Original hourly water level data in support of the publication \"Multi-regional observations and validation of the M3 ocean tide \" submitted to Science China Earth Sciences, June 2023

This is an archive of hourly water level data for the locations used in the publication \"Multi-regional observations and validation of the M3 ocean tide \". All files are in MATLAB .mat format and contain two variables: -\"t\" is time (in native MATLAB datenum format (days since Jan 1, 0000). -\"h\" is water level, in units of meters. Filenames and locations can be cross-referenced from Table S1 of the publication.