The adiabatic process uses specific numbers, or rates, to decrease a parcel’s temperature and dew point…

The adiabatic process uses specific numbers, or rates, to
decrease a parcel’s temperature and dew point temperature. Those
rates are:
– Unsaturated air will decrease by 10 deg C for every 1
kilometer (km) of lift. This is called the dry adiabatic lapse
rate.
– Saturated air will decrease by 6 deg C for every km of lift.
This is called the moist adiabatic lapse rate.
– The parcel’s dew point temperature will decrease by 2 deg C
for every km of lift in unsaturated air and will decrease at the
moist adiabatic rate in saturated air. NOTE: The dew point
temperature at a particular level is never greater than the
temperature at that level.
The actual change in temperature measured in the atmosphere by a
radiosonde is called the environmental lapse rate.
1. Assess, under given conditions, if a lifted parcel of
air can reach a level where instability numerically occurs – What
are the missing calculations?
Environmental Lapse Rate and Parcel Worksheet Instructions: For parts A, B, and C, an entry is required at each “?”. For part D, your response should be about 2-3 sentences. A. Using the lapse rates provided complete all items. Environment temp (deg C) Parcel temp (deg C) dew point (deg ) height (km) -9 dew point (deg C) -15 -5 5 14 21 20 ? ? ? ? 28 ? ? ? ? 20 0 28 B. What is the condensation level (if any)? level (km) temp (deg C) C. Where does the parcel temperature exceed the environmental temperature (if any)? level (km) temp (deg C) ?