冰范围 meaning in Chinese

ice extent

In addition to the thermal reasons , the advection of arctic sea ice ( pacific section ) , which is the result of dynamic factors , is closely related to the frequency shift that occurred in chukchi sea
楚科奇海海冰范围的年际变化中存在由低频向高频变化的现象，该现象除了在局地气温变化中存在之外，在北冰洋区域风涡度、波弗特海纬向风、东西伯利亚海经向风等动力因素中也有所体现。
The different distributions of surface level pressure , wind ( 10 meter ) and surface air temperature before and after the regime shift indicate that the increase of aleutian low , position change of its core , and the change of wind field in accordance , especially during the winter months , are the major dynamic reasons for the significant reduction of ice extent in bering sea
结果表明： 20世纪70年代后期，海冰范围在白令海存在显著的均值突变现象，而楚科奇海在对应阶段则表现为更明显的变频现象；在突变点前后两个时段里，阿留申低压中心低压加强、核心位置偏移以及对应风场分布的变化是导致白令海海冰范围明显缩小的主要动力原因。