Work

Estimating sound pressure levels from distributed acoustic sensing data using 20 Hz fin whale calls

Year: 2025

Type: article

Abstract: Distributed acoustic sensing (DAS) is a promising technology for underwater acoustics, but its instrumental response is still being investigated to enable quantitative measurements. We use fin whale 20 Hz calls to estimate the conversion between DAS-recorded strain and acoustic pressure. Our method is tested across three deployments on varied seafloor telecommunication cables and ocean basins. Results show that after accounting for well-established DAS response factors, a unique value for water compressibility provides a good estimate for the conversion. This work represents a significant step forward in characterizing DAS for marine monitoring and highlights potential limitations related to instrument noise floor.

Source: JASA Express Letters

DOI: 10.1121/10.0036351

Authors: Léa Bouffaut, Quentin Goestchel, Robin André Rørstadbotnen, Anthony Sladen, Arthur Hartog, Holger Klinck

Institutions: Cornell University, Cornell Lab of Ornithology, University of Washington, Norwegian University of Science and Technology, Centre National de la Recherche Scientifique, Université Côte d'Azur, Observatoire de la Côte d’Azur, Géoazur, Institut de Recherche pour le Développement

Language: English

Topic: Seismic Waves and Analysis

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4409293144

FWCI: 9.634

Cites: 20

Cited by: 15

Related to: 10