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以羌塘高原普若岗日冰原钻取的213m冰芯中记录为基础,研究了过去100年来δ18O变化所反映的这一地区的温度变化.结合已获取的青藏高原南部的达索普冰芯、西北部的古里雅冰芯和东北部的敦德冰芯,综合研究了青藏高原温度变化的区域差异.结果表明,青藏高原不同地区冰芯中δ18O变化各有特点,特别是南、北差异和东、西差异十分明显.但4根冰芯记录均反映出过去100年来δ18O增加的趋势,说明过去100年来青藏高原在不断变暖.将δ18O记录所反映的青藏高原温度变化、青藏高原气象记录的温度变化同北半球温度变化比较研究发现,这些记录所反映的过去100年总体变暖趋势是一致的.
Based on the records of 213m ice cores drilled from Puruogangri ice sheet on the Qiangtang Plateau, the temperature changes in the region reflected by the δ18O over the past 100 years were studied. Combining the acquired Dasuopu ice core , The Guliya ice core in the northwestern part of China and the Dunde ice core in the northeast of China, and the regional differences of temperature changes in the Qinghai-Tibet Plateau are comprehensively studied.The results show that the δ18O changes in ice cores in different areas of the Qinghai-Tibet Plateau have their own characteristics, especially the south and north differences However, the records of the four ice cores all reflect the trend of δ18O increasing over the past 100 years, which shows that the Qinghai-Tibet Plateau is warming over the past 100 years. The changes of the temperature in the Qinghai-Tibet Plateau reflected by the δ18O record, A comparison of recorded temperature changes with temperature changes in the northern hemisphere found that these records reflect a consistent trend of overall warming over the past 100 years.