Embry Riddle Aeronautical University World Wide WEAX201 Exercise 4 NAME 1 What kind of precipitation would you expect to see if the precipitation forms up in the clouds in temperatures well below zero and never falls through any layers warmer than the freezing temp 0C or 32F 2 What kind of precipitation would you expect if the precipitation forms as snow at high altitudes then falls through a layer of warmer abovefreezing air and melts completely into rain then encounters a shallow layer of cold below freezing air just above the surface 3 What kind of precipitation forms in intense thunderstorms where strong updrafts carry rain drops up to very high altitude where they freeze into solid ice then fall back to lower warmer levels in the cloud where liquid water collects on the ball of ice and the ball is then carried aloft to colder air again by another updraft This process is sometimes repeated many times before the ball of ice grows too heavy to be carried aloft by any more updrafts and it falls to the Earth 4 Explain the relationship between pressure gradient and wind What is the difference between an isobar and a height contour 5 What are two types of instruments that measure atmospheric pressure 6 What is hydrostatic equilibrium as explained on page 102 of the text 7 If we consider a surface low and high pressure system use the forces to describe the direction the winds are circulating V is the original direction of the wind Draw the forces onto the diagrams below and use them to DISCUSS why the winds circulate the way the do V L H V What would happen if the pressure gradient force equals the coriolis force PGF CF b
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