| THE HISTORICAL CLIMATIC RECORDS IN ICE CORES FROM THE SURFACE LAYER OF WILKES LAND, ANTARCTICA |
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| 引用本文： | 秦大河,王文悌. THE HISTORICAL CLIMATIC RECORDS IN ICE CORES FROM THE SURFACE LAYER OF WILKES LAND, ANTARCTICA[J]. 中国科学B辑(英文版), 1990, 0(4) |
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| 作者姓名： | 秦大河 王文悌 |
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| 作者单位： | Lanzhou Institute of Glaciology and Geocryology，Academia Sinica，Lanzhou，730000，PRC，Lanzhou Institute of Glaciology and Geocryology，Academia Sinica，Lanzhou，730000，PRC |
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| 摘 要： | The information preserved in the surface layer of the Antarctic ice sheet is so abundant and detailed that in the areas with a high accumulation rate the annual climatic changes in the past can be distinguished. After conducting an investigation into the stratigraphical features of ice cores from two typical shallow boreholes in the Wilkes Land, one inland and another near the margin, analyzing δ(~18)O and the gross β radioactivity in the cores, as well as anslyzing the power spectra of δ~(18)O, the authors present some important assessments on the climatic information in the past several decades therein such as the annual mean temperature and precipitation, and suggest that there is a period of 11 years with which the climate changes cyclically in East Antactica. Such a studying method will be of value in both theory and practice to the inland Antarctica, where direct meteorological observation is deficient.
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| 关 键 词： | climatic cycle δ~(18)O profile shallow ice core power spectral analysis Gross β activity. |
THE HISTORICAL CLIMATIC RECORDS IN ICE CORES FROM THE SURFACE LAYER OF WILKES LAND, ANTARCTICA |
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| QIN DA-HE WANG WEN-TI. THE HISTORICAL CLIMATIC RECORDS IN ICE CORES FROM THE SURFACE LAYER OF WILKES LAND, ANTARCTICA[J]. Science in China(Chemistry), 1990, 0(4) |
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| Authors: | QIN DA-HE WANG WEN-TI |
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