声纳探测北极海冰吃水深度规律的仿真分析  

Simulation Analysis of Arctic Sea Ice Draft Sonar Detection

作　　者：周康颖 李倩倩[1] 李宏琳 史娟 ZHOU Kangying;LI Qianqian;LI Honglin;SHI Juan(College of Surveying Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266590

出　　处：《地理空间信息》2022年第5期124-127,共4页Geospatial Information

摘　　要：针对全球变暖,对北极海冰吃水深度进行了研究。以1960—2005年潜艇在北冰洋收集的仰视声纳海冰吃水数据为数据源,以选样的方式在北极地区选取10个测区,分为同纬度范围测区与同经度范围测区两个板块,对每个测区内各年份海冰吃水数据进行统计、仿真、拟合,对比分析相同测区不同年份海冰吃水深度的变化规律;对比分析相同纬度范围和相同经度范围5个测区内的海冰吃水深度状况。结果表明,随着年份的递进,各测区内海冰吃水深度均值明显减小,纬度愈低、变化越快;1980—1990年海冰吃水深度出现了两次大的浮动。We studied the depth of Arctic sea ice draught for global warming. The data for this study consists of submarine updraft sonar sea ice draught data collected from 1960 to 2005 in the Arctic Ocean. Ten survey areas in total were selected for the vast Arctic area with sample selection and divided into the same latitude range. With two plates in the same longitude range, this study extracted the sea ice draught data of each year in each measurement area for statistics, simulation and fitting, compared the sea ice draught change law in different years in the same measurement area, and compared the draught status of sea ice in the five measurement areas of the same latitude range and the same longitude. It was found that the mean value of sea ice draught decreased significantly as the year progressed in each survey area. The lower the latitude, the faster the change. There were two large fluctuations in the depth of sea ice draft between 1980 and 1990.

关 键 词：仰视声呐 全球变暖 海冰吃水深度 变化规律 

分 类 号：P229[天文地球—大地测量学与测量工程]