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  • 1
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    Burial and origin of permafrost derived carbon in the nearshore zone of the southern Canadian Beaufort Sea (2019)
    PANGAEA
    Details
    Publication Date: 2023-09-26
    Description: Detailed organic geochemical and carbon isotopic (d13C and D14C) analyses are performed on permafrost deposits affected by coastal erosion (Herschel Island, Canadian Beaufort Sea), and adjacent marine sediments (Herschel Basin) to understand the fate of organic carbon in Arctic nearshore environments. We use an end-member model based on the carbon isotopic composition of bulk organic matter to identify sources of organic carbon. Monte Carlo simulations are applied to quantify the contribution of coastal permafrost erosion to the sedimentary carbon budget. The models suggest that 36 % of all carbon released by local coastal permafrost erosion is efficiently trapped and sequestered in the nearshore zone. This highlights the importance of sedimentary traps in environments such as basins, lagoons, troughs and canyons for the carbon sequestration in previously poorly investigated, nearshore areas.
    Keywords: Arctic; AWI_Envi; AWI_PerDyn; Carbon cycling; Coastal erosion; Permafrost; Permafrost Research (Periglacial Dynamics) @ AWI; Polar Terrestrial Environmental Systems @ AWI
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 2
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    (Table 3) Radiocarbon dates and age-depth modelling for sediment core PG2303 (2019)
    PANGAEA
    Details
    Publication Date: 2023-09-26
    Keywords: Age, 14C AMS; Age, dated; Age, dated material; Age, dated standard deviation; Age model, Bacon (Blaauw & Christen, 2011); Arctic; AWI_Envi; AWI_PerDyn; AWI Arctic Land Expedition; CA-Land_2016_YukonCoast_spring; Calendar age; Calendar age, maximum/old; Calendar age, minimum/young; Carbon; Carbon cycling; Coastal erosion; DEPTH, sediment/rock; Event label; Herschel Basin; Laboratory code/label; PC; Permafrost; Permafrost Research (Periglacial Dynamics) @ AWI; PG2303-2; PG2303-4; PG2303-5; PG2303-6; Piston corer; Polar Terrestrial Environmental Systems @ AWI; Yukon_Coast_2016_spring
    Type: Dataset
    Format: text/tab-separated-values, 64 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    (Table 2) Monte Carlo end-member simulation results for the dual carbon isotope model (2019)
    PANGAEA
    Details
    Publication Date: 2023-09-26
    Keywords: Arctic; AWI_Envi; AWI_PerDyn; AWI Arctic Land Expedition; CA-Land_2016_YukonCoast_spring; CA-Land_2016_YukonCoast_summer; Carbon cycling; Coastal erosion; end-member analysis; Event label; Fraction; Fraction, error; GC; Gravity corer; Herschel Basin; Permafrost; Permafrost Research (Periglacial Dynamics) @ AWI; PG2302-1; PG2303-7; PG2305-1; PG2307-1; PG2308-1; PG2312-1; PG2313-1; PG2315-1; PG2316-1; PG2318-1; Polar Terrestrial Environmental Systems @ AWI; van Veen Grab; VGRAB; YC16-LC4; YC16-SC20; Yukon_Coast_2016_spring; Yukon_Coast_2016_summer
    Type: Dataset
    Format: text/tab-separated-values, 72 data points
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  • 4
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    (Table 4) Geochemical results for central basin sediment core PG2303: TOC and δ13C_org for selected intervals (2019)
    PANGAEA
    Details
    Publication Date: 2023-11-30
    Keywords: 24-Ethylcholest-5-en-3beta-ol, fraction; AGE; Age, 14C AMS; Arctic; AWI_Envi; AWI_PerDyn; AWI Arctic Land Expedition; Branched and isoprenoid tetraether index; CA-Land_2016_YukonCoast_spring; Calculated; Calculated after Hopmans et al. (2004); Carbon, organic, total; Carbon cycling; Coastal erosion; DEPTH, sediment/rock; Diploptene ratio; end-member analysis; Event label; Fraction; Fraction, error; Fraction modern carbon, organic; GC; Gravity corer; Herschel Basin; PC; Permafrost; Permafrost Research (Periglacial Dynamics) @ AWI; PG2303-2; PG2303-3; PG2303-4; PG2303-5; PG2303-6; PG2303-7; Piston corer; Polar Terrestrial Environmental Systems @ AWI; Sample ID; Yukon_Coast_2016_spring; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 135 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 5
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    Physical Oceanography measured with CTD on Triaxus topAWI (towed ocean profiler of the AWI) during MERIAN cruise MSM93 (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The MacArtney Triaxus extended version is a remotely operated towed vehicle (ROTV). It is towed behind the ship between 2 and 10 knots and can undulate in a saw tooth pattern between a few meters below the surface and 350m depth. The umbilical provides power and a fiber optic link to sensors that are mounted on the Triaxus (see SensorWeb). The different data streams require separate processing. Here we report the data from the Seabird 911+ dual pumped CTD system mounted on the Triaxus. The provided data are 0.5 second or 0.5 meter averages. The operations included profiling mode and constant depth mode. Depth data comes from the CTD's pressure sensor. Position data (latitude, longitude) comes from the ship's GPS system and is corrected for the length of the umbilical behind the ship. Standard Seabird Data processing (SBE Data Processing) were applied. A front in the open ocean region in the vicinity of the ice edge in Fram Strait was searched for with a ~100km long constant depth Triaxus transect on July 8. When a front had been found, it was surveyed in 3D by parallel UCTD sections and drifters were deployed. The front was followed until July 16 with the repeat of parallel UCTD and Triaxus sections. In total 17 sections were occupied with the Triaxus.
    Keywords: AC3; Arctic Amplification; Attenuation, optical beam transmission; AWI_PhyOce; CTD-TRIAXUS; DATE/TIME; Density, sigma-theta (0); DEPTH, water; Event label; Fluorometer; FRAM; Fram Strait; FRontiers in Arctic marine Monitoring; GPF 18-1_33; Iceland Sea; LATITUDE; LONGITUDE; Maria S. Merian; MSM93; MSM93_103-1; MSM93_103-2; MSM93_105-1; MSM93_105-2; MSM93_106-1; MSM93_21-1; MSM93_49-1; MSM93_71-1; MSM93_97-1; MSM93_97-2; North Greenland Sea; Number of observations; Oxygen; Oxygen saturation; Physical Oceanography @ AWI; Pressure, water; Radiation, photosynthetically active; Salinity; Temperature, water; Temperature, water, potential; TOPR; Towed Ocean Profiler; Triaxus
    Type: Dataset
    Format: text/tab-separated-values, 9056033 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 6
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    Raw data from Triaxus topAWI (towed ocean profiler of the AWI) during MERIAN cruise MSM93 (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The MacArtney Triaxus extended version is a remotely operated towed vehicle (ROTV). It is towed behind the ship between 2 and 10 knots and can undulate in a saw tooth pattern between a few meters below the surface and 350m depth. The umbilical provides power and a fiber optic link to sensors that are mounted on the Triaxus (see SensorWeb). The data collected by the sensors were recorded on separate computers, one computer per sensor (including the flight information from the Triaxus itself). Thus, there are 7 separate data streams saved in separate folders plus a folder with metadata information about the different dives. During long Triaxus operations, new data files would be started approximately every 4 hours, because some of the employed software programs do not allow for backing up of the files while they are still being written to. A front in the open ocean region in the vicinity of the ice edge in Fram Strait was searched for with a ~100km long constant depth Triaxus transect on July 8. When a front had been found, it was surveyed in 3D by parallel UCTD sections and drifters were deployed. The front was followed until July 16 with the repeat of parallel UCTD and Triaxus sections. In total 17 sections were occupied with the Triaxus.
    Keywords: AC3; Arctic Amplification; AWI_PhyOce; Binary Object; Binary Object (File Size); File content; FRAM; Fram Strait; FRontiers in Arctic marine Monitoring; GPF 18-1_33; Iceland Sea; Maria S. Merian; MSM93; MSM93_103-1; MSM93_103-2; MSM93_105-1; MSM93_105-2; MSM93_106-1; MSM93_21-1; MSM93_49-1; MSM93_71-1; MSM93_97-1; MSM93_97-2; North Greenland Sea; Physical Oceanography @ AWI; TOPR; Towed Ocean Profiler; Triaxus
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 7
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    Raw data from 75kHz VM-ADCP (vessel-mounted Acoustic Doppler Current Profiler) during MERIAN cruise MSM93 (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The 75kHz and the 38kHz Teledyne Ocean Surveyor ADCPs built into the hull of RV MERIAN were operated continuously during MSM93 when in waters where diplomatic clearances existed. The data recording was restarted more than once a day to ease subsequent data processing. In the beginning of the cruise various different settings were tried out (see auxiliary information in this data set and information in cruise report). In particular, the 75kHz ADCP was programmed to record vertical bins of 4m size. The goal was to get an increased vertical resolution. However, this was switched back to 8m bins on July 5 in order to achieve a better signal to noise ratio.
    Keywords: AC3; Acoustic Doppler Current Profiler; ADCP; Arctic Amplification; AWI_PhyOce; FRAM; Fram Strait; FRontiers in Arctic marine Monitoring; GPF 18-1_33; Maria S. Merian; MSM93; MSM93_0_Underway-2; North Sea; Physical Oceanography @ AWI; VM-ADCP
    Type: Dataset
    Format: application/zip, 5.6 GBytes
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    DATA PANGAEA
  • 8
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    (Table 1) Organic geochemical and bulk organic carbon isotopic data generated for Herschel Island soils and Herschel Basin sediments (2019)
    PANGAEA
    Details
    Publication Date: 2024-05-15
    Keywords: 24-Ethylcholest-5-en-3beta-ol, fraction; Age, 14C AMS; Age, AMS 14C conventional; Age, dated; Age, error; Arctic; AWI_Envi; AWI_PerDyn; AWI Arctic Land Expedition; Branched and isoprenoid tetraether index; CA-Land_2006_YukonCoast; CA-Land_2009_YukonLakes; CA-Land_2015_YukonCoast; CA-Land_2016_YukonCoast_spring; CA-Land_2016_YukonCoast_summer; Calculated; Calculated after Hopmans et al. (2004); Carbon, organic, total; Carbon and nitrogen and sulfur (CNS) isotope element analyzer, Elementar, Elementar Vario MAX Cube; Carbon cycling; Coastal erosion; Diploptene ratio; Event label; Fraction modern carbon, organic; Fraction modern carbon, organic, error; GC; Gravity corer; HAND; Herschel Basin; Herschel Island, Yukon Territory, Canada; LATITUDE; Location; LONGITUDE; Mass spectrometer Finnigan Delta-S; Permafrost; Permafrost Research (Periglacial Dynamics) @ AWI; PG2302-1; PG2303-7; PG2305-1; PG2307-1; PG2308-1; PG2312-1; PG2313-1; PG2315-1; PG2316-1; PG2318-1; Polar Terrestrial Environmental Systems @ AWI; Sample ID; Sampling by hand; SlpD09-04; SlpD15-PF-BIO; Transect; van Veen Grab; VGRAB; YC06-Col-2; YC16-LC4; YC16-SC20; Yukon_Coast_2006; Herschel 2006; Yukon_Coast_2015; Yukon_Coast_2016_spring; Yukon_Coast_2016_summer; Yukon_Lakes_2009; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 220 data points
    Location Call Number Expected Availability
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  • 9
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    Raw data from UCTD (Underway CTD) during MERIAN cruise MSM93 (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The Teledyne Underway CTD was operated in tow-yo mode: the winch brake is disengaged and the probe is in approximate free-fall at 4m/s to 1m/s vertical speed collecting data for a cast. Then the brake is engaged and the probe is hauled in until it is within 10m horizontal behind the vessel at the sea surface. The winch is then disengaged and the next cast starts. A straight section is collected with the same probe in the water. At the end of the section, the probe is recovered. The data is recorded internally on the probe and only read out once the probe is back on deck. A front in the open ocean region in the vicinity of the ice edge in Fram Strait was searched for with a ~100km long constant depth Triaxus transect on July 8. When a front had been found, it was surveyed in 3D by parallel UCTD sections and drifters were deployed. The front was followed until July 16 with the repeat of parallel UCTD and Triaxus sections. During one UCTD section, an operator error resulted in the fact that the probe appeared to have been started while in fact it had not been started before deployment. In total 21 sections were occupied excluding the section where no data was recorded (station MSM93_62-1).
    Keywords: AC3; Arctic Amplification; AWI_PhyOce; CTD, underway; CTD-UW; FRAM; Fram Strait; FRontiers in Arctic marine Monitoring; GPF 18-1_33; Maria S. Merian; MSM93; MSM93_53-1; MSM93_54-1; MSM93_55-1; MSM93_60-1; MSM93_62-1; MSM93_63-1; MSM93_64-1; MSM93_65-1; MSM93_79-1; MSM93_80-1; MSM93_82-1; MSM93_83-1; MSM93_85-1; MSM93_87-1; MSM93_87-2; MSM93_89-1; MSM93_91-1; MSM93_93-1; MSM93_94-1; MSM93_95-1; North Greenland Sea; Physical Oceanography @ AWI; underway CTD
    Type: Dataset
    Format: application/zip, 14.3 MBytes
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 10
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    Physical Oceanography measured with UCTD (Underway CTD) during MERIAN cruise MSM93 (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The Teledyne Underway CTD was operated in tow-yo mode: the winch brake is disengaged and the probe is in approximate free-fall at 4m/s to 1m/s vertical speed collecting data for a cast. Then the brake is engaged and the probe is hauled in until it is within 10m horizontal behind the vessel at the sea surface. The winch is then disengaged and the next cast starts. A straight section is collected with the same probe in the water. At the end of the section, the probe is recovered. The data is recorded internally on the probe and only read out once the probe is back on deck. Here we provide 1 m vertically averaged data from the downcasts. The processing follows Ullman and Hebert: “Processing of Underway CTD Data”, Journal of Atmospheric and Oceanic Technology (2014), https://doi.org/10.1175/JTECH-D-13-00200.1. A front in the open ocean region in the vicinity of the ice edge in Fram Strait was searched for with a ~100km long constant depth Triaxus transect on July 8. When a front had been found, it was surveyed in 3D by parallel UCTD sections and drifters were deployed. The front was followed until July 16 with the repeat of parallel UCTD and Triaxus sections. During one UCTD section, an operator error resulted in the fact that the probe appeared to have been started while in fact it had not been started before deployment. In total 21 sections were occupied excluding the section where no data was recorded (station MSM93_62-1).
    Keywords: AC3; Arctic Amplification; AWI_PhyOce; Calculated; CTD, underway; CTD/Rosette; CTD-RO; CTD-UW; DATE/TIME; Density, sigma-theta (0); DEPTH, water; DRIFT; Drifter; Event label; FRAM; Fram Strait; FRontiers in Arctic marine Monitoring; GPF 18-1_33; LATITUDE; LONGITUDE; Maria S. Merian; MSM93; MSM93_53-1; MSM93_54-1; MSM93_55-1; MSM93_56-1; MSM93_60-1; MSM93_63-1; MSM93_64-1; MSM93_65-1; MSM93_80-1; MSM93_81-1; MSM93_82-1; MSM93_83-1; MSM93_85-1; MSM93_87-1; MSM93_87-2; MSM93_89-1; MSM93_91-1; MSM93_93-1; MSM93_94-1; MSM93_95-1; North Greenland Sea; Physical Oceanography @ AWI; Pressure, water; Salinity; Temperature, water; Temperature, water, potential; underway CTD
    Type: Dataset
    Format: text/tab-separated-values, 316450 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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