Why do rating curves often require recalibration over time?单项选择题

题目图片
A

a. Because riverbed geometry can change due to erosion or deposition

B

b. Because water temperature changes affect the rating curve

C

c. Because rating curves are based on theoretical equations that become invalid during flood events

D

d. Because the level of the water table evolves over time

E

e. Because rating curves only work for confined aquifers

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