Age (days)

Equation

Radius (m)

k

β

D_eff (m²/s)

2

y = −0.3207x + 0.0001

0.0021

0.3207

03207

1.703

1.38E−10

3

y = −0.3033x + 0.00002

0.0030

0.3033

0.3033

1.718

6.09E−11

4

y = −0.2034x + 0.00001

0.0021

0.2034

0.2034

1.806

1.23E−11

5

y = −0.1395x + 0.00005

0.0025

0.1395

0.1395

1.865

8.98E−11

7

y = −0.1584x + 0.00009

0.0020

0.1584

0.1584

1.847

1.05E−10