Table 1 Multiple linear regression analysis with de-trended D24 as the predictand and parameters such as oceanic precipitation, river discharge, and Kerala rainfall as predictors for the period 2001–2019.
Predictor | Rank | Regression coefficient | Standard error | t | p >|t| |
|---|---|---|---|---|---|
Oceanic precipitation | 1 | 0.682 | 0.183 | 3.733 | 0.002* |
River discharge | 2 | 0.663 | 0.187 | 3.547 | 0.003* |
Kerala rainfall | 3 | 0.626 | 0.195 | 3.214 | 0.005* |