SCIENTIFIC RESULTS 



157 



S5 5-4- Si 



So drg 



Characteristic Types of circulation Around the Grand Bank 



FiGiHK 10(1. — Tlip two upper maps show tlio Labrador current hussiiis the Grand Bank 

 slopes. The type on the left often prevails in earl.v season, while the one on the right 

 is associated with a stronger cold current and a relatively weak (julf Stream. The 

 lower left-hand sketch reveals a Labrador current developed to maximum ; a con- 

 dition often found in mid ice season. The last map shows the primary circulation 

 which prevails over the (Irand Bank. The various .systems of circulation as shown 

 above have been obtained from many ice patrol surveys in accordance with the 

 Bjerknes's method of hydrodynamics. Iceberg tracks have also Iieen found to agree 

 with the stream lines of the currents. 



