FREEPCET SULPHUR CO. BARATARIA BAY MODEL TBS1S 

 3 October 1949 PRELIMINARY TESTS OF EQUIPMENT 



TRIAL OF FRESH WATER (RAINFALL) DISCHARGE EXPERIMENT 



Model fined to tide datum vdth clear fresh ( f « 1,000) 



tap water, Brom Cresol Gsceen. solution added at 



tittle Lake equivalent box to trace fresh water drainage 



pattern. 



Tide machine set to run at 31.5 sec, semi-diurnal cycle. 



Fresh water discharge rate adjusted to 168 cc/min. 



Density difference zero, in this case. 



Cameras used for all model runs; (at a working distance 



16 feet over center of model except 3 sit 14 ft,), 



1, Graf lex Photorecord pneumatic camera, 35 nim double 

 frame, Bolsey f-3»2 Wollensak Anastigmat, Z|4 ram f .1,, 

 Bolsey shutter, autcmatic exposure inteirval 7»5 sec, 

 Exp. 1/10 sec,, f-9.5, 800 exp,/roll 



2, Paillard Bolex time-lapse motion-picture camera, 16 mm 

 single frame, Eastman Kodak f-2,7 Cine Anastigmat, 15 ram 

 f,l,, automatic expostire interval 1 second, 1/30 sec,, 

 f-6,3, 95 ft. rolls, 3800 exp./roU 



3, Leica C-III, 35 ram double frame hand camera, Wollensak 

 f-4,5 Velosti^iat f,i, 127 mm, manual exposure control, 

 exp. 1/8 sec,, f-11, viorking distance 14 feet over F,S, 

 Co, operating area 



Film Kodachrome Type A in 100 foot 35 mm spools for 



Graf lex (1) 



Kodachrome Type A in 95 foot 16 mm spools for Bolex 



(2) cut dovm from 200 foot spools 



Kodachrome Type A in 20 and 36 exposiH'e cassettes for 



Leica (3) 

 Illumination 12 No, 2 Photoflood lamps in reflectors operat- 

 ing at 115 volts, A,C, 



3 Oct.«49 

 1405 Brom Cresol Green added to equivalent box, cameras started, 

 no wind, clock 0^° 0^^ 0^ 



1419 Brom Cresol Green added to equivalent box 



1420 Cameras jammed 



1427 Cameras cleared 



1428 Cameras jammed, troxible in gravity trigger, secured run. • 

 Drained model, refilled with fresh tap water to rasl datum, 

 camera triggers repaired, test repeated 



1516 Cameras restarted 



I5I8 Brom Cresol Green added to equivalent box 



I55Q II II H II fl II II 



1600 " " " " " •♦ " 



1619 Reloaded 16 mm camera 



1626 16 mm take-up spool jammed for approximately 30 sec, before 



being cleared 

 1643 35 ram magazine emptied 



1658 Brom Cresol Green added to equivalenti box 



1736 Test secured. At 105 "days" fresh water discharge reached 



Lake Washington 



