TABLE 11.3 RESEARCH DIVES AND INSTRUMENTATION 



Instrument(s) 



Ref 



1966 4950 Bahama Is. 



1966 

 1967 



1967 



1971 



615 New England 

 1789 Blake Plateau 



1832 Blake Plateau 



Acoustics 



Physics 

 Physico-chemical 



Suspended 

 Particles 



800 Gulf of Maine Soil Mechanics 



ation 



Determine magnitude of fluc- 

 tuations in normal incidence 

 bottom reflectivity data 



Measure temperature micro- 

 structure at thermocline 



Measure small-scale tempera- 

 ture-salinity variations in 

 water column and within 

 sediment interstitial waters 



Determine the nature and 

 quantity of suspended mate- 

 rial in the water column 



Obtain measurements of sedi 

 ment bulk density and pene- 

 tration resistance 



3-ft long plastic cores inserted 33 

 by manipulator 



Two plankton sampling nets 18 

 on bow, manipulator actu- 

 ated 



Black and gray targets on 14 

 bow-mounted rack 



Variously configured concrete 14 

 clumps dropped from sur- 

 face and observed from 

 submersible 



LaCoste-Romberg Field Gravi- 14 

 meter 



EGSiG Sediment Probe/echo 14 

 sounder system with 12-kHz 

 transducer 



12-kHz transducer and a 19 

 calibrated receiving system 



Manipulator-held 5-ft long rod 18 

 with thermistors at each end 



Bottom probe to measure 20 

 sediment resistivity; ther- 

 mistor to measure water 

 temperature 



Plastic water samplers closed 20 

 by manipulators; TV-type 

 test pattern target mounted 

 on sample rack 



Nuclear (gamma) density 21 

 probe and static cone pene- 

 trometer 



Ben Franklin 1969 1800 Gulf Stream Acoustics To record ambient noise and Externally-mounted hydro- 7 



bottom reflected sound sig- phone; internal 7-channel 



nals from surface explosions tape recorder 



1969 1800 Gulf Stream DSL Studies To record and measure back- 3.5 and 12 kHz transducers, 7 



scatter from sound trans- tape recorder and strip chart 



mitted at varying frequen- recorder 

 clesand pulse lengths 



Deep Quest 



1970 4068 Pt. Loma, Calif. Soil Mechanics 



Compare sediment bearing Diversified Marine Corp. Mod- 

 strength measurements ob- el SA-1040 Sediment Shear 

 tained in situ vs. those at- Measurement Device. Shock- 

 tained from cores cord-driven, 5-ft long sedi- 



ment corers 



21 



558 



