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dc.contributor.authorCauchy, Pierre
dc.contributor.authorHeywood, Karen J.
dc.contributor.authorMerchant, Nathan D.
dc.contributor.authorQueste, Bastien Y.
dc.contributor.authorTestor, Pierre
dc.coverage.spatialMediterranean Seaen_US
dc.identifier.citationCauchy, P., Heywood, K. J., Merchant, N. D., Queste, B. Y. and Testor, P. (2018) Wind Speed Measured from Underwater Gliders Using Passive Acoustics. Journal of Atmospheric and Oceanic Technology, 35, pp.2305–2321. DOI:
dc.description.abstractWind speed measurements are needed to understand ocean–atmosphere coupling processes and their effects on climate. Satellite observations provide sufficient spatial and temporal coverage but are lacking adequate calibration, while ship- and mooring-based observations are spatially limited and have technical shortcomings. However, wind-generated underwater noise can be used to measure wind speed, a method known as Weather Observations Through Ambient Noise (WOTAN). Here, we adapt the WOTAN technique for application to ocean gliders, enabling calibrated wind speed measurements to be combined with contemporaneous oceanographic profiles over extended spatial and temporal scales. We demonstrate the methodology in three glider surveys in the Mediterranean Sea during winter 2012/13. Wind speeds ranged from 2 to 21.5 m s21, and the relationship to underwater ambient noise measured from the glider was quantified. A two-regime linear model is proposed, which validates a previous linear model for light winds (below 12 m s21) and identifies a regime change in the noise generation mechanism at higher wind speeds. This proposed model improves on previous work by extending the validated model range to strong winds of up to 21.5 m s21. The acquisition, data processing, and calibration steps are described. Future applications for glider-based wind speed observations and the development of a global wind speed estimation model are discussed.en_US
dc.rightsAttribution 4.0 International*
dc.subject.otherSea surface wind speeden_US
dc.subject.otherUnderwater glidersen_US
dc.subject.otherUnderwater noiseen_US
dc.subject.otherWind generated underwater noiseen_US
dc.titleWind Speed Measured from Underwater Gliders Using Passive Acoustics.en_US
dc.typeJournal Contributionen_US
dc.subject.dmProcessesData processingen_US
dc.bibliographicCitation.titleJournal of Atmospheric and Oceanic Technologyen_US
dc.description.maturitylevelPilot or Demonstrateden_US
dc.description.adoptionNovel (no adoption outside originators)en_US
dc.description.sensorsPassive acoustic monitoring (PAM)en_US
dc.description.sensorsAcousonde B003A-HF dataloggeren_US
dc.description.methodologyTypeMethoden_US Cauchy

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Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International