Weathering degree

b₀

μ

β

K_n

P₀

r

r₀

α

Strong weathering

0.005

0.3

0

20

0.23

2.0

0.025

1.65

Medium weathering

0.0035

0.25

0

50

0.54

1.5

0.025

1.65

Light weathering

0.0015

0.20

0

100

1.10

1.1

0.025

1.65