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Measuring a Lagrangian drifter’s slip with an onboard ADCP

A perfect Lagrangian drifter should move with the same velocity as the water volume that it is following. Deviations from this ideal will result in a relative velocity between the drifter’s drogue and its surrounding water, commonly named “slip”. Estimating a drifter’s slip is difficult, especially...

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Detalles Bibliográficos
Autores principales: Herrera, J.L., González, J., Varela, R.A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6562283/
https://www.ncbi.nlm.nih.gov/pubmed/31211098
http://dx.doi.org/10.1016/j.mex.2019.05.032
Descripción
Sumario:A perfect Lagrangian drifter should move with the same velocity as the water volume that it is following. Deviations from this ideal will result in a relative velocity between the drifter’s drogue and its surrounding water, commonly named “slip”. Estimating a drifter’s slip is difficult, especially for custom and heavily instrumented drifters. We propose to use a Self-Contained Acoustic Doppler Current Profiler (SCADCP) attached to the drifter to: • Measure the drifter’s slip directly at the drogue depth. • Obtain complementary data of current at other depths.