*2.4. Google Earth Pro Historical Imagery*

An additional aspect of this study was representing changes to the coastline of North Captiva Island and observing the different erosional and accretion patterns using Google Earth Pro. Beginning in 1994 and using historical satellite imagery base maps from Google Earth Pro archives, it was possible to outline the coastline of North Captiva Island up until 2019. Using the path and polygon features, and designating each year with a different colored outline, it is possible to see the changes to the geomorphology of the study area, specifically the areas of sediment erosion and accretion throughout the years. As the bay side of the barrier islands are fringed with mangroves and/or marsh vegetation, shoreline change analysis using historical imageries has been limited to the Gulf side of the island only.
