Abstract
Based on dated reference horizons down to 1623 m an ice flow model has been developed. The model is used to reconstruct past accumulation rates from the sequences of detected annual layers in the upper 2321 m of the 3029 m deep GRIP ice core. Comparison of these past time accumulation rates with the corresponding δ 18O values show a strong correlation. This relationship can be used in a non steady state flow model, in which past accumulation rates, deduced from the continuous δ 18O record, are used to model a time scale. The hereby determined time scale and the modelled annual layers compare well with the observed data.
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Dahl-Jensen, D., Johnsen, S.J., Hammer, C.U., Clausen, H.B., Jouzel, J. (1993). Past Accumulation rates derived from observed annual layers in the GRIP ice core from Summit, Central Greenland. In: Peltier, W.R. (eds) Ice in the Climate System. NATO ASI Series, vol 12. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-85016-5_29
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DOI: https://doi.org/10.1007/978-3-642-85016-5_29
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