34.85 



3.0 



S /eo 



34.90 34.95 



35.00 



2.5 



o 



2.0 



r.5 



Figure 45. — Potential tempeniture-salinity rrlatioii^hip for the deep water of 

 the Labrador Sea. Ellipses show standard dexiation of postwar years from 

 the 13-year mean 1948-60. 



casting' tochnicjiics. A secondary obj('cti\'(> was to investigate Eknian's 

 enipifical ('(|uati()ii for tli<> velocity of a wind drixcii current. 



To accomplisli tliesc ohjcct i\-cs, the follow ilia' measurements were 

 made: ^^'illd velocity by means of aiilomalic and hand held wind 

 measui'ing devices; shi])"s position hy means of loran; surface current 

 by means of a geomagnetic elect rokin('togra|)h and surface and sid)- 

 surface currents hy means of plotting the diifl of ihi'ee parachute 

 drogues. Tli(> observalion period lasted cS;^ hours during which time 

 ()6 loi-an fixes were obtained, Ki geomagnetic elect rokinetograph sin-- 

 face current determinations wcic made, hourly w ind velocity measure- 

 ments taken, and half houi'lx rachir I'anges of iceberg and drogue 

 reflectoi-s r(>coi(jed. 



72 



