FIGURE 9. Vertical temperature structure, type S-3. These traces represent some of the variations found in and near the ice pack in the Ross Sea. 

 The irregular thermal structure may be related to alternate warming when open water exists and cooling as melting ice floes cover the area. 



IB! 



III 



■3 



m 



III 



ill 



lit 



III 



ill 







ii 





III 



ii 





III 



ii 



sii 



III 



ii 



ill 



III 



ii 



IB 



III 



i 



|S 



III 



i 





III 



i 



■1 



III 



i 





III 



i 



|5 



III 



i 



' 



III 



ii 



IB 



HI 



ii 





III 



ii 



IIBI 



mi 



« 



I I Hill 



I llll 



. HUH 



III llll 



I llll 



I llll 



I I llll 

 llll 



III 



llll 



IIIIIIH I 



IIHIIII I 



llllllll 



IIIIIIH 



lllllll 



lllllll 



III 



111 



HIHHHHI 

 llllllllllll 



HUH 



huh 



iiiii 



FIGURE 10. Vertical temperature structure, type S-3. Thermal structures showing slight positive gradients in the surface layers occurred in the 

 areas marked on the map. The traces given show the various types observed. These types of structures were observed most frequently in or near 

 the ice floes or close to the ice barriers. Such positive gradients are related to relatively low-salinity melt water on the surface. 



16 



