Designation

Apparent diffusion coefficient (10−12 m2/s)

30 days

60 days

90 days

0N

0.81

± 0.08

1.31

± 0.11

1.63

± 0.15

50N

1.48

± 0.37

2.20

± 0.43

2.16

± 0.13

100N

3.91

± 0.44

3.68

± 0.38

3.84

± 0.25