COMPUTER DEPARTMENT, CODE 083 

 NAVAL OCEANOGRAPHIC OFFICE 

 SUITLANDj MD. 20390 



RAY TRACING LANGUAGE - FORTRAN II 



COMPUTER - IBM 70^ 

 (COPY ON FILE AT NODC) 



COMPUTES HORIZONTAL RANGE, TRAVEL TIME, AND SPREADING LOSS THROUGH A 

 MEDIUM CONSISTING OF LAYERS OF CONSTANT VELOCITY GRADIENT {THE v(X) 

 METHOD OF DONALD COLE). A PRINTED OUTPUT CONTAINS LAYERED INFORMA- 

 TION. OPTION TO WRITE A PLOTTER TAPE FOR USE ON THE EAI 3^^0 DIGITAL 

 PLOTTER. REF. USL TECH. MEMORANDUM NO. 907-78-66 (APRIL, 1966) 



PAULINE ONYX 



NAVY UNDERWATER SOUND LABORATORY, BLDG. 80 



FORT TRUMBULL, NEW LONDON, CONN. 06320 



BOTTOM REFLECTIVITY LANGUAGE - FORTRAN II 



COMPUTER - IBM 704 

 (COPY ON FILE AT NODC) 



USL PROGRAM NO. 0289. COMPUTES THREE ACOUSTIC REFLECTION COEFFICIENTS 

 AS A FUNCTION OF INCIDENT ANGLE AND FREQUENCY. THE PROGRAM ACCOUNTS 

 FOR DIFFERENCE IN PATH LENGTH, DEPTH OF SOURCE AND RECEIVERS, WATER, 

 BOTTOM SLOPE, VELOCITY GRADIENT AND RECORDED TRAVEL TIME. REF. USL 

 TECH. MEMORANDUMS NOS. 913-4-65 AND 907-144-65. THE LATTER REPORT 

 ALSO SERVES TO DOCUMENT A SUPPLEMENTAL COMPUTER PROGRAM (USL No. 0427, 

 IN FORTRAN) FOR COMPUTING MEANS AND STANDARD DEVIATIONS OF THE THREE 

 REFLECTION COEFFICIENTS. 



R. WHITTAKER 



NAVY UNDERWATER SOUND LABORATORY, BLDG. 80 



FORT TRUMBULL, NEW LONDON, CONN. 06320 



TWO DIMENSIONAL RAY TRACE LANGUAGE - SCRAp, MAP 



COMPUTER - CDC 1604 AND 

 CDC 3200 



DESCRIBES THE PATH OF SOUND EMITTED FROM A POINT SOURCE AS IT PROGRES- 

 SES THROUGH THE OCEAN IN ONE HORIZONTAL DIRECTION, TAKING INTO CONSID- 

 ERATION BOTH HORIZONTAL AND VERTICAL VARIATION IN THE SOUND VELOCITY 

 OF THE OCEAN. ONE PATH IS TRACED FOR EACH SPECIFIED INITIAL ANGLE 

 FROM THE HORIZONTAL. BEHAVIOR OF RAY PATH IS CONTROLLED BY SOuND VEL- 

 OCITY GRADIENTS- CORRECTION FOR EARTH CURVATURE IS ADDED. OUTpUT IS A 

 PRINTED LIST AND ALSO IN BINARY FORMAT SUITABLE FOR ADAPTATION TO A 

 PLOTTER. DIRECT INQUIRIES FOR INFORMATION TO — 



COMMANDING OFFICER 

 FLEET NUMERICAL WEATHER CENTRAL 

 NAVAL POSTGRADUATE SCHOOL 

 MONTEREY, CALIFORNIA 93940 



THESIS3 (SONOBUOY FIXING ERROR) LANGUAGE - FORTRAN 



COMPUTER - (NOT GIVEN) 



CALCULATES THE EFFECTS OF HORIZONTAL VELOCITY GRADIENTS IN SEA WATER 

 WHEN OBTAINING A FIX ON A TARGET BY TWO PASSIVE DIRECTIONAL SENSORS. 



Thesis by james w. pigman (may i966). 



NAVAL POSTGRADUATE SCHOOL 

 MONTEREY, CALIFORNIA 93940 



NEAR-FIELD ARRAY TESTING LANGUAGE - FORTRAN 



COMPUTER - PDP-8 



PROGRAM INVESTIGATES THEORETICALLY THE EFFECT OF IRREGULARITIES IN THE 



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