INDEX 



225 



A-frame, 42 



Absorption of gases, 214 



Acoustic characteristics of oceano- 



graphic vessels, 125 



Acoustic Instrumentation, 101-122 

 Echo-ranging, 43, 62 



in measurement of ocean cur- 

 rents, 113, 120 

 Echo-sounding, 5, 39, 109, 197 

 biological sounds classified 

 by sound spectrograph tech- 

 niques, 114 



currents, acoustic methods of 

 studying, 30, 113, 120 

 cross correlator, 113 

 deep-scattering layer, 43, 

 109 



echo-sounder used as wave 

 meter, 121 

 EDO, 197. 200 

 IBM summary punch, 118 

 NMC, 197, 200 

 SOFAR, 9, 65, 80, 82, 111 

 sound propagation, predicted 

 conditions, 120 

 Telecorder, 118 

 Telereader, 118 

 Nature of acoustic data, 101 

 Passive listening techniques, 102 

 Bell Telephone Laboratory's 

 5E hydrophone, 103 

 biological sounds, identify- 

 ing, 106 



Brush Development Com- 

 pany's AX 58 series hydro- 

 phone, 103 

 hydrophone, 103 

 magnetic tape recorder, 63, 

 105 



phonograph recorder, 105 

 photographic recorder, 63, 

 105 



wire recorder, 105 

 sonagraph, 106 

 SUITCASE, 105 

 vibralyzer, 106 

 Sound transmission studies, 108 

 demolition block, Mark IV, 

 109 



Sound transmission studies -- 

 depth charge, 109 

 electrical sparks, 108 

 fuels, combustible under 

 water, 108 

 pentolite, 109 

 sirens, underwater, 108 

 Acoustic miethods of exploring 

 ocean floor, 197 



Admiralty Research Laboratories, 

 156 



AFFRAY, 200 



Aircraft, in sea-ice studies, 89 

 Air-Sea Boundary Processes, 

 210-221 



Energy transfer, forms of, 213 

 kinetic energy, 214 

 latent heat, 213 

 radiative energy transfer, 

 213 



sensible heat, 214 

 Humidity measurement in, 

 216-217 



dew-point hygrometer, 216 

 hygrograph , 217 

 refractometer, 217 

 thermocouple psychrometer, 

 216-217 



thermocouple without wick, 

 216 

 Methods of measurement (and 

 see property measured), 214 

 Radiation measurement in, 218 

 Eppley pyrheliometer (short 

 wave), 218 



long-wave sensitive radio- 

 meter, 218 

 Salinity measurement in, 217 

 conductometric instrument, 

 217 



oscillometric instrument, 

 217 

 Solar radiation, 210 

 Temiperature measurement in, 

 216 



thermistor bead, 216 

 thermistor rod, 216 

 thermocouple, 216 

 Velocity measurement in, 217 



