1.Beach profile deformation along the east coast of the Island is more radical where the retreat of ordinary berm crest may come up to 25 m, the above MSL profile erosion may reach 30 m 3/m, the under MSL profile accretion caused by mass transport of waves may attain 17 m 3/m.
2.Then, through radius determination, outspread of the profile, values calculation and so on, many characteristic values of fabric drape (drape coefficient, number of crest, crest amplitude uniformity, crest angle uniformity, crest amplitude maximum, crest angle maximum and so on) can be measured.
