The simulation of the observation data in predicting tidal patterns using the Admiralty method in Dumai’s harbourAndy Hendri, Manyuk Fauzi, Rosmiati Ahmad, Andarsin Ongko and Fajri AlmannaMATEC Web Conf., 276 (2019) 04020DOI: https://doi.org/10.1051/matecconf/201927604020