A crossover adjustment for improving sea surface height mapping from in-situ high rate ship-borne GNSS data using PPP technique

Jinyun Guo*, Zhenghua Dong, Zhengguang Tan, Xin Liu, Chuanfa Chen, Chein-way Hwang

*此作品的通信作者

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

Ship-borne global navigation satellite system (GNSS) technique can overcome the weakness of satellite altimetry and tide gauge in measuring sea surface heights (SSHs) over coastal seas. Ship-borne GNSS technique can be used to calibrate SSHs determined by the satellite altimetry and tide gauge. The ship-borne GNSS data are processed with the single-epoch precise point positioning (PPP) method to estimate SSHs which are filtered by the Gaussian filter to weaken and/or remove effects of sea wind and wave field. Tidal corrections are also taken into consideration to improve SSHs. One crossover adjustment method is put forward to calculate the bias and drift along the ship route and assess the accuracy of SSHs. We processed the in-situ ship-borne GPS data over the offshore sea around Keelung to compute precisely SSHs with the single-epoch PPP. Statistical results of SSH differences of crossover points indicate that the root mean squares error of SSHs determined by the ship-borne GPS is up to level of 12.9 cm over the offshore sea ~30 km far away to land.

原文English
頁(從 - 到)54-60
頁數7
期刊Continental Shelf Research
125
DOIs
出版狀態Published - 15 8月 2016

指紋

深入研究「A crossover adjustment for improving sea surface height mapping from in-situ high rate ship-borne GNSS data using PPP technique」主題。共同形成了獨特的指紋。

引用此