tropical cyclone

• Number of days with tropical cyclone warning signal
  热带气旋警告信号悬挂日数
• Enhanced information on tropical cyclone intensity
  加强热带气旋强度资料服务
• Forecast track and intensity of tropical cyclone
  热带气旋路径图及强度预测
• Economic and social effects of tropical cyclones
  热带气旋对经济及社会的影响
• Position the cursor over the tropical cyclone icon
  把滑鼠指标移到上图的热带气旋图示(