Coastal zones are crucial to the global economy, supporting over 40% of the world's population, serving as hubs for major urban centres, industrial infrastructure, and vital ecosystems, and sustaining key maritime trade routes. These regions are facing accelerating challenges due to both natural forces and human activities, including coastal erosion, cyclones, storms, and saltwater intrusion, which threaten communities, ecosystems, and economic stability.
CET offers critical insights into erosion and deposition patterns at the end of each monsoon season. This information enables government authorities to conduct rapid assessments of coastal erosion and its impact on various land-use types, facilitating informed decision-making on the level of investment required for effective coastal protection measures.

The CET is a valuable resource for stakeholders involved in coastal and land management. Currently, agencies such as the Directorate of Water Resources and Improvement of River systems (DWIR), Myanmar use this tool to undertake preliminary assessments of coastal morphological changes before initiating detailed post-monsoon surveys of areas requiring shoreline stabilization.
The long-term (30 years) historical dataset on coastal erosion and deposition helps identify hotspots, enabling targeted planning for mitigation and adaptation efforts. This dataset can also be enriched with additional layers, such as census data, infrastructure information, and socioeconomic factors, providing a comprehensive view to support decision-making.
The tool also supports local government departments in identifying new land areas formed through deposition or lost through erosion, to allocated for community livelihood purposes and to keep records. Additionally, this information is useful for disaster management authorities to identify impacted communities and develop preliminary compensation estimates for affected populations.

Coastal Erosion Tool is funded through SEI under the Tools development fund.