I understand there is a semi-daily and daily solar earth tides (S1,S2) because the earth is rotating around its axis.
I understand there is an annual and semi-annual solar earth tides (Sa, Ssa) because the distance and inclination of the earth relative to the sun change during the year.
Now, my logic says that S1 and S2 should also change amplitudes slightly during the year since the distance to sun is changing. Is that same thing as the annual solar tide? To be clear, I'm not asking if its the same amplitude, I'm asking if its the same thing. Or is there a change in the daily tide amplitude and an annual tide?
I really hope that's clear