Articles | Volume 16, issue 20
https://doi.org/10.5194/gmd-16-5931-2023
https://doi.org/10.5194/gmd-16-5931-2023
Model evaluation paper
 | 
20 Oct 2023
Model evaluation paper |  | 20 Oct 2023

Evaluation of vertically resolved longwave radiation in SPARTACUS-Urban 0.7.3 and the sensitivity to urban surface temperatures

Megan A. Stretton, William Morrison, Robin J. Hogan, and Sue Grimmond

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Cited articles

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Short summary
Cities' materials and forms impact radiative fluxes. We evaluate the SPARTACUS-Urban multi-layer approach to modelling longwave radiation, describing realistic 3D geometry statistically using the explicit DART (Discrete Anisotropic Radiative Transfer) model. The temperature configurations used are derived from thermal camera observations. SPARTACUS-Urban accurately predicts longwave fluxes, with a low computational time (cf. DART), but has larger errors with sunlit/shaded surface temperatures.
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