Figure 2(). — Dynamic topography of the sea surface relative to the 1,000-dccihar 

 surface, from data collected 3-G June lOGO. Oceanographic station positions 

 are indicated and tlie station numbers givcji at turning points. 



wlici-cas (liii'iiii>- the i^ostseason occupal u)n ol' tlu> Boiiavista triangle, 

 figtirc 28 indicates that only such hergs as might cross the 49th |)arallel 

 eastward ol" about r){)°'M)' W., would follow tiie eastern branch. 



The first sui'vey, the southeiii pari of the second survey and the 

 fourth survey covered areas in the (irand Banivs i-egion from wliich 

 suflicient eai'lier data are available to permit t he (U'signation of itormal 

 tem|)erat ure-salinity |-elat ionships of the Labrador ( 'urrcnt and At- 

 lantic ( 'uri'ent water masses and the virtual water mass of mixed water 

 derived fi'om these two water masses. Figure 29 compares the T-S 

 relationshi|)s of the Labrador ( 'nricnt watci-, Atlantic ( 'urrent water 

 and mi.xed water found during the above menlioned snrveys in 19()0 

 with the mean relationships for the l.'!-year ])ei-io(l 194(S-60. 



Whereas the tempera! ure minimum in the l^abi'ador ( 'uri'ent charac- 

 teristically occurs at a depth of about 7") metei's, in 19()() it occurred 



46 



