Projecting the Changes in Multifaceted Characteristics of Heatwave Events Across China

Abstract Understanding future variations and trends of heatwave events has critical implications for the ecosystem human health. However, diverse metrics affect comparable assessment evolution at regional scales. The inadequate consideration enhanced warming trend local antecedent heat conditions different climate zones undermines comprehensive understanding changes. Here, we systematically assess in duration, frequency, intensity China from 1961 to 2100, using historical observations model simulations Coupled Model Intercomparison Project Phase 6. increased rates duration frequency are more evident than those severe days. Regionally, northern western regions projected suffer longer frequent consecutive heatwaves, while southern likely greater risk A comparison among four scenarios shows that characteristics by high forcing Shared Socioeconomic Pathway (SSP5‐8.5) exhibit substantial intensification other three experiments, imposing intractable dangers numerous organisms ecosystems. Under SSP1‐2.6, acceleration all is slow down after 2040. In addition maximum temperature, temperature advections contribute regions. Our results provide a events. changes across unevenly developed necessary improving adaptive capacity extreme risk.