| The Moist Adiabatic Rate (MAR) for Different Temperatures and Pressures in °C/km and °F/1000 ft | ||||||||||
| Pressure [mb] | T [°C] | T [°F] | ||||||||
| -40 | -20 | 0 | 20 | 40 | -40 | -5 | 30 | 65 | 100 | |
| 1000 | 9.5 | 8.6 | 6.4 | 4.3 | 3.0 | 5.2 | 4.7 | 3.5 | 2.4 | 1.6 |
| 800 | 9.4 | 8.3 | 6.0 | 3.9 | 5.2 | 4.6 | 3.3 | 2.2 | ||
| 600 | 9.3 | 7.9 | 5.4 | 5.1 | 4.4 | 3.0 | ||||
| 400 | 9.1 | 7.3 | 5.0 | 4.0 | ||||||
| 200 | 8.6 | 4.7 | ||||||||
The average values we shall adopt for sample calculations are shown in a red font.
The moist adiabatic rate (MAR) is always less than the dry adiabatic rate (DAR), DAR » 10°C/km » 5.5°F/1000 ft.