Articles | Volume 15, issue 13
Atmos. Chem. Phys., 15, 7269–7286, 2015
https://doi.org/10.5194/acp-15-7269-2015
Atmos. Chem. Phys., 15, 7269–7286, 2015
https://doi.org/10.5194/acp-15-7269-2015

Research article 03 Jul 2015

Research article | 03 Jul 2015

Impact of planetary boundary layer turbulence on model climate and tracer transport

E. L. McGrath-Spangler et al.

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Cited articles

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Balkanski, Y., Schulz, M., Claquin, T., and Guibert, S.: Reevaluation of Mineral aerosol radiative forcings suggests a better agreement with satellite and AERONET data, Atmos. Chem. Phys., 7, 81–95, https://doi.org/10.5194/acp-7-81-2007, 2007.
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PBL processes are important for weather, climate, and tracer transport and concentration. In the GEOS-5 AGCM, the PBL depth is used in the calculation of turbulent mixing. This study analyzes the impact of using different PBL depth definitions in this calculation. Near surface wind speed differences modify Saharan dust on the order of 1e-4kg m-2. CO surface concentrations are modified by up to 20 ppb over biomass burning regions. Instantaneous CO2 differences are on the order of 10 ppm.
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