摘要
针对陆缘深水区多波束测量声速剖面数据采集困难的问题,提出一种深海声速剖面EOF延拓方法,以测区少量全水深声速剖面采样数据为依据,采用EOF算法对未进行全水深采样的声速剖面进行声速全水深延拓。实例计算结果表明:采用该方法延拓得到的全水深声速剖面与实测的声速剖面具有较好的一致性,用延拓后的声速剖面进行声线追踪后得到的水深数据能够满足多波束水深测量精度要求。
In order to solve the dificulties of sound velocity profiles collection in the marginal deepwater areas,a expanding method of sound velocity profiles via EOF is proposed.Based on limited sound velocity profiles of full depth sampling,sound velocity profiles without full depth sampling can be expanded via EOF. The conclusions showthat the results of sound velocity corrections with the expanding results of the sound speed profiles can effectively meet the accuracy requirements of multibeam bathymetric data.
出处
《海洋测绘》
CSCD
2016年第2期26-29,共4页
Hydrographic Surveying and Charting
基金
国家自然科学基金(41576105)
关键词
多波束测深
陆缘深水区
声速剖面
EOF
延拓
测深精度
multibeam echosounding
marginal deepwater area
sound velocity profile
EOF
expanding
sounding accuracy
