5 Interpretation of Results - 

 A Descriptive Model of 

 Coastal Morphodynamics 



This chapter provides a summary of the study findings in the form of a 

 description of the historic, present, and possible future coastal processes and 

 morphologic evolution for the study area shoreline and lake bed. Two periods 

 are considered for the historic changes spanning the 1945/6, 1964/5, and 1991 

 bathymetry surveys. The present conditions are represented by the changes 

 between 1991 and 1995. The study area shore may be subdivided into seven 

 sectors as follows (see Figure 34): 



a. A section of coast north of the harbor which appears to be uninfluenced 

 by the presence of the harbor (i.e., this corresponds to Panel 1 of the 

 lake bed surface comparison analysis). 



b. The updrift fillet beach located immediately north of the harbor jetties 

 (i.e.. Panel 2). 



c. The downdrift fillet beach extending about 400 m south of the harbor 

 (i.e.. Panel 3). 



d. The feeder beach area extending from Line R8 to the Waterworks 

 revetment (i.e.. Panel 4). 



e. A section with uninterrupted shore protection in the form of revetment 

 and seawaU from the Waterworics revetment to Line R22 (i.e.. Panels 5 

 and 6). 



/. The section of unprotected or partially protected shore extending from 

 Line R22 to south of Shoreham; (i.e.. Panel 7). 



g. A section at the southerly limit of the study area which, historically, 

 does not appear to have been influenced by the harbor jetties (i.e.. 

 Panel 8). 



Chapter 5 Interpretation of Results - A Descriptive Model of Coastal Morphodynamics 



77 



