Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 16, issue 22
Articles | Volume 16, issue 22
https://doi.org/10.5194/gmd-16-6857-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-16-6857-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 22
Development and technical paper
 | 
24 Nov 2023
Development and technical paper |  | 24 Nov 2023

A sub-grid parameterization scheme for topographic vertical motion in CAM5-SE

Yaqi Wang, Lanning Wang, Juan Feng, Zhenya Song, Qizhong Wu, and Huaqiong Cheng

Data sets

The dataset of the manuscript: A Sub-Grid Parameterization Scheme for Topographic Vertical Motion in CAM5-SE (version 1) Yaqi Wang, Lanning Wang, Juan Feng, Zhenya Song, Qizhong Wu, and Huaqiong Cheng https://doi.org/10.5281/zenodo.7256923

GPCP Version 3.2 Satellite-Gauge (SG) Combined Precipitation Data Set G. J. Huffman, A. Behrangi, D. T. Bolvin, and E. J. Nelkin https://doi.org/10.5067/MEASURES/GPCP/DATA304

ERA5 monthly averaged data on pressure levels from 1940 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.6860a573

Model code and software

The dataset of the manuscript: A Sub-Grid Parameterization Scheme for Topographic Vertical Motion in CAM5-SE (version 1) Yaqi Wang, Lanning Wang, Juan Feng, Zhenya Song, Qizhong Wu, and Huaqiong Cheng https://doi.org/10.5281/zenodo.7256923

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Short summary
In this study, to noticeably improve precipitation simulation in steep mountains, we propose a sub-grid parameterization scheme for the topographic vertical motion in CAM5-SE to revise the original vertical velocity by adding the topographic vertical motion. The dynamic lifting effect of topography is extended from the lowest layer to multiple layers, thus improving the positive deviations of precipitation simulation in high-altitude regions and negative deviations in low-altitude regions.
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