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  • 1
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    (Table 1b) 210Pb chronology of bulk sediment samples from core JM05-G001 during Jan Mayen cruise JM050704 to the Barents Sea
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Accumulation rate per year; Age; Age, 210Pb; Barents Sea; DEPTH, sediment/rock; Jan Mayen; JM050704; JM05-G001; MULT; Multiple investigations; Sedimentation rate per year
    Type: Dataset
    Format: text/tab-separated-values, 25 data points
    Location Call Number Limitation Availability
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  • 2
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    (Table 1) 210Pb dates from sediment core JM99-1197/BC obtained during Jan Mayen cruise JM99 in Malangen
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    Details
    Publication Date: 2023-06-27
    Keywords: Accumulation rate per year; Age; Age, 210Pb; BC; Box corer; Core; Jan Mayen; JM99/11; JM99-1197/BC; Malangen; SECTION, height; Sedimentation rate per year; SPINOF
    Type: Dataset
    Format: text/tab-separated-values, 100 data points
    Location Call Number Limitation Availability
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  • 3
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    (Table 2) AMS radiocarbon dates of sediment cores JM99-1197/BC and JM02-59/GC obtained during Jan Mayen cruises in Malangen
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    Details
    Publication Date: 2023-06-27
    Keywords: Age; Age, 14C AMS; Age, 14C calibrated, IntCal04 and MARINE04 (Hughen et al. 2004, Reimer 2004); Age, dated; Age, dated material; Age, dated standard deviation; Age, maximum/old; Age, minimum/young; BC; Box corer; Calendar age; DEPTH, sediment/rock; Event label; GC; Gravity corer; Jan Mayen; JM02-59/GC; JM99/11; JM99-1197/BC; Malangen; Sample ID; SPINOF; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 66 data points
    Location Call Number Limitation Availability
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  • 4
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    (Table 1a) AMS radiocarbon age of core JM05-G001 at 39-40 cm obtained during Jan Mayen cruise JM050704 to the Barents Sea (2011)
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    Details
    Publication Date: 2023-08-16
    Keywords: Age, 14C AMS; Age, 14C calibrated, CALIB 5.0.2 (Stuiver et al., 2005); Age, dated; Age, dated material; Age, dated standard deviation; Age, lower confidence level; Age, upper confidence level; Barents Sea; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Identification; Jan Mayen; JM050704; JM05-G001; Laboratory code/label; MULT; Multiple investigations; Probability; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 14 data points
    Location Call Number Limitation Availability
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  • 5
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    210Pb and AMS radiocarbon dates of sediment cores JM99-1197 and JM02-59 obtained in Malangen (2011)
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    In:  Supplement to: Hald, Morten; Salomonsen, Gaute R; Husum, Katrine; Wilson, Laurie J (2011): A 2000 year record of Atlantic Water temperature variability from the Malangen Fjord, northeastern North Atlantic. The Holocene, 21(7), 1049-1059, https://doi.org/10.1177/0959683611400457
    Details
    Publication Date: 2023-12-13
    Description: A high-resolution sedimentary record from the subarctic Malangen fjord in northern Norway, northeastern North Atlantic has been investigated in order to reconstruct variations in influx of Atlantic Water for the last 2000 years. The fjord provides a regional oceanographic climatic signal reflecting changes in the North Atlantic heat flux at this latitude because of its deep sill and the relatively narrow adjoining continental shelf. The reconstructions are based on oxygen and carbon isotopic studies of benthic foraminifera from a high accumulation basin in the Malangen fjord, providing subdecadal time resolution. A comparison between instrumental measurements of bottom water temperatures at the core location and the reconstructed temperatures from benthic foraminiferal d18O for the same time period demonstrates that the stable isotope values reflect the bottom water temperatures very well. The reconstructed temperature record shows an overall decline in temperature of c. 1°C from c. 40 BC to ad 1350. This cooling trend is assumed to be driven by an orbital forced reduction in insolation. Superimposed on the general cooling trend are several periods of warmer or colder temperatures. The long-term fluctuations in the Malangen fjord are concurrent with fluctuations of Atlantic Water in the northern North Atlantic. Although they are not directly comparable, comparisons of atmospheric temperatures and marine records, indicate a close coupling between the climate systems. After ad l800 the record shows an unprecedented warming within the last 2000 years.
    Keywords: International Polar Year (2007-2008); IPY
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Radiocarbon age, and sedimentation and accumulation rate of core JM05-G001 obtained during Jan Mayen cruise JM050704 to the Barents Sea (2011)
    PANGAEA
    In:  Supplement to: Wilson, Laurie J; Hald, Morten; Godtliebsen, Fred (2011): Foraminiferal faunal evidence of twentieth-century Barents Sea warming. The Holocene, 21(4), 527-537, https://doi.org/10.1177/0959683610385718
    Details
    Publication Date: 2023-12-13
    Description: Instrumental monitoring of the climate at high northern latitudes has documented the ongoing warming of the last few decades. Climate modelling has also demonstrated that the global warming signal will be amplified in the polar region. Such temperature increases would have important implications on the ecosystem and biota of the Barents Sea. This study therefore aims to reconstruct the climatic changes of the Barents Sea based on benthic foraminifera over approximately the last 1400 years at the decadal to sub-decadal scale. Oxygen and carbon isotope analysis and benthic foraminiferal species counts indicate an overall warming trend of approximately 2.6°C through the 1400-year record. In addition, the well-documented cooling period equating to the 'Little Ice Age' is evident between c. 1650 and 1850. Most notably, a series of highly fluctuating temperatures are observed over the last century. An increase of 1.5°C is shown across this period. Thus for the first time we are able to demonstrate that the recent Arctic warming is also reflected in the oceanic micro-fauna.
    Keywords: Barents Sea; International Polar Year (2007-2008); IPY; Jan Mayen; JM050704; JM05-G001; MULT; Multiple investigations
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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