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Data from: Near-real-time processing and telemetry of turbulent dissipation rate estimates by Autonomous Underwater Gliders

Shapiro, Justin1; Kassis, Patricia1; St. Laurent, Lou1; Merrifield, Sophia2

Published Sep 25, 2026 on Dryad. https://doi.org/10.5061/dryad.cjsxksnpm

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Sep 25, 2026 version files 63.88 MB
Sep 25, 2026 version files 63.88 MB

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Abstract

Autonomous underwater gliders (AUGs) are an established platform for conducting direct microstructure measurements of turbulent kinetic energy (TKE) dissipation rate ε. This technique requires measuring the velocity shear (∂u/∂z) at a high rate (∼512 Hz) which generates raw data that are orders of magnitude greater in size than autonomous platforms can wirelessly transfer to shore while deployed. We demonstrate the technical readiness of a novel system based on data collected by two vehicles during approximately 3 months of sea trials southwest of Iceland and northwest of Guam, which were conducted for the Office of Naval Research’s Near-Inertial Shear and Kinetic Energy in the North Atlantic Experiment (NISKINE) and Island Arc Turbulent Eddy Regional Exchange (ARCTERX) Departmental Research Initiatives.