NO. 4 TEMPERATURE VARIATIONS IN THE NORTH ATLANTIC I45 



In figure 63, curves I to III, we show the yearly variations in the 

 surface temperature at Petersen's two most easterly stations I to 

 II (at 12° and 18° west longitude) and at Liepe's three most 

 northerly stations which are furthest east in the Atlantic along the 

 coasts of England, France, and Portugal, (see fig. i, stations I and 

 II, pi. 15, stations I, II, and III). The curve for Liepe's station I 

 is continued by means of the curve of the most northerly of the 

 fields of the Central Bureau at 36° north (see curve Illb). These 

 curves show an unmistakable similarity to the curves IV to VI for 

 the air temperature in Eurasia, in the north temperate zone and 



Figure 63. Yearly anomalies of the surface temperature (I to III) and 

 the air temperature (IV to VII). S: direct sun spot curve, scale on the left. 

 R: the number of prominences observed at the Observatory of the CoUegio 

 Romano. Scale at the left where 100 equals lo.o. C: daily number of 

 prominences observed at Catania. 



in west and middle Europe. We have also given a temperature 

 curve VII for southwest Siberia and this shows a surprising agree- 

 ment with the curves for Liepe's most northerly stations. 



On figure 58 we give a three year smoothed curve (V) for the 

 temperature in southwest Siberia. As may be seen, there is a good 

 agreement between this curve and the curves I to IV, particularly 

 the two curves I and III for Liepe's stations I to III and V to VI. 



That so good agreement is found between the temperature varia- 

 tions in Siberia and the surface temperature in the fields of the ocean 

 which experience the influence of the Azores pressure maximum is 



