论文部分内容阅读
密度是海冰资源的一个重要物理参数,它受许多因素的影响,有着较大的变动范围。本文以渤海沿岸连续两个年份的平整冰和堆积冰为研究对象,将海冰密度分为实密度和表观密度两种类型,并给出了相应的定义、实验和计算方法;通过一系列的实验和数据分析,得出渤海湾和辽东湾沿岸的海冰在密度分布方面具有一定的规律性。研究结果表明平整冰密度介于0.633-0.918g/cm3之间,堆积冰的密度变化范围为0.615-0.906g/cm3。在同一地点,不同年份的海冰密度大小存在差异,但是平整冰的实密度和表观密度均高于堆积冰。利用两种密度值计算得出的海冰空气孔隙率对于了解海冰性质的空间分布规律以及指导渤海海冰资源的开发利用具有积极的意义。
Density is an important physical parameter of sea ice resources. It is influenced by many factors and has a large range of variation. In this paper, flat ice and stacked ice in two consecutive years along the coast of Bohai Sea are taken as research objects. Sea ice density is divided into two types: solid density and apparent density, and corresponding definitions, experiments and calculation methods are given. It is concluded that the sea ice in the Bohai Bay and the Liaodong Bay has a certain regularity in the density distribution. The results show that the density of flat ice varies from 0.633 to 0.918 g / cm3, and the density of ice accumulation ranges from 0.615 to 0.906 g / cm3. At the same location, sea ice density varies in different years, but the solid density and apparent density of flat ice are higher than that of ice accumulation. The sea air air porosity calculated by using two kinds of density values has a positive meaning to understand the spatial distribution of sea ice properties and to guide the exploitation and utilization of sea ice resources in the Bohai Sea.