GCM analysis of local influences on ice core delta signals

被引：119

作者：

Krinner, G ^{[1
]}

Genthon, C ^{[1
]}

Jouzel, J ^{[1
]}

机构：

[1] CENS,LMCE,GIF SUR YVETTE,FRANCE

来源：

GEOPHYSICAL RESEARCH LETTERS | 1997年 / 24卷 / 22期

关键词：

D O I：

10.1029/97GL52891

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

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 degrees 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.

引用

页码：2825 / 2828

页数：4

共 20 条

[1] Cool tropical temperatures shift the global delta O-18-T relationship: An explanation for the ice core delta O-18-borehole thermometry conflict? [J].