S/N

Method

Regression equation

Correlation

coefficient (cc)

Standard error

1

Muskingum

Method

Y = 0.964X + 14.67

0.9769

0.4262

2

Level Pool method

Y = 0.993X + 5.159

0.9732

0.46499

3

Modified Pul’s method

Y = 1.019X − 17.83

0.9984

0.1749