Calculadora de Altura de Escala Atmosférica Gratis
Calcula la altura a la que la presión atmosférica disminuye por un factor e para cada planeta.
Scale Height
8,428.92 m
Scale Height vs Temperature
Fórmula
## Atmospheric Scale Height The scale height is the vertical distance over which atmospheric pressure decreases by a factor of *e* (about 2.718). ### Formula **H = k_B T / (m g)** - *k_B* = 1.381 x 10 to the minus 23 J/K (Boltzmann constant) - *T* = temperature in kelvin - *m* = mean molecular mass of the atmosphere (kg per molecule) - *g* = surface gravity For Earth, H is about 8.5 km.
Ejemplo Resuelto
Earth: T = 288 K, m = 4.81e-26 kg (N2/O2 mix), g = 9.81 m/s2.
- 01H = k_B T / (m g)
- 02H = 1.381e-23 * 288 / (4.81e-26 * 9.81)
- 03H = 3.977e-21 / 4.719e-25
- 04H = 8 428 m = 8.43 km
Preguntas Frecuentes
Why does a hotter atmosphere have a larger scale height?
Higher temperature means molecules move faster and can support a thicker atmospheric column against gravity.
How does scale height affect habitability?
A very small scale height means a thin atmosphere; a large one helps retain warmth. Scale height influences atmospheric escape rates too.
What is the scale height of Mars?
About 11.1 km, larger than Earth's despite lower temperature because Mars has weaker gravity and a lighter (CO2-dominated) atmosphere.