Articles | Volume 15, issue 6
Geosci. Model Dev., 15, 2365–2393, 2022
https://doi.org/10.5194/gmd-15-2365-2022
Geosci. Model Dev., 15, 2365–2393, 2022
https://doi.org/10.5194/gmd-15-2365-2022

Development and technical paper 21 Mar 2022

Development and technical paper | 21 Mar 2022

Impacts of a revised surface roughness parameterization in the Community Land Model 5.1

Ronny Meier et al.

Data sets

MODIS-based data on the sensitivity of LST to a conversion of vegetation to bare land Gregory Duveiller https://doi.org/10.3929/ethz-b-000503165

Supplementary Material of "Impacts of a Revised Surface Roughness Parameterization in the Community Land Model 5.1" Ronny Meier, Grégory Duveiller, Edouard Léopold Davin, Gordon B. Bonan, David M. Lawrence, Xiaolong Hu, Catherine Prigent, and Sonia I. Seneviratne https://doi.org/10.3929/ethz-b-000503165

Model code and software

Supplementary Material of "Impacts of a Revised Surface Roughness Parameterization in the Community Land Model 5.1" Ronny Meier, Grégory Duveiller, Edouard Léopold Davin, Gordon B. Bonan, David M. Lawrence, Xiaolong Hu, Catherine Prigent, and Sonia I. Seneviratne https://doi.org/10.3929/ethz-b-000503165

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Short summary
We revise the roughness of the land surface in the CESM climate model. Guided by observational data, we increase the surface roughness of forests and decrease that of bare soil, snow, ice, and crops. These modifications alter simulated temperatures and wind speeds at and above the land surface considerably, in particular over desert regions. The revised model represents the diurnal variability of the land surface temperature better compared to satellite observations over most regions.