cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.941412
title: RICE ice core nitrate data for the last glacial period (83-26 ka BP)

description: Roosevelt Island Climate Evolution (RICE) ice core non-sea salt calcium (nssCa) and nitrate (NO3) data, covering last glacial period from 83000-26000 years BP are presented here. RICE is a 764-m long ice core retrieved from Roosevelt Island, a coastal dome in the vicinity of Ross Sea, West Antarctica.Both nssCa and NO3 data are produced using Ion Chromatography (IC) and are of decadal resolution (50-yr averaged). IC measurements were made at National Ice Core facility at GNS Science, New Zealand in 2017 as two batches. The first batch consisted of 579 samples covering the time period between ~40.6-26 ka BP. The second batch had a total of 911 samples and covered ~83-40.6 ka BP. Analytical precision is better than ~5% for Ca and is better than ~10% for NO3. Accuracy is better than ~5 % for Ca and is better than ~30% and ~10% for NO3 in the first batch and second batch, respectively. A likely reason for relatively reduced quality of NO3 measurements in the first batch of samples could be due to the extremely small contamination from drill fluid. The statistical analysis performed using the data includes correlation analysis, change-point analysis etc. In change-point analysis, influence from the outliers were minimized using hampel filter available in MATLAB ( window size=7). Only changepoints with equivalent timing as that in WAIS Divide Ice Core were considered for discussion.
DOI: 10.1594/pangaea.946740
title: Calibrated 1.8 m stable water vapor isotope data from EastGRIP site on Greenland Ice Sheet, summer 2018

description: We present stable water isotope vapor measurements from the East GReenland Ice Sheet Project (EGRIP) location in the accumulation area of the Greenland Ice Sheet. The cavity ring-down spectroscopy instrument (Picarro) cycled through 4 levels for 15min at each level. 5 minutes at the beginning of each 15min sampling interval were cut to avoid influences from valve switching and the remaining 10 minutes averaged yielding one measurement point per hour at the 1.8m level. For the period of continuous measurements (between 10.06 12:00 and 01.07. 21:00) at 1.8m, the data were averaged into 10min bins. Isotope data is calibrated against the VSMOW-SLAP scale and corrected for humidity-dependency. The resulting uncertainty on the averaged individual values are estimated to be 0.23‰ and 1.4‰ for d18O and dD, respectively as Steen-Larsen et al. (2013).
description: Latitude: 75.627209 * Longitude: -35.987600 * Altitude: 2654m a.s.l. Total measurement period: Before 10.06.2018 12:51 Picarro 2120 After 11.06.2018 17:45 Picarro 2140 Start= 2018-05-24 19:05:45 End= 2018-08-03 10:57:53 The timeindex indicates the middle of the averaging period.
DOI: 10.15468/dl.8wvudw
title: Occurrence Download

description: A dataset containing 3928 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "Country is Haiti",
 "OccurrenceStatus is Present",
 "TaxonKey is Poaceae"
 ]
}

 The dataset includes 3928 records from 42 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0029805-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.956830
title: Co/Ca elemental ratios of Dharamjali speleothem DHAR-1A (Table X3)
DOI: 10.1594/pangaea.952934
title: Insoluble dust, ammonium, calcium, conductivity, peroxide and acid measured in firn cores in Northern Greenland in 2015: T2015-A1

description: Results from six firn cores obtained during a 426 km long northern Greenland traverse in 2015 between the NEEM and the EGRIP deep drilling stations situated on the Western and Eastern side of the Greenland ice sheet, respectively. The cores (9 to 14 m long) are analysed for chemical impurities by means of Continuous Flow Analysis (CFA); Insoluble dust, ammonium, calcium, acid, conductivity and peroxide. The data was dated by means of annual layer counting of mainly peroxide supplemented by calcium seasonal cycles and spans 18 to 53 years (±3 yrs) depending on local snow accumulation that decreases from west to east. Insoluble dust, ammonium, and calcium concentrations in the 6 firn cores overlap, and also the seasonal cycles are similar in timing and magnitude across sites, while peroxide (H2O2) and conductivity both have spatial variations. H2O2 is driven by the accumulation pattern and conductivity is likely influenced by sea salt. Data is published as part of Kjær et al. 2022, Climate of the past, https://doi.org/10.5194/cp-2021-99
DOI: 10.1594/pangaea.964840
title: Sliding cohesion measurements of the cation exchange capacity (CEC) laboratory experiment
DOI: 10.1594/pangaea.964841
title: Velocity-dependent friction measurements, input parameters for forward modeling of the cation exchange capacity (CEC) laboratory experiment
DOI: 10.1594/pangaea.932760
title: Age determination of sediment core GeoB6718-2
DOI: 10.1594/pangaea.908972
title: Wave measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during October, 2014
DOI: 10.1594/pangaea.903145
title: Weather station (Meteo Buoy WeatherStation Instrument 150WX) measurements collected at the OBSEA underwater observatory buoy during September, 2011
DOI: 10.1594/pangaea.902397
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during May, 2011
DOI: 10.1594/pangaea.927271
title: Occurence of sponges and associated fauna on the Schultz Bank (Summit) during GO Sars cruise GS2018108 in 2018

description: In 2014, two experimental Agassiz trawls were conducted on the Schulz Bank; one at the summit (568–670 m depth) and one on the southwestern flank (1,464 m depth). The 3-m-wide Agassiz trawl, with a 1 cm mesh size in the cod-end, was towed along the seafloor for 676 m on the summit and 441 m on the flank, resulting in a disturbed area of 2,028 and 1,323 m2, for the summit and flank, respectively. Towing speed was maintained at around 2 knots and the initial and final position were recorded. In August 2018, the two trawl marks and four additional control transects (one on either side of the trawl mark) were surveyed while onboard the R/V G.O.Sars. Video recordings were taken along the trawl marks and control transects with the ROV AEGIR6000. Control transects were located 50 m to the east and west of each trawl mark and were performed parallel to the mark.
DOI: 10.1594/pangaea.932703
title: Stable oxygen isotopes measured on Uvigerina sp. of sediment core GeoB9064-1
DOI: 10.1594/pangaea.891645
title: Species occurrences observed during ROV dive 4, G.O. Sars cruise in June 2016, at the Schultz Massif Seamount (Norwegian/Greenland Sea)

description: PLEASE NOTE: All requests to access this data should be forwarded to EM Roberts (Martyn.Roberts@uib.no) or H Meyer (Heidi.Meyer@uib.no).
DOI: 10.1594/pangaea.946919
title: Abundance of epibenthic fauna on a Deep-Sea Cliff offshore Greenland and the Associated Epibenthic Fauna

description: Abundance data of the epibenthic fauna annotated on each photograph taken with the ROV Isis (NOC, UK) at a deep-sea wall located offshore the West coast of Greenland (Labrador Sea, [63°51.9'N, 53°16.9'W, depth: 703 to 803 m]). Abundances were standardized to 1 m² using the images' total area. Screenshots of the morphospecies are presented in the morphospecies guide pdf. These data were used to assess for differences in community composition analysis pooled in 20 m² samples defined according to high-resolution terrain abiotic clusters computed in an unsupervised way.
DOI: 10.1594/pangaea.893535
title: Physical oceanography during POSEIDON cruise POS518/1
DOI: 10.1594/pangaea.967450
title: Annual patterns in algal pigment distribution in Arctic second year ice during the MOSAiC expedition 2019/2020

description: Algal pigment concentrations were retrieved from samples from second-year (SYI) ice, during the whole MOSAiC expedition (Multidisciplinary drifting Observatory for the Study of Arctic Climate) in 2019 to 2020. During MOSAiC, RV Polarstern anchored into an ice floe to gain new insights into Arctic climate over a full annual cycle. Sea ice data were collected starting with the onset of the study, at 85 degrees north and 137 degrees east, following the drift towards the Fram Strait, and returning into the marginal ice zone during the 4th leg of the expedition. Ice cores were collected at the various coring sites together with teams ICE and BGC (Nicolaus et al. 2022), to study the development of pigment patterns over time, on 3 specific ice-locations. Altogether, 277 samples have been collected and analysed. Ice cores were sliced in sections of 5-10 cm before analyses. Each of the sections was melted at room temperature after additions of filtered ambient seawater, under dark conditions. After extraction in 90 % acetone, samples were analysed using high-performance liquid chromatography (HPLC) on a Waters system (AWI). Algal pigments contain a multiple set of information. Firstly, pigment concentrations can show the presence of algal biomass in the various domains sampled. Secondly, marker pigments can reveal seasonal and temporal dynamics in algal community structure, by discerning specific algal classes like diatoms, cryptophytes, haptophytes and chlorophytes that have specific roles in biogeochemical cycles. Thirdly, certain pigments are indicative of the (photo)-physiological state of micro-algae and fourth, degradation products of the main chlorophyll a pigment further give an indication about senescence and grazing in the various habitats.
DOI: 10.1594/pangaea.971358
title: Seasonal chamber measurements of CH4 fluxes and pore water data from vegetation removal experiments on the microtopography scale of Siikaneva bog, southern Finland, in 2021 and 2022

description: The data set contains chamber measurements of methane (CH4) emissions from vegetation removal experiments consisting of three vegetation treatments (intact vegetation, vascular plants removed, all vegetation removed) at four microtopography types of Siikaneva bog (mud bottoms, hollows, high lawns, and hummocks) with five spatial replicates of the vegetation removal experiment each. Each chamber measurement was performed once under light and once under dark conditions. In summer 2021 each measurement was additionally performed under single and double shading of the measurement plot. We sampled the pore water at 20 cm depth in the peat profile for the concentrations of DOC, TDN and dissolved CH4 and its δ13C values and measured the peat temperature both in an area with intact vegetation as well as where the vascular plants were removed. Additionally, we measured the water table depth and determined the green leaf area index (LAI) of each vascular plant species present at our sampling sites, grouping them to derive total LAI, LAI of aerenchymatous plants and shrub LAI. The flux measurements and pore water samples were collected at Siikaneva bog, Southern Finland in seasonal field campaigns in July and August 2021 and May, July, September, and October 2022. We combined the CH4 flux measurements on the vegetation removal experiments with pore water concentrations and isotopic data to investigate the seasonal change in the spatial variability in CH4 emissions and its environmental and ecological controls. In our study, we furthermore extrapolated the chamber measurements to the area of Siikaneva bog using a microtopography map derived from drone imagery in order to assess the importance of high-resolution land cover mapping for an accurate estimation of ecosystem scale CH4 budgets.
DOI: 10.1594/pangaea.908940
title: Wave measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during December, 2012
DOI: 10.1594/pangaea.902674
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during January, 2017
DOI: 10.1594/pangaea.928922
title: FOFS measurements and metabolic performance records for transplants and recruits of Mytilus spp. incubated using KOBs in summer 2018

description: These data were produced in two lab assays. The first assay was conducted in the period from August 29 to September 10, during which filtration and respiration of 18 mussels transplanted and grown for ca. four months under thermal history levels of + 0 °C and + 4 °C (using Kiel Outdoor Benthocosms, KOBs) were recorded in six temporally replicated (independent) trials using the Fluorometer and Oximeter-equipped Flow-through Setup (FOFS; Vajedsamiei et al., 2021). In each trial, filtration and respiration of three different transplants, randomly selected from the incubated samples were recorded in response to a constant mild temperature condition (20.8 °C) followed by two 24 h thermal fluctuation cycles. In the second assay, we recorded filtration and respiration rates of six batches of 5 or 6 mussels recruited and grown under the same thermal history levels in KOBs (three batches from each thermal history level) in temporally replicated trials of the same FOFS treatment, as explained earlier.
description: The approach for aquiring data, associated measurement corrections and calculations of response variables, and the parameter names, prefices and suffices are described in the method paper: Vajedsamiei et al., 2021 doi:https://doi.org/10.1002/lom3.10414
DOI: 10.1594/pangaea.972371
title: KOSMOS 2022 Bergen mesocosm study on ocean alkalinity enhancement: phytoplankton metabolic rates

description: Ocean alkalinity enhancement (OAE) is a marine carbon dioxide removal (mCDR) with the potential to remove atmospheric CO2 and increase the ocean's buffering capacity. Thus, it may aid in mitigating global warming and ocean acidification. Depending on the source mineral type (if silicate or calcium-based) and on if implemented in a pre- or non-equilibrated way, impacts on the microbial community's metabolic rates can be expected. The mineral type may introduce compounds to the system that may benefit certain phytoplankton species over others, and if non-equilibrated, changes to the pCO2 and pH may hinder primary production. To address this, an experiment with 10 pelagic mesocosms was undertaken, starting on the 7th May 2022. Two 5-step non-equilibrated TA gradients in increments of 150 µmol L-1 were implemented. One simulated a forsterite [Mg2SiO3] addition, and the other one a hydrated lime [Ca(OH)2] addition. Gross production (GP), net community production (NCP), community respiration (CR), and community metabolic balance (GP:CR), measured in vitro through oxygen production and consumption, as well as chlorophyll a, were monitored over a 53-day long period. All the biogeochemical parameters relevant to their response were measured as well. After a nutrient addition undertaken halfway through the experiment, a delay in bloom formation associated with the TA manipulation was observed. This is likely due to the previously reported, species-specific responses to low pCO2 and high pH conditions in terms of growth rates. Further research will be necessary to evaluate the implications of this findings with regards to trophic transfer, and seasonal suitability.
DOI: 10.1594/pangaea.891034
title: Suspended matter concentration during G. O. Sars cruise GS2016109A in June 2016, at the Schultz Massif Seamount (Norwegian/Greenland Sea)

description: Using CTD .btl files for each cast, pressures were converted into depths shown here using UNESCO MS 44 (Fofonoff and Millard, 1983).
DOI: 10.1594/pangaea.921772
title: Records of distribution of deep-sea lithistids (Porifera, Heteroscleromorpha) of the Azores archipelago

description: Records of distribution of deep-sea lithistids (Porifera, Heteroscleromorpha) of the Azores archipelago
DOI: 10.1594/pangaea.929934
title: Sequences used in 28S and COI phylogenetic reconstructions of deep-sea lithistids (Porifera, Heteroscleromorpha) of the Azores archipelago

description: Sequences used in 28S and COI phylogenetic reconstructions of deep-sea lithistids (Porifera, Heteroscleromorpha) of the Azores archipelago
DOI: 10.1594/pangaea.903341
title: Weather station (Meteo Buoy WeatherStation Instrument 150WX) measurements collected at the OBSEA underwater observatory buoy during April, 2019
DOI: 10.1594/pangaea.950508
title: Modelled carbon and nitrogen zooplankton stable isotope data in the North Atlantic Ocean from 1998-2020

description: Calanus (copepod) sampled by the Continuous Plankton Recorder (CPR) survey (https://www.cprsurvey.org/) in the North Atlantic from 2009-2018 were analysed for stable carbon (d13C) and nitrogen (d15N) isotopes. This observational dataset was used together with environmental variables (sea surface temperature, mixed layer depth, chlorophyll a, wind speed) to develop Bayesian spatial models and to produce yearly and seasonal isoscapes (spatial modelling of stable isotope ratio) for 1998-2020. This dataset contains the isoscapes data, the isoscapes plots and and the Suess correction factors for the d13C isoscape data.
description: Isoscapes values: Rows correspond to latitude coordinates from 40N to 72N, step 0.25 degrees; and columns to longitudes coordinates from -60W to 16E, step 0.25 degrees.Isocapes plots: Graphical representation of isocapes based on data presented above.Suess correction: d13C isoscape data are corrected for Suess effect taking 2015 as year of reference. To obtain uncorrected data, please apply these correction factors (see Clark et al. 2021 for more information).
DOI: 10.1594/pangaea.902684
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during November, 2017
DOI: 10.1594/pangaea.903340
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during March, 2019
DOI: 10.1594/pangaea.953832
title: Proteomic profiles of Platynereis spp. collected from inside and outside the CO2 vent (Ischia, Italy) and used in a reciprocal transplant experiment 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. The effect of exposure to high or low partial pressures of CO2 (pCO2) conditions on the proteome of worms from different pCO2 regimes was investigated to understand the effect of exposure to different pCO2 conditions on the cellular physiological response. This experiment was conducted between 04/09/2013 and 16/09/2013. The experiment was staggered during this time so all worms could be processed. After five days exposure to either low or high CO2 conditions worms were snap frozen in liquid nitrogen and shipped to the University of Hong Kong for proteomic analysis which was finalised on 02/08/2015. Proteomic profiles of worms were characterised using a liquid chromatography-mass spectrometry/mass spectrometry triple time of flight (LC-MS/ MS Triple TOF) approach.
description: Complete list of proteins identified in annelids Platynereis spp. from control and treatment conditions. Proteomic data were analysed in the free software Perseus (Tyanova et al., 2016) and MetaboAnalyst 4.0 (Chong et al., 2019). The proteomics analysis of Platynereis spp. led to the identification of 663 proteins, 51 of which remained for statistical analysis after the filtering step (removal of proteins with &lt;60 % valid values). Table provides information about the mean LFQ (Label Free Quantification) intensities calculated for each protein as the best estimate satisfying all the pair-wise peptide comparisons for all analyzed experimental groups, Q-value-Andromeda output, Score-Andromeda score for the best associated MS/MS spectrum, Intensity: intenstity of the ions, MS/MS Count is spectral counting of the ions, here distinct peptide sequences are counted. Modified forms or different charges are counted as one peptide, name of proteins, number of identified peptides, UniProt accession number. (---: not applicable)
DOI: 10.34740/kaggle/dsv/13712336
title: BITCOIN Historical Datasets 2018-2025 Binance API
DOI: 10.1594/pangaea.908952
title: Wave measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during March, 2013
DOI: 10.1594/pangaea.881182
title: Full depth ocean properties in the eastern subpolar North Atlantic, Cruise DY052, Extended Ellett Line, 2016, link to raw data in NetCDF format

description: The Extended Ellett Line is a hydrographic section between Iceland and Scotland that is occupied annually by scientists from the National Oceanography Centre (NOC) and the Scottish Association for Marine Science (SAMS), UK. The measurement programme began as a seasonally-occupied hydrographic section in the Rockall Trough in 1975, building on early surface observations made underway from ocean weather ships. In 1996 the section was extended to Iceland, sampling three basins: the Rockall Trough, the Hatton-Rockall Basin and the Iceland Basin. These three basins form the main routes though which warm saline Atlantic water flows northwards into the Nordic Seas and Arctic Ocean. The section crosses the eastern North Atlantic subpolar gyre; as well as the net northward flow there is a large recirculation of the upper layers as part of the wind-driven gyre. During its passage through the region, the warm saline water is subjected to significant modification by exchange of heat and freshwater with the atmosphere. The two deep basins (Rockall Trough and Iceland Basin) contain southward flowing dense northern overflow waters, and Labrador Sea Water in the intermediate layers. The specific objectives of the 2016 Extended Ellett Line cruise are: - To complete the annual Extended Ellett Line CTD section; - To collect water samples for measuring biogeochemical properties including dissolved oxygen, nutrients, carbon & trace metals; - To collect underway measurements of surface currents, surface temperature and salinity, bathymetry, surface meteorology; - To complete epibenthic sled tows at a deep location in the central Rockall Trough; - To capture water column and sea floor video with a downward-looking camera attached to the CTD; - To listen for whales and dolphins with a towed hydrophone; and - To deploy Argo floats provided by the UK Met Office as a contribution to the International Argo Project.
description: This archive of files is identical to the final data sent to the British Oceanographic Data Centre with extensive metadata available at: https://www.bodc.ac.uk/resources/inventories/cruise_inventory/report/16032/
DOI: 10.1594/pangaea.908939
title: Current measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during December, 2012