D2.3 Report into DAS observations in relation to fibre technology used

Key Points

• The report aims to explain key concepts in fibre optic sensing, particularly focusing on Distributed Acoustic Sensing (DAS).
• Overview of DAS technology and its applications
• Presentation of recordings from natural phenomena including whale calls, earthquakes, and ocean gravity waves
• Discussion of coupling and signal effects during observations.
• Highlighted diverse examples of recordings made with DAS technology
• Discussed the implications of coupling effects on detection accuracy
• Analyzed the significance of signal effects in varied natural scenarios.