OBSERVATION 

 SHIP 



Figure 2B. Measurement arrangement of ship and thermistor beads. 



beads, its range from the buoy was noted on the recording tape. This distance was 

 determined visually by reference to a string of surface range markers buoyed 10 

 yards apart seaward from the beads. Knowledge of the range aided in determining 

 the speed of the approaching slick. The exact time its leading edge arrived at the 

 beads and also the time the trailing edge passed the beads were marked on the 

 recording tape together with the temperature at six levels. 



Weather 



Wind speed and direction during the observation periods were recorded by the 

 Radio Meteorology Section at NEL, 6 miles away. 



