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Table 2 Indicator metrics for models with different candidate predictors in the stepwise regression procedure (refer to “Modeling temperature-hydropower operations relationship” section for notations)

From: Realizing ecosystem-safe hydropower from dams

Model predictors

Correlation coeff. (R)

MAE (°C)

AIC

\(R_{\text{p}}\)

0.19

1.58

7624

\(R_{\text{p}} ,{\text{HP}}\)

0.45

1.41

7282

\(R_{\text{p}} ,{\text{HP}},R_{\text{t}}\)

0.47

1.41

7252

\(R_{\text{p}} ,{\text{HP}},R_{\text{t}} ,E,I\)

0.51

1.39

7179

\(R_{\text{p}} ,{\text{HP}},R_{\text{t}} ,T_{\text{a}}^{{\prime }}\)

0.58

1.37

6983

\(T_{\text{a}}^{{\prime }}\)

0.49

1.48

7204

\(R_{\text{p}} ,{\text{HP}},R_{\text{t}} ,E,I,T_{\text{a}}^{{\prime }}\)

0.59

1.36

6937

\(D_{i}\) (\(i\) = 1, 2,…12)

0.71

1.12

6476

\(R_{\text{p}} ,{\text{HP}},R_{\text{t}} ,E,I,T_{\text{a}}^{{\prime }} ,D_{i}\)

0.82

0.93

5737