Tidal consituents simulation

Hi, I’m Peter from South Korea. Thanks for development of this modeling sysyem.
I’m doing my research about groundwater flow in estuary in South Korea.
I practiced ‘Ammer Catchment’ problem thorough the benchmark guide book successfully.
Now, I want to apply my research area to simulate groundwater flow with tidal constituent.
Is there any solution or practical guide to combine tidal informations to groundwater flow so I can handle it? hope to get reply soon…
Sincerely, best regards…