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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Short summary
To improve the parameterization of the turbulence dissipation rate (ε) in numerical weather prediction models, we have assessed its temporal and spatial variability at various scales in the Columbia River Gorge during the WFIP2 field experiment. The turbulence dissipation rate shows large spatial variability, even at the microscale, with larger values in sites located downwind of complex orographic structures or in wind farm wakes. Distinct diurnal and seasonal cycles in ε have also been found.
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ACP | Articles | Volume 19, issue 7
Atmos. Chem. Phys., 19, 4367–4382, 2019
https://doi.org/10.5194/acp-19-4367-2019
Atmos. Chem. Phys., 19, 4367–4382, 2019
https://doi.org/10.5194/acp-19-4367-2019

Research article 04 Apr 2019

Research article | 04 Apr 2019

Spatial and temporal variability of turbulence dissipation rate in complex terrain

Nicola Bodini et al.

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Latest update: 15 Jan 2021
Publications Copernicus
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Short summary
To improve the parameterization of the turbulence dissipation rate (ε) in numerical weather prediction models, we have assessed its temporal and spatial variability at various scales in the Columbia River Gorge during the WFIP2 field experiment. The turbulence dissipation rate shows large spatial variability, even at the microscale, with larger values in sites located downwind of complex orographic structures or in wind farm wakes. Distinct diurnal and seasonal cycles in ε have also been found.
Citation
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Final-revised paper
Preprint