Answer the following questions after completing the problems in Part I. You will
ID: 114399 • Letter: A
Question
Answer the following questions after completing the problems in Part I. You will also need to refer to the chart of Saturation Mixing Ratios in Figure 13-1; interpolate from the chart as needed. As- sume that condensation begins at 100% relative humidity and that no evaporation takes place as
the parcel descends.
6. As the air rises up the windward side of the mountain:
(a) What is the capacity (saturation mixing ratio)
of the rising air at 2000 meters? g/kg
(b) What is the capacity of the air at 4000 meters? g/kg
7. 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
8. (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?
(c) What is the lifting condensation level of this parcel now? ___________ meters
Explanation / Answer
6)
a)The capacity (saturation mixing ratio) of the
rising air at 2000 meters(a) 7.6g/kg
b)The capacity of the air at 4000 meters (b) about 3.1g/kg.
7)The capacity of the air after it has descended back down to sea level on the lee side of the mountain
43g/kg
8)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
a) lower
b)Water vapor was lost during condensation on the windward side.
c)The lifting condensation level of this parcel now, after descending to sea level on the lee side of the mountain
4000 meters.
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