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Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Fig. 1 | Geoscience Letters

Fig. 1

From: Tidal asymmetry and transition in the Singapore Strait revealed by GNSS interferometric reflectometry

Fig. 1

a Geographic locations of our study area (white rectangle) and the two grid points (G1 and G2) of the satellite altimetry product which are the nearest to GNSS stations SNSC and SSTS in b. Color map represents tidal form factor, which is defined by the ratio of the amplitudes of the two main diurnal and semidiurnal constituents (\({K}_{1}\),\({O}_{1}\), \({M}_{2}\) and \({S}_{2}\)), \(F= \left({A}_{{K}_{1}}+ {A}_{{O}_{1}}\right)/\left({A}_{{M}_{2}}+ {A}_{{S}_{2}}\right)\). The amplitudes used to make this map were taken from the Oregon State University TPXO8-atlas global tide model. Tidal forms are classified as follows: \(0<F<0.25\), semidiurnal; \(0.25 <F <1.5\), mixed and mainly semidiurnal; \(1.5 <F < 3.0\), mixed and mainly diurnal; \(F >3.0\), diurnal. b Geographic locations of the two GNSS stations (SNSC and SSTS) and two tide gauges with hourly (TP) and monthly (SS) records publicly available

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