Abstract

A high resolution GCM is used to examine the effect of changes in local surface climate parameters on the ice sheets that can influence the interpretation of the isotopic signal of the ice from deep cores. The model suggests that the 10°C difference between the LGM surface temperature deduced from borehole thermometry and that deduced from the water isotope analysis to a great extent may be due to a modification of the precipitation seasonality in central Greenland. For central East Antarctica, the model tends to suggest a weak opposite bias.

Keywords

Ice coreGCM transcription factorsClimatologyGeologyPrecipitationPaleoclimatologyIce sheetBoreholeClimate changeAtmospheric sciencesGeneral Circulation ModelGeomorphologyPaleontologyOceanographyMeteorologyGeography

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Publication Info

Year
1997
Type
article
Volume
24
Issue
22
Pages
2825-2828
Citations
151
Access
Closed

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Gerhard Krinner, Christophe Genthon, Jean Jouzel (1997). GCM analysis of local influences on ice core <i>δ</i> signals. Geophysical Research Letters , 24 (22) , 2825-2828. https://doi.org/10.1029/97gl52891

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DOI
10.1029/97gl52891