GB/T 21987-2017
ActiveGrades of cold wave
寒潮等级
Application Summary AI generated
GB/T 21987-2017 defines the classification criteria for cold wave events based on temperature drops and affected areas. It is applied in meteorological monitoring and early warning systems across China to standardize the grading of cold waves for disaster prevention and public safety. The standard is used by weather services, emergency management agencies, and related industries to assess and communicate the severity of cold wave impacts.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.