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一、冰情概况 渤海是我国结冰海区之一。每年冬季,渤海都有不同程度的结冰现象。海冰从生成到消失,所经历的变化过程可划为三个阶段,即: 初冰期——从初冰日到封冻日,这段时间是结冰不断增加的过程; 封冻期——从封冻日到解冻日,这段时间是结冰迅速发展的过程; 融冰期——从解冻日到终冰日,这段时间是海冰融化消失的过程。 初冰日和终冰日分别指第一次结冰的日期和海冰最后消失的日期。从初冰日到终冰日,这段时间被称谓结冰期或冰期。根据资料统计,辽东湾北部大致在十一月中旬开始结冰,翌年三月下旬冰情结束;莱州湾南部大致在十二月上旬开始结冰,翌年三月上旬冰情结束。由南往北结冰期大约3-4个月。
First, the ice situation Bohai Sea is one of China’s icing sea. Every winter, the Bohai Sea has varying degrees of icing. Sea ice from birth to disappear, the changes experienced by the process can be divided into three stages, namely: the first ice period - from the ice day to the freezing day, this time is the process of increasing icing; freezing period - from frozen Day to thaw day, this time is the rapid development of icing process; melting ice period - from thawing day to the end of ice day, this time is the melting of sea ice disappears. The first ice day and the last ice day respectively refer to the date of the first icing and the date of the last disappearance of the sea ice. From the first ice day to the last ice day, this time is called the icing or ice period. According to statistics, the northern part of Liaodong Bay began to freeze roughly in mid-November and the end of ice in late March the following year. The southern part of Laizhou Bay began to freeze in the first ten days of December and the ice ended in early March the following March. From south to north freezing period of about 3-4 months.