The difference is between dry and wet adiabatic lapse rates. The dry adiabatic lapse rate is the rate at which dry air cools as it rises (or warms as it descends): a loss of 5.4 degrees per thousand ...

When the pressure of dry air changes, its temperature also changes (by “dry air,” the meaning is no clouds or fog). Changes in altitude equate to changes in air pressure. When a parcel of air rises, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The difference is between dry and wet ...