The statistical rating of flood discharge is based on
A) historical records of discharge during precipitation events.
B) floodplain width.
C) average channel depth.
D) the rate of aggradation or degradation of a stream.

Question

Quizplus · Accepted Answer

The statistical rating of flood discharge is based on historical records of discharge during precipitation events. These records help in determining the maximum discharge that a stream channel can handle without causing damage to the surrounding areas. Flood discharge rating involves the frequency and magnitude of past and potential future floods. Therefore, option A is the best choice. The other options (B, C, and D) may influence flood discharge but are not directly used in the statistical rating of flood discharge.

The Statistical Rating of Flood Discharge Is Based on