摘要
基于全球定位系统的多路径反射(GPS-MR)测量技术的潮位监测已经成为验潮站监测的有效补充,但较少学者利用GPS-MR反演潮位进行潮汐调和分析和预报。为了验证GPS-MR潮位预报的可能性,利用美国大陆板块边缘观测组织(PBO)提供的GPS信噪比数据进行潮位反演,将该反演结果重采样为等间隔潮位序列,利用该潮位序列计算各分潮的调和常数,并进行潮汐预报。通过与美国海洋与大气局(NOAA)提供的实测验潮数据进行对比,结果表明:GPS-MR反演潮位与验潮站实测潮位具有一致性,相关系数为0.94,均方根误差为0.16 m;经样条函数拟合后的1 h GPS-MR潮位序列预测结果同采用验潮站潮位进行预测结果精度相当,同验潮站实测潮位的均方根误差为0.14 m,相关系数为0.97。可见,利用GPS-MR技术进行潮位监测和预报是可行的。
The use of global positioning system-multipath reflection(GPS-MR)for tide level monitoring has become an effective supplement for tide station monitoring,but only a few scholars have used GPS-MR for tide level inversion for tide prediction.To investigate the possibility of GPS-MR tide level prediction,the GPS signal-to-noise ratio data provided by the continental Plate Edge Observing Organization(PBO)was used to perform tide level inversion,resampled the inversion results as equal-interval tide level series.It calculated the harmonic constants of each tide component using the tide level series and performed tide prediction.The results show that the GPS-MR inversion tide levels are consistent with the measured tide levels at tide stations,with a correlation coefficient of 0.94 and a root-mean-square error of 0.16 m.The result of GPS-MR tide level prediction is not different from that of tide level prediction by tidal station.The root-mean-square error of the measured tide level by tidal station is 0.14 m,and the correlation coefficient is 0.97.Therefore,it is feasible to use GPS-MR technology to monitor and forecast tide level.
作者
王森
刘立龙
黄良珂
周威
WANG Sen;LIU Li-long;HUANG Liang-ke;ZHOU Wei(College of Geomatics and Geoinformation,Guilin University of Technology,Guilin 541004,China;Guangxi Key Laboratory of Spatial Information and Geomatics,Guilin 541004,China;School of Electric Engineering,Naval University of Engineering,Wuhan 430079,China)
出处
《科学技术与工程》
北大核心
2021年第9期3481-3486,共6页
Science Technology and Engineering
基金
国家自然科学基金(41664002,41771487,42064002)
广西自然科学基金(2017GXNSFDA198016,2018GXNSFAA294045)
广西空间信息与测绘重点实验室开放基金(19-050-11-02)
广西“八桂学者”岗位专项。
关键词
全球定位系统
潮位监测
潮汐预报
基于全球定位系统的多路径反射(GPS-MR)
潮汐分析
global positioning system(GPS)
tidal level monitoring
tidal level forecast
global positioning system-multipath reflection(GPS-MR)
harmonic tidal analysis
