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Table 1 List of experiment parameters. The basin mode period is defined as 4L/c(n) where L = 6110 km is the zonal distance of the Indian Ocean at the equator (from 45 to 100°E). The wind-coupling thickness is defined as \( \sqrt{h_{mix}{H}_{bottom}}/{\alpha}^{(n)} \), where hmix= 35 m and Hbottom= 5500 m

From: The vertical structure of annual wave energy flux in the tropical Indian Ocean

Baroclinic mode

1st

2nd

3rd

4th

5th

6th

Gravity wave speed (m/s)

2.63

1.57

0.956

0.706

0.557

0.467

Equatorial deformation radius (km)

339

262

205

176

156

143

Equatorial inertial period (day)

9.4

12.1

15.6

18.1

20.4

22.3

Basin mode period (year)

0.29

0.49

0.81

1.1

1.39

1.66

α(n) (non-dimensional)

0.39

0.41

0.27

0.29

0.23

0.22

Wind-coupling thickness (m)

1123

1062

1644

1505

1933

1955