Quantifying tropical cyclone intensity change induced by sea surface temperature

The relationship between sea surface temperature (SST) and tropical cyclone (TC) intensity change exhibits a strong dependence on the current TC intensity. Using western North Pacific observations from 1982 to 2018, threshold SST (TSST) is identified as required maintain TSST increases with intensity, TCs intensifying weakening when higher lower than TSST, respectively. Across dataset, mean proportional difference TSST. This study also formulates an equation quantify using which replicates 99.46% of observed changes. could serve alternative linear regression-based that widely used in statistical-dynamical models, thereby improving forecasts.