Marine Heatwaves and Cold Spells in Global Coral Reef Regions (1982–2070): Characteristics, Drivers, and Impacts全球珊瑚礁区域海洋热浪与寒潮事件(1982–2070年):特征、驱动因素及影响Remote Sensing 2025, Vol. 17, Page 2881IF4.12025-08-200PRE