Articles | Volume 21, issue 3
Atmos. Chem. Phys., 21, 1861–1887, 2021
https://doi.org/10.5194/acp-21-1861-2021
Atmos. Chem. Phys., 21, 1861–1887, 2021
https://doi.org/10.5194/acp-21-1861-2021

Research article 10 Feb 2021

Research article | 10 Feb 2021

Simulation of radon-222 with the GEOS-Chem global model: emissions, seasonality, and convective transport

Bo Zhang et al.

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Cited articles

Allen, D. J., Rood, R. B., Thompson, A. M., and Hudson, R.D.: Three-dimensional radon-222 calculations using assimilated meteorological data and a convective mixing algorithm, J. Geophys. Res.-Atmos., 101, 6871–6881, 1996. 
Balkanski, Y. J., Jacob, D. J., Arimoto, R., and Kritz, M. A.: Distribution of 222 Rn over the North Pacific: implications for continental influences, J. Atmos. Chem., 14, 353–374, 1992. 
Balkanski, Y. J., Jacob, D. J., Gardner, G. M., Graustein, W. C., and Turekian, K. K.: Transport and residence times of tropospheric aerosols inferred from a global three-dimensional simulation of 210Pb, J. Geophys. Res.-Atmos., 98, 20573–20586, https://doi.org/10.1029/93jd02456, 1993. 
Bey, I., Jacob, D. J., Yantosca, R. M., Logan, J. A., Field, B. D., Fiore, A. M., Li, Q. B., Liu, H. G. Y., Mickley, L. J., and Schultz, M. G.: Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluation, J. Geophys. Res., 106, 23073–23095, https://doi.org/10.1029/2001JD000807, 2001. 
Botha, R., Labuschagne, C., Williams, A. G., Bosman, G., Brunke, E. G., Rossouw, A., and Lindsay, R.: Characterising fifteen years of continuous atmospheric radon activity observations at Cape Point (South Africa), Atmos. Environ., 176, 30–39, 2018. 
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We simulate atmospheric 222Rn using the GEOS-Chem model to improve understanding of 222Rn emissions and characterize convective transport in the model. We demonstrate the potential of a customized global 222Rn emission scenario to improve simulated surface 222Rn concentrations and seasonality. We assess convective transport using observed 222Rn vertical profiles. Results have important implications for using chemical transport models to interpret the transport of trace gases and aerosols.
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