cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.956001
title: Environmental parameters of 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.964034
title: Raw physical oceanography and ocean current velocity data from mooring F4-20 in the Fram Strait, June 2021 – July 2022

description: Time-series data of physical oceanography, ocean current velocities and ocean acoustics were obtained from mooring F4-20 in the Fram Strait from June 2021 to July 2022 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 PS126 and recovered during PS131. The attached archive contains raw data files of seven Seabird SBE37 MicroCATs (nominal depths: 76m, 153m, 253m, 402m, 502m, 727m, 1204m; sampling interval 15m/1h), four Seabird SBE56 temperature loggers (nominal depths: 53m, 103m, 203m, 323m; sampling interval 60s), one RDI Workhorse 300kHz ADCP (nominal depth: 53m; sampling interval 60s), one RDI Longranger ADCP (nominal depth: 382m; sampling interval 1h) and two AADI RCM11 current meter (nominal depths: 726m, 1205m; sampling interval 1h). The mooring also included an ASL Acoustic Zooplankton Fish Profiler (nominal depth: 103m, data archived elsewhere) and a Develogic Sonovault (nominal depth: 805m, data archived elsewhere). Auxiliary information such as sensor calibration sheets, mooring diagrams, and schedule files are also provided, if applicable. The SBE37 at 253m had power issues and stopped recording after ~5 months.
description: The file F4-20.zip includes all available sensor raw data from mooring F4-20. 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 PS126 and PS131 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 appreciate. 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.744650
title: Biochemical investigation of multicorer sediment profile PS70/194-1
DOI: 10.1594/pangaea.857507
title: Carbon dioxide measurements along AUV track MSM29_440-5

description: Within the framework of the Arctic expedition MSM29 in June / July 2013 (RV Maria S. Merian), AWI's autonomous underwater vehicle (AUV) "PAUL" was deployed in the marginal ice zone of the Fram Strait. The scientific payload included a Contros HydroC pCO2 sensor.The vehicle conducted two 10 km long transects which were orientated perpendicularly to the ice associated meltwater front. Along its path, the vehicle recorded 22 vertical profiles of the water column (between 50 m water depth and the surface).The data have not been corrected with regard to the sensor's response time.
DOI: 10.1594/pangaea.811608
title: Bacterial abundance and biomass of surface sediments at AWI-HAUSGARTEN sampled during expedition ARK-XV/1
DOI: 10.1594/pangaea.861858
title: Physical oceanography and current meter data from mooring FEVI30 at Hausgarten IV

description: Gear ID: 1, SBE37, SN 9474; Gear ID: 2, SBE37, SN 10508; Gear ID: 3, RCM9/11, SN 493; Gear ID: 4, RCM9/11, SN 438; Gear ID: 5, RCM9/11, SN 562; Gear ID: 6, RCM9/11, SN 687
DOI: 10.1594/pangaea.946508
title: Raw physical oceanography, bio-optical and biogeochemical data from mooring F4-S-4 in the Fram Strait, August 2019 - June 2021

description: Time-series data of physical oceanography, nutrient biogeochemistry, molecular biology and carbon/particle export were obtained from mooring F4-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 PS121, and recovered during PS126. The attached archive contains raw data files of two Seabird SBE37 microcats (nominal depths: 16m, 21m, 47m; sampling interval 1h), one Seabird SBE56 temperature logger (nominal depth: 38m; sampling interval: 30s), one Wetlabs ECO PAR sensor (nominal depth: 21m; sampling interval 2h), one Wetlabs ECO Triplet fluorometer (nominal depth: 21m; sampling interval 2h), one Satlantics SUNA nitrate sensor (nominal depth: 21m; sampling interval 6h), one Sunburst SAMI-pCO2 sensor (nominal depth: 21m; sampling interval 2h) and one Sunburst SAMI-pH sensor (nominal depth: 21m; sampling interval 3h). The mooring also included a McLane RAS water sampler (nominal depth: 21m), a McLane PPS phytoplankton sampler (nominal depth: 23m) and two sediment traps (nominal depths: 204m, 613m). Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable.
description: The file F4-S-4.zip includes all available sensor raw data from mooring F4-S-4. 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.845684
title: Pteropod sedimentation at AWI HAUSGARTEN central station HGIV in 2001/2002 (Trap FEVI2)
DOI: 10.1594/pangaea.946513
title: Raw physical oceanography and ocean current velocity data from mooring HG-N-S-1 in the Fram Strait, September 2019 - June 2021

description: Time-series data of physical oceanography and ocean current velocities were obtained from mooring HG-N-S-1 in the Fram Strait in September 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: 29m, 45m, 72m, 244m, 394m; sampling interval 1h), five Seabird SBE56 temperature loggers (nominal depths: 39m, 94m, 144m, 315m; sampling interval 30s), one upward-looking RDI Workhorse 300kHz ADCP (nominal depth: 44m; sampling interval 1h) and one upward-looking RDI Workhorse Longranger ADCP (nominal depth: 394m; sampling interval 1h). The top float and attached SBE37 were lost a few months after deployment. Consequently, the upper 50 m of line, including one SBE37, two SBE56s and the 300kHz ADCP fell below the second set of floats at 50 m, which makes the ADCP data basically unusable. One SBE56 (nominal depth: 194m) was also lost due to a failure of the plastic attachment. Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable.
description: The file HG-N-S-1.zip includes all available sensor raw data from mooring HG-N-S-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 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.400975
title: Biochemical investigation of multicorer sediment profile PS66/104-1
DOI: 10.1594/pangaea.400979
title: Biochemical investigation of multicorer sediment profile PS66/114-2
DOI: 10.1594/pangaea.885281
title: Biochemical investigation of multicorer sediment profile PS80/168-7

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.845603
title: Physical oceanography and current meter data from mooring FEVI9 at Hausgarten South

description: Gear ID 1: RCM9/11, SN 110
DOI: 10.1594/pangaea.857931
title: Pollen profile PFr_82_11 at site Friesack 4
DOI: 10.1594/pangaea.928788
title: Seabed photographs taken along OFOBS profile MSM95_46-1 during RV MARIA S. MERIAN cruise MSM95
DOI: 10.1594/pangaea.946530
title: Raw physical oceanography and ocean current velocity data from mooring F4-19 in the Fram Strait, August 2019 - June 2021

description: Time-series data of physical oceanography, ocean current velocities and hydroacoustics were obtained from mooring F4-19 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 7 Seabird SBE37 microcats (nominal depths: 76m, 153m, 253m, 402m, 502m,731m, 1204m; sampling interval 1h), four Seabird SBE56 temperature loggers (nominal depths: 53m, 102m, 203m, 323m; sampling interval 30s), one upward-looking RDI Workhorse 300kHz ADCP (nominal depth: 53m; sampling interval 1h), one upward-looking RDI Workhorse Longranger ADCP (depth: 382m; sampling interval 1h) and two Nortek Aquadopp current meters (nominal depths: 730m, 1205m; sampling interval 20min). The 300 kHz ADCP stopped recording after 3 months due to a battery failure. The mooring also included an ASL Acoustic Zooplankton Fish Profiler (nominal depth: 103m; data archived elsewhere) and a Develogic Sonovault (nominal depth: 800m; data archived elsewhere). Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable.
description: The file F4-19.zip includes all available sensor raw data from mooring F4-19. 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.809083
title: Dominant pelagic amphipods collected as swimmers from mooring time-series staion FEVI18 in 300 m depth at AWI HAUSGARTEN
DOI: 10.1594/pangaea.834718
title: Inorganic nutrients measured on water bottle samples at AWI HAUSGARTEN during POLARSTERN cruise ARK-XXI/1b
DOI: 10.1594/pangaea.928816
title: Seabed photographs taken along OFOBS profile MSM95_38-1 during RV MARIA S. MERIAN cruise MSM95
DOI: 10.1594/pangaea.845602
title: Physical oceanography and current meter data from mooring FEVI8 at Hausgarten North

description: Gear ID 1: RCM9/11, SN 326
DOI: 10.1594/pangaea.845617
title: Physical oceanography and current meter data from mooring FEVI23 at Hausgarten North

description: Gear ID 1: RCM9/11, SN 109; Gear ID 2: RCM9/11, SN 110; Gear ID 3: RCM9/11, SN 484; Gear ID 4: RCM9/11, SN 691; Gear ID 5: CTD-R SBE37, SN 7691
DOI: 10.1594/pangaea.811615
title: Bacterial abundance and biomass of surface sediments at AWI-HAUSGARTEN sampled during expedition ARK-XXII/1c
DOI: 10.1594/pangaea.845624
title: Physical oceanography and current meter data from mooring Lander-2003

description: Gear ID 1: RCM9/11
DOI: 10.1594/pangaea.759806
title: (Table S1) Dinoflagellate cysts, pollen and spores of sediment core ABC26
DOI: 10.1594/pangaea.855464
title: Biogenic particle flux at AWI HAUSGARTEN central station HGIV from mooring FEVI2
DOI: 10.1594/pangaea.811616
title: Bacterial abundance and biomass of surface sediments at AWI-HAUSGARTEN sampled during expedition ARK-XXIII/2
DOI: 10.1594/pangaea.903948
title: Biochemical investigation of multicorer sediment profile PS85/470-3

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.811404
title: Biochemical investigation of multicorer sediment profile PS78/151-3

description: Erratum (2019-08-08): Parameter name correction from "Carbon, organic, particulate [%]" to "Carbon, organic, total [%]"
DOI: 10.1594/pangaea.811416
title: Biochemical investigation of multicorer sediment profile PS78/180-1

description: Erratum (2019-08-08): Parameter name correction from "Carbon, organic, particulate [%]" to "Carbon, organic, total [%]"
DOI: 10.1594/pangaea.873923
title: High resolution movies along OFOS profile PS93/062-1
DOI: 10.1594/pangaea.269046
title: Biochemical investigation of multicorer sediment profile PS62/170-2

description: Depth, sediment = habitat depth
DOI: 10.1594/pangaea.809439
title: Deep-water amphipods from mooring time-series FEVI10 in 1230 and 2357 m depth at AWI HAUSGARTEN
DOI: 10.1594/pangaea.873925
title: High resolution movies along OFOS profile PS99/042-10
DOI: 10.1594/pangaea.941439
title: Pollen and spores of the KP peat core from the Kampar Peninsula, Riau, Sumatra Indonesia

description: A multi-proxy palaeoecological investigation including pollen and spore, loss-on-ignition, total organic carbon, stable carbon isotope and micro- and macrocharcoal was carried out on two peat cores collected from coastal area in eastern Sumatra. The study was conducted to understand the development and dynamics of the coastal peatlands, the Kampar Peninsula in Sumatra. Pollen and spore was extracted following Faegri and Iversen (1989) and identified using available literature (e.g. Anderson and Muller, 1975; Cheng et al., 2020; Hofmann et al., 2019; Jones and Pearce, 2015; Pollen and Spore Image Database of the University of Goettingen).
DOI: 10.1594/pangaea.983909
title: Grain properties and crystal-preferred orientation for EGRIP ice core samples (vertical sections), 111-2651 m depth

description: Fabric Analyser (G50, Russell-Head Instruments) image data from vertical 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. 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 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). 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_-_.
DOI: 10.1594/pangaea.941813
title: Pollen and spores of the KTG core, Katingan, Central Kalimantan, Borneo, Indonesia

description: A multi-proxy palaeoecological investigation including pollen and spore, loss-on-ignition, total organic carbon, stable carbon isotope and micro- and macrocharcoal was carried out on two peat cores collected from coastal area in southern Borneo. The study was conducted to understand the development and dynamics of the coastal peatlands, the Katingan in Borneo. Pollen and spore was extracted follwing Faegri and Iversen (1989) and identified using available literature (e.g. Anderson and Muller, 1975; Cheng et al., 2020; Hofmann et al., 2019; Jones and Pearce, 2015; Pollen and Spore Image Database of the University of Goettingen).
DOI: 10.1594/pangaea.811611
title: Bacterial abundance and biomass of surface sediments at AWI-HAUSGARTEN sampled during expedition ARK-XVIII/2
DOI: 10.1594/pangaea.855467
title: Biogenic particle flux at AWI HAUSGARTEN central station HGIV from mooring FEVI10
DOI: 10.1594/pangaea.904534
title: Raw data including physical oceanography from mooring F4-S-2 recovered during POLARSTERN cruise PS114
DOI: 10.1594/pangaea.967215
title: Megafauna density observed using OFOS at the station HAUSGARTEN-I, 2017-2022

description: In 2017 - 2022, the Ocean Floor Observation System (OFOS) was used to survey epibenthic megafauna at the station HAUSGARTEN-I (79 N, 6 E, 1300 m depth). Data were collected every year except 2020 over a set transect. Images were collected automatically every 30 seconds, and additional images were collected manually when objects of interest came into view. For analysis, 90 automatically-recorded images were selected, with 30 each from the beginning, middle, and end of the transect. Images were individually viewed using the BIIGLE online image analysis tool, and all megafauna were annotated with identifications at the lowest possible taxonomic level. The area of each image was calculated using three parallel lasers mounted on the OFOS a known distance apart and visible in the images. Data represented here are the densities (individuals m^-2) for each species or morphotype in each image.