... VNUJournalofScience,EarthSciences23(2007)244‐252244 Studying sho reline change by using LIT PACK mathematical model (case study in Cat Hai Island, Hai Pho ng City, Vietnam) NguyenNgocThach1,*,NguyenNgocTruc1,LuongPhuongHau21CollegeofScience,VNU2HanoiUniversityofCivilEngineeringReceived05April2007;received in revisedform10September2007Abstract. ... beaches. In thispaper, the authors apply the model for studying shoreline change in Cat Hai Island, Hai Phong City. Cat Hai is a famous island with dense population working ... 249anadvantage,stablelinesystem.2.5. Calculate changes of shoreline after havingprote cte dcons truc tions by usin g LITPACK model After arranging shoreline protectedconstructionssystem,modeling study shoreline is...