APPENDIX E: NOTATION 



This appendix contains separate lists for mathematical notation and the 

 names of variables in the computer program that appear in the input START file 

 and elsewhere. Length units are given as meters (m) , but "feet" (ft) may be 

 substituted if American customary units are selected in the modeling. 



Mathematical Notation 



a x Longshore sand transport parameter (contains K : ; see below) 



a 2 Longshore sand transport parameter (contains K 2 ; see below) 



A Bottom profile shape parameter, m 1/3 



b Subscript denoting condition at wave breaking 



B' Composite of variables in the double-sweep algorithm (sec/m 2 ) 



C Wave phase speed, m/sec 



C Wave group speed, m/sec 



C gb Wave group speed at breaking, m/sec 



D Water depth, m 



d 50 Median sand grain size, mm 



Dt, Water depth at wave breaking, m 



D B Average berm height, m 



D c Depth of closure, m 



D G Water depth at groin tip, m 



D LT Depth of active longshore transport, m 



D LTo Maximum depth of longshore transport, m 



E L Double sweep recurrence coefficient 



F Total fraction of sand passing over, around, or through a shore- 

 connected structure (groin or jetty) 



F i Double sweep recurrence coefficient, m 2 / sec 



g Acceleration due to gravity, m/sec 2 



H Wave height, m 



H 2 Breaking wave height at arbitrary point "Point 2," m 



H Deepwater wave height , m 



H b Breaking wave height , m 



El 



