon sequencing data of seawater, sediment, and sponges, with a large set of ecological and physical metadata. The present dataset includes NCBI-accession numbers, sample collection details, and diverse measurements, adding up to 50 entries for each of the 1546 covered samples.
DOI: 10.1594/pangaea.923035
title: CTD profiles of the global Deep-sea Sponge Microbiome Project

description: The Deep-sea Sponge Microbiome Project is a large-scale study, integrating 16S amplicon sequencing data with oceanographic data. The present dataset contains 66 full water conductivity-temperature-depth (CTD) profiles which were recorded in different ocean regions world wide. The profiles were trimmed to a starting depth of 20 m below the ocean surface and reach down to ~ 5 m above the ocean floor.
DOI: 10.1594/pangaea.903263
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during April, 2016
DOI: 10.1594/pangaea.958880
title: Hydrogen isotopic composition of alkenones and oxygen isotopes of benthic foraminifera from ODP Site 202-1235

description: Hydrogen isotopic compositions of C37 long chain alkenones (δ2HC37) have been proposed as a proxy for past seawater salinity and applied in several regions. However, previous studies were based solely on a single core and often suggested unlikely large changes in salinity. Here we present a new δ2HC37 record, in combination with oxygen isotopes of benthic foraminifera from the same samples, from a sediment core from the Chilean margin (ODP site 1235). The observed negative shift in δ2HC37 of 20‰ during deglaciation was identical to that of the nearby located, but deeper, ODP core 1234 (Weiss et al., 2019), suggesting a regionally consistent shift in δ2HC37. Here we present an isotope dataset spanning 0.15-94.43 mbsf. The age model of Haettig et al., 2023 covers the last 40.000 years spanning 0.15-49.50 mbfs.
DOI: 10.1594/pangaea.946775
title: GRISLI 2.0 sensitivity experiments for the Antarctic ice sheet

description: Here we present the sensitivity experiments are conducted with the latest GRISLI version 2.0 (Quiquet et al. 2018), to model changes of the Antarctic ice sheet between 100 ka and 400 ka. GRISLI 2.0 is is a large-scale three-dimensional thermomechanical ice sheet model and the newest version of the Grenoble Ice Sheet and Land Ice model (Ritz et al. 2001). The model combines an inland ice model with an ice shelf model, extended to the case of ice streams considered as dragging ice shelves. The latest release includes a better representation of grounding line migration and a sub-glacial hydrology model. The model uses finite differences on a Cartesian grid at 5 to 40 km resolution depending on the application. Here we use a 40 km grid. The spatial coverage of the model experiments is latitude: -90/-54.6602 ; longitude: -180/180. For the selection of the ice sheet model parameters, we used the calibration performed in Quiquet et al. (2018) using the ensemble member labeled AN40T213 in Quiquet et al. (2018). This ensemble member uses the formulation of Tsai et al. (2015) for the imposed flux at the grounding line. The model setup used to perform the transient paleo ice sheet simulations (boundary conditions and forcings) is identical to that used by Quiquet et al. (2018). The model is forced by near-surface air temperatures over Antarctica deduced from the EDC δD record (Jouzel et al. 2007). The GRISLI simulations are performed prescribing three different oceanic forcing indexes: (i) derived from the North Atlantic ODP 980 benthic temperature record (Quiquet et al., 2018; Waelbroeck et al., 2002); (ii) derived from the stacked deep-sea benthic oxygen isotope record (LR04)(Golledge et al., 2014; Lisiecki & Raymo, 2005); and (iii) derived from the EDC δD record (Blasco et al., 2019; Golledge et al., 2014; Jouzel et al., 2007). The outputs of the model consist in the Antarctic ice sheet surface elevation changes, bedrock elevation, and ice thickness variations over the past 400 ka with a 1ka temporal resolution. In addition, we calculated the evolution of the ice volume contained in the Wilkes Basin during the past 400 ka. We performed 27 sensitivity tests in which we changed the initial state of the Antarctic ice sheet (i.e. glacial, interglacial or deglaciated state) at 400 ka. In addition, given that the Southern Ocean forcing represents a large source of uncertainty, for all the simulations at the glacial, interglacial and deglaciated Antarctic initial state, we perform three sensitivity simulations changing the oceanic forcing: the original oceanic and the original forcing increased by 5% and by 10%.
DOI: 10.1594/pangaea.903294
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during March, 2018
DOI: 10.1594/pangaea.909474
title: Geochemistry at BIGO station POS518/2_8-1 on given timesteps
DOI: 10.1594/pangaea.945684
title: Anaerobic incubation measurements (CH4+CO2) from samples of Lena Delta collected in 2018

description: The data sets were made during the summer 2021, with samples collected from three cores, at two depths (active and permafrost layers). In total, six samples (3 replicates by samples) were incubated for 67 days at two temperatures (4°C and 20°C). Core sampling were performed during the joint Russian-German LENA 2018 expedition. This data set compiles methane (CH4) and carbone dioxyde (CO2) fluxes throughout 67 days of incubation under anoxic conditions. Gas production were measured with a gas chromatograph (7890A, Agilent Technologies, USA) with flame ionization detection (FID), and productions were calculated per gram carbon and per gram soil according to the method of Robertson., et al. (1999). Glucose treatment was performed after 60 days of incubation until the end. During this time, gas fluxes were measured every day. The data set was collected at Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research and GeoForschungsZentrum Helmholtz-Zentrum, Potsdam, Germany.
DOI: 10.1594/pangaea.981224
title: Geochemistry of coastal sites affected by submarine groundwater discharge along the Puck Bay, southern Baltic Sea

description: This study aimed to characterize the composition of submarine groundwater discharge at the shoreline of the Puck Bay, southern Baltic Sea. Porewater was sampled at various depths down to 50 cm using push point lances with PE syringes and filtered (0.45 µM, disposable cellulose acetate filters) for analysis of for major and trace metals and selected nutrients by ICP-OES (iCAP, 7400, Duo Thermo Fischer Scientific), dissolved ammonium (NH4+) by QuAAtro Analyzer System, total sulphide with a Specord 40 spectrophotometer (Analytik Jena), dissolved inorganic carbon (DIC) and δ13CDIC with an isotope gas mass spectrometer (MAT 253) coupled to a Gasbench II, and δ18OH2O, and δ2HH2O with a CRDS system (laser cavity-ring-down-spectroscopy, Picarro L2140- I). For radium (Ra) isotopes, 5-10 liters of porewater were transferred into canisters without filtration using a peristaltic pump and filtered through a Mn fiber to extract the Ra. The Ra isotopes (224Ra, 223Ra) were measured within 3 and 10 days using radium delayed coincidence counters (RaDeCC). In addition, seepage meters were used to measure seepage water fluxes and to collect samples for the above-mentioned analyses. Sediment cores were taken, sliced at 2 to 4 cm resolution and analyzed for contents of total carbon, nitrogen, and sulphur using an Elemental Analyzer (Euro Vector EuroEA 3, 052), inorganic carbon using an Elemental Analyzer multi EA (Analytik Jena), and total mercury using a DMA-80 analyzer.
DOI: 10.1594/pangaea.981225
title: Sediment geochemistry of coastal sites affected by submarine groundwater discharge along the Puck Bay, southern Baltic Sea

description: This study aimed to characterize the composition of submarine groundwater discharge at the shoreline of the Puck Bay, southern Baltic Sea. Porewater was sampled at various depths down to 50 cm using push point lances with PE syringes and filtered (0.45 µM, disposable cellulose acetate filters) for analysis of for major and trace metals and selected nutrients by ICP-OES (iCAP, 7400, Duo Thermo Fischer Scientific), dissolved ammonium (NH4+) by QuAAtro Analyzer System, total sulphide with a Specord 40 spectrophotometer (Analytik Jena), dissolved inorganic carbon (DIC) and δ13CDIC with an isotope gas mass spectrometer (MAT 253) coupled to a Gasbench II, and δ18OH2O, and δ2HH2O with a CRDS system (laser cavity-ring-down-spectroscopy, Picarro L2140- I). For radium (Ra) isotopes, 5-10 liters of porewater were transferred into canisters without filtration using a peristaltic pump and filtered through a Mn fiber to extract the Ra. The Ra isotopes (224Ra, 223Ra) were measured within 3 and 10 days using radium delayed coincidence counters (RaDeCC). In addition, seepage meters were used to measure seepage water fluxes and to collect samples for the above-mentioned analyses. Sediment cores were taken, sliced at 2 to 4 cm resolution and analyzed for contents of total carbon, nitrogen, and sulphur using an Elemental Analyzer (Euro Vector EuroEA 3, 052), inorganic carbon using an Elemental Analyzer multi EA (Analytik Jena), and total mercury using a DMA-80 analyzer.
DOI: 10.1594/pangaea.941111
title: Early instrumental time series of global measurements of the number of wet days between 1586-2019, part 4
DOI: 10.1594/pangaea.941196
title: Early instrumental time series of global measurements of monthly mean air temperatures between 1658-2021, part 4
DOI: 10.1594/pangaea.941202
title: Early instrumental time series of global measurements of monthly mean air temperatures between 1658-2021, part 5
DOI: 10.1594/pangaea.941108
title: Early instrumental time series of global measurements of the number of wet days between 1586-2019, part 3
DOI: 10.1594/pangaea.941157
title: Early instrumental time series of global measurements of monthly mean air temperatures between 1658-2021, part 2
DOI: 10.1594/pangaea.941204
title: Early instrumental time series of global measurements of monthly mean air temperatures between 1658-2021, part 6
DOI: 10.1594/pangaea.930217
title: Hydrographic and biogeochemical data from Godhäbsfjord and Ameralik Fjord, SW Greenland, 2018-2019

description: Dataset containing hydrographic and biogeochemical data from two fjords (Godhäbsfjord and Ameralik Fjord) in southwest Greenland. Data was collected during expeditions in July 2018 (KQ2018) and September 2019 (TU2019), as part of ERC funded (678371) project ICY-LAB (Isotope CYcling in the LABrador Sea) and Royal Society funded (RGF\EA\181036) project Biogeochemical Cycling in Greenlandic Fjords. All data derived from sensors are reported as an average related to the sampling period for the laboratory analysed data. For data corresponding with Towfish samples, this is a time-averaged value, corresponding to the time the Towfish was in the water and sampling occurred. For Niskin derived samples, the average for sensor derived data was calculated from a 5m depth window from a depth profiler CTD. Sampling method refers to the method in water samples were collected, prior to filtration, storage and laboratory analysis. FISH = a Towfish that was deployed for surface (up to 5m, average 3m) sampling. All detailed sampling protocols and station descriptions can be found in the associated cruise reports.
DOI: 10.1594/pangaea.941179
title: Early instrumental time series of global measurements of monthly mean air temperatures between 1658-2021, part 3
DOI: 10.1594/pangaea.981521
title: Evidence for millennial-scale interactions between Hg cycling and hydroclimate from Lake Bosumtwi, Ghana

description: The datasets include measurements of mercury, total organic, and inorganic carbon in sediment samples from core BOS04-5B, extracted from Lake Bosumtwi in 2004 as part of the ICDP Lake Bosumtwi Drilling Project. Lake Bosumtwi is the only natural lake in Ghana, western Africa (6°300 N, 1°250 W), and occupies a meteorite impact crater dated to 1.08 ± 0.04 Ma: one of the youngest and best-preserved impact craters on Earth. Focusing on the uppermost ∼ 47 m of the BOS04-5B sediment record, this data was generated to assesses whether major shifts in local hydroclimate produced measurable changes in how Hg has been transported to, and buried within, this system since ∼ 96 ka. Total Hg (HgT) in the bulk sediments of the core was measured using an RA-915 portable mercury analyser with a PYRO-915+ pyrolyser, Lumex, at the University of Oxford (UK). For this study, we analysed 165 samples spanning the composite depth interval 47.7 to 0 m, with an average temporal resolution of ∼ 0.6 ka between each sample (range: 0.01 to 5.85 kyr). Quantitative values for total organic carbon (TOC) and total inorganic carbon (TIC) content were measured on the same powdered sample material also analysed for Hg, using a Stroehlein Coulomat 702 at the University of Oxford (UK). Analytical reproducibility for this instrument was ≤ 0.2% based on repeat measurements, with a detection limit of ca. 0.1 %-0.2 %.
DOI: 10.1594/pangaea.903188
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during April, 2013
DOI: 10.1594/pangaea.981203
title: Isotope hydrobiogeochemical composition of surface water in the inner part of Puck Bay, southern Baltic Sea

description: This investigation was conducted to evaluate diagenetic elemental fluxes and different freshwater sources, including submarine groundwater discharge, in the water column of Puck Bay (Poland), southern Baltic Sea. Surface water samples were taken in June 2021. Water was pumped through a filter cartridge (1 µM pore size) into barrels and then through manganese-coated acrylic fibers to extract radium (Ra) isotopes. The Ra isotopes (224Ra, 223Ra) were measured within 3 and 10 days using radium delayed coincidence counters (RaDeCC). Subsamples were taken via PE syringes and filtered (0.45 µM, cellulose disposable acetate filters) for analysis of dissolved concentrations of major and trace elements and selected nutrients using ICP-OES (iCAP, 7400, Duo Thermo Fischer Scientific), dissolved ammonium (NH4+) by QuAAtro Analyzer System, dissolved inorganic carbon (DIC) and δ13CDIC using isotope gas mass spectrometry (MAT 253 coupled to a Gas bench II), and δ18OH2O, δ2HH2O using a CRDS system (laser cavity-ring-down-spectroscopy, PICARRO L2140- I).