CONTENTS 



Page 



Introduction 1 



Outline of System Operation 2 



Source Material 11 



System Description 11 



A. Structuring Programs 11 



B. Accessing Programs 23 



C. Status Program 32 



D. CDC 3800 System Subroutines and Functions 35 



Profile Output 35 



Furtl:er Modifications , Additions, and Other Applications 40 



Summary and Conclusions 41 



References 42 



Bibliography 44 



Glossary of Selected Terms 45 



List of Acronyms Used in Computer Programs 55 



Appendix A - Preparation of Charts for Digitization A-1 



Appendix B - FORTRAN Programs for Structuring SYNBAPS B-1 



Appendix C - FORTRAN Programs for Accessing SYNBAPS C-1 



ILLUSTRATIONS 



1. Synthetic Bathymetric Profiling System Diagram 3 



2 . SYNBAPS Logical Data Grid 5 



3 . Marsden Square Chart 6 



4 . Marsden Square Quadrants as MSQLOC Areas 7 



5 . Example of MSQLOC Area 8 



6. Example of Synthetic Track Orientation 9 



7 . SYNBAPS Structuring Programs Flow Diagram 13 



8 . Output Deck Structure from SYNTRACK 14 



9. SYNCHEX Control Card for Track Plotting of MSQLOC 



Area , 16 



10. SYNGRID Control Cards for Gridding Track Data 18 



11. SYNC0N2R Control Card for Contour Plotting 20 



12 , SYNBAPS Accessing Programs Flow Diagram 24 



13 . SYNBAPSl Profile Request Control Card 25 



14 . Accessing Programs Detail Flow Diagram 26 



15. Quadrants for Subroutine BATHY 2 8 



16. Profile Extraction from Gridded Data Base 30 



17. SYNPLOT Control Card 31 



18. Difference Between Rhumb Line and Great Circle Path 



Within a Five-Degree Square 33 



19. SYNSTAT Control Cards.." 34 



20. Index of Sample Profiles 36 



21. Profile Passing Through Two MSQLOC Areas 37 



22. Cubic Spline vs Manual Profiles 38 



23. Mirror Image Profiles Along Same Path - Different 

 Directions 39 



