Extra Credit #7: Tucson Temperature Sounding; Due Apr. 14, 2000

This exercise will examine the behavior of an air parcel in Tucson using
data as measured by balloons released by the Weather Service Office
at the Tucson Airport.  This is done twice a day at various stations all
over the world.  In the U.S. there are about 100 stations and Tucson
happens to be one of them.  Your assignment, should you choose to
accept it, will be to plot the both the temperature and the dew point
as various levels in the atmosphere above Tucson
on Apr. 9, at 5 P.M.  
Data for 
     Apr. 9, at 5 P.M.


Then answer the following questions: 1) At what altitude would you expect
condensation to occur in a parcel of air that is lifted from the surface?
2) Would you expect this parcel to rise upon its own to this level
or would it need to be lifted by some other means?