Summary
Greenland ice cores contain a broad spectrum of informations on past environmental conditions in the North Atlantic region. However, the ice flow pattern, which is particularly complicated in South Greenland, dictates correction of ice core data for thinning of annual layers since the time of formation, and/or for deviating conditions upstream from the drill site. Measurements on the changing geometry of the deep drill hole at Dye 3; on the surface and bedrock topographies; and on the surface velocities upstream, have been used as inputs to an ice flow model that has led to a deeper understanding of the ice dynamics that is needed for a proper correction proceedure. The corrected data series show that the annual precipitation in South Greenland has varied considerably less through the last several millenia, than suggested by the raw data. The interpretation of stable isotope data series is discussed, and examples of Pleistocene environmental data series are presented.
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Dansgaard, W., Clausen, H.B., Dahl-Jensen, D., Gundestrup, N., Hammer, C.U. (1986). Climatic History from Ice Core Studies in Greenland Data Correction Procedures. In: Ghazi, A., Fantechi, R. (eds) Current Issues in Climate Research. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5494-6_7
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DOI: https://doi.org/10.1007/978-94-009-5494-6_7
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