Fig. 5From: Tidal asymmetry and transition in the Singapore Strait revealed by GNSS interferometric reflectometryVan de Casteele diagram as a two-dimensional density of the differences \(\Delta h\) between the GNSS (GPS L1–C/A and GLONASS L1C) and tide-gauge sea level measurements as a function of the sea level \({h}_{\mathrm{TG}}\). Contour levels are linear, in arbitrary units. The mean of \(h\) is set to zeroBack to article page