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Table 1
Symbols used in the text.
| ϕ | latitude (positive northward, |
| 0 at the equator) | |
| λ | longitude (positive eastward) |
| a | radius of sphere at lower boundary |
| z | distance from a |
| r | radius, r = a + z |
| t | time |
| ρ | density |
| P | pressure |
| T | temperature |
| p H | horizontal components of the momentum per unit |
| volume | |
| pϕ, pλ, pr | components of the momentum per unit volume |
| uϕ, uλ, ur | components of the velocity (u = p/ρ) |
| bϕ, bλ, br | components of the magnetic field |
| g | acceleration of gravity |
| Ω | angular velocity |
| R | gas constant |
| μ | mean molecular weight (g mol-1) |
| γ | adiabatic index |
|
specific heat at constant P |
| Q | rate of heating per unit mass |
| ν | kinematic viscosity |
| κ | thermal diffusivity |
| η | magnetic diffusivity |
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