从测站环境和监测要求2个方面分析经典改正法和最小二乘改正法在海潮监测中的适用性。结果表明，2种方法均能改正误差，提高反演精度，且具有不同的适用性。经典改正法在正常气象情况下改正效果较好且基本不改变结果的时间分辨率，而最小二乘法更适用于风暴潮或海啸等特殊情况。当监测有效方位角较小的海域时，2种方法改正效果均会降低，且经典改正法受影响更大。"/>
This paper analyzes the application of the classical correction method and the least squares correction method in tidal monitoring from aspects of station environment and monitoring requirements. The results show that both methods can correct the error and improve the inversion precision, and that the two methods have different applicability. When the weather conditions are normal, the correction effect of the classic correction method is better, and the time resolution of the result is not changed substantially. The least square method is more suitable for special situations such as storm surge or tsunami. It is considered that when the effective azimuth of the sea area is small, the correction effect of both methods is reduced and the classical correction method is more affected."/>
GNSS-IR海潮监测的动态改正方法对比分析
Abstract：This paper analyzes the application of the classical correction method and the least squares correction method in tidal monitoring from aspects of station environment and monitoring requirements. The results show that both methods can correct the error and improve the inversion precision, and that the two methods have different applicability. When the weather conditions are normal, the correction effect of the classic correction method is better, and the time resolution of the result is not changed substantially. The least square method is more suitable for special situations such as storm surge or tsunami. It is considered that when the effective azimuth of the sea area is small, the correction effect of both methods is reduced and the classical correction method is more affected.
WANG Jie,HE Xiufeng,WANG Xiaolei et al. Comparative Analysis of Dynamic Correction Method in Tidal Monitoring by GNSS-IR[J]. jgg, 2020, 40(8): 811-817.
