Table 1 System parameter ranges and best fit.

From: Delayed signatures of underground nuclear explosions

Parameter

Unit

Minimum

Maximum

Mean

Optimized

Fracture aperture

[m]

1.10 × 10−4

8.95 × 10−3

(9.98 × 10−4)

1.48 × 10−3

Fracture frequency

[–]

1.284

9.460

3.943

3.996

Fracture permeability

[m2]

9.26 × 10−11

7.52 × 10−9

(1.37 × 10−9)

6.96 × 10−10

Bulk permeability

[m2]

3.06 × 10−12

6.47 × 10−12

(4.46 × 10−12)

4.13 × 10−12

  1. Numbers in parentheses indicate the mean values on log10 scale.
  2. Fracture and matrix porosities are assumed to be 0.99 and 0.1.
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