Why is the parcel now warmer than it was at sea level on the windward side (what is the source of the heat energy)?
Assume that a parcel of air is forced to rise up and over a 4000-meter-high mountain (as shown). The initial temperature of the parcel at sea level is 30°C, and the lifting condensation level (LCL) of the parcel is 2000 meters. The DAR is 10°C/1000 m and the SAR is 6°C/1000 m. Assume that condensation begins at 100% relative humidity and that no evaporation takes place as the parcel descends.
What will be an ideal response?
The release of latent heat during condensation reduced the rate of cooling above the LCL on the windward side.
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