摘要
声速改正是海底地形探测资料处理的关键技术环节之一,而声速剖面的质量则将从源头上影响声速改正的精度。针对当前深远海海域海底地形探测中在何时、何地布放何种声速仪器获取声速剖面性价比更高的技术难题,提出将海底地形和温盐场作为在深度方向和时空间布放声剖站的设计依据,开展了基于WOA13温盐场提高XBT计算声速剖面精度试验。结果表明,基于已有的海底地形和温盐场可提高深远海海域声速剖面站布设的性价比。
Sound velocity correction is the key technical process in the data processing of bathymetric surveying and the quality of sound speed profile will produce direct influence on sound velocity correction. When and where to Set up an appropriate sound speed profile is a technical problem in the bathymetric surveying in the deep sea. Therefore the design of sound speed profile is brought forward by considering the submarine topography and temperature salinity field at the depth direction and in time and space. Howto improve the precision of the sound velocity profile of XBT in deep waters based on WOA13 is researched in this paper.Using the submarine topography and the temperature salinity field can improve the efficiency of setting up an appropriate sound speed profile in the deep sea.
出处
《海洋测绘》
CSCD
2017年第3期12-16,20,共6页
Hydrographic Surveying and Charting
基金
国家自然科学基金(41474012
41174062
41374018)
国家重大科学仪器设备开发专项(2011YQ12004503)
关键词
海底地形测量
声速剖面
声速改正
温度剖面
盐度剖面
bathymetric surveying
sound speed profile
sound velocity correction
temperature profile
salinity profile
