cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.983923
title: Grain properties and crystal-preferred orientation for EGRIP ice core samples (horizontal sections), 111-2664 m depth

description: Fabric Analyser (G50, Russell-Head Instruments) image data from horizontal thin sections from the EGRIP ice core were processed with the software cAxes (version 21.06.21 slim), using manually prepared mask images (background.bmp) to exclude image artefacts from the sample margins, to obtain segmented grain data and crystal-preferred orientation data. 66 sections from 18 bags were measured in the field camp at EGRIP, Greenland, during field seasons 2017, 2018, 2019, 2022, and 2023. A bag refers to an ice core segment of 55 cm length which is typically cut into six pieces of 9 cm length from which thin sections are prepared using a manual sledge microtome. Horizonal sections were prepared only from ice core volume samples (75% of ice core from bottom of approx. every 200th bag, corresponding to depth of 6th sample in bag). Data are not available between 2121 and 2417 m. The results from the image processing include a table listing samples, ice core depth and per-section statistical parameters on grains (number, mean grain size) and c-axis orientation (grain- and area-weighted second-order orientation tensor eigenvalues, woodcock parameter). For each sample attached data files provide additional info on grains in a section (*grains.txt), measurement, processing parameters and further statistical c-axis orientation parameters (*results.txt) and a false-color image of the section showing microstructure and per-grain c-axis orientation via a colorcode (*rgb.png). Sample files are named according to the convention EGRIP_-_.
description: It is likely that samples 1208_6-top and 1400_6-top were accidentally permuted during data acquisition.Volume sample 400_6 was sliced in 34 horizontal sections.
DOI: 10.1594/pangaea.884546
title: Physical oceanography and current meter data from mooring HG-N-FEVI-33 at Hausgarten North
DOI: 10.1594/pangaea.855474
title: Biogenic particle flux at AWI HAUSGARTEN central station HGIV from mooring FEVI16
DOI: 10.1594/pangaea.928799
title: Seabed photographs taken along OFOBS profile MSM95_20-1 during RV MARIA S. MERIAN cruise MSM95
DOI: 10.1594/pangaea.845689
title: Pteropod sedimentation at AWI HAUSGARTEN central station HGIV in 2004/2005 (Trap FEVI7)
DOI: 10.1594/pangaea.904481
title: Physical oceanography and current meter data from mooring R2-1
DOI: 10.1594/pangaea.811321
title: Biochemical investigation of multicorer sediment profile PS76/178-4

description: Erratum (2019-08-08): Parameter name correction from "Carbon, organic, particulate [%]" to "Carbon, organic, total [%]"
DOI: 10.1594/pangaea.811414
title: Biochemical investigation of multicorer sediment profile PS78/171-6

description: Erratum (2019-08-08): Parameter name correction from "Carbon, organic, particulate [%]" to "Carbon, organic, total [%]"
DOI: 10.1594/pangaea.788090
title: Epiphytic orchid community composition in managed and natural moist evergreen Afromontane forest in SW Ethiopia

description: Measured is, for each given orchid species, the number of clumps of the species found in the crown of the sampled tree.
DOI: 10.1594/pangaea.811311
title: Biochemical investigation of multicorer sediment profile PS76/132-2

description: Erratum (2019-08-08): Parameter name correction from "Carbon, organic, particulate [%]" to "Carbon, organic, total [%]"
DOI: 10.1594/pangaea.857933
title: Pollen profile PFr_82_6 at site Friesack 4
DOI: 10.1594/pangaea.903991
title: Biochemical investigation of multicorer sediment profile PS99/046-2

description: To detect and track the impact of large-scale environmental changes in a the transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine experimentally the factors controlling deep-sea biodiversity, the Alfred- Wegener-Institute for Polar and Marine Research (AWI) established the deep-sea long-term observatory HAUSGARTEN, which constitutes the first, and until now only open-ocean long-term station in a polar region. Virtually undisturbed sediment samples have been taken using a video-guided multiple corer (MUC) at 13 HAUSGARTEN stations along a bathymetric (1,000 - 4,000 m water depth) and a latitudinal transect in 2,500 m water depth as well as two stations at 230 and 1,200 m water depth within the framework of the KONGHAU project. Various biogenic sediment compounds were analyzed to estimate the input of organic matter from phytodetritus sedimentation, benthic activities (e.g. bacterial exoenzymatic activity), and the total biomass of the smallest sediment-inhabiting organisms (size range: bacteria to meiofauna).
DOI: 10.1594/pangaea.809079
title: Dominant pelagic amphipods collected as swimmers from mooring time-series staion FEVI1 in 300 m depth at AWI HAUSGARTEN
DOI: 10.1594/pangaea.845622
title: Physical oceanography and current meter data from mooring FEVI28 at Hausgarten IV

description: Gear ID 1: RCM9/11, SN 417; Gear ID 2: RCM9/11, SN 484; Gear ID 3: RCM9/11, SN 488; Gear ID 4: RCM9/11, SN 686; Gear ID 5: CTD-R SBE37, SN 7690; Gear ID 6: CTD-R SBE37, SN 10507
DOI: 10.1594/pangaea.910980
title: Physical oceanography data from mooring J023
DOI: 10.1594/pangaea.984220
title: Crystal c-axes (fabric analyser G50) of ice core samples (vertical thin sections) collected from the polar ice core EGRIP, 111-2651 m depth

description: Polarisation microscopy image data from vertical thin sections from the EGRIP ice core were acquired with a Fabric Analyser (G50, Russell-Head Instruments). 1152 sections from 225 bags were measured in the field camp at EGRIP, Greenland, during field seasons 2017, 2018, 2019, 2022, and 2023. A bag refers to an ice core segment of 55 cm length which is typically cut into six pieces of 9 cm length from which thin sections (approx. 250-300 µm thick, max. 7x9 cm²) are prepared using a manual sledge microtome. The majority of bags are continuously sampled with up to six adjacent samples with a bag interval of approx. 10 +- 6 m. Up to three parallel and/or orthogonal vertical sections were prepared only from ice core volume samples (75% of ice core from bottom of approx. every 200th bag, corresponding to depth of 6th sample in bag). Sample folders are named according to the convention EGRIP\_-\_. Data are not available between 2121 and 2417 m.Each section folders contains a manually prepared mask image (background.bmp) in preparation for image processing to exclude image artefacts from the sample margins. The resolution of the image data is 500 px/cm. Quality images are provided by the instrument as well as images showing crystal c-axis orientation per pixel. The binary file (data.cis) contains all relevant information to evaluate the section with regard to the crystal-preferred orientation (CPO) of the ice thin sections.
description: The sections 375_4, 1588_2 are measured top down. The data files of sections 505_4, 2726_1 are incomplete but can be processed and evaluated.
DOI: 10.1594/pangaea.904003
title: Biochemical investigation of multicorer sediment profile PS99/064-5

description: To detect and track the impact of large-scale environmental changes in a the transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine experimentally the factors controlling deep-sea biodiversity, the Alfred- Wegener-Institute for Polar and Marine Research (AWI) established the deep-sea long-term observatory HAUSGARTEN, which constitutes the first, and until now only open-ocean long-term station in a polar region. Virtually undisturbed sediment samples have been taken using a video-guided multiple corer (MUC) at 13 HAUSGARTEN stations along a bathymetric (1,000 - 4,000 m water depth) and a latitudinal transect in 2,500 m water depth as well as two stations at 230 and 1,200 m water depth within the framework of the KONGHAU project. Various biogenic sediment compounds were analyzed to estimate the input of organic matter from phytodetritus sedimentation, benthic activities (e.g. bacterial exoenzymatic activity), and the total biomass of the smallest sediment-inhabiting organisms (size range: bacteria to meiofauna).
DOI: 10.1594/pangaea.946514
title: Raw physical oceanography and ocean current data from mooring HG-IV-FEVI-40 in the Fram Strait, August 2019 - June 2021

description: Time-series data of physical oceanography, ocean current velocities and carbon/particle export were obtained from mooring HG-IV-FEVI-40 in the Fram Strait in August 2019 - June 2021 as part of the Helmholtz infrastructure program Frontiers in Arctic Marine Monitoring (FRAM) and the long-term monitoring program at AWI HAUSGARTEN. The mooring was deployed during RV POLARSTERN expedition PS121, and recovered during PS126. The attached archive contains raw data files of five Seabird SBE37 microcats (nominal depths: 79m, 257m, 404m, 1204m, 2530m; sampling interval 1h), four Seabird SBE56 temperature loggers (nominal depths: 104m, 154m, 204m, 329m; sampling interval 30s), one Nortek Aquadopp current meter (nominal depth: 754m; sampling interval 20 min), one RDI Longranger ADCP (nominal depth: 413m; sampling interval 1h) and four AADI Seaguard current meters (nominal depths: 207m, 1234m, 2352m, 2528m; sampling interval 1h). The mooring also included three sediment traps (nominal depths: 200m, 1227m, 2345m) and one BioOptical Platform (nominal depth: 569m). Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable.
description: The file HG-IV-FEVI-40.zip includes all available sensor raw data from mooring HG-IV-FEVI-40. The structure of the unzipped folders is mooring-&gt;sensor/sampler type-&gt;serial number-&gt;instrument files. All instruments were synched to UTC before deployment, and the offset after the recovery is supplied in the respective instrument folder, if available. The archive also contains the sensor calibration sheets/files and relevant sampler schedule files, if available. Finally, mooring schematics are also attached as pdfs in the root folder.The authors are grateful to the captains, crews and technical/scientific staff of the expeditions PS121 and PS126 onboard RV Polarstern. Many individuals have contributed to the conception of the research, the preparation of the instruments, the deployment and recoveries, as well as to the retrieval of the data, which we greatly acknowledge. We acknowledge funding from the Helmholtz infrastructure program "Frontiers in Arctic Marine Monitoring", and the Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung.
DOI: 10.1594/pangaea.983422
title: Pollen counts from borehole Sokli B series in Sokli (Finland) in 2002

description: This dataset provides the pollen counts for the Early Weichselian sediment sequence retrieved from Sokli (Finland) in 2002. Counts per pollen taxon are presented against sediment depth (m). Non-pollen palynomorphs (NPPs) were also counted from the pollen slides and these data are presented alongside the pollen counts. The number of Lycopodium spores encountered during analysis are also presented ("exotic"). The pollen dataset provides information on terrestrial and aquatic/telmatic vegetation dynamics (Helmens et al., 2012). A total of 63 samples was analysed, with samples prepared following Fægri & Iversen (1989) with additional sodium polytungstate heavy-liquid separation to remove clastic material. The material was sieved over a 7-8 mm nylon mesh to remove fine particles, mounted in glycerine jelly and sealed with paraffin wax. Fossils were counted using a light microscope (400× magnification). The samples were prepared in the laboratories of VU University Amsterdam, The Netherlands, and counted in the laboratories of Stockholm University, Sweden.
description: The funding was provided by Swedish Nuclear Fuel and Waste Management Company (SKB) and Bolin Centre for Climate Research (Stockholm University).
DOI: 10.1594/pangaea.857930
title: Pollen profile PFr_82_10 at site Friesack 4
DOI: 10.1594/pangaea.984221
title: Crystal c-axes (fabric analyser G50) of ice core samples (horizontal thin sections) collected from the polar ice core EGRIP, 111-2664 m depth

description: Polarisation microscopy image data from horizontal thin sections from the EGRIP ice core were acquired with a Fabric Analyser (G50, Russell-Head Instruments). 66 sections from 18 bags were measured in the field camp at EGRIP, Greenland, during field seasons 2017, 2018, 2019, 2022, and 2023.A bag refers to an ice core segment of 55 cm length which is typically cut into six pieces of 9 cm length from which thin sections (approx. 250-300 µm thick, max. 7x9 cm²) are prepared using a manual sledge microtome. Horizontal sections were prepared only from ice core volume samples (75% of ice core from bottom of approx. every 200th bag, corresponding to depth of 6th sample in bag). Sample folders are named according to the convention EGRIP_-_. Data are not available between 2121 and 2417 m.Each section folders contains a manually prepared mask image (background.bmp) in preparation for image processing to exclude image artefacts from the sample margins. The resolution of the image data is 500 px/cm. Quality images are provided by the instrument as well as images showing crystal c-axis orientation per pixel. The binary file (data.cis) contains all relevant information to evaluate the section with regard to the crystal-preferred orientation (CPO) of the ice thin sections.
description: It is likely that samples 1208_6-top and 1400_6-top were accidentally permuted during data acquisition.Volume sample 400_6 was sliced in 34 horizontal sections.The depth of sample 4843_break_hor is approximate.
DOI: 10.1594/pangaea.903990
title: Biochemical investigation of multicorer sediment profile PS99/045-2

description: To detect and track the impact of large-scale environmental changes in a the transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine experimentally the factors controlling deep-sea biodiversity, the Alfred- Wegener-Institute for Polar and Marine Research (AWI) established the deep-sea long-term observatory HAUSGARTEN, which constitutes the first, and until now only open-ocean long-term station in a polar region. Virtually undisturbed sediment samples have been taken using a video-guided multiple corer (MUC) at 13 HAUSGARTEN stations along a bathymetric (1,000 - 4,000 m water depth) and a latitudinal transect in 2,500 m water depth as well as two stations at 230 and 1,200 m water depth within the framework of the KONGHAU project. Various biogenic sediment compounds were analyzed to estimate the input of organic matter from phytodetritus sedimentation, benthic activities (e.g. bacterial exoenzymatic activity), and the total biomass of the smallest sediment-inhabiting organisms (size range: bacteria to meiofauna).
DOI: 10.1594/pangaea.971123
title: Accumulation rate of sediment core D11956TC/P

description: Sedimentation rate of core D11956TC/P assumed to be constant after linear interpolation between the key-pointers of the hemipelagic record established to construct the age models once turbidites were extracted from the whole records. Units in centimeters per thousand years. For core D11956TC/P, TC stands for trigger core and P for piston core
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.971114
title: δ18O measurements of benthic foraminifera from sediment core MD13-3473

description: Stable O isotopic ratios were analysed in core MD13-3473, collected from the Tore seamount on the Iberian margin, for δ18O. Bulk subsamples of approximately 30 grams each were wet-weighed, freeze-dried, and reweighed, then ultrasonicated in a water bath, washed, and sieved with tap and distilled water into two grain-size fractions (63-150 μm and &gt;150 μm) at the Sedimentology and Micropaleontology Laboratory of IGME-CSIC, Spain. These fractions were dried on paper filters in an oven at 40 ºC and weighed. Then, foraminifera species – approx. 30 individuals of planktonic foraminifera (Globigerina bulloides, Globorotalia inflata, and Orbulina universa), and approx. 10 individuals of benthic foraminifera (Cibicides wuellerstorfi and Cibicides lobatulus) – were picked from the &gt;150 μm fraction in core MD13-3473. In total, 580 samples of core MD13-3473 were measured on a ThermoFisher 253plus gas isotope ratio mass spectrometer connected to a Kiel IV automated carbonate preparation device at MARUM, University of Bremen, Germany. Data were reported in the usual delta-notation versus V-PDB. The instrument was calibrated against the house standard (ground Solnhofen limestone), which in turn was calibrated against the NBS 19 standard reference material. Over the measurement period, the standard deviation of the house standard (uncorrected data) was +/- 0.08‰ for δ18O. Adittionally, 74 samples of MD13-3473 were performed at the GLPR, University of Cambridge, UK. Samples were analysed using a Micromass Multicarb sample preparation system attached to a VG SIRA Mass Spectrometer. The results were reported with reference to the international standard V-PDB, and the precision was better than +/- 0.08‰ for δ18O. For samples with fewer than 5 individuals, the vials were loaded into a carousel and analysed using a Thermo Kiel device attached to a Thermo MAT253 Mass Spectrometer in dual inlet mode. Due to strong carbonate dissolution at -5,500 m water depth, there are insufficient benthic shells (no-foram no-data, NFND), but planktonic isotope data are available (no-benthics, NB), mainly coincident with cold (sub)stages.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.971124
title: Accumulation rate of sediment core D219/3P

description: Sedimentation rate of core D219/3P assumed to be constant after linear interpolation between the key-pointers of the hemipelagic record established to construct the age models once turbidites were extracted from the whole records. Units in centimeters per thousand years.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.971116
title: Ca/Ti ratio of sediment core MD13-3473

description: Sections of core MD13-3473, collected from the Tore seamount on the Iberian margin, were analysed by using non-destructive, continuous X-ray fluorescence (XRF), with an irradiated surface of 5 mm-length (down-core) and 12 mm width (cross-core). The split halves of all sections were carefully scraped and covered with 40 mm-thick film and flattened to the sediment surface removing any air bubbles trapped below. The entire length of MD13-3473 was measured every 1 cm using an Avaatech core scanner at the University of Barcelona, Spain. Spectra were processed with the WinAxiBatch software. For external calibration, the SMAR4 standard supplied by Avaatech (Analytical X-ray Technology, The Netherlands) was used. Two replicates were performed along each of the sixteen 1.5 m-long sections.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.971125
title: Accumulation rate of sediment core MD13-3473

description: Sedimentation rate of core MD13-3473 assumed to be constant after linear interpolation between the key-pointers of the hemipelagic record established to construct the age models once turbidites were extracted from the whole records. Units in centimeters per thousand years.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.845680
title: Pteropod sedimentation at AWI HAUSGARTEN central station HGIV in 2005/2006 (Trap FEVI10)
DOI: 10.1594/pangaea.971117
title: Ca/Ti ratio of sediment core D219-3P

description: The Ca and Ti of core D219/3P from the Portuguese margin was measured at a resolution of 1 cm performed at BOSCORF, Southampton National Center, U.K., using a COX Analytical Systems Itrax X-ray Fluorescence (XRF) scanner, and the data processed with the included bAxil software. The elements considered here (Ca, Ti) were extracted from a series of 15 (10 kV), 17 (30 kV) and 7 (50 kV) elements.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.971118
title: Ca/Ti ratio of sediment core D11956TC/P

description: The Ca and Ti of core D11956T/P from the Tagus Abyssal Plain were measured at a resolution of 2 mm, performed at BOSCORF, Southampton National Center, U.K., using a COX Analytical Systems Itrax X-ray Fluorescence (XRF) scanner, and the data processed with the included bAxil software. The elements considered here (Ca, Ti) were extracted from a series of 15 (10 kV), 17 (30 kV) and 7 (50 kV) elements.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.971119
title: Ca/Ti ratio of sediment core MD03-2698

description: The Ca and Ti of core MD03-2698 from the Portuguese margin were measured within a series of thirteen chemical elements, using a X-Ray Fluorescence (XRF) AVAATECH core-scanner at the BCR-Bremen; units are in counts per area per 30 s (cts). This allows non-destructive, rapid and efficient quantitative analyses done at a 2 cm interval resolution, increased to 1 cm or less in the presence of silty-layers.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.971120
title: Frequency of turbidites of sediment core MD03-2698

description: Record of frequency of turbidites during Heinrich events for the last 68 ka, calculated for intervals of 500 years, for core MD03-2698 from the Portuguese margin.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.971122
title: Element semiquantitative concentration of sediment core D11956TC/P

description: Semiquantitative element concentrations of 8 sections of core D11956TC/P (TC stands for trigger core; P for piston core) from the Tagus Abyssal Plain were measured at a resolution of 2 mm, performed at BOSCORF, Southampton National Center, U.K., using a COX Analytical Systems Itrax X-ray Fluorescence (XRF) scanner, and the data processed with the included bAxil software. The elements considered here (Ca, Al, Si, Ti, Fe, Rb, Sr and Zr) were extracted from a series of 15 (10 kV), 17 (30 kV) and 7 (50 kV) elements. Units are in counts per second (cps). Sediment facies are identified as hemipelagites (HP) and turbidites (T). Consecutive turbidites (without Hemipelagic sediment interlayered) are identified and labeled Ti to Tiv in the type of facies.
description: Projects:Tore-5deglaciations, Award: CTM2017-84113-R
DOI: 10.1594/pangaea.845683
title: Pteropod sedimentation at AWI HAUSGARTEN central station HGIV in 2008/2009 (Trap FEVI18)
DOI: 10.1594/pangaea.811653
title: Bacterial abundance and biomass of multicorer sediment profile PS76/175-3
DOI: 10.1594/pangaea.845628
title: Physical oceanography and current meter data from mooring Lander-2007

description: Gear ID 1: RCM9/11, SN 567
DOI: 10.1594/pangaea.728482
title: Fig. 3: Pollen and spore counts of the Mamontovy Khayata sequences
DOI: 10.1594/pangaea.744613
title: Biochemical investigation of multicorer sediment profile MSM02/812-1
DOI: 10.1594/pangaea.811415
title: Biochemical investigation of multicorer sediment profile PS78/172-1

description: Erratum (2019-08-08): Parameter name correction from "Carbon, organic, particulate [%]" to "Carbon, organic, total [%]"
DOI: 10.1594/pangaea.811417
title: Biochemical investigation of multicorer sediment profile PS78/181-5

description: Erratum (2019-08-08): Parameter name correction from "Carbon, organic, particulate [%]" to "Carbon, organic, total [%]"
DOI: 10.1594/pangaea.845904
title: Pteropod sedimentation at AWI HAUSGARTEN northern station HGN in 2004/2005 (Trap FEVI8)
DOI: 10.1594/pangaea.744611
title: Biochemical investigation of multicorer sediment profile MSM02/803-2
DOI: 10.1594/pangaea.845601
title: Physical oceanography and current meter data from mooring FEVI7 at Hausgarten IV

description: Gear ID 1: RCM9/11, SN 324