UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) 



REPORT DOCUMENTATION PAGE 



READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



TP 81-4 



2. GOVT ACCESSION NO 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



BASE MAP ANALYSIS OF COASTAL CHANGES 

 USING AERIAL PHOTOGRAPHY 



5. TYPE OF REPORT ft PERIOD COVERED 



Technical Paper 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfsJ 



Craig H. Everts 

 Deborah C. Wilson 



8. CONTRACT OR GRANT NUMBER(s) 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center (CEREN-GE) 



Kingman Building, Fort Belvoir, Virginia 22060 



C31665 



11. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center 



Kingman Building, Fort Belvoir, Virginia 22060 



12. REPORT DATE 



November 1981 



13. NUMBER OF PAGES 

 14 



14. MONITORING AGENCY NAME ft AODRESSf// different from Controlling Office) 



15. SECURITY CLASS, (of this report) 



UNCLASSIFIED 



16. DISTRIBUTION STATEMENT (of this Report) 



Approved for public release, distribution unlimited. 



17. DISTRIBUTION STATEMENT (of the abstract entered In Block 20, If different from Report) 





DOCUMtNl 



\ COLLECTION 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Co 



ssary and identify by block i 



Aerial photography 

 Base map analysis 



Coastal features 

 Shoreline changes 



20. ABSTRACT (Continue ■ 



'ide if neceaaary and Identify by block i 



Time-sequence aerial photos often constitute the only source of data to determine past 

 shoreline changes. This report presents a method for obtaining shoreline change data from 

 base maps constructed from time-sequence sets of aerial photos, with the image of the aerial 

 photos superimposed at the constant scale of each base map. Shoreline position and other 

 features of interest, such as vegetation line, location and orientation of breaking wave 

 crests near the coast, etc., are then traced on each base map. A comparison of each base 

 map from the different sets of aerial photos will provide shoreline change data through time. 



DD //, 



1473 



EDITION OF t NOV 65 IS OBSOLETE 



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SECURITY CLASSIFICATION OF THIS PAGE (IThen Data Ent 



