摘要
随着GNSS理论和应用的快速发展,基于多路径效应的全球定位系统干涉反射测量(GPS-IR)技术已被学者证明可用于潮位变化监测。针对海平面逐年上升、不断侵蚀沿海地区的严峻形势,也为进一步拓展GPS-IR技术在海洋潮汐领域的应用空间,利用布设在美国华盛顿州的GPS基准站(SC02站),对GPS基准站获取的13年的潮位数据进行潮波分析,并结合传统验潮站数据对3种全球海洋潮汐模型TPXO6.2、TPXO9和DTU10进行精度分析与对比试验。试验结果表明,通过GPS-IR反演潮位获取的振幅和迟角与对应验潮站获取的振幅和迟角差异较小;GPS基准站反演潮位获取的潮波系数与利用海潮模型计算得到的潮波系数具有较高的一致性,而且GPS-IR技术在用于获取潮波系数上有着较高的精度。
With the rapid development of GNSS theory and application,the global positioning system interferometric reflectometry(GPS IR)technology based on multipath effect has been proved by scholars to be used for tidal level change monitoring.In view of the severe situation that the sea level is rising year by year and constantly eroding the coastal areas,and in order to further expand the application space of GPS IR technology in the field of ocean tide,the tide wave analysis is carried out on the 13 year tide level data obtained by the GPS reference station(SC02 station)deployed in Washington state of the United States,and the accuracy of three global ocean tide models TPXO6.2,TPXO9 and DTU10 are analyzed and compared with the data from traditional tide stations.The test results show that the amplitude and delay angle obtained by GPS IR inversion of tide level are less different from those obtained by corresponding tide stations;The tidal wave coefficients obtained from the inversion of tide level by GPS reference station are consistent with those calculated by ocean tide model,and GPS IR technology has high accuracy in obtaining tidal wave coefficient.
作者
武慧琳
张双成
尹彤
张伟琪
WU Huilin;ZHANG Shuangcheng;YIN Tong;ZHANG Weiqi(Institute of Surveying and Mapping Standardization,MNR,Xi′an,Shaanxi,710054,China;Chang′an University,Xi′an,Shaanxi,710054,China;The First Geodetic Surveying Bridge,MNR,Xi′an,Shaanxi,710054,China)
出处
《测绘标准化》
2022年第1期11-17,共7页
Standardization of Surveying and Mapping
