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2010年7月参加第三届北京中学生北极科学考察活动,收集了北极沿岸地区的挪威斯瓦尔巴德群岛(Svalbard)、冰岛、格陵兰沿岸地区的海水、沿岸海水、海冰表面冰样、地表径流等水体样品,对样品进行了氢氧稳定同位素成分测定,分析了北极沿岸地区水体的水循环过程.结果表明,该地区不同水体中的稳定同位素具有不同特征.沿岸海水中δ18 O与δD的变化受到了陆地来水的影响,而且与离海岸远近、取样点是开放海域还是峡谷地带、陆地的大小都有关系;海水、降水(包括径流、冰川冰、海冰上层冰)的δ18 O与δD关系线存在着完全不同的结果,而受陆地补充影响明显的海水中δ18 O与δD关系线介于二者之间.通过稳定同位素方法可以估算出近岸海水中陆地补给与平均海水补给的贡献率,在格陵兰峡谷深处的海水中有约1/3来自于冰川融水,而约2/3来源于平均海洋水.
In July 2010, he participated in the Third Beijing North School Students’ Arctic Scientific Expedition and collected seawater, coastal seawater, surface sea ice samples, surface runoff from Svalbard in Norway’s Arctic Peninsula, coastal areas in Iceland and Greenland. And other water samples were used to determine the stable isotope composition of hydrogen and oxygen in the samples and analyze the water cycle process in Arctic coastal waters.The results show that the stable isotopes in different waters have different characteristics.The changes of δ18O and δD in coastal waters are affected by The impact of land-water, but also with the distance from the coast, the sampling point is open sea or canyon area, the size of the land has a relationship; seawater, precipitation (including runoff, glacier ice, sea ice ice) δ18 O and δD relationship The results show that δ18O and δD in the seawater with obvious effect of land replenishment are in between.The stable isotope method can estimate the contribution rate of land recharge and average seawater recharge in coastal seawater About a third of the seawater deep in the Greenland gorge comes from melting glaciers, while about two-thirds of it comes from average ocean water.