SEA SURFACE 



u s^^^^^^^V•,v. — > — ^^sju^tff*^ 







..•„•:-■' "^ ..■'■- V 21° 



"■Vw 





<* V >S 





*18° 

 "17° 



./*■ .*'•■ 





"^■.;' JV.A /..*V V '*^ a V-'' : '<V' 16C 



W >v ^V" ''V ~' *',* ^'' ' '^<' ■"'•'-'■V'.' .'^A »'.l,'v ico 



■■•■ V V* ,> '- c ' 



V . *•''' :■ 14° 





.-'■-V 



IT V» •' V' 



1 ~100 FT 



1 ^ A , - 12 ° 



V* 



% 



11° 



AM. 



N-l 



Figure ?2fA). Normal thermal sfrucfure (Secr/on N-7, fig. 70J. 



22 



