And this is a good survey paper on tsunami detection and how it relates to tidal prediction.
S. Consoli, D. R. Recupero, and V. Zavarella, [“A survey on tidal analysis and forecasting methods for Tsunami detection,”](https://t.co/99oJArTzdo) J. Tsunami Soc. Int.
33 (1), 1–56.
The question is whether we can one use knowledge of tides to deconvolute a tsunami signal from the underlying tidal signal.
This paper cites the one above
Percival, Donald B., et al. ["Detiding DART® buoy data for real-time extraction of source coefficients for operational tsunami forecasting."](https://arxiv.org/pdf/1403.0528) Pure and Applied Geophysics 172.6
This is what the raw buoy signal looks like, with the tsunami at the end:
After removing the tidal signals, the isolated tsunami impulse response (due to the 2011 Japan quake) looks like: