“…It involves instant measurements contributing to the understanding and calculation of sea level changes, mean, lowest, and highest sea levels, tide amplitude, and phase. Various sensors, including tide gauges, GNSS (Global Navigation Satellite System), and satellite radar altimeters, contribute to global coverage and complement fixed point observations [18]. The international organization The Global Sea Level Observing System (GLOSS), established in 1985, aims to provide standardized sea level data globally.…”