Which one of the following statements about change in temperature with elevation is correct?
1
Adiabatic cooling of air due to increasing elevation leads to a drop of temperature by ~10°C for every 1,000 m in elevation, irrespective of water vapor or cloud formation.
2
Adiabatic cooling of air due to increasing elevation leads to a drop of temperature by ~10°C for every 1,000 m in elevation, as long as no water vapor or cloud formation occurs.
3
A vertical ascent of 1km from the Earth surface produces a temperature change roughly equivalent to that brought about by an increase in latitude of 1,000 km.
4
A vertical ascent of 600 m from the Earth surface produces a temperature change roughly equivalent to that brought about by an increase in latitude of 100 km.