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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Discussion papers | Copyright
https://doi.org/10.5194/gmd-2018-220
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Model evaluation paper 29 Oct 2018

Model evaluation paper | 29 Oct 2018

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This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

Model evaluation of high-resolution urban climate simulations: using WRF ARW/LSM/SLUCM model as a case study

Zhiqiang Li1, Yulun Zhou2, Bingcheng Wan3, Bo Huang1, Biao Liu4, and Hopun Chung5 Zhiqiang Li et al.
  • 1Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Hong Kong, 999077, China
  • 2Department of Geography and Resource Management, The Chinese University of Hong Kong, Hong Kong, 999077, China
  • 3Glarun Technology Co., Ltd., Nanjing, 211100, China
  • 4Research Institute of Tsinghua University in Shenzhen, Shenzhen, 518057, China
  • 5Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China

Abstract. The veracity of urban climate simulation models should be systematically evaluated to demonstrate the trustworthiness of these models against possible model uncertainties. However, existing studies paid insufficient attention to the model evaluation; most studies only provided some simple comparison lines between modelled variables and their corresponding observed ones on the temporal dimension. Challenges remain since such simple comparisons cannot concretely prove that the simulation of urban climate behaviors is reliable. Studies without systematic model evaluations are ambiguous or arbitrary to some extent, which may still lead to some seemingly new findings, but these findings may be scientifically misleading. To tackle these challenges, this article proposes a methodological framework for the model evaluation of high-resolution urban climate simulations and demonstrates its effectiveness with a case study in the fast-urbanizing city of Shenzhen, China. It is intended to remind (again) urban climate modelers of the necessity of conducting systematic model evaluations in urban-scale climatology modelling and reduce these ambiguous or arbitrary modelling practices.

Zhiqiang Li et al.
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This article proposes a methodological framework for the model evaluation of high-resolution urban climate simulations and demonstrates its effectiveness with a case study in the fast-urbanizing city of Shenzhen, China. It is intended to remind (again) urban climate modelers of the necessity of conducting systematic model evaluations in urban-scale climatology modelling and reduce these ambiguous or arbitrary modelling practices.
This article proposes a methodological framework for the model evaluation of high-resolution...
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