Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 9, issue 1
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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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.
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