Variation of the coastline in the village of Cedeño, and cartography of threat before swells and rise in sea level

Abstract

The village of Cedeño is highly vulnerable to the onslaught of hydrometeorological phenomena that periodically occur on its beaches (Swells), to which must be added the effects produced by climate change. All of the above will cause irreversible damage such as retreat of the coastline, flooding due to the increase of the ocean, loss of wetlands, an intrusion of saline water, and displacement of people. The negative impacts on the territorial system and therefore on the quality of life of its inhabitants will be great. The general objective was to develop a baseline on the variability patterns of the Cedeño Aldea coast (erosion/accretion rates), as well as the cartography of threats to natural phenomena (flood tidal maps/inundation floods) of the sea), which serves as a support to propose appropriate planning and land management policies.

The methodology used was based on geospatial analysis, using tools of geographic information systems, remote sensing, citizen participation and statistical tools. The results showed an erosive behavior on the beaches of the village of Cedeño, as well as a large area vulnerable to flooding before the swells and scenarios of sea level rise.