profile lines in this sector (i.e., Lines R8 to Rll) over the period from 1991 to 

 1993 is given in Table 10. This table indicates that each beach nourishment is 

 followed by rapid profile adjustment (PA) or moderate to high erosion (ME to 

 HE). 



Table 10 . 



St. Joseph Harbor, Lake Michigan, Summary of Profile Data (Beach Fills, Profile 



Change, and Wave Energy) 



Fia 



profile influeneed by beach fill 



LE 



kM erosion 



LD 



kwdepostion 





firet profile sufv«v 



ME 



medium erosion 



MD 



medium deposition 



NC 



no change between profiles 



HE 



high erosion 



HD 



high deposrtion 



PA 



pfT3file adjustment (net cfiange is zero) 











Sumy 

 Date 



Rg 



R9 RSA 



RIO 



RIOA 



Proni€ 

 Rll 



R12 



RU 



RI7 



R20 



R22 



R23 



Wivc 

 Entrsy 



W.U Above 

 aCLOtS) 



Volume 



Fin 



Unflh 

 FlU 



(■) 



34>l«y-91 



H:-'^'r-; i 







46 



S22 









0.6 







1*Jin-91 















ME - . - - 



- 



0.7 







14.Aug'91 















NC 





mHD 







XHD 



PA 













0.7 







27-^19-91 















HE 





ME 







ME 



NC 









ME 





0.55 







3IMii9«1 













ta«).91 



1^^^^^^^^^^^^^^^^^^^^^ 







74 



822 





NC 



FILL PA 





Fia 

















323 



0.35 







ISOcl-91 















FILL ----- . 





0.3 







15-0*91 















HO 



ME xHE 



FILL 



LO 



mHE 



NC 











■ 



3269 



03 







190K-91 















NC 

 



HE 



L£ 



PA 



NC 



LE 











• 



12176 



0.5 







IS.Mv-92 















ME 



L£ X>HE 



MD 



NC 



FILL 



NC 



nHO 









IHD 



,1762 



0.55 







U-M«»-92 













22-M<y-92 



i' 1 







31 



SZ2 





LE 



Ra FILL 



PA 



UD 



HE 



MD 



UE 









^^ 



794 



0.55 







1»>luv92 



















PA 





NC 













- 





0.6 







1&0UV9: 

















XXXHE XXSHE 







NC 



WOHO 





xxHD 



NC 



lOcHO 



^E 



S18 



0.5 







ZmiH-92 

















IHE mHE 



xnHE 



PA LD 



WHE 



OHE 



MD 



PA 



XXHE 





PA 



6124 



07 







t-Urt-33 













la-jiD-gs 



1 1 







2 



807 





PA 



LE 



LE 





NC 





MO 



MD 



xHD 



WXHE 



NC 



110 



0.S5 







n-Ajg-gs 













7-S«()-93 



^S^ 







1527 



30 



Note: Wave energy (m^s) is H^ * T (wave height squared x wave period) provides indication of relative wave energy. 



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



85 



