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

Question

Quizplus · Accepted Answer

The statistical rating of flood discharge is primarily based on historical records of discharge during precipitation events. This data allows for the determination of the probability and magnitude of future floods. Factors such as channel depth and floodplain width may also be considered, but are not the primary factors used in determining flood discharge ratings. The rate of aggradation or degradation of a stream may affect its capacity to handle floodwaters but is not a direct factor in determining flood discharge ratings.

The Statistical Rating of Flood Discharge Is Based on