42 



Further inspection of table 1 shows considerable variabiHty in the 

 mean temperature of the Labrador Current. A much greater con- 

 stancy is shown in the minimum temperature. Comparison of the 

 values for the season of 1936 with those of the 3-year average shows 

 that at section T the mean temperature was colder than usual during 

 the months of April and May and slightly warmer than usual in June. 

 As stated above, this section is regarded as most nearly indicative of 

 unmodified Labrador Current conditions of the three sections con- 



FiGUEE 29.— Variations in volume of flow of the Labrador Current in the Grand 

 ice seasons of 1934, 1935, and 1936. 



— AVERAGE- 



inks sector during the 



sidered. Taking all sections, the mean temperature was only 0.26° C. 

 warmer for the entire season than average. However, the minimum 

 temperature was warmer than average for each section throughout 

 the season, and taldng all occupations of all sections for 1936 the 

 minimum temperature was 0.52° C. warmer than average. 



As has been shown by Smith, Soule, and Mosby in United States 

 Coast Guard Bulletin No. 19, Part 2, the Labrador Current is com- 

 posed of Baffin Land Current and West Greenland Current in the pro- 

 portions of about 2 to 3, the Bafiin Land component supplying the 

 inshore, minimum temperature band of the Labrador Current. In 

 1935, both in March and in August, the West Greenland Current 

 rounding Cape Farewell, Greenland, was flowing at about double its 



