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  • PANGAEA  (20)
  • AGU  (1)
  • 2020-2024  (21)
  • 2005-2009
  • 1980-1984
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Keywords
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Year
  • 1
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    Intensification of Near‐Surface Currents and Shear in the Eastern Arctic Ocean (2020)
    AGU | Wiley
    Details
    Publication Date: 2023-02-08
    Description: A 15-year (2004–2018) record of mooring observations from the upper 50 m of the ocean in the eastern Eurasian Basin reveals increased current speeds and vertical shear, associated with an increasing coupling between wind, ice, and the upper ocean over 2004–2018, particularly in summer. Substantial increases in current speeds and shears in the upper 50 m are dominated by a two times amplification of currents in the semidiurnal band, which includes tides and wind-forced near-inertial oscillations. For the first time the strengthened upper ocean currents and shear are observed to coincide with weakening stratification. This coupling links the Atlantic Water heat to the sea ice, a consequence of which would be reducing regional sea ice volume. These results point to a new positive feedback mechanism in which reduced sea ice extent facilitates more energetic inertial oscillations and associated upper-ocean shear, thus leading to enhanced ventilation of the Atlantic Water.
    Type: Article , PeerReviewed
    Format: text
    Format: text
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    PAPER (OCEANREP)
  • 2
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    Steric height and bottom pressure water equivalent derived from mooring data at the shelf break north of the Arctic Cape (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: This dataset has been created as a comparative dataset for assessment of satellite-derived sea level anomaly in the publication Doglioni et al. (2022). The dataset includes two time series, one of steric height and another of bottom pressure equivalent height, respectively computed from moored temperature and salinity data and ocean bottom pressure records at the Arctic Cape shelf break. Data were collected between October 2015 and July 2018 in the framework of the project Changing Arctic Transpolar System (CATS mooring AK3). Temperature and salinity were linearly interpolated between the shallowest sensor (50 m) and the deepest sensor (1448 m) onto a regular pressure grid with vertical spacing of 2 m. Constant extrapolation was performed above the shallowest sensor and no extrapolation was performed below the deepest sensor. Temperature and salinity vertical profiles were converted into density profiles using the Matlab sw_dens routine (Fofonoff & Millard, 1983). Bottom pressure records are detided using the Matlab routine t_tide (Pawlowicz et al., 2002) and instrumental drifts were removed. Steric height and bottom pressure equivalent height time series were averaged into monthly time steps.
    Keywords: Arctic Cape; CATS; CATS_AK3; CATS - The Changing Arctic Transpolar System; Helmholtz-Verbund Regionale Klimaänderungen = Helmholtz Climate Initiative (Regional Climate Change); Mooring (long time); MOORY; Ocean bottom pressure; RACE; Regional Atlantic Circulation and global Change; REKLIM; Steric height
    Type: Dataset
    Format: application/x-hdf, 18.1 kBytes
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    DATA PANGAEA
  • 3
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    Steric height and bottom pressure water equivalent derived from mooring data at the Laptev Sea continental slope (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: This dataset has been created as a comparative dataset for assessment of satellite-derived sea level anomaly in the publication Doglioni et al. (2022). The dataset includes two time series, one of steric height and another of bottom pressure equivalent height, respectively computed from moored temperature and salinity data and ocean bottom pressure records at the Laptev Sea continental slope. Data were collected between September 2013 and August 2015 in the framework of the project Nansen and Amundsen Basins Observations System II (NABOS-II moorings M1_4 and M1_6, Polyakov et al., 2019). Temperature and salinity were linearly interpolated between the shallowest sensor (26 m) and the deepest sensor (700 m) onto a regular pressure grid with vertical spacing of 2 m. Constant extrapolation was performed above the shallowest sensor and no extrapolation was performed below the deepest sensor. Temperature and salinity vertical profiles were converted into density profiles using the Matlab sw_dens routine (Fofonoff & Millard, 1983). Bottom pressure records are detided using the Matlab routine t_tide (Pawlowicz et al., 2002) and instrumental drifts were removed. Steric height and bottom pressure equivalent height time series were averaged into monthly time steps.
    Keywords: Helmholtz-Verbund Regionale Klimaänderungen = Helmholtz Climate Initiative (Regional Climate Change); Laptev Sea; M1_4; M1_6; Mooring (long time); MOORY; NABOS-II; Nansen and Amundsen Basins Observations System II; Ocean bottom pressure; RACE; Regional Atlantic Circulation and global Change; REKLIM; Steric height
    Type: Dataset
    Format: application/x-hdf, 17.9 kBytes
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    DATA PANGAEA
  • 4
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    Raw data of physical oceanography and current velocity data from mooring AK1-1 in the Arctic Ocean in 2015-2018 (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Time series data of physical oceanography (seawater conductivity, temperature, pressure, salinity) and ocean current velocities were obtained from mooring AK1 in the eastern Arctic Ocean north of Severnaya Zemlya (81.845 °N, 94.342 °W, water depth 305 m) in 2015 - 2018. The mooring was deployed during Akademik Tryoshnikov expedition AT2015 as part of the NSF-funded NABOS (Nansen and Amundsen Basins Observational System) - program and recovered during AT2018, which was jointly organized between NABOS and the German BMBF-funded CATS (Changing Arctic Transpolar System)-project. The attached archive contains raw data files of Seabird SBE37 microcats, Seabird SBE26 bottom pressure recorders, RDI Acoustic Doppler Current profiler and Aanderaa point current meters. Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable.
    Keywords: ADCP; AK1-1_MOOR; Akademik Tryoshnikov; Arctic Ocean; AWI_PhyOce; Binary Object; Binary Object (File Size); CATS; CATS-Synthesis; CATS-Synthesis: The Changing Arctic Transpolar System; CATS - The Changing Arctic Transpolar System; CTD; File content; Laptev Sea; MOOR; Mooring; NABOS_2015_AK1-1; NABOS_2015_AK1-1, NABOS_2018_AK1-1; NABOS_2018_AK1-1; NABOS, AT2015; NABOS 2015; oceanographic moorings; oceanographic time series; Physical Oceanography @ AWI; Severnaya Zemlya
    Type: Dataset
    Format: text/tab-separated-values, 2 data points
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    DATA PANGAEA
  • 5
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    Physical oceanography and current velocity data from mooring AK1-1 in the Arctic Ocean in 2015-2018 (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Time series data of physical oceanography (seawater conductivity, temperature, pressure, salinity) and ocean current velocities were obtained from mooring AK1 in the eastern Arctic Ocean north of Severnaya Zemlya (81.845 °N, 94.342 °E, water depth 305 m) in 2015 - 2018. The mooring was deployed during Akademik Tryoshnikov expedition AT2015 as part of the NSF-funded NABOS (Nansen and Amundsen Basins Observational System) - program and recovered during AT2018, which was jointly organized between NABOS and the German BMBF-funded CATS (Changing Arctic Transpolar System)-project. The attached archive contains processed current velocities and hydrographic data recorded with Seabird SBE37 microcats, RDI Acoustic Doppler Current profilers and Aanderaa point current meters. Details on data processing can be found in Ruiz-Castillo et al. (2022). Instruments types and serial numbers can be found in the attached document.
    Keywords: ADCP; AK1-1_MOOR; Akademik Tryoshnikov; Arctic Ocean; AWI_PhyOce; Calculated; CATS; CATS-Synthesis; CATS-Synthesis: The Changing Arctic Transpolar System; CATS - The Changing Arctic Transpolar System; CTD; Current velocity, east-west; Current velocity, north-south; DATE/TIME; DEPTH, water; FRAM; FRontiers in Arctic marine Monitoring; Gear identification number; Laptev Sea; MOOR; Mooring; NABOS_2015_AK1-1; NABOS_2015_AK1-1, NABOS_2018_AK1-1; NABOS_2018_AK1-1; NABOS, AT2015; NABOS 2015; Name; oceanographic moorings; oceanographic time series; Physical Oceanography @ AWI; Pressure, water; Quality flag, current velocity; Quality flag, salinity; Quality flag, water temperature; Salinity; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 5463088 data points
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    DATA PANGAEA
  • 6
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    Physical oceanography (CTD/Rosette) during the Akademik Tryoshnikov cruise Transarktika-2019 Leg 1 in 2019, Arctic Ocean (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: A standard Sea-Bird Electronics SBE911+ CTD system with a temperature and conductivity sensor was used to measure temperature, conductivity, and pressure at 180 stations during the Russian-international expedition Transarktika-2019 Leg 1 in the Barents Sea in March-May 2019 aboard the research vessel Akademik Tryoshnikov. We followed the manufacturer's recommendation to calculate salinity using Seabird processing software. The salinity is reported as Practical Salinity (PSU). Data were averaged at depth ranges of 1 m. Data are provided by the Antarctic and Arctic Research Institute (AARI) and reprocessed at the Helmholtz Centre for Polar and Marine Research, Alfred Wegener Institute. The Transarktika-2019 expedition was made possible by funding from the Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet). The scientific research was also supported by RFBR grants No. 18-05-60048 and 18-05-60083.
    Keywords: Akademik Tryoshnikov; Arctic Ocean; AT19001-1; AT19002-1; AT19004-1; AT19005-1; AT19006-1; AT19007-1; AT19008-1; AT19009-1; AT19010-1; AT19011-1; AT19012-1; AT19013-1; AT19014-1; AT19015-1; AT19016-1; AT19017-1; AT19018-1; AT19019-1; AT19020-1; AT19021-1; AT19022-1; AT19023-1; AT19024-1; AT19025-1; AT19026-1; AT19027-1; AT19028-1; AT19029-1; AT19030-1; AT19031-1; AT19032-1; AT19033-1; AT19034-1; AT19035-1; AT19036-1; AT19037-1; AT19038-1; AT19039-1; AT19040-1; AT19041-1; AT19042-1; AT19043-1; AT19044-1; AT19045-1; AT19046-1; AT19047-1; AT19048-1; AT19049-1; AT19050-1; AT19051-1; AT19052-1; AT19053-1; AT19054-1; AT19055-1; AT19056-1; AT19057-1; AT19058-1; AT19059-1; AT19060-1; AT19061-1; AT19062-1; AT19063-1; AT19064-1; AT19065-1; AT19066-1; AT19067-1; AT19068-1; AT19069-1; AT19070-1; AT19071-1; AT19072-1; AT19073-1; AT19074-1; AT19075-1; AT19076-1; AT19077-1; AT19078-1; AT19079-1; AT19080-1; AT19081-1; AT19082-1; AT19083-1; AT19084-1; AT19085-1; AT19086-1; AT19086-2; AT19086-3; AT19087-1; AT19088-1; AT19089-1; AT19089-2; AT19089-3; AT19090-1; AT19091-1; AT19092-1; AT19092-2; AT19092-3; AT19093-1; AT19094-1; AT19095-1; AT19095-2; AT19095-3; AT19096-1; AT19097-1; AT19098-1; AT19099-1; AT19100-1; AT19101-1; AT19102-1; AT19103-1; AT19104-1; AT19105-1; AT19106-1; AT19107-1; AT19108-1; AT19109-1; AT19110-1; AT19111-1; AT19112-1; AT19113-1; AT19114-1; AT19115-1; AT19116-1; AT19117-1; AT19118-1; AT19119-1; AT19120-1; AT19121-1; AT19122-1; AT19123-1; AT19124-1; AT19125-1; AT19126-1; AT19127-1; AT19128-1; AT19130-1; AT19131-1; AT19132-1; AT19133-1; AT19134-1; AT19135-1; AT19136-1; AT19137-1; AT19138-1; AT19139-1; AT19140-1; AT19141-1; AT19142-1; AT19148-1; AT19149-1; AT19150-1; AT19151-1; AT19152-1; AT19153-1; AT19154-1; AT19155-1; AT19156-1; AT19157-1; AT19158-1; AT19159-1; AT19160-1; AT19161-1; AT19162-1; AT19163-1; AT19164-1; AT19165-1; AT19166-1; AT19167-1; AT19168-1; AT19169-1; AT19170-1; AT19171-1; AT19172-1; AT19173-1; AT19174-1; AT19175-1; AT19176-1; AT19177-1; AT19178-1; AT19179-1; Barents Sea; Calculated; CATS; CATS - The Changing Arctic Transpolar System; Conductivity; CTD, Sea-Bird, SBE 911plus; CTD/Rosette; DATE/TIME; Density, sigma-theta (0); DEPTH, water; ELEVATION; Event label; Ice drift experiment SEVERNYI POLYUS 2019; Kara Sea; LATITUDE; LONGITUDE; Number of scans; Pressure, water; Salinity; St. Anna Trough; Temperature, water; Temperature, water, potential; Transarktika-2019_Leg1
    Type: Dataset
    Format: text/tab-separated-values, 288309 data points
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    DATA PANGAEA
  • 7
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    Microstructure measurements during Akademik Tryoshnikov cruise AT2018 to the Arctic Ocean (2020)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: Shipboard loosely-tethered free-falling microstructure (MSS) measurements were carried out during expedition Transdrift-XXIV to the eastern Arctic Ocean onboard the Akademik Tryoshnikov (AT2018). The expedition was jointly organized between the US-Russian NABOS (Nansen and Amundsen Basin Observational System), the German-Russian CATS (Changing Arctic Transpolar System, funded by BMBF), and the TICE-project funded by the Alfred-Wegener-Institute. 236 stations were carried out between 25 August and 23 September 2018. The profiler MSS90L manufactured by Sea and Sun Technology samples at 1024 Hz and was equipped with temperature, salinity, shear, and fluorescence sensors. Details on data processing can be found in Schulz et al. (2021). Additional parameters and metadata are provided in the attached netcdf file.
    Keywords: Akademik Tryoshnikov; Arctic Ocean; AT18_009_2; AT18_009_5; AT18_016_2; AT18_017_1; AT18_018_2; AT18_019_2; AT18_020_2; AT18_022_4; AT18_023_2; AT18_024_2; AT18_025_4; AT18_044_2; AT18_045_2; AT18_046_2; AT18_047_3; AT18_048_2; AT18_049_2; AT18_050_2; AT18_060_3; AT18_061_2; AT18_062_2; AT18_063_2; AT18_085_4; AT18_093_2; AT18_094_2; AT18_095_2; AT18_102; AT18_103; AT18_116_2; AT18_117_2; AT18_118_2; AT18_119_2; AT18_120_2; AT18_122_2; AT2018, TICE, NABOS; AWI_PhyOce; Cast number; DATE/TIME; DEPTH, water; Dissipation rate; Event label; Laptev Sea; LATITUDE; LONGITUDE; microstructure; Micro structure probe; MSS; ocean heat flux; Physical Oceanography @ AWI; Pressure, water; Profile ID; Salinity; System Laptev-Sea: Transdrift; Temperature, water, potential; TRANSDRIFT; Transdrift-XXIV; turbulence; Turbulence probe MSS90L, Sea and Sun Technology
    Type: Dataset
    Format: text/tab-separated-values, 447242 data points
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    DATA PANGAEA
  • 8
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    Microstructure measurements raw data during Akademik Tryoshnikov cruise AT2018 to the Arctic Ocean (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: Shipboard loosely-tethered free-falling microstructure (MSS) measurements were carried out during expedition Transdrift-XXIV to the eastern Arctic Ocean onboard the Akademik Tryoshnikov (AT2018). The expedition was jointly organized between the US-Russian NABOS (Nansen and Amundsen Basin Observational System), the German-Russian CATS (Changing Arctic Transpolar System, funded by BMBF), and the TICE-project funded by the Alfred-Wegener-Institute. 236 stations were carried out between 25 August and 23 September 2018. The profiler MSS90L manufactured by Sea and Sun Technology samples at 1024 Hz and was equipped with temperature, salinity, shear, and fluorescence sensors.
    Keywords: Akademik Tryoshnikov; Arctic Ocean; AT18_009_2; AT18_009_5; AT18_016_2; AT18_017_1; AT18_018_2; AT18_019_2; AT18_020_2; AT18_022_4; AT18_023_2; AT18_024_2; AT18_025_4; AT18_044_2; AT18_045_2; AT18_046_2; AT18_047_3; AT18_048_2; AT18_049_2; AT18_050_2; AT18_060_3; AT18_061_2; AT18_062_2; AT18_063_2; AT18_085_4; AT18_093_2; AT18_094_2; AT18_095_2; AT18_102; AT18_103; AT18_116_2; AT18_117_2; AT18_118_2; AT18_119_2; AT18_120_2; AT18_122_2; AT2018, TICE, NABOS; AWI_PhyOce; Binary Object; Binary Object (File Size); Binary Object (Media Type); Date/Time of event; Date/Time of event 2; Event label; Laptev Sea; Latitude of event; Latitude of event 2; Longitude of event; Longitude of event 2; microstructure; Micro structure probe; MSS; ocean heat flux; Physical Oceanography @ AWI; System Laptev-Sea: Transdrift; TRANSDRIFT; Transdrift-XXIV; turbulence
    Type: Dataset
    Format: text/tab-separated-values, 232 data points
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    DATA PANGAEA
  • 9
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    Colored dissolved organic matter (CDOM) and dissolved organic carbon (DOC) measured during cruise TRANSDRIFT-XXIV, Laptev Sea (2020)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: The data set includes the light absorption coefficient of colored dissolved organic matter (CDOM) from 200 nm to 700 nm wavelength and dissolved organic carbon (DOC) together with physical oceanographic observations (temperature and salinity) from the Laptev Sea. Sampling was carried out August and September 2018. During the ship-based expedition, we operated a CTD profiler (conductivity temperature-depth; Seabird 911+) to sample the basic hydrographic parameters. The CTD is operated on a carousel water sampler (SBE 32), which can take water samples at the selected depths. The dataset is part of a multi-year study (different seasons over a period of 9 years: 2010-2019) of the dissolved organic matter (CDOM), which includes observations in marine waters from the coastal zone to the shelf edge of the Laptev Sea and East Siberian Sea, the river Lena and ice and water samples from the land-fast in the south-eastern Laptev Sea.
    Keywords: Absorption coefficient, colored dissolved organic matter at given wavelength; Akademik Tryoshnikov; Area/locality; AT18_008-01; AT18_009-01; AT18_011-01; AT18_012-01; AT18_013-02; AT18_014-01; AT18_016-01; AT18_017-04; AT18_018-01; AT18_019-01; AT18_020-01; AT18_021-01; AT18_023-01; AT18_024-01; AT18_025-01; AT18_026-01; AT18_051-03; AT18_052-01; AT2018, TICE, NABOS; Carbon, organic, dissolved; CATS; CATS - The Changing Arctic Transpolar System; CTD, Sea-Bird SBE 911plus; CTD/Rosette; CTD-RO; DATE/TIME; Depth, bathymetric; DEPTH, water; Dissolved Organic Matter; Event label; High Temperature Catalytic Oxidation, Shimadzu TOC-VCPN; Landfast ice; Laptev Sea; Laptev Sea System; LATITUDE; LONGITUDE; LSS; River Lena; Salinity; Siberian Shelf Seas; Spectrophotometer, dual beam (Specord200, Jena Analytik); Station label; Temperature, water; Transdrift-XXIV
    Type: Dataset
    Format: text/tab-separated-values, 57267 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 10
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    Raw data of physical oceanography and current velocity from mooring AK6-1 in the Arctic Ocean in 2015-2018 (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: Time series data of physical oceanography (seawater conductivity, temperature, pressure, salinity) and ocean current velocities were obtained from mooring AK6 in the eastern Arctic Ocean north of Severnaya Zemlya (82.367 °N, 95.218 °W, water depth 2794 m) in 2015 - 2018. The mooring was deployed during Akademik Tryoshnikov expedition AT2015 as part of the NSF-funded NABOS (Nansen and Amundsen Basins Observational System) - program and recovered during AT2018, which was jointly organized between NABOS and the German BMBF-funded CATS (Changing Arctic Transpolar System)-project. The attached archive contains raw data files of Seabird SBE37 microcats, Seabird SBE26 bottom pressure recorders, RDI Acoustic Doppler Current profiler and Aanderaa point current meters. Auxiliary information such as sensor calibration sheets, mooring diagrams and schedule files are also provided, if applicable.
    Keywords: ADCP; AK_MOOR; AK6_MOOR; AK6-1_MOOR; Akademik Tryoshnikov; Arctic Ocean; AT2018, TICE, NABOS; AWI_PhyOce; Binary Object; Binary Object (File Size); CATS; CATS - The Changing Arctic Transpolar System; CTD; File content; Laptev Sea; MOOR; Mooring; NABOS_2015_AK6-1; NABOS_2015_AK6-1,NABOS_2018_AK6-1; NABOS_2018_AK6-1; NABOS, AT2015; NABOS 2015; oceanographic moorings; oceanographic time series; Physical Oceanography @ AWI; Transdrift-XXIV
    Type: Dataset
    Format: text/tab-separated-values, 2 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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