Improvement of near-surface wind speed modeling through refined aerodynamic roughness length in high-roughness surface  regions: implementation and validation in the Weather  Research and Forecasting (WRF) model version 4.0

Wang, Jiamin; Yang, Kun; Liu, Jiarui; Zhou, Xu; Ma, Xiaogang; Tang, Wenjun; Yuan, Ling; Ren, Zuhuan

doi:10.5194/gmd-18-10077-2025

Articles | Volume 18, issue 24

https://doi.org/10.5194/gmd-18-10077-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-10077-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 24

Development and technical paper

|

16 Dec 2025

Development and technical paper |

| 16 Dec 2025

Improvement of near-surface wind speed modeling through refined aerodynamic roughness length in high-roughness surface regions: implementation and validation in the Weather Research and Forecasting (WRF) model version 4.0

Jiamin Wang, Kun Yang, Jiarui Liu, Xu Zhou, Xiaogang Ma, Wenjun Tang, Ling Yuan, and Zuhuan Ren

Supplement

https://doi.org/10.5194/gmd-18-10077-2025-supplement

Data sets

RA5 hourly data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.adbb2d47

ERA5 monthly averaged data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.f17050d7

New Insights into Urbanization Based on Global Mapping and Analysis of Human Settlements in the Rural–Urban Continuum Xiyu Li et al. https://doi.org/10.6084/m9.figshare.21716357.v6

Model code and software

Codes for manuscript "Improvement of near-surface wind speed modeling through refined aerodynamic roughness length in high-roughness surface regions: implementation and validation in the Weather Research and Forecasting (WRF) model version 4.0'' Jiamin Wang https://doi.org/10.5281/zenodo.15108200

Short summary

We set out to improve the accuracy of near-surface wind simulations in areas where buildings and tall vegetation have made the ground surface very rough. Through a clever use of differences between weather station measurements and reanalysis data, we estimated more realistic surface roughness values and created a new high-resolution map for China. This map greatly improves wind speed simulations and supports better decisions in wind-related fields.