气候变化领域集成服务门户(CCPortal): Comparing Non-Tidal Ocean Loading Around the Southern North Sea With Subdaily GPS/GLONASS Data

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DOI	10.1029/2020JB020685
	Comparing Non-Tidal Ocean Loading Around the Southern North Sea With Subdaily GPS/GLONASS Data
	Geng J.; Xin S.; Williams S.D.P.; Jiang W.
发表日期	2021
ISSN	21699313
卷号	126 期号:3
英文摘要	Observing subdaily surface deformations is important to the interpretation of rapidly developing transient events. However, it is not known whether Global Navigation Satellite System (GNSS) is able to identify millimeter-level transient displacements over various subdaily timescales. We studied non-tidal ocean loading (NTOL) using 18 GNSS stations along the southern North Sea for November–December 2013 and compared 3-h GPS/GLONASS displacements with NTOL predictions. It was found that they overall agreed well with a mean correlation coefficient of 0.6 and their vertical differences had an RMS of 5.7 mm, but a 10-mm subsidence prediction for December 5th could only be marginally detected. Hence, the spatial coherence among the loading signatures at the 18 stations was harnessed to improve subdaily GNSS, and then the predicted displacements of 5–10-mm over the subdaily timescales could be discriminated successfully. We envision that adding Galileo/BeiDou signals to GPS/GLONASS can further improve the resolution of subdaily GNSS, which can also enhance the spatial coherence of transient signals captured by regional GNSS stations. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	higher-order ionosphere delays; multipath; principal component analysis; storm surge loading; subdaily multi-GNSS; wavelet analysis
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187279
作者单位	GNSS Research Center, Wuhan University, Wuhan, China; National Oceanography Centre, Liverpool, United Kingdom
推荐引用方式 GB/T 7714	Geng J.,Xin S.,Williams S.D.P.,et al. Comparing Non-Tidal Ocean Loading Around the Southern North Sea With Subdaily GPS/GLONASS Data[J],2021,126(3).
APA	Geng J.,Xin S.,Williams S.D.P.,&Jiang W..(2021).Comparing Non-Tidal Ocean Loading Around the Southern North Sea With Subdaily GPS/GLONASS Data.Journal of Geophysical Research: Solid Earth,126(3).
MLA	Geng J.,et al."Comparing Non-Tidal Ocean Loading Around the Southern North Sea With Subdaily GPS/GLONASS Data".Journal of Geophysical Research: Solid Earth 126.3(2021).