Jim, I am reading the bigger La Nina closer to 2020, but as I said before I want to get the physics solidified before.

Should also revisit the sea-level height readings as I found some biennial characteristics in the long-term Sydney Harbor readings.

I also have an idea on how to solve for the best fit model by finding the roots to an extended polynomial equation. I am sure readers of this forum can guess the approach as it is one of those clever mathy things.