Articles | Volume 8, issue 7
https://doi.org/10.5194/amt-8-2699-2015
https://doi.org/10.5194/amt-8-2699-2015
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, A. Christen, and J. A. Voogt

Related authors

Hectometric-scale modelling of the urban mixed layer evaluated with a dense LiDAR-ceilometer network
Russell H. Glazer, Sue Grimmond, Lewis Blunn, Daniel Fenner, Humphrey Lean, Andreas Christen, Will Morrison, and Dana Looschelders
EGUsphere, https://doi.org/10.5194/egusphere-2025-2064,https://doi.org/10.5194/egusphere-2025-2064, 2025
This preprint is open for discussion and under review for Weather and Climate Dynamics (WCD).
Short summary
Harmonised boundary layer wind profile dataset from six ground-based doppler wind lidars in a transect across Paris, France
William Morrison, Dana Looschelders, Jonnathan Céspedes, Bernie Claxton, Marc-Antoine Drouin, Jean-Charles Dupont, Aurélien Faucheux, Martial Haeffelin, Christopher C. Holst, Simone Kotthaus, Valéry Masson, James McGregor, Jeremy Price, Matthias Zeeman, Sue Grimmond, and Andreas Christen
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2025-167,https://doi.org/10.5194/essd-2025-167, 2025
Preprint under review for ESSD
Short summary
Sectoral attribution of greenhouse gas and pollutant emissions using multi-species eddy covariance on a tall tower in Zurich, Switzerland
Rainer Hilland, Josh Hashemi, Stavros Stagakis, Dominik Brunner, Lionel Constantin, Natascha Kljun, Betty Molinier, Samuel Hammer, Lukas Emmenegger, and Andreas Christen
EGUsphere, https://doi.org/10.5194/egusphere-2025-1088,https://doi.org/10.5194/egusphere-2025-1088, 2025
Short summary
A relaxed eddy accumulation flask sampling system for 14C-based partitioning of fossil and non-fossil CO2 fluxes
Ann-Kristin Kunz, Lars Borchardt, Andreas Christen, Julian Della Coletta, Markus Eritt, Xochilt Gutiérrez, Josh Hashemi, Rainer Hilland, Armin Jordan, Richard Kneißl, Virgile Legendre, Ingeborg Levin, Susanne Preunkert, Pascal Rubli, Stavros Stagakis, and Samuel Hammer
EGUsphere, https://doi.org/10.5194/egusphere-2024-3175,https://doi.org/10.5194/egusphere-2024-3175, 2025
Short summary
Modular approach to near-time data management for multi-city atmospheric environmental observation campaigns
Matthias Zeeman, Andreas Christen, Sue Grimmond, Daniel Fenner, William Morrison, Gregor Feigel, Markus Sulzer, and Nektarios Chrysoulakis
Geosci. Instrum. Method. Data Syst., 13, 393–424, https://doi.org/10.5194/gi-13-393-2024,https://doi.org/10.5194/gi-13-393-2024, 2024
Short summary

Related subject area

Subject: Others (Wind, Precipitation, Temperature, etc.) | Technique: Remote Sensing | Topic: Data Processing and Information Retrieval
Combining commercial microwave links and weather radar for classification of dry snow and rainfall
Erlend Øydvin, Renaud Gaban, Jafet Andersson, Remco (C. Z.) van de Beek, Mareile Astrid Wolff, Nils-Otto Kitterød, Christian Chwala, and Vegard Nilsen
Atmos. Meas. Tech., 18, 2279–2293, https://doi.org/10.5194/amt-18-2279-2025,https://doi.org/10.5194/amt-18-2279-2025, 2025
Short summary
Improved consistency in solar-induced fluorescence retrievals from GOME-2A with the SIFTER v3 algorithm
Juliëtte C. S. Anema, K. Folkert Boersma, Lieuwe G. Tilstra, Olaf N. E. Tuinder, and Willem W. Verstraeten
Atmos. Meas. Tech., 18, 1961–1979, https://doi.org/10.5194/amt-18-1961-2025,https://doi.org/10.5194/amt-18-1961-2025, 2025
Short summary
An information content approach to diagnosing and improving CLIMCAPS retrieval consistency across instruments and satellites
Nadia Smith and Christopher D. Barnet
Atmos. Meas. Tech., 18, 1823–1839, https://doi.org/10.5194/amt-18-1823-2025,https://doi.org/10.5194/amt-18-1823-2025, 2025
Short summary
Characterizing urban planetary boundary layer dynamics using 3-year Doppler wind lidar measurements in a western Yangtze River Delta city, China
Tianwen Wei, Mengya Wang, Kenan Wu, Jinlong Yuan, Haiyun Xia, and Simone Lolli
Atmos. Meas. Tech., 18, 1841–1857, https://doi.org/10.5194/amt-18-1841-2025,https://doi.org/10.5194/amt-18-1841-2025, 2025
Short summary
Radar-based high-resolution ensemble precipitation analyses over the French Alps
Matthieu Vernay, Matthieu Lafaysse, and Clotilde Augros
Atmos. Meas. Tech., 18, 1731–1755, https://doi.org/10.5194/amt-18-1731-2025,https://doi.org/10.5194/amt-18-1731-2025, 2025
Short summary

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.
Download
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.
Share