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Table 3 Global statistics

From: Magnetic field stretching at the top of the shell of numerical dynamos

Model

St/Ad

\({\mathcal {P}}/{\mathcal {T}}\)

\(H_u\)

\({\text {corr}}(|B_r|,\delta _h^-)\)

\({\text {corr}}(|B_r|,\delta _h^+)\)

HN

LN

LR

1

0.56 ± 0.04

0.43 ± 0.03

0.84 ± 0.04

0.30 ± 0.05

−0.11 ± 0.02

40

1

10

2

0.48 ± 0.06

0.47 ± 0.03

0.78 ± 0.03

0.27 ± 0.04

−0.08 ± 0.03

48

5

19

3

0.62 ± 0.15

0.41 ± 0.01

0.84 ± 0.01

0.31 ± 0.05

−0.08 ± 0.02

28

0

5

4

0.93 ± 0.15

0.40 ± 0.03

0.88 ± 0.03

0.37 ± 0.09

−0.15 ± 0.04

29

4

3

5

0.76 ± 0.10

0.39 ± 0.02

0.87 ± 0.02

0.30 ± 0.05

−0.14 ± 0.03

25

2

1

6

0.68 ± 0.10

0.41 ± 0.03

0.85 ± 0.02

0.37 ± 0.02

−0.13 ± 0.02

31

3

6

7

0.95 ± 0.12

0.33 ± 0.01

0.87 ± 0.01

0.29 ± 0.04

−0.15 ± 0.02

21

3

3

8

0.71 ± 0.08

0.34 ± 0.02

0.84 ± 0.03

0.28 ± 0.05

−0.13 ± 0.01

29

0

2

9

0.65 ± 0.05

0.36 ± 0.01

0.80 ± 0.02

0.42 ± 0.03

−0.13 ± 0.01

26

8

6

  1. Dynamo models time-average and standard deviation values. St/Ad is stretching/advection RMS ratio, and \({\mathcal {P}}/{\mathcal {T}}\) is poloidal/toroidal flow RMS ratio. \(H_u\) is the helical flow correlation (13), \({\text {corr}}(|B_r|,\delta _h^-)\) and \({\text {corr}}(|B_r|,\delta _h^+)\) are the correlations between the absolute radial magnetic field and downwelling (14) and upwelling (15), respectively. Also, the number of analyzed magnetic flux patches of each type is given: high-latitude normal intense flux patches (HN), low-latitude normal intense flux patches (LN) and low-latitude reversed flux patches (LR)