新华社“雪龙”号８月１２日电（记者 璩静）中国第五次北极科学考察队在北冰洋大西洋扇区开展的综合调查已于当地时间１１日结束。记者获悉，这次历时８天的科学考察将作业区拓展到北冰洋大西洋扇区的挪威海和格陵兰海，共完成２个断面１６个站位的多学科综合科考任务，首次在水文大气、地质地球物理、海洋大气化学、海洋生物生态等多个学科领域获得大量关键数据和重要样品，在我国极地科考史上具有里程碑意义。

    The xinhua news agency“photo”On August 12-no.（Reporter Qu static）China's fifth arctic expedition in the arctic ocean science of comprehensive research on the Atlantic sector has local time, and end in November。The reporter learns，The last eight days of scientific survey will expand into the arctic ocean Atlantic sector assignments section of the Norwegian sea sea and Greenland，Were done two section 16 stance multidisciplinary integrated the task，For the first time in hydrological atmosphere、Geological geophysical、Marine atmospheric chemistry、Marine biological ecology, etc. Multiple disciplines acquire a large key data and important samples，In our country the polar expedition milestone in history。

    据第五次北极科考队首席科学家马德毅介绍，第五次北极科考队克服气旋造成的风大浪急等恶劣海况首次挺进北冰洋大西洋扇区，在挪威海等新增考察区域进行综合调查，此次获得的关键数据及后续样品分析将使我国在北极环境气候变化领域的研究更加全面、系统和深入，有利于推动我国极地科技和事业实现跨越式发展。

    According to the fifth the arctic expedition's chief scientists MaDeYi introduced，The fifth the arctic expedition overcome cyclone caused the roughest sea first into the arctic ocean in severe Atlantic sector，In Norway, the new area of study integrated investigation，The key data and subsequent for sample analysis will make our country environment in the arctic climate change of research in the field of more comprehensive、System and further，To promote the polar science and technology and cause the great-leap-forward development。

    ４日，第五次北极科考队在挪威海公海海域成功布放了中国极地科考史上第一座大型海气耦合观测浮标系统，这标志着我国自主研发的浮标观测与布放技术首次进入高纬度的深远海海域。据介绍，作为现代深层大洋环流的起点，北欧海是北冰洋和大西洋水体交换的重要通道，是北冰洋两大主要入流水源地之一。而挪威海正是北欧海的重要组成部分，被认为是“北极涛动核心区”，它影响着全球海洋循环和北半球气候，也是影响我国气候变化的关键海域。

    4 days，The fifth the arctic expedition in the Norwegian sea area the high seas success cloth China polar expedition history first a large air-sea coupling observation buoy system，This marked the independent research and development in our country the buoy observation and cloth technology into the profound sea for the first time at sea。According to introducing，As a modern deep ocean circulation of the starting point，Nordic sea is the arctic ocean and the Atlantic water exchange of important channel，The arctic ocean is one of the two main water inflow。And the Norwegian sea, it is an important part of the sea of northern Europe，Is considered to be“The arctic core out move”，It affects global ocean circulation and the northern hemisphere climate，Also is the key effect on our country's climate change waters。

    马德毅说，通过布放大浮标，我国将获得该海域大气边界层和中、上层海水多项重要参数的近２０项实时观测数据，填补了我国在这一关键海域的长时间序列气象、大气成分和水文数据的空白，对于提升我国海洋与气候预测、预报业务化能力，提高我国在北极环境与全球气候变化等关键领域的研究水平具有重大科研与应用价值。

    MaDeYi said，Through the cloth big buoy，Our country will get the atmospheric boundary and in the sea、Many important parameters of the top 20 of real-time data，Fill in the areas of the key in this a long time series weather、Atmospheric composition and hydrological data the blank，In upgrading our ocean and climate prediction、The ability of operational forecast，Improve our country in the arctic environment and global climate change and other key of research in the field of the level has important scientific research and application value。

    据悉，水文学方面，此次科考首次实现了对最新生成大洋底层水的直接观测并开展了上层海洋湍流混合观测；海洋化学方面，实现了硝酸盐上层剖面观测，首次全面开展近百种环境微污染物特征及来源识别，采集了海水样品逾３０００个；地球物理方面，首次对洋中脊的水深、重力、磁力和构造进行调查，并对调查区域的地壳厚度、磁化强度和断层形态进行了研究；地质取样方面，取样成功率达到１００％，重力管取样最大取样长度达４．６米。此外，科学家还发现，北冰洋大西洋扇区上层海洋浮游生物群落组成与白令海差异明显，且生物量要明显高于北冰洋太平洋扇区，其中浮游植物以微型为主，浮游动物则以中、小型为主。

    It is reported，Hydrology aspects，The expedition to the latest generation firstly realized the bottom of the ocean water directly observed and carried out the upper ocean turbulent mixed observation；Marine chemistry，Realize the upper section nitrate observation，The first to carry out comprehensive environmental pollutants and the source of the characteristics identification，Water samples collected more than 3000；The earth's physical aspects，For the first time, the mid-ocean ridge water depth、gravity、Magnetic force and structure in the investigation，And the survey of the regional crust thickness、Magnetic strength and fault form；Geological sampling aspects，Sampling rate reached 100%，The biggest gravity sampling sampling length of 4.6 m。In addition，The scientists also found that，The arctic ocean Atlantic sector upper Marine plankton community composition and the bering sea differences are significant，And biomass significantly higher than the arctic ocean to the Pacific sector，Among them the phytoplankton to miniature primarily，Zooplankton criterion with、Mainly small。