pvlib.atmosphere.alt2pres#

pvlib.atmosphere.alt2pres(altitude)[source]#

Determine site pressure from altitude.

Parameters

altitude (numeric) – Altitude above sea level. [m]

Returns

pressure (numeric) – Atmospheric pressure. [Pa]

Notes

The following assumptions are made

Parameter

Value

Base pressure

101325 Pa

Temperature at zero altitude

288.15 K

Gravitational acceleration

9.80665 m/s^2

Lapse rate

-6.5E-3 K/m

Gas constant for air

287.053 J/(kg K)

Relative Humidity

0%

References

1

“A Quick Derivation relating altitude to air pressure” from Portland State Aerospace Society, Version 1.03, 12/22/2004.