Distributed acoustic sensing (DAS) to understand landfast ice evolution and breakup
Abstract
The proposed field experiment will use a novel application of distributed acoustic sensing (DAS)to collect measurements of surface waves, sea ice strain, and ice thickness in the landfast icezone of Utqiagvik, Alaska. The project will complete the first ever on-sea ice deployment offiber optic cable interrogated by DAS to demonstrate the utility of this emerging technology forArctic coastal observing and monitoring. Observations will cover two spring breakout seasons tocapture variability in the role of sea ice thickness in surface wave attenuation and ice evolution.Measurements of surface waves, sea ice motion and strain, thickness, and temperature usingmore traditional methods from complementary planned experiments at Utqiagvik 2024-2026 willbe used for calibration, validation, and contextualization of the data analysis planned from DASobservations. Resulting DAS data products of surface waves in sea ice, sea ice thickness, and seaice evolution in high spatial resolution will be used to improve understanding of conditionsleading to sea ice breakout and to calibrate coupled wave models.Approved for Public Release
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 09, 2024
- Source ID
- N000142412681
Entities
People
- Madison Smith
Organizations
- Office of Naval Research
- United States Navy
- Woods Hole Oceanographic Institution