GB/T 27964-2011
ActiveGrade of fog forecast
雾的预报等级
Application Summary AI generated
GB/T 27964-2011 specifies the classification criteria for fog intensity in weather forecasts, defining grades from light to heavy fog based on visibility thresholds. It is applied by meteorological agencies in China for standardizing public fog warnings and by transportation sectors (aviation, maritime, highway management) to assess operational risks and issue safety alerts. The standard ensures consistent communication of fog severity across weather services and emergency response systems.
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