Table 7 The Correlation between gauge station lake levels and MNDWI index extracted remotely sensed water areas (2005–2011)

Pearson correlation

(Parametric)

LWL (mm)

Correlation coefficient

1

0.980^a

Sig. (2 tailed)

0.003

Area (ha)

Correlation coefficient

0.980^a

1

Sig. (2 tailed)

0.003

Kendall’s tau

(Nonparametric)

LWL (mm)

Correlation coefficient

1

0.983^a

Sig. (2 tailed)

0.000

Area (ha)

Correlation coefficient

0.983^a

1

Sig. (2 tailed)

0.000