Becker, Lukas W M; Sejrup, Hans Petter; Hjelstuen, Berit O; Haflidason, Haflidi; Kjennbakken, Heidi; Werner, Johannes P (2020): Grain size distribution, Ca/Fe ratios and elemental composition of sediment core GS13-182-CC, Norwegian continental margin [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.925437
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Abstract:
The North Atlantic Oscillation is the dominant atmospheric driver of North Atlantic climate variability with phases corresponding to droughts and cold spells in Europe. Here, we exploit a suggested anti-correlation of North Atlantic Oscillation-phase and north-eastern North Atlantic primary productivity by investigation of south-eastern Norwegian Sea sediment cores spanning the last 8000 years. Age model uncertainties between 2 and 13 years for the period 1992-1850 AD allows for proxy to observational data calibration. Our data suggest that Ca/Fe core-scanning results reflect sedimentary CaCO3-variability in the region. Cross-correlating the Ca/Fe record with nearby phytoplankton counts and dissolved O2 data, suggests that Ca/Fe can be used as a proxy for primary productivity variability in the region. Our data support an anti-correlation of primary productivity to the winter North Atlantic Oscillation index. Hence, we propose a sub-decadally resolved palaeo-North Atlantic Oscillation reconstruction based on an open-ocean record spanning the last 8000 years.
Related to:
Becker, Lukas W M; Sejrup, Hans Petter; Hjelstuen, Berit O; Haflidason, Haflidi; Kjennbakken, Heidi; Werner, Johannes P (accepted): Palaeo-productivity record from Norwegian Sea enables North Atlantic Oscillation (NAO) reconstruction for the last 8000 years. npj Climate and Atmospheric Science, 3(1), https://doi.org/10.1038/s41612-020-00147-6
Coverage:
Latitude: 63.640000 * Longitude: 5.510000
Event(s):
GS13-182-01CC * Latitude: 63.640000 * Longitude: 5.510000 * Elevation: 960.0 m * Location: Storegga Slide, Norwegian shelf * Campaign: GS13-182 (IMR2013105) * Basis: G. O. Sars (2003) * Method/Device: Calypso Corer (CALYPSO)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
3 datasets
Download Data
Datasets listed in this bundled publication
- Becker, LWM; Sejrup, HP; Hjelstuen, BO et al. (2020): X-ray fluorescence Ca/Fe ratios of sediment core GS13-182-CC at the Norwegian Continental Margin. https://doi.org/10.1594/PANGAEA.925432
- Becker, LWM; Sejrup, HP; Hjelstuen, BO et al. (2020): Grain size distribution, sedimentation rate and water content of sediment core GS13-182-CC at the Norwegian Continental Margin. https://doi.org/10.1594/PANGAEA.925434
- Becker, LWM; Sejrup, HP; Hjelstuen, BO et al. (2020): X-ray fluorescence chlorine, potassium, calcium, titanium and iron composition of sediment core GS13-182-CC at the Norwegian Continental Margin. https://doi.org/10.1594/PANGAEA.925436