AN ACOUSTIC MODEL 



LANGUAGE 

 COMPUTER 



FORTRAN 

 IBM 7074 



PRESENTS A SOLUTION FOR THE RAYLEIGH REFLECTION COEFFICIENT WITH A 

 FOUR LAYER MODEL. OS NO. 20118. AUTHOR — M.E. MYERS. 



COMPUTER DEPARTMENT, CODE 0831 

 NAVAL OCEANOGRAPHIC OFFICE 

 SUITLAND> MD. 20390 



CRITICAL ACOUSTIC RATIO 



LANGUAGE 

 COMPUTER 



FORTRAN 

 IBM 7074 



DETERMINATION OF CRITICAL RATIO OF TR I bONOMET R I C FUNCTIONS OF ACOUSTIC 

 ANGLES INVOLVED IN CONNECTION WITH THE CONVERGENCE INTERVAL FOR A 3- 

 LAYER MODEL OF THE OCEAN. OS NO. 53483. AUTHOR — C.M. WINGER. 



OCEANOGRAPHIC PREDICTION DIV. 

 NAVAL OCEANOGRAPHIC OFFICE 

 SUITLAND> MD. 20390 



CODE 3400 



RAY PATH LANGUAGE - FORTRAN 



COMPUTER - IBM 7074 

 (COPY ON FILE AT NODC) 



COMPUTES RANGES AND TRAVEL TIMES FOR SOUND RAi-S. OS NO. 53810. AUTHOR 

 L.W. CISNEY. 



EXPLORATORY OCEANOGRAPHY DIV., CODE 7200 

 NAVAL OCEANOGRAPHIC OFFICE 

 SUITLAND, MD. 20390 



BOTTOM REFLECTION ANALYSIS LANGUAGE - FORTRAN 



COMPUTER - IBM 7074 

 (COPY ON FILE AT NODC) 



DETERMINES ENERGY lEVEl OF SOUND SOURCES AT CERTAIN DISCRETE FREQUEN- 

 CIES BY MEANS OF HARMONIC ANALYSIS. OS NO. 53806. AUTHOR-- i- . W . CIS- 

 NEY. 



EXPLORATORY OCEANOGRAPHY DIV., CODE 7200 

 NAVAL OCEANOGRAPHIC OFFICE 

 SUITLAND, MD. 20390 



CONVERGENCE ZONE RANGE 



LANGUAGE - FORTRAN 

 COMPUTER - IbM 7074 



(COPY ON FILE AT NODC) 



COMPUTES RANGES TO THE FIRST CONVERGENCE ZONE. THE WIDTH OF THE 

 RESWEPT AND INSONIFIED ZONES AND THE RELIABLE ACOUSTIC PATH RANGE 

 ARE ALSO COMPUTED. IN ADDITION, LAYER DEPTH, CHANNEL DEPTH, OPTIMUM 

 DEPTH, BOTTOM VELOCITY, AND DEPTH EXCESS ARE EXTRACTED AND LISTED 

 IN THE OUTPUT. INPUT EITHER CARD OR TAPE. OS NO. 53334. (RESTRICTED) 

 AUTHOR — R, BUTTERWORTH. 



OCEANOGRAPHIC ANALYSIS DIV., CODE 3300 

 NAVAL OCEANOGRAPHIC OFFICE 

 SUITLAND, MD. 20390 



LIGHT AND SOUND INSTRUCTION D LANGUAGE - FORTRAN 



COMPUTER - IBM 7074 

 (COPY ON FILE AT NODC) 



COMPUTES THE CONVERGENCE ZONE PARAMETERS USING THE V(X) METHOiJ (EQUA- 

 TIONS OF DONALD COlE), BY ONE-DEGREE QUADRANGLE, BY MONTH AND BY SEA- 

 SON. AUTHOR — M.C. CHURCH. 



PAGE 098 



