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Other model :

• Elvira model : model 4 with river >2nd order
  

Log10(Wet width + 1) = 0.22734+ 0.20045 (log10 catchment area) + 0.25939 (log 10 Shreve index)

• Thornton model : W = 4.98 CA0.47
  

Models tested:

• Model 1 : width ~ a*catchment_area + b
• Model 2 : log(width) ~ a*log(catchment_area)+ b
• Model 3 : log(width) ~ a*log(catchment_area) + uga + b
• Model 4 : log(width) ~ a*log(catchment area) + b*log(shreve index) + c
• Model 5 : log(width) ~ a*log(catchment area) + b*log(shreve index) + uga + c

• Data extraction :
  • year > 1987 (RHP)
  • Period : april-october
  • complete sampling method
  • shreve >1