首页|Monitoring absolute vertical land motions and absolute sea-level changes from GPS and tide gauges data over French Polynesia
Monitoring absolute vertical land motions and absolute sea-level changes from GPS and tide gauges data over French Polynesia
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国家科技期刊平台
NETL
NSTL
万方数据
维普
In this study,we estimate the absolute vertical land motions at three tidal stations with collocated Global Navigation Satellite System(GNSS)receivers over French Polynesia during the period 2007-2020,and obtain,as ancillary results,estimates of the absolute changes in sea level at the same locations.To verify our processing approach to determining vertical motion,we first modeled vertical motion at the In-ternational GNSS Service(IGS)THTI station located in the capital island of Tahiti and compared our estimate with previous independent determinations,with a good agreement.We obtained the following estimates for the vertical land motions at the tide gauges:Tubuai island,Austral Archipelago-0.92±0.17 mm/yr,Vairao village,Tahiti Iti:-0.49±0.39 mm/yr,Rikitea,Gambier Archipelago-0.43±0.17 mm/yr.The absolute variations of the sea level are:Tubuai island,Austral Archipelago 5.25±0.60 mm/yr,Vairao village,Tahiti Iti:3.62±0.52 mm/yr,Rikitea,Gambier Archipelago 1.52±0.23 mm/yr.We discuss these absolute values in light of the values obtained from altimetric measurements and other means in French Polynesia.
GPSTide gaugesSea level changesVertical land motion
Geodesy Observatory of Tahiti,University of French Polynesia,Faa'a 98702,French Polynesia
Catholic University of Louvain,Georges Lemaître Centre for Earth and Climate Research(ELI),1348 Louvain-la-Neuve,Belgium
GNSS Research Center,Wuhan University,Wuhan 430079,China
State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China
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University of French Polynesialocal government of French PolynesiaNational Natural Science Foundation of Chinafthe Fundamental Research Funds for the Central Universities
国家科技期刊平台
NSTL
万方数据
维普
