Question

Study the table below of a station B in a month of July and answer the following questions.

NE	E	S	N	SW	SE	W	NW	CALM
3	1	2	3	7	1	6	4	4

1. Use a suitable cartographic technique to represent the data. 
2.  
   1. State advantages of using the method in (a) above to represent the data. 
   2. State the disadvantages of using the method.

Answer 1

1.  
   
2.  
   1.  
      • Easy to construct
      • It gives a good visual impression at a glance.
      • Easy to read and interpret.
      • It shows clearly the direction of wind and number of days wind blew in that direction.
   2.  
      • Does not show wind speed or pattern of flow.
      • It is difficult to extract numerical values for it involves use of scale.
      • Does not show exact time/day when wind blew from particular direction.