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  • 1
    Book
    Book
    Preliminary report: an Arctic Environmental Drifting Buoy [AEDB Project] (1988)
    Woods Hole, Mass. : Woods Hole Oceanographic Institution
    Details Availability
    Type of Medium: Book
    Pages: [52] Bl. , zahlr. Ill., graph. Darst.
    Language: English
    Location Call Number Limitation Availability
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    GEOMAR CATALOGUE
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  • 2
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    Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean (2017)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 356 (6335). pp. 285-291.
    Details
    Publication Date: 2020-02-06
    Description: Arctic sea-ice loss is a leading indicator of climate change and can be attributed, in large part, to atmospheric forcing. Here, we show that recent ice reductions, weakening of the halocline, and shoaling of intermediate-depth Atlantic Water layer in the eastern Eurasian Basin have increased winter ventilation in the ocean interior, making this region structurally similar to that of the western Eurasian Basin. The associated enhanced release of oceanic heat has reduced winter sea-ice formation at a rate now comparable to losses from atmospheric thermodynamic forcing, thus explaining the recent reduction in sea-ice cover in the eastern Eurasian Basin. This encroaching “atlantification” of the Eurasian Basin represents an essential step toward a new Arctic climate state, with a substantially greater role for Atlantic inflows.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1126/science.aai8204
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 3
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    Insights into Water Mass Origins in the Central Arctic Ocean from in‐situ Dissolved Organic Matter Fluorescence (2021)
    AGU (American Geophysical Union) | Wiley
    Details
    Publication Date: 2024-02-07
    Description: The Arctic Ocean receives a large supply of dissolved organic matter (DOM) from its catchment and shelf sediments, which can be traced across much of the basin’s upper waters. This signature can potentially be used as a tracer. On the shelf, the combination of river discharge and sea-ice formation, modifies water densities and mixing considerably. These waters are a source of the halocline layer that covers much of the Arctic Ocean, but also contain elevated levels of DOM. Here we demonstrate how this can be used as a supplementary tracer and contribute to evaluating ocean circulation in the Arctic. A fraction of the organic compounds that DOM consists of fluoresce and can be measured using in-situ fluorometers. When deployed on autonomous platforms these provide high temporal and spatial resolution measurements over long periods. The results of an analysis of data derived from several Ice Tethered Profilers (ITPs) offer a unique spatial coverage of the distribution of DOM in the surface 800m below Arctic sea-ice. Water mass analysis using temperature, salinity and DOM fluorescence, can clearly distinguish between the contribution of Siberian terrestrial DOM and marine DOM from the Chukchi shelf to the waters of the halocline. The findings offer a new approach to trace the distribution of Pacific waters and its export from the Arctic Ocean. Our results indicate the potential to extend the approach to separate freshwater contributions from, sea-ice melt, riverine discharge and the Pacific Ocean. Key Points: Arctic surface waters with comparable temperature and salinity have contrasting in situ dissolved organic matter fluorescence. Organic matter fluorescence can tracklow salinity waters feeding into the Transpolar Drift and haloclinelayers. Siberian and Chukchishelf waters can be separated based on their fluorescence to salinity relationship
    Type: Article , PeerReviewed
    Format: text
    Format: other
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Climate-Relevant Ocean Transport Measurements in the Atlantic and Arctic Oceans (2021)
    Oceanography Society
    Details
    Publication Date: 2024-04-08
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 5
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    (Table 1) Physical oceanography from several POLARSTERN cruises to the Arctic Ocean, 1993 - 2012
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Description: Freshwater in the Arctic Ocean plays an important role in the regional ocean circulation, sea ice, and global climate. From salinity observed by a variety of platforms, we are able, for the first time, to estimate a statistically reliable liquid freshwater trend from monthly gridded fields over all upper Arctic Ocean basins. From 1992 to 2012 this trend was 600±300 km**3/yr. A numerical model agrees very well with the observed freshwater changes. A decrease in salinity made up about two thirds of the freshwater trend and a thickening of the upper layer up to one third. The Arctic Ocean Oscillation index, a measure for the regional wind stress curl, correlated well with our freshwater time series. No clear relation to Arctic Oscillation or Arctic Dipole indices could be found. Following other observational studies, an increased Bering Strait freshwater import to the Arctic Ocean, a decreased Davis Strait export, and enhanced net sea ice melt could have played an important role in the freshwater trend we observed.
    Type: Dataset
    Format: 11 datasets
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    DATA PANGAEA
  • 6
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    Drift trajectory of the Central Observatory 1 (CO1) of the Distributed Network of MOSAiC 2019/2020 (2021)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-11-14
    Description: During the "Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)" in 2019/2020 a Distributed Network (DN) of autonomous stations (buoys) was installed on the sea ice and drifted across the Arctic Ocean. This network consisted of 〉200 individual devices ranging from simple position buoys to complex and interdisciplinary multi-sensor platforms. Most (complex) measurements were performed on sea ice floes (sites or nodes) by co-located instruments. These sites were called medium (M) and large (L) sites. In addition, autonomous instruments were operated in the Central Observatory (CO), which consisted of the research ice breaker Polarstern and the adjacent ice camp. Initially, 4 L and 9 M sites were installed around the CO in a distance of up to 40 km. However, their distances and relative positions changed over time due to the drift of the ice pack over time. Over the course of the MOSAiC expedition, 3 different COs were established because of re-locations of RV Polarstern: CO1 started with the first drift of Polarstern on 04 October 2019; CO2 started with the second drift on 19 June 2020; and CO3 started with the third drift on 21 August 2020.
    Keywords: 2020P225; Arctic Ocean; CT; DATE/TIME; distributed network; drift track; ISVP; LATITUDE; LONGITUDE; Mosaic; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; PS122/1; PS122/1-track; PS122/2; PS122/2-track; PS122/3; PS122/3_28-114; PS122/3-track; Surface velocity profiler; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
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    DATA PANGAEA
  • 7
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    Drift trajectory of the Central Observatory 2 (CO2) of the Distributed Network of MOSAiC 2019/2020 (2021)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-11-14
    Description: During the “Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)” in 2019/2020 a Distributed Network (DN) of autonomous stations (buoys) was installed on the sea ice and drifted across the Arctic Ocean. This network consisted of 〉200 individual devices ranging from simple position buoys to complex and interdisciplinary multi-sensor platforms. Most (complex) measurements were performed on sea ice floes (sites or nodes) by co-located instruments. These sites were called medium (M) and large (L) sites. In addition, autonomous instruments were operated in the Central Observatory (CO), which consisted of the research ice breaker Polarstern and the adjacent ice camp. Initially, 4 L and 9 M sites were installed around the CO in a distance of up to 40 km. However, their distances and relative positions changed over time due to the drift of the ice pack over time. Over the course of the MOSAiC expedition, 3 different COs were established because of re-locations of RV Polarstern: CO1 started with the first drift of Polarstern on 04 October 2019; CO2 started with the second drift on 19 June 2020; and CO3 started with the third drift on 21 August 2020.
    Keywords: 2020M26; Arctic Ocean; CT; DATE/TIME; distributed network; drift track; Ice Mass Balance buoy, flexibel; IMBflex; LATITUDE; LONGITUDE; Mosaic; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; PS122/4; PS122/4_43-68; PS122/4-track; PS122/5; PS122/5-track; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    Drift trajectory of the site L2 of the Distributed Network of MOSAiC 2019/2020 (2021)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-11-14
    Description: During the “Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)” in 2019/2020 a Distributed Network (DN) of autonomous stations (buoys) was installed on the sea ice and drifted across the Arctic Ocean. This network consisted of 〉200 individual devices ranging from simple position buoys to complex and interdisciplinary multi-sensor platforms. Most (complex) measurements were performed on sea ice floes (sites or nodes) by co-located instruments. These sites were called medium (M) and large (L) sites. In addition, autonomous instruments were operated in the Central Observatory (CO), which consisted of the research ice breaker Polarstern and the adjacent ice camp. Initially, 4 L and 9 M sites were installed around the CO in a distance of up to 40 km. However, their distances and relative positions changed over time due to the drift of the ice pack over time. Over the course of the MOSAiC expedition, 3 different COs were established because of re-locations of RV Polarstern: CO1 started with the first drift of Polarstern on 04 October 2019; CO2 started with the second drift on 19 June 2020; and CO3 started with the third drift on 21 August 2020.
    Keywords: AF-MOSAiC-1; AF-MOSAiC-1_86; Akademik Fedorov; Arctic Ocean; DATE/TIME; distributed network; drift track; Ice-Tethered Profiler; ITP; ITP94, 2019W2, PS122/1_1-168; LATITUDE; LONGITUDE; Mosaic; MOSAiC; MOSAiC20192020, AF122/1; Multidisciplinary drifting Observatory for the Study of Arctic Climate
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Drift trajectory of the site M1 of the Distributed Network of MOSAiC 2019/2020 (2021)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-11-14
    Description: During the “Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)” in 2019/2020 a Distributed Network (DN) of autonomous stations (buoys) was installed on the sea ice and drifted across the Arctic Ocean. This network consisted of 〉200 individual devices ranging from simple position buoys to complex and interdisciplinary multi-sensor platforms. Most (complex) measurements were performed on sea ice floes (sites or nodes) by co-located instruments. These sites were called medium (M) and large (L) sites. In addition, autonomous instruments were operated in the Central Observatory (CO), which consisted of the research ice breaker Polarstern and the adjacent ice camp. Initially, 4 L and 9 M sites were installed around the CO in a distance of up to 40 km. However, their distances and relative positions changed over time due to the drift of the ice pack over time. Over the course of the MOSAiC expedition, 3 different COs were established because of re-locations of RV Polarstern: CO1 started with the first drift of Polarstern on 04 October 2019; CO2 started with the second drift on 19 June 2020; and CO3 started with the third drift on 21 August 2020.
    Keywords: AF-MOSAiC-1; AF-MOSAiC-1_105; Akademik Fedorov; Arctic Ocean; Buoy, Drift Towing Ocean Profiler; DATE/TIME; distributed network; drift track; DTOP; LATITUDE; LONGITUDE; Mosaic; MOSAiC; MOSAiC20192020, AF122/1; Multidisciplinary drifting Observatory for the Study of Arctic Climate; PS122/1_1-275, 2019V1
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    Drift trajectory of the site M2 of the Distributed Network of MOSAiC 2019/2020 (2021)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-11-14
    Description: During the “Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)” in 2019/2020 a Distributed Network (DN) of autonomous stations (buoys) was installed on the sea ice and drifted across the Arctic Ocean. This network consisted of 〉200 individual devices ranging from simple position buoys to complex and interdisciplinary multi-sensor platforms. Most (complex) measurements were performed on sea ice floes (sites or nodes) by co-located instruments. These sites were called medium (M) and large (L) sites. In addition, autonomous instruments were operated in the Central Observatory (CO), which consisted of the research ice breaker Polarstern and the adjacent ice camp. Initially, 4 L and 9 M sites were installed around the CO in a distance of up to 40 km. However, their distances and relative positions changed over time due to the drift of the ice pack over time. Over the course of the MOSAiC expedition, 3 different COs were established because of re-locations of RV Polarstern: CO1 started with the first drift of Polarstern on 04 October 2019; CO2 started with the second drift on 19 June 2020; and CO3 started with the third drift on 21 August 2020.
    Keywords: AF-MOSAiC-1; AF-MOSAiC-1_109; Akademik Fedorov; Arctic Ocean; Buoy, Drift Towing Ocean Profiler; DATE/TIME; distributed network; drift track; DTOP; LATITUDE; LONGITUDE; Mosaic; MOSAiC; MOSAiC20192020, AF122/1; Multidisciplinary drifting Observatory for the Study of Arctic Climate; PS122/1_1-276, 2019V2
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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