AVERAGE No STRUCTURE 



115 



Figure 4.19. Diurnal, seasonal, and vertical variation 0/ No/or Brownsville, Tex. (BRO). 



of continents. By contrast, the island-like station of Cape Hatteras 

 (HAT), figure 4.23, reflects both the characteristic strong seasonal range 

 of a lee coast station that is dominated by dry, cold continental air in the 

 winter and warm, moist maritime air in the summer and the small diurnal 

 ranges for all months of the year of a maritime modified climate. 



The data for Denver, Colo. (DEN), figure 4.24, strongly reflect the 

 influence of the climatic controls of altitude and continentality. The level 

 of A''o is intermediate to that of Oakland and Washington. The vertical 



