摘要
无验潮水深测量是利用RTK(real-time kinematic)测得的GPS天线精确的三维坐标确定定位点的平面位置,RTK高程结合由测深仪同步测得的水底点水深值换算出同一平面位置上定位点的水下高程或水深值。无验潮水深测量具有工作效率高,省工省时等特点。本文对无验潮及验潮水深测量方式的原理进行了介绍,对无验潮水深测量的测深精度进行了分析,依托工程实例,采集验潮和无验潮两种方式的测深数据,以数学统计方法对两组数据进行比对分析,并对无验潮水深测量的测深精度进行了检验。
Non-tidal observation bathymetric survey is to determine the plane position of the positioning point by using the accurate three-dimensional coordinates of the GPS antenna measured by RTK(real-time kinematic). The RTK elevation is combined with the water depth value of the tide gauge station synchronously measured by the bathymeter to convert the underwater elevation or water depth value of the positioning point at the same plane position. Non-tidal observation bathymetric survey is economical and has high working efficiency. This paper introduces the theory of tidal and non-tidal observation bathymetric survey,analyses the depth accuracy of non-tidal way. Based on engineering cases,the paper collects the data of depth measuring of both methods,applies the statistical method to comparatively analyses the results of both survey ways,and verifies the depth accuracy of non-tidal observation bathymetric survey.
作者
欧乐
吴年丰
张建
OU Le;WU Nianfeng;ZHANG Jian(Naval South China Sea Engineering Design Institute,Zhanjiang 524006,China;The Third Bureau directly under China Coast Guard,Guangzhou 520320,China;Power China Qinghai Electric Power Design Institute Co.,Ltd.,Xining 810008,China)
出处
《测绘地理信息》
CSCD
2022年第2期45-48,共4页
Journal of Geomatics
基金
国家自然科学基金青年科学基金(41801379)。
