ﺗﻐﻴﺮ ﺧﻂ ﺳﺎﺣﻞ اﻟﻌﻤﺮاﻧﻴﺔ ﺧﻠﻴﺞ اﻟﻌﻘﺒﺔ وﺗﺄﺛﻴﺮﻩ ﻋﻠﻰ اﻟﻤﺮاﻛﺰ دراﺳﺔ ﻓﻲ اﻟﺠﻴﻮﻣﻮرﻓﻮﻟﻮﺟﻴﺎ اﻟﺘﻄﺒﻴﻘﻴﺔ The Changes of the Gulf Aqaba coastline and its impact on urban centers – A study in Applied Geomorphology