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PHYSICS 137                     QUIZ #8                         November 2, 2005

 

               1.  The outside temperature just before class began this morning was   61°F  .
  •                2.  This morning's dominant cloud type is   cirrostratus or altostratus  .
  •  
  • ______   3.  For this time of day and year, the current temperature is (a) considerably (more
                        than 6°F) below normal, (b) slightly (3°F to 6°F) below normal, (c) about (within
                        3°F of) normal, (d) slightly (3°F to 6°F) above normal,     (e) considerably (more than
                         6°F) above normal.
  •  
  • ______   4.  The lowest cloud bases this morning are nearest an elevation of (a) 5 000', (b)
                        8 000', (c) 11 000',     (d) 18 000', (e) 30 000'.
                       
  • ______   5.  Understanding and accurately predicting weather requires knowing where and to
                        what extent upper-level divergence is occurring.  However directly measuring upper-
                        level divergence is almost  impossible.  Fortunately upper-level divergence is strongly
                        correlated with an observable phenomenon.  That observable phenomenon is (a) the
                        daily surface temperature range, (b) the dominant cloud type between 2 000 and
                        4 000 meters above the surface, (c) surface barometric pressure,     (d) vorticity.
    •