The Temperature Variations over the Antarctic Coastal Regions in the Past 250 Years
南极冰盖边缘近250年来气温变化的地域分布特征

By comparing the oxygen isotope temperatures recorded by 1 7 shallow ice cores from the coastal regions of Antarctica, this paper presents the special characteristics of the temperature variations over t he 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 differ ent 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 al ternant-distributing pattern. In the past 250 years, all the ice cores f rom the coastal regions of Antarctica record the so-called Little Ice Age (L IA).