cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.971282
title: Nonlinear Mapping (NLM) analysis of IRD content in Heinrich Event layers (H1-H5a) and interlayers (I1-I5) of sediment core GeoB18530-1

description: This 3D data set represents the result of a Sammon projection (Sammon, 1969; https://doi.org/10.1109/T-C.1969.222678), where the mean relative proportions of all classified IRD lithologies for layers H1-H5a and IL1-IL5 were scaled down from the 22-dimensional parameter space into a presentable 3D space with the least possible change of point-to-point distance by Non-Linear Mapping (NLM). The spatial configuration depicted in Figure 9d of the associated publication (Bukar et al., 2024) visualizes the overriding compositional distinctiveness of Heinrich layers from Interlayers, but also the variability within each of these periods; in particular layers H3 and H6 as well as Last Glacial maximum interlayer I1 differ considerably from comparable situations.
description: Corresponds to Figure 9d.
DOI: 10.1594/pangaea.971288
title: Relative and absolute abundance records of three IRD particle groups and six major IRD lithologies of sediment core GeoB18530-1

description: As detailed in Bukar et al. (2024), the 22 classifiable IRD lithologies can be group according to their preferred affiliation to Heinrich Layers (HL) and Interlayers (IL). Group 1 has higher relative abundance during HLs, Group 3 has a higher percentage during ILs, while Group 2 is similarly high represented in HLs and ILs. This data set contains relative and absolute IRD count records of Groups 1-3 and the six major IRD lithologies (Shale, Sucrosic Dolomite, Shocked Quartz, Hematite-coated Quartz, Muscovite-Biotite Granite, Ooid-bearing Dolomite). All here presented count records were smoothed by a weighed 5-point (factors 1-2-5-2-1) running mean to reduce stochastic high-frequency noise related to the relative small individual count numbers.
description: Corresponds to Figure 11 a-d
DOI: 10.1594/pangaea.771707
title: (Table S3) Sea surface temperature and relative abundance of C37:4 alkenone in ODP Site 145-882
DOI: 10.1594/pangaea.882546
title: Late Pleistocene carbon dioxide from ODP Site 165-999
DOI: 10.1594/pangaea.975257
title: HOBO Water Temperature Pro Data Logger observations at East Snake Caye, Belize, between June 2002 and November 2007

description: HOBO Water Temperature Pro Data Loggers (accuracy ± 0.2 °C and resolution 0.02 °C; http://www.onsetcomp.com) were installed at East Snake Caye within the inner lagoon reef and White Reef on the outer barrier reef. They recorded temperatures at 15-minute intervals from June 2002 to August 2005 and 10-minute intervals from October 2006 to December 2007. The logger observations, made at 3-6m depth were used as an in situ reference, to validate two satellite SST products (NOAA's CoralTemp and ESA CCI's SST version 2.1) used in coral reef monitoring. A full description of the installation process is available in Castillo KD, Lima FP. Comparison of in situ and satellite‐derived (MODIS‐Aqua/Terra) methods for assessing temperatures on coral reefs. Limnology and Oceanography: Methods. 2010;8(3):107-17.
DOI: 10.1594/pangaea.977364
title: HOBO Water Temperature Pro Data Logger observations at Sapodilla Cayes, Belize, between July 2002 and December 2007

description: HOBO Water Temperature Pro Data Loggers (accuracy ± 0.2 °C and resolution 0.02 °C; http://www.onsetcomp.com) were installed at East Snake Caye within the inner lagoon reef and White Reef on the outer barrier reef. They recorded temperatures at 15-minute intervals from June 2002 to August 2005 and 10-minute intervals from October 2006 to December 2007. The logger observations, made at 3-6m depth were used as an in situ reference, to validate two satellite SST products (NOAA's CoralTemp and ESA CCI's SST version 2.1) used in coral reef monitoring. A full description of the installation process is available in Castillo KD, Lima FP. Comparison of in situ and satellite‐derived (MODIS‐Aqua/Terra) methods for assessing temperatures on coral reefs. Limnology and Oceanography: Methods. 2010;8(3):107-17.
DOI: 10.1594/pangaea.921129
title: Intact polar lipids of station T3 and T5 from LowpHOX-2 cruise
DOI: 10.1594/pangaea.921125
title: Water column chemistry of station T3 and T5 from LowpHOX-2 cruise
DOI: 10.1594/pangaea.899841
title: ArcCRUST: Arctic crustal thickness from 3D gravity inversion, links to files in NetCDF format

description: The ArcCRUST model consists of crustal thickness and estimated crustal thinning factors grids for the High Arctic and Circum-Arctic regions (north of 67°N). This model is derived by using 3D forward and inverse gravity modelling. Updated sedimentary thickness grid, an oceanic lithosphere age model together with inferred microcontinent rifting ages, variable crystalline crust and sediment densities, and dynamic topography models constrain this inversion. We use published high-quality 2D seismic crustal-scale models to create a database of Depths to Seismic Moho (DSM) profiles. To check the quality of the ArcCRUST model, we have performed a statistical analysis of misfits between the ArcCRUST Moho depths and DSM values. Systematic analysis of the misfits within the Arctic sedimentary basins provides information about tectonic processes unaccounted by the assumed model of pure-shear lithospheric extension. In particular, our model implies a less-dense and/or thin mantle lithosphere underneath microcontinents in the deep Arctic Ocean where the ArcCRUST depth to Moho values exceed the depth to seismic Moho. A systematically larger gravity-derived crustal thickness (ca. 3 km) under the western and northern Greenland Sea points to a hotter upper mantle implied by the seismic tomography models in the North Atlantic.
description: Supplement to: Lebedeva-Ivanova, Nina; Gaina, Carmen; Minakov, Alexander; Kashubin, Sergei (2019): ArcCRUST: Arctic Crustal Thickness From 3-D Gravity Inversion. Geochemistry, Geophysics, Geosystems, 20(7), 3225-3247
DOI: 10.1594/pangaea.943416
title: Integrated abundance, cell volume, viability and leucine incorporation rates of prokaryotes in the epipelagic, mesopelagic and bathypelagic layers of the tropical and subtropical Atlantic

description: This dataset contains the results of the characterisation of the prokaryotic community by flow cytometry and tritiated leucine incorporation from the MAFIA cruise (Migrants and Active Flux In the Atlantic ocean). Samples were collected in the tropical and subtropical Atlantic during the MAFIA cruise (April 2015) on board the BIO Hespérides. Seawater samples were collected at 13 stations (from the Brazilian coast to the Canary Islands), from the surface down to 3500 m, using a General Oceanics oceanographic rosette equipped with 24 l PVC Niskin bottles. Abundance and cell characteristics (high nucleic acid content fraction, cell volume, viability) were based on measurements performed with a FACSCalibur (Becton-Dickinson) flow cytometer. Leucine incorporation rates were estimated with tritiated leucine (Kirchman et al. 1985) using centrifugation and filtration methods (Smith and Azam 1992). Integrated or average values of variables were estimated for the epipelagic (0-200 m), mesopelagic (200-1000 m) and bathypelagic (1000-3000 m) layers, based on an interpolated grid estimated with DIVA. The aim of this dataset was to estimate the influence of surface productivity on the standing stock, characteristics and activity (as leucine incorporation) of prokaryotes across the water column.
DOI: 10.1594/pangaea.958133
title: Glacier surface velocities per day of Gepatschferner and Taschachferner, 2021

description: Glacier surface velocities are measured on four neighbouring glaciers in the Ötztal Alps (Austria). Measurements of the annual horizontal flow velocity (Δs/a [m/a]) on Hintereisferner (HEF) were started in 1885 at stone lines (cross-profiles). Annual values for the stone lines are given as mean values from the stones at the cross-profiles. On Kesselwandferner, the annual horizontal (Δs/a [m/a]) and vertical velocities (Δv/a [m/a], positive upwards and negative downwards) are measured at ablation and accumulation stakes since 1965. On Taschachferner (TSF) and Gepatschferner (GPF), the records of annual and subseasonal horizontal flow velocities at ablation stakes were started in 2009.This data series is a continuation of: doi:10.1594/PANGAEA.896741
DOI: 10.1594/pangaea.958134
title: Glacier surface velocities per day of Gepatschferner and Taschachferner, 2022

description: Glacier surface velocities are measured on four neighbouring glaciers in the Ötztal Alps (Austria). Measurements of the annual horizontal flow velocity (Δs/a [m/a]) on Hintereisferner (HEF) were started in 1885 at stone lines (cross-profiles). Annual values for the stone lines are given as mean values from the stones at the cross-profiles. On Kesselwandferner, the annual horizontal (Δs/a [m/a]) and vertical velocities (Δv/a [m/a], positive upwards and negative downwards) are measured at ablation and accumulation stakes since 1965. On Taschachferner (TSF) and Gepatschferner (GPF), the records of annual and subseasonal horizontal flow velocities at ablation stakes were started in 2009.This data series is a continuation of: doi:10.1594/PANGAEA.896741
DOI: 10.1594/pangaea.958526
title: High-pressure liquid chromatography (HPLC) pigment concentration data and flow-cytometry picophytoplankton abundance and fluorescence data from depth-resolved CTD profiles at 'Biomass stations' during RV Tangaroa expedition TAN1702

description: Here we present data of phytoplankton pigment and flow cytometry (FCM) depth-resolved data collected from the water column (0-100 m) during TAN1702 voyage (March-April 2017) in subantarctic waters across the Campbell Plateau region southeast of New Zealand on board of the RV Tangaroa.
DOI: 10.1594/pangaea.839452
title: Age model for the period spanning 140-118 ka of ODP Site 177-1094

description: The age model for the period spanning 140-118 ka was derived by tuning the TEX86L temperature record from ODP1094 to the Antarctic ice core temperature record on the Antarctic Ice Core Chronology (AICC2012). This augments the age model used for the same core by Jaccard et al. (2013, doi:10.1126/science.1227545).
DOI: 10.1594/pangaea.891428
title: Opal flux of sediment core MD11-3353
DOI: 10.1594/pangaea.907521
title: Conceptual model simulations of the Miocene Antarctic ice sheet

description: We present results from ice volume simulations, performed using a conceptual model of transient ice volume variability. This model is based on the notion that at any level of a control parameter (C), in our case a CO2-index, an ice sheet will grow or shrink towards an equilibrium state (Veq). Details are given in the accompanying publication. For more information or data, please contact the authors.Dataset 2020_Stap_data_pism.xlsx contains the results from the simulations using the input C-Veq relation, and growth and decay rates, which mimic Miocene Antarctic ice sheet results obtained using the 3D thermodynamical ice sheet model PISM.Dataset 2020_Stap_data_linear.xlsx contains the results from the simulations using the simple linear C-Veq relation and growth and decay rates specified per experiment.Dataset 2020_Stap_data_hysteresis.xlsx contains the results from the simulations using the piecewise linear C-Veq relation with hysteresis, and growth and decay rates specified per experiment, which are discussed in the Appendix of the accompanying publication.
description: The zip folder contains two files:2020_Stap_data_hysteresis.xlsx2020_Stap_data_linear.xlsx2020_Stap_data_pism.xlsx
description: Supplement to: Stap, Lennert Bastiaan; Knorr, Gregor; Lohmann, Gerrit (2020): Anti-Phased Miocene Ice Volume and CO2 Changes by Transient Antarctic Ice Sheet Variability. Paleoceanography and Paleoclimatology, 35(11)
DOI: 10.1594/pangaea.826590
title: (Fig. 2) Iron content of sediment core PS75/056-1

description: Alignment of Fe content records to EDC dust contents on AICC12 time-scale; see Lamy et al., 2014 SOM.
DOI: 10.1594/pangaea.960042
title: Seawater carbonate chemistry and seasonal net calcification by secondary calcifiers in coral reefs of the Eastern Tropical Pacific Ocean

description: This study assesses whether secondary calcification is driven by a contrasting seasonal pattern (rainy vs dry) that occurs in the Eastern Tropical Pacific (ETP). Secondary calcifiers net calcification rates and coverage were measured in two reefs: the semi-enclosed Bahía Tiburón reef (BT [21°52′30 “N, 105°54/54 “W]) and the open Las Monas fringing reef (LM [21°51ʹ00ʹʹN, 105°52ʹ45ʹʹW]). Measurements were made from 2013 to 2016 using Calcification Accretion Units (CAUs). Seawater temperature, illuminance, pCO2, pH, ΩCa, and ΩAr were also measured. Low means of pCO2, and high means of ΩCa and ΩAr, were measured during the rainy season. At Las Monas, the composition of the calcifier community differed between seasons. A seasonal effect on net calcification was recorded in the semi-enclosed reef and in the exposed microhabitat of both reefs. Overall, net calcification (mean ± SD) was 1.17 ± 1.13 g·CaCO3·m−2·day−1. Calcification in the open fringing reef (1.51 ± 1.32 g·CaCO3·m−2·day−1) was almost double that in the semi-enclosed reef (0.83 ± 0.78 g·CaCO3·m−2·day−1). Calcification also decreased dramatically between 2014 (1.57 g·CaCO3·m−2·day−1) and 2016 (0.99 g·CaCO3·m−2·day−1). The ENSO event of 2015 raised the water temperature almost 1 °C above the decadal average, which led to a mass coral bleaching in both reefs. That thermal stress might explain the calcification decline in 2015–2016, but probably also obscured a clearer seasonal pattern in net calcification. This study is the first to show that anomalous and persistent high seawater temperatures can affect carbonate production by secondary calcifiers.
description: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2023-06-26.
DOI: 10.1594/pangaea.757945
title: Core correlation of IODP Site 306-U1313

description: DEPTH, sediment (m) is given in composite depth (mcd).
DOI: 10.1594/pangaea.899411
title: Rock physic samples from TAG, Mid-Atlantic Ridge, and various onshore samples

description: The list attached contains physical properties (density, porosity, magnetic susceptibility, p-wave velocity and electrical resistivity) of seafloor massive sulphide, jasper and basalt samples. The seafloor samples have been obtained during cruise JC138, Mid-Atlantic Ridge, 26N (cruise report https://www.bodc.ac.uk/resources/inventories/cruise_inventory/report/16052/ ) in July 2016 and from onshore analogues. The data has been measured at the National Oceanography Centre under the lead of Dr Laurence North.
description: Supplement to: Gehrmann, Romina A S; North, Laurence J; Graber, Sebastian; Szitkar, Florent; Petersen, S; Minshull, Tim A; Murton, Bramley J (2019): Marine Mineral Exploration With Controlled Source Electromagnetics at the TAG Hydrothermal Field, 26°N Mid-Atlantic Ridge. Geophysical Research Letters, 46(11), 5808-5816
DOI: 10.15468/dl.zkhfp8
title: Occurrence Download

description: A dataset containing 420692 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is Naturalis Biodiversity Center (NL) - Botany",
 "CollectionCode is Botany",
 "Country is one of (Argentina, Bolivia (Plurinational State of), Brazil, Colombia, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela (Bolivarian Republic of), Ecuador, Chile)"
 ]
}

 The dataset includes 420692 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0039319-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.958528
title: High-pressure liquid chromatography (HPLC) pigment concentration data and flow-cytometry picophytoplankton abundance and fluorescence data from serial dilution experiments conducted with surface mixed-layer water in 'Experimental stations' during TAN1702

description: Here we present data of phytoplankton pigment and flow cytometry (FCM) data from initial (T0) and final (T24) samples obtained from serial dilution grazing experiments set up with surface mixed layer water from subantarctic waters across the Campbell Plateau region southeast of New Zealand. Experiments were incubated onboard of the RV Tangaroa using deck flow-through incubators simulating in situ light and temperature conditions.
DOI: 10.1594/pangaea.961704
title: MATLAB script for grain images and grain-shape metrics of glacial sediments from Antarctica, Northwest Greenland, and the central Barents Sea

description: This project explores grain-scale signatures of subglacial sediment transport and subglacial hydrologic processes using grain shape and microtexture. We compare grain-shape distributions for grains from meltwater plume deposits to those of subglacial till and ice-proximal diamicton from the same glacial setting. The study incorporates samples from marine sediment cores collected offshore of Ryder Glacier in northwest Greenland, in the central Barents Sea, and Antarctic samples from Marguerite Bay, offshore Thwaites and Pine Island glaciers, and in the western Ross Sea. This dataset contains a MATLAB script used to process grain images and calculate individual grain-shape metrics (including circularity, solidity, and eccentricity), and an Excel spreadsheet containing the grain-shape measurements. Grain images were collected in 2022-23 using a Bettersizer S3 Plus particle size and shape analyzer at the University of Virginia.
description: File descriptions: The excel file GrainShapeMetrics.xlsx contains the values of grain-shape measurements with each study region in a different tab, with the first tab called READ_ME providing details of the metrics, units, references to documentation, and explanations of each column header. The MATLAB script, GrainShapeAnalysis_Binarized.mlx, which is used to process grain images, convert images to binary, and calculate the measurements presented in the Excel file is also included. Sample metadata is available in the Excel file Events_Metadata.xlsx.
DOI: 10.1594/pangaea.964012
title: A global database of dissolved organic matter (DOM) concentration measurements in coastal waters (CoastDOM v.1)

description: This global database (CoastDOM v.1) contains both previously published and unpublished measurements of Dissolved organic carbon (DOC), nitrogen (DON) and phosphorus (DOP) in coastal waters. The dataset also contains hydrographic data such as temperature and salinity and, to the extent possible, other biogeochemical variables (e.g., Chlorophyll-a, inorganic nutrients) and the inorganic carbon system (e.g., dissolved inorganic carbon and total alkalinity). The data included were collected from 1978 to 2022 and consist of 62339 data points for DOC, 20360 for DON and 13440 for DOP.
DOI: 10.1594/pangaea.792636
title: Depth-age pointers and linear sedimentation rates of sediment core PS75/034-2
DOI: 10.1594/pangaea.893220
title: Megafaunal ecological parameters investigated across the nodule cover gradient of the APEI6 of the CCZ

description: Megafaunal parameters explored across different polymetallic-nodule covered seafloor classes. Megafaunal occurrences used to compute ecological parameters were inferred from seafloor imagery data collected using an autonomous vehicle during RSS James Cook cruise JC120 to the APEI6 area of the CCZ (Jones, 2015), in stations JC120-047, JC120-078, and JC120-087. Depth ranges between different data sites was 3950–4250 m. Environmental variables (i.e. nodule cover) were determined using image-based detection algorithms.
description: Supplement to: Simon-Lledó, Erik; Bett, Brian J; Huvenne, Veerle A I; Schoening, Timm; Benoist, Noelie M A; Jones, Daniel O B (2019): Ecology of a polymetallic nodule occurrence gradient: Implications for deep-sea mining. Limnology and Oceanography, 64(5), 1883-1894
DOI: 10.1594/pangaea.904422
title: Particle fluxes of thirteen sediment traps off Cape Blanc, Mauritania

description: Long-term data characterizing the oceans' biological carbon pump are essential for understanding impacts of climate variability on marine ecosystems. The 'Bakun upwelling intensification hypothesis' suggests intensified coastal upwelling due to a greater land-sea temperature gradient influenced by global warming. We present particle fluxes from ca. 1200-3600m water depth from a coastal and an offshore sediment trap setting located in the Canary Current upwelling. Organic carbon (Corg) and biogenic opal (BSi, diatoms) fluxes were two- to three-fold higher at the coastal upwelling site compared to the offshore site, respectively, and showed higher seasonality with flux maxima in spring. Fluxes of dust regularly showed maxima in winter when frequent low-altitude dust storms and deposition occurred, decreasing offshore by about three-fold. We obtained a high temporal match of short-term peaks of BSi and dust fluxes in winter-spring at the coastal site. Corg and BSi fluxes revealed a decreasing trend from 2006 to 2016 at the coastal site, pointing to coastal upwelling relaxation during the last two decades. The permanent offshore upwelling zone of the Canary Current showed no signs of increasing upwelling as well, which contradicts the Bakun hypothesis.
description: Supplement to: Fischer, Gerhard; Romero, Oscar E; Toby, E; Iversen, Morten Hvitfeldt; Donner, Barbara; Mollenhauer, Gesine; Nowald, Nicolas; Ruhland, Götz; Klann, Marco; Hamady, Bambaye Ould; Wefer, Gerold (2019): Changes in the dust-influenced biological carbon pump in the Canary Current System: Implications from a coastal and an offshore sediment trap record off Cape Blanc, Mauritania. Global Biogeochemical Cycles, 33(8), 1100-1128
DOI: 10.1594/pangaea.792638
title: Alkenone indices, sea surface temperature estimates and foraminiferal δ¹⁸O of sediment core GeoB3327-5
DOI: 10.1594/pangaea.903098
title: Biomarkers (TEX86) of IODP Hole 356-U1459B
DOI: 10.1594/pangaea.882550
title: Stable isotope record of Cibicidoides wuellerstorfi and Globigerinoides ruber of ODP Hole 165-999A
DOI: 10.1594/pangaea.891435
title: Diatom-bound nitrogen isotope records in sediment core PS75/072-4
DOI: 10.1594/pangaea.897624
title: (Supplement 2) Normalized district case anomalies from Uganda covering period 2004 to 2010, link to csv file

description: Normalized district case anomalies from Uganda covering period 2004 to 2010, with model forecast data projected to shapefiles for ease of comparison.CSV file with the following format: District name, year, lead month, case anomaly, fc anom mem0, mem1, mem2, mem3
DOI: 10.1594/pangaea.904256
title: Responses of peatland vegetation to 15-year water level drawdown as mediated by fertility level

description: Peatland vegetation community data following experimental water level manipulation with measurements repeated six times in 15 years.
description: Supplement to: Kokkonen, Nicola A K; Laine, Anna Maria; Laine, Jukka; Vasander, Harri; Kurki, Kirsi; Gong, Jinnan; Tuittila, Eeva-Stiina (2019): Responses of peatland vegetation to 15-year water level drawdown as mediated by fertility level. Journal of Vegetation Science, 30(6), 1206-1216