Non-parametric and least squares Langley plot methods

Kiedron, P. W.; Michalsky, J. J.

doi:https://doi.org/10.5194/amt-9-215-2016

Articles | Volume 9, issue 1

https://doi.org/10.5194/amt-9-215-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-9-215-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 1

Research article

|

25 Jan 2016

Research article |

| 25 Jan 2016

Non-parametric and least squares Langley plot methods

P. W. Kiedron and J. J. Michalsky

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Final revised paper (published on 25 Jan 2016)
Preprint (discussion started on 27 Apr 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC C2713: 'Comment on 'Non-parametric and least squares Langley plot methods' by P. W. Kiedron and J. J. Michalsky', Anonymous Referee #3, 26 Aug 2015
RC C3546: 'Review of the paper “Non-parametric and least squares Langley plot methods”, by Kiedron and Michalsky.', Anonymous Referee #4, 26 Oct 2015
AC C3959: 'Response to Referees #3 and #4', Joseph Michalsky, 19 Nov 2015

Short summary

Langley plots are plots of the ln(V₀) vs. air mass m used to calibrate sun radiometers, mainly, to determine the aerosol component of the atmosphere assuming attenuation follows V = V₀·exp(−τ·m). This is simple if the atmosphere is stable since the intercept of this plot is ln(V₀), which can then be used to solve for tau for any measured V. The atmosphere is not stable; therefore, 11 methods to measure V₀s and determine robust estimates of V₀s for interesting field sites are discussed.