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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 8, issue 7
Atmos. Meas. Tech., 8, 2699–2714, 2015
https://doi.org/10.5194/amt-8-2699-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Meas. Tech., 8, 2699–2714, 2015
https://doi.org/10.5194/amt-8-2699-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 03 Jul 2015

Research article | 03 Jul 2015

The effect of radiometer placement and view on inferred directional and hemispheric radiometric temperatures of an urban canopy

C. Adderley et al.
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Cited articles  
Adderley, C. D.: The effect of preferential view direction on measured urban surface temperature, Master's thesis, University of British Columbia, 2012.
Arya, S. P.: Introduction to Micrometeorology, Academic Press, 2 Edn., 2008.
Christen, A. and Vogt, R.: Energy and radiation balance of a central European city, Int. J. Climatol., 24, 1395–1421, 2004.
Christen, A., Meier, F., and Scherer, D.: High-frequency fluctuations of surface temperatures in an urban environment, Theor. Appl. Climatol., 108, 301–324, 2012.
Christen, A., Oke, T. R., Steyn, D. G., and Roth, M.: 35 years of urban climate research at the "Vancouver-Sunset" flux tower, FluxLetter, 5, 29–36, 2013.
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Short summary
Any radiometer at a fixed location has a biased view when observing a convoluted, three-dimensional urban canopy. The bias of various sensor views (nadir, oblique, hemispherical) is quantified. The error in inferring surface temperatures ranged between -2.6 and +2.9K relative to the complete surface temperature. For a hemispherical pyrgeometer, it was found that above 3.5 times the mean building height the horizontal positional error is less than the typical accuracy of such sensors.
Any radiometer at a fixed location has a biased view when observing a convoluted,...
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