4 H.WALTER 



of length for io°C and 20 mm of rainfall respectively. Using this scale, io°C 

 equal to 20 mm, Gaussen estabUshed for the Mediterranean region a 

 strictly arid period prevailing when the rainfall curve goes belov/ the 

 temperature curve and a humid period when the rainfall curve rises above 

 the temperature curve (Fig. i, cHmatic diagram of Ankara). I appHed this 

 method to the cHmate of Ankara and the diagram showed the actual dry 

 period beginning with June and ending in the second half of October. 

 When I checked the method for tropical summer rain regions (South 





o^ ANKARA (8&5m) ll,7°3iil 



Fig. I 



_G0BABIS(1445m)i 

 [30-521 



19,A° 362 



STUTTGART (267m) 10,0° 673 

 [ 50 - 40 1 



-2.1 

 -25,0 



Fig. 2 



Fig. 3 



ODESSA (43m) 

 111-24) 



-21 



K 



9,A 368 



Fig. 4 



