Table 2. — Location and characteristics of eddies transected in the Gulf of Mexico by SOOP vessels in 1974. 



Appen- 







Station 









dix 





Station 



coordinates 





Depth 



Diameter 



figure 



Ship 



no. 



(lat., long.) 



Date 



(m) 



nm (km) 



1 



Delta Sud 



12 



26°56'N, 91°33'W 



8-9 Mar. 



>500 



170 (315) 







16 



25°08'N, 89°21'W 





>500 



170 (315) 







17 



24°56'N, 89°05'W 





>500 



120 (222) 







20 



23°40'N, 87°32'W 





>500 



120 (222) 



2 



Delta Norte 



1 



27°52'N, 92°51'W 



21-23 Mar. 



>600 



200 (370) 







5 



25°09'N, 89°47'W 





>600 



200 (370) 







6 



24°50'N, 89°28'W 





>700 



175 (324) 







11 



22°55"N, 87°05'W 





>700 



175 (324) 



3 



Delta Sud 



11 



27°0nM, 91°51'W 



15-17 Apr. 



>600 



95 (176) 







16 



26°00'N, 90°29'W 





>600 



95 (176) 







16 



26°00'N, 90°29'W 





>600 



290 (537) 







28 



22°46'N, 86°30'W 





>600 



290 (537) 



4 



Delta Sud 



40 



24°29'N, 86°51'W 



21 May 



600 



245 (453) 







49 



28°09'N, 88°48'W 





800 



245 (453) 



5 



Delta Sud 



4 



27°28TM, 92°16'W 



27-29 May 



>600 



120 (222) 







9 



26°10'N, 90°48'W 





>600 



120 (222) 







9 



26°10'N, 90°48'W 





>600 



300 (556) 







22 



23°10'N, 86°55'W 





>600 



300 (556) 



6 



Delta Sud 



9 



25°41"N, 87°08"W 



28-29 June 



>500 



175 (324) 







17 



28°08'N, 88°52'W 





>500 



175 (324) 



7 



Delta Sud 



4 



27°17'N, 91°44'W 



6-7 July 



>600 



335 (621) 







14 



23°30'N, 87°18'W 





>600 



335 (621) 



9 



Delta Norte 



8 



27°48'N, 92°44'W 



20-21 July 



>600 



140 (259) 







13 



26°17'N, 90°54'W 





>600 



140 (259) 







13 



26°17'N, 90°54'W 





>700 



195 (361) 







22 



24°17'N, 88°17'W 





>700 



195 (361) 



10 



Mayaguez 



1 



29°01"N, 88°44'W 



17-18 Aug. 



>600 



165 (306) 







7 



27°22'N, 86°41'W 





>.600 



165 (306) 



11 



Mayaguez 



19 



24°24'N, 82°39'W 



25-26 Aug. 



>700 



240 (445) 







24 



26°54'N, 85°53'W 





>700 



240 (445) 



12 



Mayaguez 



1 



28°44"N, 88°26'W 



28-29 Aug. 



>600 



140 (259) 







6 



27°19'N, 86°27'W 





>600 



140 (259) 







6 



27°19TSI, 86°27'W 





>200 



150 (278) 







9 



25°37TM, 84-22'W 





>200 



150 (278) 



13 



Delta Sud 



10 



25°37"N, 87-33'W 



2 Nov. 



>600 



'75 (139) 







13 



26°42'N, 88°06'W 





>600 



'75 (139) 



14 



Delta Sud 



21 



27°36'N, 87°36'W 



6 Nov. 



>600 



160 (296) 







26 



26°07'N, 85°21'W 





>600 



160 (296) 



'Only about one-half of this eddy was transected. 



Table 3. 



-Low salinity (< 34.5°/ o0 ) coastal water encountered by SOOP vessels in 

 the northern Gulf of Mexico in 1974. 











Water depth 





Appen- 









at 



Offshore 



dix 







Station 



seaward edge 



extent 



figure 



Ship 



Date 



no. 



(m) 



nm (km) 



1 



Delta Sud 



8-9 Mar. 



2-4 



32 



50 ( 93) 



3 



Delta Sud 



15-17 Apr. 



1-4 



38 



70 (130) 



4 



Delta Sud 



21 May 



49-51 



124 



70 (130) 



6 



Delta Sud 



28-29 June 



16-18 



>500 



90 (167) 



7 



Delta Sud 



6-7 July 



1-3 



144 



195 (361) 



9 



Delta Norte 



20-21 July 



1-11 



>800 



230 (426) 



10 



Mayaguez 



17-18 Aug. 



1-3 



>800 



85 (157) 



11 



Mayaguez 



25-26 Aug. 



25-27 



>800 



210 (389) 



12 



Mayaguez 



28-29 Aug. 



1-6 



>800 



200 (371) 



rent itself. The offshore extent of the low salinity surface 

 water shown in Appendix Figures 4, 7, and 9 apparently 

 was blocked by the presence of one particular anticy- 

 clonic eddy. The southwestward migration of this eddy 



(as discussed above) removed the block and allowed the 

 plume to extend farther offshore. In some instances the 

 low salinity surface waters were entrained into the eddy 

 structure (Appendix Figs. 6, 9, 10, 12). In most cases 



