ACP Atmospheric Chemistry and Physics ACP 1680-7324 Copernicus GmbH Göttingen, Germany 10.5194/acp-13-1093-2013 Off-line algorithm for calculation of vertical tracer transport in the troposphere due to deep convection Belikov D. A. 1 2 Maksyutov S. 1 Krol M. 3 4 5 Fraser A. 6 Rigby M. 7 Bian H. 8 Agusti-Panareda A. 9 Bergmann D. 10 Bousquet P. 11 Cameron-Smith P. 10 Chipperfield M. P. 12 Fortems-Cheiney A. 11 Gloor E. 12 Haynes K. 13 14 Hess P. 15 Houweling S. 3 4 Kawa S. R. 8 Law R. M. 14 Loh Z. 14 Meng L. 16 Palmer P. I. 6 Patra P. K. 17 Prinn R. G. 18 Saito R. 17 Wilson C. 12 Center for Global Environmental Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan Division for Polar Research, National Institute of Polar Research, 10-3, Midoricho, Tachikawa, Tokyo 190-8518, Japan SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands Institute for Marine and Atmospheric Research Utrecht (IMAU), Princetonplein 5, 3584 CC Utrecht, The Netherlands Wageningen University and Research Centre, Droevendaalsesteeg 4, 6708 PB Wageningen, The Netherlands School of GeoSciences, University of Edinburgh, King's Buildings, West Mains Road, Edinburgh, EH9 3JN, UK School of Chemistry University of Bristol Bristol, UK Goddard Earth Sciences and Technology Center, NASA Goddard Space Flight Center, Code 613.3, Greenbelt, MD 20771, USA ECMWF, Shinfield Park, Reading, Berks, RG2 9AX, UK Atmospheric, Earth, and Energy Division, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA94550, USA Universite de Versailles Saint Quentin en Yvelines (UVSQ), GIF sur YVETTE, France Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK Department of Atmospheric Science, Colorado State University, Fort Collins, CO, 80523, USA Centre for Australian Weather and Climate Research, CSIRO Marine and Atmospheric Research, 107-121 Station St., Aspendale, VIC 3195, Australia Cornell University, 2140 Snee Hall, Ithaca, NY 14850, USA Department of Geography and Environmental Studies Program, Western Michigan University, Kalamazoo, MI 49008, USA Research Institute for Global Change/JAMSTEC, 3173-25 Showa-machi, Yokohama, 236-0001, Japan Center for Global Change Science, Building 54, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA 01 02 2013 13 3 1093 1114 This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://www.atmos-chem-phys.net/13/1093/2013/acp-13-1093-2013.html The full text article is available as a PDF file from http://www.atmos-chem-phys.net/13/1093/2013/acp-13-1093-2013.pdf

A modified cumulus convection parametrisation scheme is presented. This scheme computes the mass of air transported upward in a cumulus cell using conservation of moisture and a detailed distribution of convective precipitation provided by a reanalysis dataset. The representation of vertical transport within the scheme includes entrainment and detrainment processes in convective updrafts and downdrafts. Output from the proposed parametrisation scheme is employed in the National Institute for Environmental Studies (NIES) global chemical transport model driven by JRA-25/JCDAS reanalysis. The simulated convective precipitation rate and mass fluxes are compared with observations and reanalysis data. A simulation of the short-lived tracer <sup>222</sup>Rn is used to further evaluate the performance of the cumulus convection scheme. Simulated distributions of <sup>222</sup>Rn are evaluated against observations at the surface and in the free troposphere, and compared with output from models that participated in the TransCom-CH<sub>4</sub> Transport Model Intercomparison. From this comparison, we demonstrate that the proposed convective scheme in general is consistent with observed and modeled results.

 References Allen, D. J., Rood, R. B., Thompson, A. M., and Hudson, R. D.: Three-dimensional $^222$Rn calculations using assimilated meteorological data and a convective mixing algorithm, J. Geophys. Res., 101, 6871–6881, 1996. Arakawa, A.: The cumulus parameterization problem: Past, present, and future, J. Climate, 17, 2493–2525, 2004. Arakawa, A. and Shubert, W. H.: Interaction of a cumulus ensemble with the large-scale environment, Part I, J. Atmos. Sci., 31, 674–704, 1974. Austin, P. M. and Houze Jr., R. A.: A technique for computing vertical transports by precipitating cumuli, J. Atmos. Sci., 30, 1100–1111, 1973. Bechtold, P., Chaboureau, J., Beljaars, A., Betts, A., Köhler, M., Miller, M., and Redelsperger, J.-L.: The simulation of the diurnal cycle of convective precipitation over land in a global model, Q. J. Roy. Meteor. Soc., 130, 3119–3137, http://dx.doi.org/10.1256/qj.03.103doi:10.1256/qj.03.103, 2004. Belikov, D., Maksyutov, S., Miyasaka, T., Saeki, T., Zhuravlev, R., and Kiryushov, B.: Mass-conserving tracer transport modelling on a reduced latitude-longitude grid with NIES-TM, Geosci. Model Dev., 4, 207–222, http://dx.doi.org/10.5194/gmd-4-207-2011doi:10.5194/gmd-4-207-2011, 2011. Belikov, D. A., Maksyutov, S., Sherlock, V., Aoki, S., Deutscher, N. M., Dohe, S., Griffith, D., Kyro, E., Morino, I., Nakazawa, T., Notholt, J., Rettinger, M., Schneider, M., Sussmann, R., Toon, G. C., Wennberg, P. O., and Wunch, D.: Simulations of column-average CO<sub>2</sub> and CH<sub>4</sub> using the NIES TM with a hybrid sigma-isentropic ($\sigma-\theta$) vertical coordinate, Atmos. Chem. Phys. Discuss., 12, 8053–8106, http://dx.doi.org/10.5194/acpd-12-8053-2012doi:10.5194/acpd-12-8053-2012, 2012. Bian, H., Kawa, S. R., Chin, M., Pawson, S., Zhu, Z., Rasch, P., and Wu, S.: A test of sensitivity to convective transport in a global atmospheric CO<sub>2</sub> simulation, Tellus B, 58, 463–475, http://dx.doi.org/10.1111/j.1600-0889.2006.00212.xdoi:10.1111/j.1600-0889.2006.00212.x, 2006. Brost, R. A. and Chatfield, R. B.: Transport of radon in a three-dimensional, subhemispheric model, J. Geophys. Res., 94, 5095–5119, 1989. Chipperfield, M. P.: New version of the TOMCAT/SLIMCAT off-line chemical transport model: intercomparison of stratospheric tracer experiments, Quart. J. Roy. Meteor. Soc., 132, 1179–1203, 2006. Conen, F.: Variation of $^222$Rn Flux and its Implication for Tracer Studies, in: 1st International Expert Meeting on Sources and Measurements of Natural Radionuclides Applied to Climate and Air Quality Studies, WMO/GAW Report No.155, 83–85, March 2004. Corbin, K. D. and Law, R. M.: Extending atmospheric CO<sub>2</sub> and tracer capabilities in ACCESS, CAWCR Technical Report No. 35, The Centre for Australian Weather and Climate Re-search, ISBN: 978-1-921826-177, Aspendale, 2011. Dentener, F., Feichter, J., and Jeuken, A.: Simulation of $^222$Rn using on-line and off-line global models, Tellus B, 51, 573–602, 1999. Emmons, L. K., Walters, S., Hess, P. G., Lamarque, J.-F., Pfister, G. G., Fillmore, D., Granier, C., Guenther, A., Kinnison, D., Laepple, T., Orlando, J., Tie, X., Tyndall, G., Wiedinmyer, C., Baughcum, S. L., and Kloster, S.: Description and evaluation of the Model for Ozone and Related chemical Tracers, version 4 (MOZART-4), Geosci. Model Dev., 3, 43–67, http://dx.doi.org/10.5194/gmd-3-43-2010doi:10.5194/gmd-3-43-2010, 2010. Feichter, J. and Crutzen, P. J.: Parameterization of vertical transport due to deep cumulus convection in a global transport model and its evaluation with $^222$Rn measurements, Tellus B, 42, 100–117, 1990. Feng, W., Chipperfield, M. P., Dhomse, S., Monge-Sanz, B. M., Yang, X., Zhang, K., and Ramonet, M.: Evaluation of cloud convection and tracer transport in a three-dimensional chemical transport model, Atmos. Chem. Phys., 11, 5783–5803, http://dx.doi.org/10.5194/acp-11-5783-2011doi:10.5194/acp-11-5783-2011, 2011. Folkins, I., Loewenstein, M., Podolske, J., Oltmans, S. J., and Proffitt, M.: A barrier to vertical mixing at 14 km in the tropics: Evidence from ozone sondes and aircraft measurements, J. Geophys. Res., 104, 22095–22102, 1999. Fraser, A., C. Chan Miller, P. I. Palmer, N. M. Deutscher, N. B. Jones, and Griffith, D. W. T.: The Australian methane budget: interpreting surface and train-borne measurements using a chemistry transport model, J. Geophys. Res., 116, D20306 http://dx.doi.org/10.1029/2011JD015964doi:10.1029/2011JD015964, 2011. Fueglistaler, S., Wernli, H., and Peter, T: Tropical troposphere-to-stratosphere transport inferred from trajectory calculations, J. Geophys. Res., 109, D03108, http://dx.doi.org/10.1029/2003JD004069doi:10.1029/2003JD004069, 2004. Gent, P. R., Yeager, S. G., Neale, R. B., Levis, S., and Bailey, D. A.: Improvements in a half-degree atmosphere/land version of the CCSM, Clim. Dynam., 79, 25–58, 2009. Gold, S., Barkhau, H. W., Shleien, B., and Kahn, B.: Measurement of naturally occurring radionuclides in air, in: Natural Radiation Environment, edited by: Adams, J. A. S. and Lowder, W. M., Chicago, University of Chicago Press, 1964. Gregory, D. and Rowntree, P R.: A mass flux convection scheme with representation of cloud ensemble characteristics and stability dependent closure,~Mon. Weather Rev.,~118, 1483–1506, 1990. Grell, G., Dudhia, D., and Stauffer, D.: A description of the fifth-generation Penn State/NCAR Mesoscale Model (MM5), NCAR/TN-398, 122, 1994. Hack, J. J., Boville, B. A., Briegleb, B. P., Kiehl, J. T., Rasch, P. J., and Williamson, D. L.: Description of the NCAR community climate model (CCM2), NCAR/TN-382, 108, 1993. Heimann, M. and Keeling, C.: A three-dimensional model of atmospheric CO<sub>2</sub> transport based on observed winds: 2: Model description and simulated tracer experiments, Geophys. Mon., 55, 237–275, 1989. Heimann, M., Monfray, P., and Polian, G.: Modeling the long-range transport of $^222$Rn to subantarctic and arctic areas, Tellus B, 42, 83–99, 1990. Hutter, A. R., Larsen, R. J., Maring, H., and Merrill, J. T.: $^222$Rn at Bermuda and Mauna Loa: Local and Distant Sources, J. Radioanal. Nucl. Ch., 193, 309–318, 1995. Jacob, D. J., Prather, M.J., and Rasch, P. J.: Evaluation and intercomparison of global atmospheric transport models using $^222$Rn and other short-lived tracers, J. Geophys. Res., 102, 5953–5970, 1997. Johnson, R. H.: The role of convective-scale precipitation downdrafts in cumulus and synoptic scale interactions, J. Atmos. Sci., 33, 1890–1910, 1976. Kawa, S. R., Erickson III, D. J., Pawson, S., and Zhu, Z.: Global CO<sub>2</sub> transport simulations using meteorological data from the NASA data assimilation system, J. Geophys. Res., 109, D18312, http://dx.doi.org/10.1029/2004JD004554doi:10.1029/2004JD004554, 2004. Kritz, M. A., Rosner, S. W., and Stockwell, D. Z.: Validation of an off-line three-dimensional chemical transport model using observed radon profiles 1. Observations, J. Geophys. Res., 103, 8425–8432, 1998. Krol, M., Houweling, S., Bregman, B., van den Broek, M., Segers, A., van Velthoven, P., Peters, W., Dentener, F., and Bergamaschi, P.: The two-way nested global chemistry-transport zoom model TM5: algorithm and applications, Atmos. Chem. Phys., 5, 417–432, http://dx.doi.org/10.5194/acp-5-417-2005doi:10.5194/acp-5-417-2005, 2005. Kuo, H. L.: On formation and intensification of tropical cyclones through latent heat release by cumulus convection, J. Atmos. Sci., 22, 40–63, 1965. Kuo, H. L.: Further studies of the parameterization of the effect of cumulus convection on large scale flow, J. Atmos. Sci., 31, 1232–1240, 1974. Kurihara, Y.: Numerical integration of the primitive equations on a spherical grid, Mon. Weather Rev., 93, 399–415, 1965. Law, R. M., Kowalczyk, E. A., and Wang, Y. P.: Using atmospheric CO<sub>2</sub> data to assess a simplified carbon-climate simulation for the 20th century, Tellus B, 53, 427–437, 2006. Lawrence, M. G. and Rasch, P. J.: Tracer transport in deep convective updrafts: plume ensemble versus bulk formulations, J. Atmos. Sci., 62, 2880–2894, 2005. Lawrence, M. G. and Salzmann, M.: On interpreting studies of tracer transport by deep cumulus convection and its effects on atmospheric chemistry, Atmos. Chem. Phys., 8, 6037–6050, http://dx.doi.org/10.5194/acp-8-6037-2008doi:10.5194/acp-8-6037-2008, 2008. Li, Y. and Chang, J. S.: A three-dimensional global episodic tracer transport model 1. Evaluation of its transport processes by $^222$Rn simulations, J. Geophys. Res., 101, 25931–25947, 1996. Lindeken, C. L.: Seasonal variations in the concentration of airborne radon and thoron daughters, USAEC Rep. UCRL-50007, University of California Lawrence Radiation Laboratory, Livermore, CA, 41–43, 1966. Liu, S. C., McAfee, J. R., and Cicerone, R. J.: Radon-222 and tropospheric vertical transport, J. Geophys. Res., 89, 7291–7297, 1984. Mahowald, N., Rasch, P., and Prinn, R.: Cumulus convection parameterizations in chemical transport models, J. Geophys. Res., 100, 26173–26189, 1995. Mahowald, N., Rasch, P., Eaton, B., Whittlestone, S., and Prinn, R.: Transport of $^222$Rn to the remote troposphere using MATCH and assimilated winds from ECMWF and NCEP/NCAR, J. Geophys. Res., 102, 28139–28152, 1997. Maksyutov, S., Patra, P. K., Onishi, R., Saeki, T., and Nakazawa, T.: NIES/FRCGC global atmospheric tracer transport model: Description, validation, and surface sources and sinks inversion, J. Earth Simulator, 9, 3–18, 2008. Martens, C. S., Shay, T. J., Mendlovitz, H. P., Matross, D. M., Saleska, S. R., Wofsy, S. C., Menton, W. S. W., Moura, M. C., Crill, P. M., De Moraes, O. L. L., and Lima, R. L.: Radon fluxes in tropical forest ecosystems of Brazilian Amazonia: nighttime CO<sub>2</sub> net ecosystem exchange derived from radon and eddy covariance methods, Global Change Biol., 10, 618–629, 2004. Mishra, U. C., Rangarajan, C., and Eapen, C. D.: Natural radioactivity of the atmosphere over the Indian land mass, inside deep mines, and over adjoining oceans, Natural Radiation Environment III. US Department of Energy, Special Symposium Series 51, CONF 780422, US Department of Energy, Washington, DC, 327–346, 1980. Mizuta, R., Oouchi, K., Yoshimura, H., Noda, A., Katayama, K., Yukimoto, S., Hosaka, M., and Kusunoki, S.: 20-km-mesh global climate simulations using JMA-GSM model – Mean climate state, J. Meteor. Soc. Japan, 84, 165–185, 2006. Myoung, B. and Nielsen-Gammon, J. W.: Sensitivity of monthly convective precipitation to environmental conditions, J. Climate, 23, 166–188, 2010. Olivié, D. J. L., van Velthoven, P. F. J., Beljaars, A. C. M., and Kelder, H. M., 2004: Comparison between archived and off-line diagnosed convective mass fluxes in the chemistry transport model TM3, J. Geophys. Res., 109, D11303, http://dx.doi.org/10.1029/2003JD004036doi:10.1029/2003JD004036, 2004. Onogi, K., Tsutsui, J., Koide, H., Sakamoto, M., Kobayashi, S., Hatsushika, H., Matsumoto, T., Yamazaki, N., Kamahori, H., Takahashi, K., Kadokura, S., Wada, K., Kato, K., Oyama, R., Ose, T., Mannoji, N., and Taira, R.: The JRA-25 Reanalysis, J. Meteor. Soc. Japan, 85, 369–432, 2007. Ott, L. E., Bacmeister, J., Pawson, S., Pickering, K., Stenchikov, G., Suarez, M., Huntrieser, H., Loewenstein, M., Lopez, J., and Xueref-Remy,, I.: Analysis of convective transport and parameter sensitivity in a single column version of the Goddard earth observation system, version 5, general circulation model, J. Atmos. Sci., 66, 627–646, 2009. Patra, P. K., Takigawa, M., Ishijima, K., Choi, B., Cunnold, D., Dlugokencky, E. J., Fraser, P., Gomez-Pelaez, A. J., Goo, T.-Y., Kim, J.-S., Krummel, P., Langenfelds, R., Meinhardt, F., Mukai, H., O'Doherty, S., Prinn, R. G., Simmonds, P., Steele, P., Tohjima, Y., Tsuboi, K., Uhse, K., Weiss, R., Worthy, D., and Nakazawa, T.: Growth rate, seasonal, synoptic, diurnal variations and budget of methane in the lower atmosphere, J. Meteor. Soc. Japan, 87, 635–663, 2009. Patra, P. K., Houweling, S., Krol, M., Bousquet, P., Belikov, D., Bergmann, D., Bian, H., Cameron-Smith, P., Chipperfield, M. P., Corbin, K., Fortems-Cheiney, A., Fraser, A., Gloor, E., Hess, P., Ito, A., Kawa, S. R., Law, R. M., Loh, Z., Maksyutov, S., Meng, L., Palmer, P. I., Prinn, R. G., Rigby, M., Saito, R., and Wilson, C.: TransCom model simulations of CH<sub>4</sub> and related species: linking transport, surface flux and chemical loss with CH<sub>4</sub> variability in the troposphere and lower stratosphere, Atmos. Chem. Phys., 11, 12813–12837, http://dx.doi.org/10.5194/acp-11-12813-2011doi:10.5194/acp-11-12813-2011, 2011. Putman, W. M. and Suarez~, M.:~Cloud-system resolving simulations with the NASA Goddard Earth Observing System global atmospheric model (GEOS-5),~Geophys. Res. Lett.,~38,~L16809, http://dx.doi.org/10.1029/2011GL048438doi:10.1029/2011GL048438, 2011. Ramonet, M., Schmidt, M., Pèpin, L., Kazan, V., Picard, D., Filippi, D., Jourd'heuil, L., Valant, C., Monvoisin, G., Sarda, R., and Ciais, P.: The French Trace Gas Monitoring Program RAMCES, in: Report of the Eleventh WMO/IAEA Meeting of Experts on Carbon Dioxide Concentration and Related Tracer Measurement Techniques, WMO/GAW Report 148, edited by: Toru, S. and Kazuto, S., Tokyo, Japan, 136–148, 2003. Rasch, P. J., Mahowald, N. M., and Eaton, B. E.: Representations of transport, convection and the hydrologic cycle in chemical transport models: Implications for the modeling of short-lived and soluble species, J. Geophys. Res., 102, 28127–28138, 1997. Rotman, D. A., Atherton, C., Bergmann, D. J., Cameron-Smith, P. J., Chuang, C. C., Connell, P. S., Dignon, J. E., Franz, A., Grant, K. E., Kinnison, D. E., Molenkamp, C. R., Proctor, D. D., and Tannahill, J. R.: IMPACT, the LLNL 3-D global atmospheric chemical transport model for the combined troposphere and stratosphere: model description and analysis of ozone and other trace gases, J. Geophys. Res., 109, D04303, http://dx.doi.org/10.1029/2002JD003155doi:10.1029/2002JD003155, 2004. Schumacher, C. and Houze, Jr., R. A.: Stratiform rain in the tropics as seen by the TRMM Precipitation Radar, J. Climate, 16, 1739–1756, 2003. Stockwell, D. Z., Kritz, M. A., Chipperfield, M. P., and Pyle, J. A.: Validation of an off-line 3-D chemical transport model using observed radon profiles – Part II: Description of the model and results, J. Geophys. Res., 103, 8433–8445, 1998. Tiedtke, M.: A comprehensive mass flux scheme for cumulus parameterization in large scale models, Mon. Weather Rev., 117, 1779–1800, 1989. Tost, H., Lawrence, M. G., Brühl, C., Jöckel, P., The GABRIEL Team, and The SCOUT-O3-DARWIN/ACTIVE Team: Uncertainties in atmospheric chemistry modelling due to convection parameterisations and subsequent scavenging, Atmos. Chem. Phys., 10, 1931–1951, http://dx.doi.org/10.5194/acp-10-1931-2010doi:10.5194/acp-10-1931-2010, 2010. Turner, J. S.: The motion of buoyant elements in turbulent surroundings, J. Fluid. Mech., 16, 1–16, 1963. Wilkening, M. H.: Daily and annual courses of natural atmospheric radioactivity, J. Geophys. Res., 64, 521–526, 1959. Wong, S., Fetzer, E. J., Kahn, B. H., Tian, B., Lambrigsten, B. H., and Ye, H.: Closing the global water budget with AIRS water vapor, MERRA winds and evaporation, and TRMM precipitation, J. Climate, 24, 6307–6321, 2011. Xie, P. and Arkin, P. A.: Global precipitation: a 17-year monthly analysis based on gauge observations, satellite estimates, and numerical model outputs, B. Am. Meteor. Soc., 78, 2539–2558, 1997. Zahorowski, W. and Whittlestone, S.: Radon database 1987–1996: a review, in: Baseline Atmospheric Program (Australia) 1996, edited by: Gras, J. L., Derek, N., Tindale, N. W., and Dick, A. L., Bureau of Meteorology and CSIRO Atmospheric Research, Melbourne, 71–80, 1999. Zahorowski, W., Chambers, S., Wang, T., Kang, C.-H., Uno, I.,Poon, S., Oh, S.-N., Werczynski, S., Kim, J., and Henderson-Sellers, A.: Radon-222 in boundary layer and free tropospheric continental outflow events at the three ACE-Asian sites, Tellus, 57B, 124–140, 2005. Zaucker, F., Daum, P. H., Wetterauer, U., Berkowitz, C., Kromer, B., and W. S. Broecker,: Atmospheric $^222$Rn measurements during the 1993 NARE Intensive, J. Geophys. Res., 101, 29149–29164, 1996. Zellweger, C., Klausen, J., and Buchmann, B.: System and Performance Audit of Surface Ozone and Carbon Monoxide at the Global GAW Station Hohenpeissenberg, Germany, WCC-Empa Report 06/3, WMO World Calibration Centre for Surface Ozone, Carbon Monoxide and Methane, Empa Dubendorf, Switzerland, 41 pp., 2006. Zhang, G. J. and McFarlane, N. A.: Sensitivity of climate simulations to the parameterization of cumulus convection in the Canadian Climate Centre general circulation model, Atmos.-Ocean, 33, 407–446, 1995. Zhang, K., Wan, H., Zhang, M., and Wang, B.: Evaluation of the atmospheric transport in a GCM using radon measurements: sensitivity to cumulus convection parameterization, Atmos. Chem. Phys., 8, 2811–2832, http://dx.doi.org/10.5194/acp-8-2811-2008doi:10.5194/acp-8-2811-2008, 2008. Zhang, L. G., Guo, Q. J., and Iida, T.: Atmospheric radon levels in Beijing, China, Radiat. Prot. Dosim., 112, 449–453, 2004.