FREEPORT SULPHUR CO. BARATARIA BAT MODEL TESTS 

 la October 1949 TRAVEL TIME TESTS ON EBB TII3E FROM POINT VI 



An attempt was mad© to discharge Carter's midnight black ink for 1 model 

 "hour" (2,5 sec.) from Point VI on Humble Canal at the begiiuiing of slack 

 ebb. It was hoped that such a dye in clear water would cohere enough to 

 give some measure of the earliest arrival of bleed water in northern Bay 

 Rouquille, The ink soluticxi was not sufficiently coherent to represent 

 parcel motion but only that of a certain finite dilution, hence these 

 esqjeriments reveal arrivals at a dilution that is very great but unknown. 

 Discharge pulses liberated from Point VI at slack ebb during maximum sym- 

 metrical tides of tropic sequence, 



T 



VI Ai 



1032 hr exp. 1? Leica l/B f-U 



exp, lB-36 at 3 "hour" intervals thereafter, i.e., every 

 7.5 sec. mean solar time 



T 



VI Ag 



1045 hr oxp. 1 Leica 1/8 f-H 



exp. a-20 at 3 "hour" intervals thereafter 



T 

 VI A 



1107 2 hr exp. 1 Leica I/8 f-11 



exp, 2-20 at 3 "hour" intervals thereafter; some faint 



c(j.or reached wsst end of Lake Grand Ecaille on surface 



(tension?) 



T 



VI A 



1115 ^ hr exp. 1 Leica I/8 f-U 



exp. a-20 at 3 "hour" intervals thereafter; some surface 

 film again reached west end of Lake Grand Ecaille 



