Fig.8 
o 
e 
40 
20 
= 
= 
Precipitation - potential evapotranspiration 
  
diagram (Ep) * of Northern Germany - Hamburg 
19 Mar.73 
< 
SN 
  
——< 29 Jun:76 
  
  
    
14 Nov.‘72 
Ne 
ANN 
a 
  
  
Ep 
mm 
110 
T 
90 
70 
60 
40 
u 
30 
  
a 
  
  
dry month (deficit) 
wet month ( surplus) 
NL 
* Ep calculated according 
SOIL DEPT. NOV '77 
       
ITC 
Jan. Feb. Mar. Apr. May. June 
July "Aug “Sept. Oct .! Nov. Dec. 
ES precipitation in mm 
evapotranspiration in mm 
to Thornthwaite