Preparing quality-controlled velocities: Difference between revisions
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After the raw velocities are quality-controlled and optionally despiked, velocities must be further processed before analysing the turbulence spectra. The main steps to prepare the quality-controlled velocities for turbulence analysis are the following: | After the raw velocities are quality-controlled and optionally despiked, velocities must be further processed before analysing the turbulence spectra. The main steps to prepare the quality-controlled velocities for turbulence analysis are the following: | ||
# [[Replacement strategies for missing velocities | Replace missing samples]] discarded during quality-control | # [[Replacement strategies for missing velocities | Replace missing samples]] discarded during quality-control | ||
# [[Segmenting datasets]] to estimate velocity spectra | # [[Segmenting datasets]] in preparation to estimate velocity spectra | ||
# [[Rotation of the velocity measurements|Rotate the measurements]] into the flow's frame of reference | # [[Rotation of the velocity measurements|Rotate the measurements]] into the flow's frame of reference | ||
# [[Decomposing velocity measurements|Decompose the velocities]] into the mean, turbulence, and surface waves component | # [[Decomposing velocity measurements|Decompose the velocities]] into the mean, turbulence, and surface waves component | ||
Latest revision as of 17:29, 5 July 2022
After the raw velocities are quality-controlled and optionally despiked, velocities must be further processed before analysing the turbulence spectra. The main steps to prepare the quality-controlled velocities for turbulence analysis are the following:
- Replace missing samples discarded during quality-control
- Segmenting datasets in preparation to estimate velocity spectra
- Rotate the measurements into the flow's frame of reference
- Decompose the velocities into the mean, turbulence, and surface waves component
When measuring velocities continuously or in long bursts, some individuals may also detrend the time series before beginning any of these processing steps.
Return to Data processing of raw measurements
Continue to Spectral estimates and identifying the inertial subrange
