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The geomorpho-climatic attributes considered for the analyses included mean annual precipitation, basin average slope (BASL), basin average elevation (BAE), drainage area (DA), drainage perimeter (DP), maximum altitude of the basin (MAB), elongation ratio (ER) (the ratio of the diameter of a circle of the same area as the basin to the maximum basin length), form factor (FF) (the ratio of basin area to square of basin length), and relief ratio (ReR) (the ratio between basin relief and basin length) as explanatory predictors. Similarly, the hydrological attributes included in this study constituted mean annual runoff (MAR) and runoff ratio (RR). The detailed information regarding the geomorpho-climatic and hydrological attributes is shown in Table 1.

Table 1

Statistical summary of the selected explanatory variables

 DADPBAEBASLFFERReRMAB
(km2)(km)(m)(%)(m)
Minimum 351.34 166.76 55.31 10.86 0.07 0.31 0.01 810.00 
1st quartile 1,502.56 227.39 282.98 33.62 0.12 0.38 0.01 1,144.75 
Median 1,600.88 258.54 417.30 39.59 0.18 0.48 0.02 1,237.50 
Mean 1,611.38 252.33 395.66 36.66 0.31 0.58 0.02 1,282.95 
3rd quartile 2,017.55 286.67 563.69 45.02 0.54 0.83 0.02 1,567.75 
Maximum 2,483.82 348.71 749.32 57.88 0.78 1.00 0.03 1,585.00 
 DADPBAEBASLFFERReRMAB
(km2)(km)(m)(%)(m)
Minimum 351.34 166.76 55.31 10.86 0.07 0.31 0.01 810.00 
1st quartile 1,502.56 227.39 282.98 33.62 0.12 0.38 0.01 1,144.75 
Median 1,600.88 258.54 417.30 39.59 0.18 0.48 0.02 1,237.50 
Mean 1,611.38 252.33 395.66 36.66 0.31 0.58 0.02 1,282.95 
3rd quartile 2,017.55 286.67 563.69 45.02 0.54 0.83 0.02 1,567.75 
Maximum 2,483.82 348.71 749.32 57.88 0.78 1.00 0.03 1,585.00 

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