Velocity despiking

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Overview

The most used techniques are the phase-space thresholding techniques [1] applied to the detrended velocities. Other techniques currently being investigated by the subgroup are those used in atmospheric turbulence studies [2], in particular median filter despiking technique [3].


Example velocities measured by an acoustic-Doppler velocimeters.

Notes

  1. ↑ D. G. Goring and V.I. Nikora. 2002. Despiking Acoustic Doppler Velocimeter Data. Journal of Hydraulic Engineering. doi:10.1061/􏰠ASCE􏰐0733-9429􏰠2002􏰐128:1􏰠117􏰐
  2. ↑ D. Starkenburg, S. Metzger, G.J. Fochesatto, J.G Alfieri, R. Gens and A. Prakash and J. Cristobal. 2016. Assessment of Despiking Methods for Turbulence Data in Micrometeorology. J. Atmos. Oceanic Technoly. doi:10.1175/JTECH-D-15-0154.1􏰐
  3. ↑ F.V. Brock. 1986. A nonlinear filter to remove impulse noise from meteorological data. J. Atmos. Oceanic Technoly. doi:10.1175/1520-0426(1986)003,0051:ANFTRI.2.0.CO;2􏰐

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