Redistribution of the percentage of tropical cyclone energy in the globe

Tropical cyclone (TC) risk often varies with changes in the distribution of TC energy within and between basins. Little is known how global tropical cyclone energy is redistributed under global warming. By studying the contribution of individual basin TCs to the global TC activity, the study reveals the process of energy redistribution among different tropical cyclone categories. Results indicate that the distribution of accumulated cyclone energy (ACE) varies among the different tropical cyclone categories in a given basin. The percentage of the ACE in an individual basin has undergone significant redistribution over several decades. The changes in impact factors in specific basins during the active tropical cyclone season are discussed in relation to those factors in other basins, and they are found to vary among the basins. Furthermore, the models from the Coupled Model Intercomparison Project Phase 6 (CMIP6) show trends in the distribution of TC energy in the future.