格陵兰海近海海域夏季海水水质特征分析

2010年7月,在北京青少年科技俱乐部组织的北极科学考察活动过程中,对斯瓦尔巴德群岛、格陵兰岛以及冰岛的近海海域进行表层海水水样、冰样及陆地径流的采集。对采集样品的9项指标分析结果表明,海水样品中未检到F^-和NO₃^-;其他离子含量的排序依次为:Cl^-,Na⁺,SO₄^2-,Mg²⁺,K⁺,Ca²⁺,与自然海水常规离子含量的排序基本一致;各离子含量与氯度的比值与恒比定律中给出的值基本一致,证明了北极海水主要受到陆地降水直接补给。近岸海水的离子含量远远低于远岸海水的原因是由于冰川融化,通过地表径流的方式补给表层海水有关。斯瓦尔巴德群岛的地表径流中存在有NO₃^-,但对所采海水样品的检验中,未检测到NO₃^-,说明地表径流中的NO₃^-在海水的对流等作用下得以充分稀释。

Seawater Quality Characteristic of Greenland Coastal Waters in Summer

Sampling of surface seawater,ice and runoff were carried out during the Arctic scientific expeditions in July in 2010,which was organized by Beijing Teenager Science and Technology Club.The study area was coastal waters of Greenland,Svalbard and Iceland.The water quality analysis results showed that F-and NO3-were not detected.Concentrations of macro-components in seawater were sequenced as Cl-> Na+ > SO42-> Mg2+ > K+ > Ca2+,which was accordant with general seawater.The ratio between concentration of all io...