Shoreline and offshore tide monitoring based on existing subsea cable and intensity-based φ-OTDR

Key Points

• Shoreline tide monitoring shows great potential for large-scale offshore observation using innovative technology.
• Distributed offshore tide observations were successfully conducted using existing subsea cable and φ-OTDR technology.
• The method enhances coastal management practices by providing reliable data on tide patterns.
• Ongoing advancements in technology could further improve offshore monitoring capabilities and outcomes.