Journal article Open Access

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

Bo Zhang; Hongyu Liu; James Crawford; Gao Chen; Duncan Fairlie; Scott Chambers; Chang-Hee Kang; Alastair Williams; Kai Zhang; David Considin; Melissa Sulprizio; Robert Yantosca


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    <subfield code="a">Simulation of radon-222 with the GEOS-Chem global model:   Emissions, seasonality, and convective transport</subfield>
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    <subfield code="a">&lt;p&gt;Data repository for paper:&lt;br&gt;
&amp;quot;Simulation of radon-222 with the GEOS-Chem global model:&lt;br&gt;
Emissions, seasonality, and convective transport&amp;quot; by&lt;br&gt;
Bo Zhang, Hongyu Liu, James H. Crawford, Gao Chen,&lt;br&gt;
T. Duncan Fairlie, Scott Chambers, Chang-Hee Kang,&lt;br&gt;
Alastair G. Williams, Kai Zhang, David B. Considine,&lt;br&gt;
Daniel J. Jacob, Melissa P. Sulprizio,&lt;br&gt;
and Robert M. Yantosca, submitted to Atmos. Chem. Phys., July 2020&lt;/p&gt;

&lt;p&gt;Created by Bo Zhang (bzhang@nianet.org), July 2020&lt;/p&gt;

&lt;p&gt;-&amp;gt; Data&amp;nbsp; &amp;nbsp;&lt;br&gt;
&amp;nbsp;&amp;nbsp; -&amp;gt; Rn_surface&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Contains site measurement files&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; -&amp;gt; Please refer to Zhang et al. (2011) for most of the surface&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; site measurements.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; -&amp;gt; MLO_radon.xlsx&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Long-term Rn-222 measurements at Mauna Loa.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; -&amp;gt; Gosan_2001-2010.xlsx&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Long-term Rn-222 measurements at Gosan.&lt;br&gt;
&amp;nbsp;&amp;nbsp; -&amp;gt; Rn_profile&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Contains no data here. Please refer to Liu et al. (1984),&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Kritz et al. (1998), Zaucker et al. (1996), and&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Williams et al. (2011) for the four Rn-222 profile datasets.&amp;nbsp; &amp;nbsp;&lt;/p&gt;

&lt;p&gt;-&amp;gt; Model_modified&lt;br&gt;
&amp;nbsp;&amp;nbsp; -&amp;gt; Code_1101f_Rn_paper&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; The folder contains a complete code directory of GEOS-Chem v11-01f.&lt;br&gt;
&amp;nbsp;&amp;nbsp; -&amp;gt; hcox_gc_RnPbBe_mod.F90.ZKCHA120NASWred&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; This file replaces HEMCO/Extensions/hcox_gc_RnPbBe_mod.F90&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; under GEOS-Chem version 11.01f code directory to read the&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; updated emission files (Rn_emis_ZKCHA120_NASWred). Search &amp;#39;bz&amp;#39; in&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; the file for modifications.&lt;br&gt;
&amp;nbsp;&amp;nbsp; -&amp;gt; Rn_emis_ZKCHA120_NASWred: updated global Rn-222 emission fluxes.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; -&amp;gt; ZKC_EMIS_ARR_ATOM_2X25_MONTHLY.sav&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; IDL save-file with saved monthly mean Rn-222 emission fluxes.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; (gridded 2x2.5 array ZKC_EMIS_ARR_ATOM_2X25_MONTHLY)&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Unit is atom Rn-222 per cm2 per second.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; -&amp;gt; Rn_emis_ZKCHA120_NASWred_2x25_std01-12&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Text files need to be put under GEOS-Chem run directory.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Each monthly file contains a single column array.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; The data are placed in a longitude and latitude sequence&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; starting from (180W, 89.5S) to (178W, 89.5S) .... and&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; until (177.5E, 89.5N).&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; The entire folder needs to be placed under GEOS-Chem run directory.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; -&amp;gt; For the other three emission scenarios used in the paper&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; please refer to Jacob et al. (1997), Schery and Wasiolek (1998),&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; and Zhang et al. (2011).&lt;/p&gt;

&lt;p&gt;-&amp;gt; Model_output &amp;nbsp;&lt;br&gt;
&amp;nbsp; -&amp;gt; tracerinfo.dat, diaginfo.dat: GEOS-Chem dat files needed for IDL-GAMAP&lt;br&gt;
&amp;nbsp; -&amp;gt; rpbbe2_1101f_merra_2013_JA97.bpch: model output with emission JA97.&lt;br&gt;
&amp;nbsp; -&amp;gt; rpbbe2_1101f_merra_2013_SW98.bpch: model output with emission SW98.&lt;br&gt;
&amp;nbsp; -&amp;gt; rpbbe2_1101f_merra_2013_ZK11.bpch: model output with emission ZK11.&lt;br&gt;
&amp;nbsp; -&amp;gt; rpbbe2_1101f_merra_2013_ZKCHA120NASWred.bpch: model output with the&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; updated emission in this work.&lt;/p&gt;

&lt;p&gt;&lt;br&gt;
Reference:&lt;/p&gt;

&lt;p&gt;Jacob, D. J., Prather, M. J., Rasch, P. J., Shia, R. L.,&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Balkanski, Y. J., Beagley, S. R., ... &amp;amp; Chipperfield, M. P.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; (1997). Evaluation and intercomparison of global atmospheric&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; transport models using 222Rn and other short‐lived tracers.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Journal of Geophysical Research: Atmospheres, 102(D5), 5953-5970.&lt;br&gt;
Kritz, M. A., Rosner, S. W. and Stockwell, D. Z.: Validation of&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; an off-line three-dimensional chemical transport model&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; using observed radon profiles: 1. Observations, J. Geophys.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Res, 103, 8425&amp;ndash;8432, 1998.&lt;br&gt;
Liu, S. C., Mcafee, J. R. and Cicerone, R. J.: Radon 222 and&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Tropospheric Vertical Transport, J. Geophys. Res.,&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 89(20), 7291&amp;ndash;7297, doi:10.1029/JD089iD05p07291, 1984.&lt;br&gt;
Schery, S. D. and Wasiolek, M. A.:&amp;nbsp; Modeling radon flux&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; from the Earth&amp;rsquo;s surface, in: Radon and Thorn in the&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Human Environment, in: Proceedings of the 7th Tohwa&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; University International Symposium, edited by:&amp;nbsp; Katase,&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; A. and Shimo, M., World Scientific Publishing Co. Pre.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Ltd., Singapore, 73&amp;ndash;78, 1998.&lt;br&gt;
Williams, A. G., Zahorowski, W., Chambers, S., Griffiths,&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; A., Hacker, J. M., Element, A. and Werczynski, S.:&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; The vertical distribution of radon in clear and cloudy&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; daytime terrestrial boundary layers, J. Atmos. Sci., 68(1),&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 155&amp;ndash;174, doi:10.1175/2010JAS3576.1, 2011.&lt;br&gt;
Zaucker, F., PH,&amp;nbsp; and D., U, W., Berkowitz, C., nd Kromer,&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; B. and Broecker, W. S.: Atmospheric 222Rn measurements&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; during the 1993 NARE Intensive., J. Geophys. Res., 101,&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; 29149&amp;ndash;29164, 1996.&lt;br&gt;
Zhang, K., Feichter, J., Kazil, J., Wan, H., Zhuo, W.,&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Griffiths, A., ... &amp;amp; Yver, C. (2011). Radon activity&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; in the lower troposphere and its impact on ionization&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; rate: a global estimate using different radon emissions.&lt;br&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Atmospheric Chemistry and Physics, 11(15), 7817-7838.&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&lt;/p&gt;

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