Assume that a parcel of air is forced to rise up and over a 6000-foot-high mountain (shown below)

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Assume that a parcel of air is forced to rise up and over a 6000-foot-high mountain (shown below). The initial temperature of the parcel at sea level is 76.5°F, and the lifting condensation level (LCL) of the parcel is 3000 feet. The DAR is 5.5°F/1000′ and the SAR is 3.3°F/1000′. Assume that con- densation begins at 100% relative humidity and that no evaporation takes place as the parcel de- scends. Indicate calculated temperatures to one decimal place.

Answer the following questions . Interpolate from the chart if needed. Assume that condensation begins at 100% relative humidity and that no evaporation takes place as the parcel descends.

1.       (a)      On the windward side of the mountain, should the relative
humidity of the parcel change as it rises from 3000′ to 6000’?   ______________

           (b)       Why?

2.     As the air rises up the windward side of the mountain:

           (a)       What is the capacity (saturation mixing ratio) of the
rising air at 3000 feet?                                                                   ______ g/kg

           (b)       What is the capacity of the air at 6000 feet?                                  __________ g/kg

3.     What is the capacity of the air after it has descended back down to
sea level on the lee side of the mountain?                                             __________ g/kg

4.       (a)      Assuming that no water vapor is added as the parcel descends
down the lee side of the mountain to sea level, is the water vapor
content (the mixing ratio) of the parcel higher or lower than
before it began to rise over the mountain?                                    ______

           (b)       Why?