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Land-Based Sensors Reveal Coastal Flooding Is Far More Frequent than Previously Thought

  • Researchers from North Carolina State University revealed in 2025 that coastal flooding occurs far more frequently in eastern North Carolina than tide gauges indicate.
  • They used land-based sensors across three towns because traditional tide gauge data omit flooding caused by groundwater and drainage issues, causing major underestimates.
  • These floods cause property damage, lost time, higher insurance costs, and health and financial insecurity, with underserved and rural communities disproportionately affected.
  • Sensor data showed Sea Level flooded on 128 days, much higher than tide gauge-based estimates, supporting the claim that "thresholds drastically underestimated the number of floods."
  • The findings imply that better flood detection can improve infrastructure planning and emergency response strategies to mitigate increasing flood risks driven by climate change.
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Phys.org broke the news in United Kingdom on Monday, June 2, 2025.
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