I will treat this as a genuine question. This is a complex topic. You could start by reading "The Art and Science of Climate Model Tuning". https://journals.am

I will treat this as a genuine question. This is a complex topic. You could start by reading "The Art and Science of Climate Model Tuning". https://journals.ametsoc.org/view/journals/bams/98/3/bams-d-15-00135.1.xml https://journals.ametsoc.org/view/journals/bams/98/3/bams-d-...