UNCLASSIFIED 



Securitv Classification 



DOCUMENT CONTROL DATA -R&D 



I Security cl3S si (ication of title, body of nbs^tract and indexing annotation must be entered when the overalJ report is classified) 



ORIGINATING ACTIVITY (Corporate author) 



Ocean Science Department 



U.S. Naval Oceanographic Office 



Washington, D.C. 20373 



20. REPORT SECURITY CLASSIFICATION 



UNCLASSIFIED 



2fa. GROUP 



N/A 



3. REPORT TITLE 



Synthetic Bathymetric Profiling System (SYNBAPS) 



4 DESCRIPTIVE NOTES (Type a I report and inclusive dates) 



Technical Report 



5- AUTHOR IS) (First name, middle initial, last name) 



Roger J. Van Wyckhouse 



6 REPOR T D A TE 



1973 



May 



7a. TOTAL NO- OF PAGES 



IM 



7b. NO. OF REFS 



_JL5 



ia. CONTRACT OR GRANT NO- 



b. PROJ EC T NO. 



9a. ORIGINATOR'S REPORT NUM6ER(S) 



TR-233 



9fc. OTHER REPORT NO{5) (Any Other numbers that may be assigned 

 this report) 



NONE 



10. DISTRIBUTION STATEMENT 



Approved for public release; distribution unlimited. 



M. SUPPLEMENTARY NOTES 



12. SPONSORING MILITARY ACTIVITY 



U.S. Naval Oceanographic Office 

 Washington, D.C. and Office of/20373 

 Naval Research/ Washington, D.C. 



3 ABSTRACT 



20375 



The Synthetic Bathymetric Profiling System (SYNBAPS) consists of 10 

 FORTRAN IV computer programs, a random-access storage device, and an 

 initial bathymetric data base of over 3 million data points. SYNBAPS 

 is designed for rapid generation of random omnidirectional bathymetric 

 profiles in digital form along great-circle paths. The initial data 

 base will cover most of the Northern Hemisphere and will be extended 

 to other regions as suitable bathymetric contour charts become 

 available . 



Data derived from the bathymetric contour charts are s 

 a gridded data surface by the application of a cubic s 

 The gridded data are stored in a random-access storage 

 degree-square areas. An accessing program, initiated 

 request, extracts the 5-degree-square blocks of data f 

 The interpolation of the final profile is accomplished 

 cubic spline algorithm along a great-circle path and i 

 the depth values from the 5-degree squares falling on 

 status program checks the content and condition of the 

 storage device. 



tructured into 

 pline algorithm. 



device by 5- 

 by a user's 

 or processing. 



by orienting a 

 nterpolating 

 the path. A 



random-access 



SYNBAPS will provide bathymetric profiles at about one-fifth the cost 

 and one-hundredth the time of present semiautomated methods. 



DD 



FORM 



1 NO V 65 



1473 'P'^^^ ' 



UNCLASSIFIED 



S/N 0101-807-680 1 



Securitv Classification 



