GB/T 20486-2026
UpcomingGrade of watershed areal rainfall
江河流域面雨量等级
Application Summary AI generated
This standard defines the classification of areal rainfall over river basins, specifying grade thresholds and calculation methods for average rainfall depth across a watershed. It is applied in hydrology, flood control, and water resource management for assessing rainfall intensity, issuing warnings, and supporting decision-making in flood prevention and drought relief operations.
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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.