AUTHOR=Byun Do-Seong , Choi Byoung-Ju , Hart Deirdre Erin TITLE=Overcoming tide-related challenges to successful regional and coastal ocean modeling JOURNAL=Frontiers in Marine Science VOLUME=Volume 10 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2023.1150305 DOI=10.3389/fmars.2023.1150305 ISSN=2296-7745 ABSTRACT=Rapidly growing ocean data availability is fueling the establishment of new regional and coastal ocean models and operating systems, while growing global climate disruption necessitates robust long-term simulations of regional and coastal ocean processes and hazard risks. This work provides solutions for overcoming three fundamental, tide-related technical challenges in regional and coastal ocean modelling, challenges often encountered by those new to tide modelling: (1) automatic generation of tidal harmonic forcings from coarser tidal constant databases; (2) perpetual generation of interannual tidal predictions inside hydrodynamic models, such as in the Regional Ocean Modeling System (ROMS); and (3) producing ocean model harmonic constant forcing data using tide models. A modified tidal prediction code (set_tides.F) for continuous multi-decadal simulations in ROMS is provided as a practical solution to the second challenge, while the complete suite of techniques explained herein allows researchers to avoid tide related errors in establishing regional and coastal ocean models and operation systems and to harmonically analyze their output data.