Köppen-Heft der Annalen der Hydrographie usw. 1926, 
4N 
Temperature of the Sea and Air. 
Dre a 
2 
Fr 
MdL 
N / +3 5 
m. 
NEN 
m 
af 
Kl 
ale 
& 
30] 
MAR Ay 
A” 
__ 
SC 
X 
v— 
Cr 
“it 
a 
A 
x 
Yo 
; SE 
\ 
A 
x 
„ 
\ 
PS 
mn 
ou 
I 
EM 
DONE | 
a 
( 
won 5 
ZU) 
fr 
! 
| a Mt h 
z ı'63 
Figure 1. 
Seasonal variation of the difference of temperature of the sea and air over 
the North Atlantic 20°—50° N in tercentesimal degrees (°C). Areas over which 
the temperature of the sea is greater than that of the air are stippled.