Cipolletti notch and trapezoidal notch are two commonly used types of weirs in hydraulic engineering. Here are some advantages of Cipolletti notch over trapezoidal notch:
Cipolletti notch has a wider range of discharge measurement
Cipolletti notch is less prone to clogging
Cipolletti notch has a lower head loss
Cipolletti notch is easier to install
Cipolletti notch is suitable for measuring wide channels