During the aerial survey the air temperature was 39°F. and the wind was N\V 10 knots. 

 From the pattern shown in Table 2 we would expect a difference under winter conditions of 

 2° to 4°F. 



Bathj-thermograph records indicate the water column was relatively isothermal to 

 150 feet, a condition under which subsurface temperatures even deeper than the nominal 

 bucket depth of one to three feet might be predicted from aerial IRT surveys (Figure 6). 



REFERENCE 



Clark, John R. and John L. Frank. Infrared Measurements of Sea Surface Temperatures. 

 Undersea Technology . October, 1963 



100 - 



200 - 



300 - 



^ 400 - 



J 500 - 



a. 

 ui 

 o 600 - 



700 - 



•00 - 



900 - 



1000 



40»30 



1 1 



40* 20' 40* lO' 



LATITUDE 



— r 



40*00' 



Figure 6, Temperature profile (°F.) along comparative air/sea transect 

 (71° 07' meridian) from Albatross IV B. T. casts 



-142- 



