| 1 | 横贯南极洲表层25cm雪层内δD值的分布规律显示文摘本文首次获得了南极洲大范围表层雪中δD的地理分布,通过对自然地理条件和δD分布的海陆效应、高程效应、纬度效应等地理地带性特征的分析,认为样点处的纬度与δD的分布关系较为密切,但在某些地区地形因素起主要作用,同时还获得了南极洲内陆广袤地区表层雪内δD和采样点处年平均温度之间的关系,本文首次获得的从南极半岛北端到Vostok站之间的δD-温度的梯度值与前人在东南极洲Terre Adelie地的结果相当吻合,但从Vostok站到终点间的δD-温度梯度偏高,除了诸多自然因素外,吹雪及其效应可能起了重要作用。 | 秦大河 任贾文 王文悌 J.R.Petit J.Jouzel M.Stievenard | 1992 | 中国科学(B辑)1992，00B，7： | 4 |
| 2 | Distribution of δD in 25-cm Surface Snow Along Trans-Antarctic Route (Ⅱ)——The “1990 International Trans-Antarctic Expedition” Glaciological Research显示文摘On the way of the '1990 International Trans-Antarctic Expedition', the first author of this paper, the Chinese member of the expedition, collected 104 snow samples in 25-cm surface snow along a 5986-km route on Antarctic ice sheet from west to east. The geographical distribution of δD across the Antarctica by the longest route is obtained from stable isotope analysis for the first time. After discussing regional differences of physical geographic conditions, maritime-continental influence, altitudes and latitudes at sampling sites, the distribution of δD is considered to have a close relation to latitudes, but the topographic effect is prominent in some particular regions. The mean annual temperature at sampling site and its relationship with δD in surface snow covering Antarctica from west to east are discussed also. The δD-temperature gradient from the south end of Antarctic Peninsula to Vostok obtained in this paper is very close to that in Terre Adelie Land obtained by predecessors. The | 秦大河 任贾文 王文悌 J.R.Petit J.Jouzel | 1993 | Science China Chemistry1993，36，3： | 3 |
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