Accuracy assessment and station comparison utilizing the GNSS-IR water level measurements:case studies in the northern South China Sea and southern Japan
Accuracy assessment and station comparison utilizing the GNSS-IR water level measurements:case studies in the northern South China Sea and southern Japan
In this study,we quantitatively analyze the factors influencing the inversion accuracy of tide or storm surge processes at several representative nearshore GNSS(Global Navigation Satellite System)stations in the northern South China Sea and Japan.Our findings indicate that the number of satellite signal bands received by the receiver and the power of the reflected signal significantly affect the time resolution and accuracy of the inversion.This research quantifies the benefits derived from employing multi-mode and multi-frequency GNSS monitoring for storm surges in the Hong Kong HKQT station.Furthermore,it highlights the capability of the Japanese J425 site to capture a comprehensive storm surge waveform in regions lacking tide stations.In addition,this study offers specific recommendations for future deployment of nearshore GNSS stations equipped with sea level measurement capabilities,taking into consideration factors such as satellite signal receiving bands,hardware configurations,station installation locations,and installation heights.
关键词
GNSS-IR/长期水位/风暴潮/反演影响因素
Key words
GNSS-IR/long-term water level/storm surge/influence factors of inversion
维普
万方数据