Analysis on Coastline Changes and Driving Forces in Weihai Bay from 1973 to 2023
The spatiotemporal evolution of coastline is an important record of the development of marine e-conomy.Studying the spatiotemporal evolution of regional coastline and analyzing its driving forces is of great significance for the development and management of regional coastal zones.In this paper,by using multiple satellite images from 1973 to 2023,spatiotemporal changes of the coastline in Weihai Bay have been studied,and the driving forces of coastline changes have been analyzed.It is showed that the total length of the coastline in Weihai Bay has increased by 14.4km from 1973 to 2023.Among them,the artifi-cial coastline has increased 31.4km with the largest increasing amount,and the growth rate has reached its peak from 1990 to 2015.In the future development and utilization of the nearshore area of Weihai Bay,it is necessary to strictly maintain the current shoreline direction and protect the coastal pattern from dam-age.Based on the shoreline form,the land-based landscape should be planned,the coastal zone segmen-tation guidance should be strengthened,and the coastline should be intensively and efficiently utilized.It will make the precious shoreline resources of Weihai Bay as an important support for the development of"exquisite city"for Weihai city.