SUBJECT INDEX 



861 



Ships 



internal waves initiated, 731 



propellers' cavitation noise, 490, 492 



wake interrupts sonar beam, 480 



wave effects on motion, 683 ff 

 Shock wave, 522, 531 

 Shore approach waves, 678 ff 

 Sighting range under water, 454 

 Silverside fish, 550 

 Simrad echo-ranger, 549 

 Single scatterers, 513 ff 

 Siphonophores, 533 



SIPRE (Snow, Ice and Permafrost Re- 

 search Establishment), 831 

 Skagerrak, 791 

 Skin depth, 470 

 Slicks, 65, 724, 725 ff, 731 



internal wave relation, 731, 745 ff 

 Small-scale sea-air interactions, 43 

 Smaris sfnaris, 550 

 Smoke-trail photographs, 203 

 Snapping shrimp, 490, 542, 553, 560 

 Snell's law, 484 



Snodgrass wave recorder, 648 ff 

 Sofar stations, U.S. Navy, 486 

 Solubles, 305 

 Sonagraph, 524, 528, 547 

 Soniferous marine animals, 490, 541 

 Sonobuoy surveys, 551 

 Sound in the sea, 476 (see also Echo) 



absorption, 477, 479, 483 



amplifiers, 545 



detectors, 491, 492 



fluctuation, 488 



frequency analysis, 492 



internal waves, 740 ff 



listening instruments, 542 



propagation, 476, 492 

 shallow water, 482 



scattering, 487, 498 ff 



freqviency dependence, 525 ff 

 large groups, 519 ff 

 observations, 524 

 water boundaries, 537 



shadows, 485 



transducers, 495 



transmitters, 492 

 Sound production by marine organisms, 498 



analysis, 546 



eliciting, 561 



identification, 548, 549 



instrumentation, 542 



monitors, 545 



orientation function, 560 



Sound production by marine organisms — 



continued 



purposeful and adventitious, 550 



recorders, 545 



spectrum analysis, 547, 554 



suppressing, 561 

 Sound scattering by marine animals, 540 



identification, 507 ff 

 South Atlantic, 119, 770 

 Southern Hemisphere ocean basins, 124 

 Southwest Pacific Current, 123 

 Specific enthalpy, free energy, thermo- 

 dynamic potential, 7 

 Specific gravity anomaly, 8 

 Specific heat of sea- water, 12, 14 

 Specific humidity profiles, 69 

 Specific volume of sea-water, 8 

 Spectra: see under Sound and Underwater 



light and Waves 

 Spectral radiance, 452 

 Spectro-hydro nephelometer, 437 

 Spectrophotometer, 439 

 Sperm whale, 556 

 Spherical irradiance, 399, 408, 445 

 Spheroides maculatus, 550 

 Spheroides nephulus, 559 

 Spilling breaker, 681 

 Spirula, 533 

 Spray, evaporation, 71 

 Squall lines, 220 

 Squalus acaiUhias, 550 

 Square-law rectifier, 492 

 Squeals, 553, 556, 558 

 Squeteague, 558 

 Squids, 533 

 Squirrel-fish, 562 

 Stability length, 51 

 Stability parameter, 50, 52 

 Stabilizers for ships, 683 

 Stanton number, 49 

 Stationary waves, 701 ff 

 Station-keeping by marine animals, 560 

 Steadiness of lower trades, 197 

 Steady inertial circulation, 349 ff 

 Steady motion, 326 ff 

 Steady-state theory, 324 

 Stokes law, 300 

 Stokes-Navier laws, 33 

 Storm 



surges, 231, 594, 595, 796 ff 



tracking from microseisms, 709 ff 

 Stratification, 37 



thermal 50, 66 



