cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.941117
title: Raw physical oceanography and bio-optical data from mooring HG-IV-S-3 in the Fram Strait, July 2018 - August 2019

description: Time-series data of physical & biological oceanography, nutrient biogeochemistry and molecular biology were obtained from mooring HG-IV-S-3 in the Fram Strait in July 2018 - August 2019 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 PS114, and recovered during PS121. The attached archive contains raw data files of two Seabird SBE37 microcats (nominal depths: 26m, 52m; sampling interval 1h) and one Wetlabs ECO Triplet fluorometer (nominal depth: 24m; sampling interval 2h). The Wetlabs ECO PAR sensor (nominal depth: 24m; sampling interval 1h) was flooded and all data was lost. The mooring also included a McLane RAS water sampler (nominal depth: 24m) and a McLane PPS phytoplankton sampler (nominal depth: 26m). Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable. The processed data of all sensors will be made available in separate entries.
description: The file HG-IV-S-3.zip includes all available sensor raw data from mooring HG-IV-S-3. 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 PS114 and PS121 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.885284
title: Biochemical investigation of multicorer sediment profile PS80/172-3

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.941160
title: Raw physical oceanography, bio-optical and biogeochemical data from mooring F4-W-1 in the Fram Strait, July 2018 - August 2019

description: Time-series data of physical & biological oceanography, nutrient biogeochemistry and molecular biology were obtained from mooring F4-W-1 in the Fram Strait in July 2018 - August 2019 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 PS114, and recovered during PS121. The attached archive contains raw data files of a profiling SBE19plus system on an NGK winch (nominal depth: 153m), two Seabird SBE37 microcats (nominal depths: 157m, 252m; sampling interval 1h), one Satlantics SUNA nitrate sensor (nominal depth: 252m; sampling interval 4h), one Sunburst SAMI-pCO2 sensor (nominal depth: 252m; sampling interval 1h) and one Sunburst SAMI-pH sensor (nominal depth: 252m; sampling interval 3h). The mooring also included a McLane RAS water sampler (nominal depth: 252m). Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable.
description: The file F4-W-1.zip includes all available sensor raw data from mooring F4-W-1. 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 PS114 and PS121 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.885287
title: Biochemical investigation of multicorer sediment profile PS80/178-3

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.885294
title: Biochemical investigation of multicorer sediment profile PS80/186-3

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.946537
title: Raw physical oceanography, ocean current velocity and bio-optical data from mooring HG-IV-SWIPS-2019 (HG-IV-W-4) in the Fram Strait, August 2019 - June 2021

description: Time-series data of physical oceanography, ocean current velocities and bio-optical seawater properties were obtained from mooring HG-IV-SWIPS-2019 (alternative name: HG-IV-W-4) 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 an integrated profiling SBE52plus system (nominal depth: 125m) and a single AADI Seaguard current meter (nominal depth: 154m; sampling interval: 1h). Due to technical issues with the SWIPS winch, the associated sensors only delivered useful profiling data during the first 2 months, albeit at a higher frequency than originally planned. Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable.
description: The file HG-IV-SWIPS-2019.zip includes all available sensor raw data from mooring HG-IV-SWIPS-2019. 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 from the Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung.
DOI: 10.1594/pangaea.857942
title: Pollen profile PFr_84_5 (replicate) at site Friesack 4
DOI: 10.1594/pangaea.956294
title: Pollen counts in Hashilan Wetland sediment core, western Iran

description: For pollen analysis, standard analytical techniques (Faegri and Iversen, 1989) were applied for pollen extraction. Samples were treated with 10% KOH, 10% HCl, 37% HF and acetolysis. The pollen grains were extracted from the size fraction between 160 and 10 µm sieves and were mounted in silicone oil (2000 cs). Pollen extraction was carried out at the Faculty of Geography, University of Tehran and Faculty of Geoscience, University of Bremen. The pollen data reported here are count data.
DOI: 10.1594/pangaea.845630
title: Physical oceanography and current meter data from mooring Lander-2009

description: Gear ID 1: RCM9/11, SN 692
DOI: 10.1594/pangaea.726742
title: Pollen and spore record of profile LAO14-94
DOI: 10.1594/pangaea.857929
title: Pollen profile PFr_80_X2 at site Friesack 4
DOI: 10.1594/pangaea.969733
title: Raw pollen counts of sediment core MD04-2845 from the Bay of Biscay

description: Deep-sea pollen records from the Western European margin show that during the Last Glacial period, regional vegetation oscillated between steppe and open forest in response to the millennial scale climate variability, Dansgaard-Oeschger, (D-O) cycles and Heinrich events (HE), and that the magnitude of the forest expansions during D-O warming events was modulated by orbital parameters. We present new well-chronologically constrained high-resolution marine pollen records from the Gulf of Lion and Bay of Biscay documenting the NW Mediterranean and SW France vegetation response during Marine Isotope Stages (MIS) 4 and 3 (67-33 ka). The vegetation of these regions is reconstructed by pollen analysis.This dataset presents the composition of vegetation in SW France during the Last Glacial Period (65-35 ka), in particular the pollen taxa recorded in core MD04-2845 (45°21'N, 5°13'W, 4175 m).
DOI: 10.1594/pangaea.857937
title: Pollen profile PFr_83_7A at site Friesack 4
DOI: 10.1594/pangaea.857938
title: Pollen profile PFr_83_7B at site Friesack 4
DOI: 10.1594/pangaea.845598
title: Physical oceanography and current meter data from mooring FEVI3 at Hausgarten IV

description: Gear ID 1: RCM9/11, SN 110
DOI: 10.1594/pangaea.971527
title: The 11,800-year pollen record obtained from Razlomnoe Peat in the Lake Onega region (Eastern Fennoscandia)

description: The 885-cm-long sediment core RZ19 (62°27′53′′N, 34°26′4′′E) was retrieved in 2019 from Razlomnoe Peat (northern shore of Lake Onega), radiocarbon-dated and analysed for pollen and cryptogam spores. The age-depth model suggests continuous sedimentation since ca. 11,800 a BP. A total of 97 sediment samples (each representing a 2-cm layer) were selected for palynological analysis. Palynomorphs were extracted using standard laboratory techniques applied to lacustrine and peat sediments (Fægri and Iversen, 1989; Krikunova et al., 2022). One tablet with a known number of Lycopodium spores was added to each sample prior to chemical treatment in order to calculate pollen concentration (PC, Stockmarr, 1971) and pollen accumulation rates (PAR, Knight et al., 2022). Data contains results of palynological analysis, PC, and published in Krikunova et al. (2024): https://doi.org/10.1016/j.quaint.2024.04.003
DOI: 10.1594/pangaea.930103
title: Palynomorph and pollen-based climate data for the Lateglacial and Holocene of Tenaghi Philippon
DOI: 10.1594/pangaea.744645
title: Biochemical investigation of multicorer sediment profile PS70/175-1
DOI: 10.1594/pangaea.811641
title: Bacterial abundance and biomass of multicorer sediment profile PS76/120-1
DOI: 10.1594/pangaea.845908
title: Pteropod sedimentation at AWI HAUSGARTEN northern station HGN in 2008/2009 (Trap FEVI19)
DOI: 10.1594/pangaea.883782
title: Size-frequency-distributions (gel particle-bacteria and gel particle-gel particle) at central AWI HAUSGARTEN in 2015 (CTD, PS93/050-7 and PS93/050-3)
DOI: 10.1594/pangaea.928813
title: Seabed photographs taken along OFOBS profile MSM95_34-1 during RV MARIA S. MERIAN cruise MSM95
DOI: 10.1594/pangaea.811952
title: Biochemical investigation of multicorer sediment profile PS68/251-2
DOI: 10.1594/pangaea.942179
title: Metadata of mooring F4-OZA in the Fram Strait, September 2018 - July 2020

description: Time series data of hydroacoustics and multi-frequency acoustic backscatter were obtained from mooring F4-OZA in the Fram Strait in September 2018 - July 2020 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 MARIA S. MERIAN expedition MSM76 and recovered during MSM93. The mooring included one ASL Acoustic Zooplankton Fish Profiler (nominal depth: 155m; data archived elsewhere) and one Develogic Sonovault (nominal depth: 836m; data also archived elsewhere). The attached .zip file only contains the mooring diagrams.
description: The authors are grateful to the captains, crews and technical/scientific staff of the expeditions MSM76 and MSM93 onboard RV MARIA S. MERIAN. 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 appreciate. We also 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.897175
title: High resolution movies along OFOS profile PS107_36-6
DOI: 10.1594/pangaea.904541
title: Raw data including physical oceanography from mooring HG-IV-S-2 recovered during POLARSTERN cruise PS114
DOI: 10.1594/pangaea.904545
title: Raw data including physical oceanography from mooring HG-N-FEVI-35 recovered during POLARSTERN cruise PS114
DOI: 10.1594/pangaea.904550
title: Raw data including physical oceanography from mooring R3-1 recovered during POLARSTERN cruise PS114
DOI: 10.1594/pangaea.873997
title: Seabed photographs taken along OFOS profile PS93/058-18 during POLARSTERN cruise PS93.2
DOI: 10.1594/pangaea.904540
title: Raw data including physical oceanography from mooring HG-IV-S-1 recovered during POLARSTERN cruise PS107
DOI: 10.1594/pangaea.834684
title: Inorganic nutrients measured on water bottle samples at AWI HAUSGARTEN during POLARSTERN cruise MSM02/4
DOI: 10.1594/pangaea.956028
title: Nematoda abundance and biomass from iron-enriched sediments at LTER HAUSGARTEN during POLARSTERN cruise PS93

description: Impact of Local Iron Enrichment on the Small Benthic Biota in the deep Arctic Ocean The study assesses the impact of local iron enrichment on the small benthic biota (bacteria, meiofauna) together with environmental parameters indicating the input of food at the deep seafloor. To evaluate the hypothesis that abundance, distribution, and diversity of the small benthic biota varies in relation to a local input of structural steel at the seabed, we analyzed sediment samples and the associated infauna along a short transect with increasing distance to an iron source, i.e., corroding steel weights of a free-falling observational platform (bottom-lander), lying on the seafloor for approximately seven years. Iron-enriched surface sediments in the vicinity of the bottom-weight left in summer 2008 after a short-term deployment of a bottom-lander in 2433 m water depth at the LTER (Long-Term Ecological Research) observation HAUSGARTEN in eastern parts of the Fram Strait were sampled on 28th July 2015 using push-corer (PC) handled by the Remotely Operated Vehicle (ROV) QUEST 4000 (MARUM Center for Marine Environmental Sciences, Germany) during Dive 369 from board RV Polarstern. The block-shaped steel bottom-weights (30 x 30 x 6 cm) were sitting about half of the height sunken into the seafloor and thus, almost not affecting near-bottom currents. During sampling in 2015, the plates were largely corroded. Surface sediments around the plates had an orange-red color with a gradient of decreasing color intensity with increasing distance from the source, i.e., the bottom weight. A total of eight push-corer samples (PC1-8) were taken at approx. regular distances (on average every 18 cm) along a short transect (about 1.5 m) crossing the iron gradient. Push-corers PC1-4 retrieved sediment from heavily impacted sediments, while samples taken from push-corers PC5-8 were visually indistinguishable from background sediments in the wider area. After recovery of the ROV, sediment cores (8 cm in diameter, and 20-25 cm in height) were sub-sampled using plastic syringes with cut-off anterior ends for meiofauna and nematode communities as well as for environmental parameters. The position specified in the data sets (longitude / latitude) refers to the position of the ROV.
DOI: 10.1594/pangaea.904542
title: Raw data including physical oceanography from mooring HG-IV-SWIPS-2016 recovered during POLARSTERN cruise PS114
DOI: 10.1594/pangaea.955996
title: Meiofauna communities from iron-enriched sediments at LTER HAUSGARTEN during POLARSTERN cruise PS93

description: Impact of Local Iron Enrichment on the Small Benthic Biota in the deep Arctic Ocean The study assesses the impact of local iron enrichment on the small benthic biota (bacteria, meiofauna) together with environmental parameters indicating the input of food at the deep seafloor. To evaluate the hypothesis that abundance, distribution, and diversity of the small benthic biota varies in relation to a local input of structural steel at the seabed, we analyzed sediment samples and the associated infauna along a short transect with increasing distance to an iron source, i.e., corroding steel weights of a free-falling observational platform (bottom-lander), lying on the seafloor for approximately seven years. Iron-enriched surface sediments in the vicinity of the bottom-weight left in summer 2008 after a short-term deployment of a bottom-lander in 2433 m water depth at the LTER (Long-Term Ecological Research) observation HAUSGARTEN in eastern parts of the Fram Strait were sampled on 28th July 2015 using push-corer (PC) handled by the Remotely Operated Vehicle (ROV) QUEST 4000 (MARUM Center for Marine Environmental Sciences, Germany) during Dive 369 from board RV Polarstern. The block-shaped steel bottom-weights (30 x 30 x 6 cm) were sitting about half of the height sunken into the seafloor and thus, almost not affecting near-bottom currents. During sampling in 2015, the plates were largely corroded. Surface sediments around the plates had an orange-red color with a gradient of decreasing color intensity with increasing distance from the source, i.e., the bottom weight. A total of eight push-corer samples (PC1-8) were taken at approx. regular distances (on average every 18 cm) along a short transect (about 1.5 m) crossing the iron gradient. Push-corers PC1-4 retrieved sediment from heavily impacted sediments, while samples taken from push-corers PC5-8 were visually indistinguishable from background sediments in the wider area. After recovery of the ROV, sediment cores (8 cm in diameter, and 20-25 cm in height) were sub-sampled using plastic syringes with cut-off anterior ends for meiofauna and nematode communities as well as for environmental parameters. The position specified in the data sets (longitude / latitude) refers to the position of the ROV.
DOI: 10.1594/pangaea.873920
title: High resolution movies along OFOS profile PS93/048-8
DOI: 10.1594/pangaea.896069
title: Physical oceanography measurements during POLARSTERN cruise PS99.2 measured from a Zodiac

description: A small CTD SBE 19plus was deployed manually from a Zodiac driving in parallel to the AUV track.
DOI: 10.1594/pangaea.874002
title: Seabed photographs taken along OFOS profile PS99/056-1 during POLARSTERN cruise PS99.2