s; -« E 



6^01/1 



E 



TO-58-2 

 PART 3 



i^-Ppgat/l. 



Figure ll.--Vertical distributions of properties on cruise TO-58-2, parts 2 and 3, along section A-A (see fig. 8); 

 depth scale in m. 



dicated for the northern end of the 0.95 contour 

 is based on comparison of dynamic height 

 anomalies at over 200 decibars for station 19 

 and adjacent stations, because observations 

 were made to only 200 m. at station 19. The 19 

 available GEK observations are not presented 

 in this chart because it is thought that the GEK 

 cable may have been plugged in backwards, 

 thereby reversing polarity. The general direc- 

 tion of surface current indicated by these ob- 

 servations is northeast, which is inconsistent 

 with the dynamic topography, but if the polarity 

 had been reversed the direction would be 

 southwest and in fair agreement with the 

 dynamic topography. Moreover, comparisons 

 between desired and attained positions of 

 stations on this section of the cruise suggest 

 that the ship encountered a surface current 

 set to the west or southwest. 



Figure 16B shows the familiar cool belt 

 of surface water between meridians 95° and 

 96°, and an east-west arrangement of con- 

 tours in the north of the area which is con- 

 sistent with data for that area in figure 16A. 

 Figure 16C shows the most saline water in 

 the coolest area. Figure 16D shows the highest 

 phosphate values in the ridge area, but much 

 higher values than on previous cruises in 

 the western part of the Gulf generally (cf, 

 figs. 4E and lOE). 



Chlorophyll a and productivity values were 

 in general about as high as those in November 

 (cruise TO-58-2) but higher than those in 

 May and June (cruise TO-58-1), as shown 

 in figures 5A and 5B. The range of zooplankton 

 standing crop was about the same as that 

 on TO-58-2 but the main concentration was 



16 



