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  • Data  (240)
  • PANGAEA  (240)
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  • PANGAEA  (240)
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  • 1
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    Submarine Permafrost Map (SuPerMAP), modeled with CryoGrid 2, Circum-Arctic (2020)
    PANGAEA
    In:  Supplement to: Overduin, Pier Paul; Schneider von Deimling, Thomas; Miesner, Frederieke; Grigoriev, Mikhail N; Ruppel, Carolyn D; Vasiliev, Alexander A; Lantuit, Hugues; Juhls, Bennet; Westermann, Sebastian (2019): Submarine Permafrost Map in the Arctic Modeled Using 1‐D Transient Heat Flux (SuPerMAP). Journal of Geophysical Research: Oceans, 124(6), 3490-3507, https://doi.org/10.1029/2018JC014675
    Details
    Publication Date: 2023-07-19
    Description: This data set contains a first‐order estimate of distribution, thickness and ice-content of submarine permafrost on the Arctic shelf based on a numerical heat transfer model. Our model uses dynamic upper boundary conditions that synthesize Earth System Model air temperature, ice mass distribution and thickness, and global sea level reconstruction and applies globally distributed geothermal heat flux as a lower boundary condition. Sea level reconstruction accounts for differences between marine and terrestrial sedimentation history. Sediment composition and pore water salinity are integrated in the model. Model runs for 450 ka for cross‐shelf transects were used to initialize the model for circumarctic modeling for the past 50 ka.This data set consists of current sea levels, and permafrost depth [m below sea floor(m bsf)], total ice-content [m³ / m²] and enthalpy [MJ / m²] at times 50ka, 25ka and 0a before industrialization for 15892 locations on the Arctic shelf. Additionally zonations for permafrost depth and ice-content are given as layer files. Based on the undertaken sensitivity studies zones with 〈100m permafrost are uncertain, zones with 100-300m are probable, and zones with 〉300m are confident.
    Keywords: Arctic; AWI_PerDyn; Cryosphere; Enthalpy; File format; File name; File size; MULT; Multiple investigations; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; Permafrost; Permafrost Depth; Permafrost Research (Periglacial Dynamics) @ AWI; sea level; Submarine Permafrost; Total Ice Content; trans-Arctic; Uniform resource locator/link to file; Water Depth
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
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  • 2
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    Hydroacoustic data Eckernförde Bay, Germany aquired during ALKOR cruise AL447 and Elisabeth Mann Borgese EMB187, with links to files (2020)
    PANGAEA
    Details
    Publication Date: 2023-12-05
    Description: This multibeam echo sounder (MBES) bathymetry data and backscatter data, as well as subbottom profiler data, was acquired in Eckernförde Bay, Germany. The MBES data were acquired using an EM2040c system which was installed on R/V Alkor (Cruise AL447 - 2014). It operates with a 200-400 kHz transducer combined with a CodaOctupus F180 motion sensor. The survey was designed to provide high-resolution bathymetry with 0.5 x 0.5 m resolution. The bathymetry data were post-processed using sound velocity profiles acquired at regular intervals. Tidal corrections were applied using the tidal gauge in Eckernförde with reference to NHN, DHHN92. The backscatter amplitude data were corrected for the variation with grazing angle. We ensured the highest possible resolution by using the raw backscatter time-series data for each footprint (snippets) and compensated for the angle of incidence using reference grids. Subbottom profiler data were acquired with the R/V Alkor and R/V Elisabeth Mann Borgese in late October 2014 (cruise AL447), the beginning of July 2018 (cruise EMB187). The data were acquired using a parametric Innomar SES-2000 medium system creating secondary peak frequencies between 4 and 15 kHz.
    Keywords: AL447; AL447_1341-1; AL447_1372-1; Alkor (1990); Bathymetry; Elisabeth Mann Borgese; EMB187; EMB187_1-1; Event label; File content; File format; File name; File size; MB; Multibeam; Sub-bottom profiler, SES-2000, Innomar; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 25 data points
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  • 3
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    Gridded bathymetry from soundings during POSEIDON cruise POS469 (2015)
    PANGAEA
    Details
    Publication Date: 2024-01-05
    Keywords: ECO2; MB; Multibeam; Panarea; POS469; POS469-track; Poseidon; Sub-seabed CO2 Storage: Impact on Marine Ecosystems
    Type: Dataset
    Format: application/octet-stream, 1.8 MBytes
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  • 4
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    Gridded bathymetry from soundings during URANIA cruise PaCO2 (2015)
    PANGAEA
    Details
    Publication Date: 2024-01-05
    Keywords: ECO2; File content; MULT; Multiple investigations; PaCO2; PaCO2-track; Panarea; Sub-seabed CO2 Storage: Impact on Marine Ecosystems; U10/2011; Uniform resource locator/link to raw data file; Urania
    Type: Dataset
    Format: text/tab-separated-values, 4 data points
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  • 5
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    Geochemical, lithological, and geochronological characteristics of sediment samples from thermokarst deposits in Siberia and Alaska 1998-2016 (2020)
    PANGAEA
    In:  Alfred Wegener Institute - Research Unit Potsdam
    Details
    Publication Date: 2024-01-27
    Keywords: Age, dated; Age, error; Age, radiocarbon; Alaskan North Slope; AWI_Perma; Carbon, organic, total; Central Laptev Sea; climate feedbacks; Density, bulk, permafrost; DEPTH, sediment/rock; Dmitry Laptev Strait; Event label; Greenhouse gas source; Height above sea level; Ice content, intrasedimentary ice; Identification; IPA Action Group: The Yedoma Region; Kolyma Lowland; Late Pleistocene; Latitude of event; Lena Delta; Longitude of event; MULT; Multiple investigations; New Siberian Achipelago; Permafrost; Permafrost Research; PETA-CARB; PETA-CARB_ID1; PETA-CARB_ID14; PETA-CARB_ID15; PETA-CARB_ID17; PETA-CARB_ID18; PETA-CARB_ID19; PETA-CARB_ID22; PETA-CARB_ID4; PETA-CARB_ID6; PETA-CARB_ID8; PETA-CARB_ID9; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; Sample code/label; Seward Peninsula; thermokarst; Western Laptev Sea; Yedoma; Yedoma_Region; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 1553 data points
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  • 6
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    Geochemical, lithological, and geochronological characteristics of sediment samples from Yedoma and thermokarst deposit sites in Siberia and Alaska 1998-2016 (2020)
    PANGAEA
    In:  Alfred Wegener Institute - Research Unit Potsdam
    Details
    Publication Date: 2024-01-27
    Keywords: Alaska; Alaskan North Slope; Area/locality; AWI_Perma; Beaufort Sea; Central Laptev Sea; climate feedbacks; Coverage; Density, bulk, permafrost; Dmitry Laptev Strait; Event label; Greenhouse gas source; Identification; IPA Action Group: The Yedoma Region; Kolyma Lowland; Late Pleistocene; LATITUDE; Layer thickness; Lena Delta; LONGITUDE; MULT; Multiple investigations; New Siberian Achipelago; Permafrost; Permafrost Research; PETA-CARB; PETA-CARB_ID1; PETA-CARB_ID10; PETA-CARB_ID11; PETA-CARB_ID12; PETA-CARB_ID13; PETA-CARB_ID14; PETA-CARB_ID15; PETA-CARB_ID16; PETA-CARB_ID17; PETA-CARB_ID18; PETA-CARB_ID19; PETA-CARB_ID2; PETA-CARB_ID20; PETA-CARB_ID21; PETA-CARB_ID22; PETA-CARB_ID23; PETA-CARB_ID24; PETA-CARB_ID25; PETA-CARB_ID26; PETA-CARB_ID27; PETA-CARB_ID3; PETA-CARB_ID4; PETA-CARB_ID5; PETA-CARB_ID6; PETA-CARB_ID7; PETA-CARB_ID8; PETA-CARB_ID9; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; Sample amount; Seward Peninsula; Site; thermokarst; Western Laptev Sea; Yedoma; Yedoma_Region
    Type: Dataset
    Format: text/tab-separated-values, 193 data points
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  • 7
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    Geochemical, lithological, and geochronological characteristics of sediment samples from Yedoma deposits in Siberia and Alaska 1998-2016 (2020)
    PANGAEA
    In:  Alfred Wegener Institute - Research Unit Potsdam
    Details
    Publication Date: 2024-01-27
    Keywords: Age, dated; Age, error; Age, radiocarbon; Alaska; Alaskan North Slope; AWI_Perma; Beaufort Sea; Carbon, organic, total; Central Laptev Sea; climate feedbacks; Density, bulk, permafrost; DEPTH, sediment/rock; Dmitry Laptev Strait; Event label; Greenhouse gas source; Height above sea level; Ice content, intrasedimentary ice; Ice wedge content; Identification; IPA Action Group: The Yedoma Region; Kolyma Lowland; Late Pleistocene; Latitude of event; Lena Delta; Longitude of event; MULT; Multiple investigations; New Siberian Achipelago; Permafrost; Permafrost Research; PETA-CARB; PETA-CARB_ID1; PETA-CARB_ID10; PETA-CARB_ID11; PETA-CARB_ID12; PETA-CARB_ID13; PETA-CARB_ID14; PETA-CARB_ID15; PETA-CARB_ID16; PETA-CARB_ID17; PETA-CARB_ID2; PETA-CARB_ID20; PETA-CARB_ID21; PETA-CARB_ID22; PETA-CARB_ID23; PETA-CARB_ID24; PETA-CARB_ID25; PETA-CARB_ID26; PETA-CARB_ID27; PETA-CARB_ID3; PETA-CARB_ID4; PETA-CARB_ID5; PETA-CARB_ID6; PETA-CARB_ID7; PETA-CARB_ID8; PETA-CARB_ID9; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; Sample code/label; thermokarst; Western Laptev Sea; Yedoma; Yedoma_Region; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 5074 data points
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  • 8
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    Continuous thermosalinograph oceanography along RV Maria S. Merian cruise MSM98/2 (2021)
    PANGAEA
    Details
    Publication Date: 2024-02-16
    Description: Underway temperature and salinity data was collected along the cruise track with two autonomous measurement systems. Usually, the systems are changed after 6 hours. While temperature is taken at the water inlet in about 6.5 m depth, salinity is estimated within the interior measurement container from conductivity and interior temperature. Salinity was calibrated independently for both measurement containers (MCs). No correction was done for temperature. For details to all processing steps see Data Processing Report.
    Keywords: Calculated from internal temperature and conductivity; Conductivity; DAM_Underway; DAM Underway Research Data; DATE/TIME; DEPTH, water; Digital oceanographic thermometer, Sea-Bird, SBE 38; GPF 20‐3 073; LATITUDE; LONGITUDE; Maria S. Merian; Measurement container; MSM98/2; MSM98/2_0_Underway-2; North Sea; Quality flag, salinity; Quality flag, water temperature; Salinity; Seadatanet flag: Data quality control procedures according to SeaDataNet (2010); Temperature, water; Temperature, water, internal; Thermosalinograph; Thermosalinograph, Sea-Bird, SBE 45; TSG
    Type: Dataset
    Format: text/tab-separated-values, 238541 data points
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  • 9
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    Continuous thermosalinograph oceanography along RV MARIA S. MERIAN cruise MSM98/2 (2022)
    PANGAEA
    Details
    Publication Date: 2024-02-16
    Description: Underway temperature and salinity data was collected along the cruise track with two autonomous measurement systems. Usually, the systems are changed after 6 hours. While temperature is taken at the water inlet in about 6.5 m depth, salinity is estimated within the interior measurement container from conductivity and interior temperature. Salinity was calibrated independently for both measurement containers (MCs). No correction was done for temperature. For details to all processing steps see Data Processing Report.
    Keywords: Calculated from internal temperature and conductivity; Conductivity; DAM_Underway; DAM Underway Research Data; DATE/TIME; DEPTH, water; Digital oceanographic thermometer, Sea-Bird, SBE 38; GPF 20‐3 073; LATITUDE; LONGITUDE; Maria S. Merian; Measurement container; MSM98/2; MSM98/2_0_Underway-2; North Sea; Quality flag, salinity; Quality flag, water temperature; Salinity; Seadatanet flag: Data quality control procedures according to SeaDataNet (2010); Temperature, water; Temperature, water, internal; Thermosalinograph; Thermosalinograph, Sea-Bird, SBE 45; TSG
    Type: Dataset
    Format: text/tab-separated-values, 238541 data points
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  • 10
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    Master track of Maria S. Merian cruise MSM98/2 in 1 sec resolution (zipped, 13.6 MB) (2021)
    PANGAEA
    In:  Institut für Geowissenschaften, Christian-Albrechts-Universität, Kiel
    Details
    Publication Date: 2024-04-20
    Description: Raw data acquired by position sensors on board RV MERIAN during expedition MSM98_2 were processed to receive a validated master track which can be used as reference of further expedition data. During MSM98_2 the motion reference unit Kongsberg SeaTex AS MRU-5 combined with Kongsberg SeaTex AS Seapath 320 and the GPS receivers Trimble SPS855 and SAAB R4 were used as navigation sensors. Data were downloaded from DAVIS SHIP data base (https://dship.bsh.de) with a resolution of 1 sec. Processing and evaluation of the data is outlined in the data processing report. Processed data are provided as a master track with 1 sec resolution derived from the position sensors' data selected by priority and a generalized track with a reduced set of the most significant positions of the master track.
    Keywords: 1 sec resolution; Atlantic; CT; DAM_Underway; DAM Underway Research Data; GPF 20‐3 073; Maria S. Merian; MSM98/2; MSM98/2-track; Underway cruise track measurements
    Type: Dataset
    Format: application/zip, 13.3 MBytes
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