ICUC12-250, updated on 21 May 2025
https://doi.org/10.5194/icuc12-250
12th International Conference on Urban Climate
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Development of a simple urban canopy and building energy model SLUCM+BEM (v2.0) for WRF-Urban and global climate models
Yuya Takane1, Yukihiro Kikegawa2, Zhiwen Luo3, Hiroyuki Kusaka4, and Sue Grimmond5
Yuya Takane et al.
  • 1National Institute of Advanced Industrial Sciences and Technology (AIST), Tsukuba, Japan (takane.yuya@aist.go.jp)
  • 2Meisei University, Hino, Japan (kikegawa@es.meisei-u.ac.jp)
  • 3Cardiff University, Cardiff, UK (LuoZ18@cardiff.ac.uk)
  • 4University of Tsukuba, Tsukuba, Japan (kusaka.hiroyuki.ff@alumni.tsukuba.ac.jp)
  • 5University of Reading, Reading, UK (c.s.grimmond@reading.ac.uk)

We have developed a simple urban canopy and building energy model SLUCM+BEM (v1.0) (Takane et al. 2024 GMD) that can simulate dynamic anthropogenic heat (QF) and electricity (EC) consumption through heating and air-conditioning (HAC) use. However, v1.0 assumes that the interior wall and ceiling temperatures are constant as the target temperature for the HAC system (indoor temperature (Tin) is not modelled), which means that v1.0 does not allow the simulation of a naturally ventilated situation. This assumption could lead to an overestimation of EC from HAC use (ECHAC). To address this limitation, we have developed v2.0, which can simulate Tin. Comparison of simulated and observed Tin in naturally ventilated residential buildings in London during the summer of 2023 showed that v2.0 can well capture the daily variation and uncertainty of the observed situations. We also confirmed that the reproducibility of ECHAC by SLUCM+BEM improved significantly from v1.0 to v2.0 in Tokyo for both summer and winter seasons. This means that v2.0 could simulate QF by HAC more realistically than v1.0. These results suggest that v2.0 is applicable not only for urban outdoor temperature, QF, ECHAC, but also for indoor temperature in cities worldwide.

Ref:
Takane, Y., Y. Kikegawa. K. Nakajima, and H. Kusaka, 2024: SLUCM+BEM (v1.0): a simple parameterisation for dynamic anthropogenic heat and electricity consumption in WRF-Urban (v4.3.2). Geoscientific Model Development, 17, 8639–8664. doi: 10.5194/gmd-17-8639-2024

How to cite: Takane, Y., Kikegawa, Y., Luo, Z., Kusaka, H., and Grimmond, S.: Development of a simple urban canopy and building energy model SLUCM+BEM (v2.0) for WRF-Urban and global climate models, 12th International Conference on Urban Climate, Rotterdam, The Netherlands, 7–11 Jul 2025, ICUC12-250, https://doi.org/10.5194/icuc12-250, 2025.

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