南极冰盖边缘近250年来气温变化的地域分布特征

doi:10.11821/xb200301010

Abstract

Abstract:

By comparing the oxygen isotope temperatures recorded by 17 shallow ice cores from the coastal regions of Antarctica, this paper presents the special characteristics of the temperature variations over the Antarctic coastal regions in the past 50, 150 and 250 years. In the past 50 years, the isotopic temperatures recorded in the ice cores at different sites of the Antarctic coastal regions differ great. For instance, although the increasing isotopic temperatures have been reported for many sites studied, some sites show decreasing trends. In the past 150 years, the isotope temperatures in the coastal regions of Antarctica show an alternant-distributing pattern. In the past 250 years, all the ice cores from the coastal regions of Antarctica record the so-called Little Ice Age (LIA).

Key words: Antarctica, ice core, temperature, circumpolar wave, circumpolar circulation

ZHANG Mingjun, XIAO Cunde, LI Zhongqin, REN Jiawen, QIN Dahe, KANG Jiancheng, LI Jun. The Temperature Variations over the Antarctic Coastal Regions in the Past 250 Years[J].Acta Geographica Sinica, 2003, 58(1): 83-89.

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The Temperature Variations over the Antarctic Coastal Regions in the Past 250 Years

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