Wavenumber response of the shear probe: Difference between revisions

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The probe-response correction depends on the dimensions of the shear probe. For a commonly used shear probe the spectrum is corrected for the spatial averaging of the shear probe by multiplying it by the factor correction <math>1+\left( \frac{k}{k_0} \right)^2</math> where <math>k_0</math> = 50 cpm and <math>k</math> is the wavenumber expressed in units of cpm <ref>Macoun, P., & Lueck, R. (2004). Modeling the spatial response of the airfoil shear probe using different sized probes. Journal of Atmospheric and Oceanic Technology, 21(2), 284-297.</ref>. The correction reaches a factor of 10 at a wavenumber of 150 cpm, and it is not recommended to use spectral data beyond this wavenumber unless the probe is small and <math>k_0</math> is larger than 50 cpm.
{{DefineConcept
|description=Spatial averaging effect of the tip of a shear probe
|article_type=Concepts
}}
 
The probe-response correction depends on the dimensions of the shear probe.  
For a commonly used shear probe the spectrum is corrected for the spatial averaging of the shear probe by multiplying it by the factor <math>1+\left( \frac{k}{k_0} \right)^2</math> where <math>k_0</math> = 50 cpm and <math>k</math> is the wavenumber expressed in units of cpm  
<ref name="macounlueck2004">{{Cite journal
|authors= P. Macoun and R. Lueck
|journal_or_publisher= J. Atmos. Oceanic Technol.
|paper_or_booktitle=  Modeling the spatial response of the airfoil shear probe using different sized probes
|year= 2004
|doi= 10.1175/1520-0426(2004)021
}}</ref>
The correction reaches a factor of 10 at a wavenumber of 150 cpm, and it is not recommended to use spectral data beyond this wavenumber unless your shear probe is small enough to have a cutoff wavenumber <math>k_0</math> that is larger than 50 cpm.


==References==
==References==
<references />
<references />
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return to [[Flow chart for shear probes]]
[[Category:Shear probes]]

Latest revision as of 16:53, 7 May 2022


Short definition of Wavenumber response of the shear probe
Spatial averaging effect of the tip of a shear probe

This is the common definition for Wavenumber response of the shear probe, but other definitions maybe discussed within the wiki.

{{#default_form:DefineConcept}} {{#arraymap:|,|x||}}


The probe-response correction depends on the dimensions of the shear probe. For a commonly used shear probe the spectrum is corrected for the spatial averaging of the shear probe by multiplying it by the factor <math>1+\left( \frac{k}{k_0} \right)^2</math> where <math>k_0</math> = 50 cpm and <math>k</math> is the wavenumber expressed in units of cpm [1] The correction reaches a factor of 10 at a wavenumber of 150 cpm, and it is not recommended to use spectral data beyond this wavenumber unless your shear probe is small enough to have a cutoff wavenumber <math>k_0</math> that is larger than 50 cpm.

References

  1. ↑ {{#arraymap:P. Macoun and R. Lueck|,|x|x|, |and}}. 2004. Modeling the spatial response of the airfoil shear probe using different sized probes. J. Atmos. Oceanic Technol.. doi:10.1175/1520-0426(2004)021


return to Flow chart for shear probes

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