Abstract
Simulation of carbon dioxide (CO2) at hourly/weekly intervals and fine vertical resolution at the continental or coastal sites is challenging because of coarse horizontal resolution of global transport models. Here the regional Weather Research and Forecasting (WRF) model coupled with atmospheric chemistry is adopted for simulating atmospheric CO2 (hereinafter WRF-CO2) in nonreactive chemical tracer mode. Model results at horizontal resolution of 27 × 27 km and 31 vertical levels are compared with hourly CO2 measurements from Tsukuba, Japan (36.05°N, 140.13 oE) at tower heights of 25 and 200 m for the entire year 2002. Using the wind rose analysis, we find that the fossil fuel emission signal from the megacity Tokyo dominates the diurnal, synoptic and seasonal variations observed at Tsukuba. Contribution of terrestrial biosphere fluxes is of secondary importance for CO2 concentration variability. The phase of synoptic scale variability in CO2 at both heights are remarkably well simulated the observed data (correlation coefficient >0.70) for the entire year. The simulations of monthly mean diurnal cycles are in better agreement with the measurements at lower height compared to that at the upper height. The modelled vertical CO2 gradients are generally greater than the observed vertical gradient. Sensitivity studies show that the simulation of observed vertical gradient can be improved by increasing the number of vertical levels from 31 in the model WRF to 37 (4 below 200 m) and using the Mellor–Yamada–Janjic planetary boundary scheme. These results have large implications for improving transport model simulation of CO2 over the continental sites.
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References
Ahmadov R, Gerbig C, Kretschmer R, Koerner S, Neininger B, Dolman A J and Sarrat C 2007 Mesoscale covariance of transport and CO2 fluxes: Evidence from observations and simulations using the WRF-VPRM coupled atmosphere-biosphere model; J. Geophys. Res. 112 D22107. doi: 10.1029/2007JD008552.
Bakwin P S, Tans P P, Zhao C, Ussler W I and Quesnell E 1995 Measurements of carbon dioxide on a very tall tower; Tellus 47B 535–549.
Ballav S, Patra P K, Takigawa M, Ghosh S, De U K, Maksyutov S, Murayama S, Mukai H and Hashimoto S 2012 Simulation of CO2 concentration over east Asia region with the help of the regional model WRF-CO2 ; J. Meteor. Soc. Japan 90 (6) 959–976.
Corbin K D, Denning A S and Gurney K R 2010 The space and time impacts on U.S. regional atmospheric CO2 concentrations from a high resolution fossil fuel CO2 emissions inventory; Tellus 62 (5) 506–511.
Denning A, Fung I and Randall D 1995 Latitudinal gradient of atmospheric CO2 due to seasonal exchange with land biota; Nature 376 240–243.
Freitas S R, Longo K M, Silva Dias M A F, Chatfield R, Silva Dias P, Artaxo P, Andreae M O, Grell G, Rodrigues L F, Fazenda A and Panetta J 2009 The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 1: Model description and evaluation; Atmos. Chem. Phys. 9 2843–2861. doi: 10.5194/acp-9-2843-2009.
Garcia-Diez M, Fernandez J, Fita L and Yague C 2013 Seasonal dependence of WRF model biases and sensitivity to PBL schemes over Europe; Quart. J. Roy. Meteorol. Soc. 139 501–514.
Gerbig C, Korner S and Lin J C 2008 Vertical mixing in atmospheric tracer transport models: Error characterization and propagation; Atmos. Chem. Phys. 8 591–602.
Grell G A, Peckham S E, Schmitz R, McKeen S, Frost G, Skamarock W and Eder B 2005 Fully coupled ‘online’ chemistry within the WRF model; Atmos. Environ. 39 (37) 6957–6975.
Haszpra L, Ramonet M, Schmidt M, Barcza Z, Pátkai Z., Tarczay K, Yver C, Tarniewicz J and Ciais P 2012 Variation of CO2 mole fraction in the lower free troposphere, in the boundary layer and at the surface; Atmos. Chem. Phys. 12 8865–8875. doi: 10.5194/acp-12-8865-2012.
Hong S-Y and Kim S-W 2008 Stable boundary layer mixing in a vertical diffusion schem; Proc. Ninth Annual WRF User’s Workshop, Boulder, CO, National Center for Atmospheric Research 3.3 [http://www.mmm.ucar.edu/wrf/users/workshops/WS2008/abstracts/3-03.pdf].
Hu X-M, Nielsen-Gammon J W and Zhang F 2010 Evaluation of three planetary boundary layer schemes in the WRF Mode; J. Appl. Meteorol. Climatol. 49 1831–1844.
Inoue H Y and Matsueda H 2001 Measurements of atmospheric CO2 from a meteorological tower in Tsukuba, Japan; Tellus 53 (3) 205–219.
Janjic Z I 1994 The step-mountain Eta coordinate model: Further developments of the convection, viscous layer, and turbulence closure scheme; Mon. Wea. Rev. 122 927–945.
Kretschmer R, Gerbig C, Kartens U and Koch F T 2012 Error characterization of CO2 vertical mixing in the atmospheric transport model WRF-VPRM; Atmos. Phys. Chem. 12 2441–2458.
Kretschmer R, Gerbig C, Karstens U, Biavati G, Vermeulen A, Vogel F, Hammer S and Totsche K U 2014 Impact of optimized mixing heights on simulated regional atmospheric transport of CO2; Atmos. Chem. Phys. 14 7149–7172.
Lauvaux T and Davis K J 2014 Planetary boundary layer errors in mesoscale inversions of column-integrated CO2 measurements; J. Geophys. Res. Atmos. 119 490–508. doi: 10.1002/2013JD020175.
Law R M et al. 2008 TransCom model simulations of hourly atmospheric CO2: Experimental overview and diurnal cycle results for 2002; Global Biogeochem. Cycles 22 GB3009. doi: 10.1029/2007GB003050.
Mellor G L and Yamada T 1982 Development of a turbulence closure model for geophysical fluid problem; Rev. Geophys. 20 851–875.
Miles N L, Richardson S J, Davis K J, Lauvaux T, Andrews A E, West T O, Bandaru V and Crosson E R 2012 Large amplitude spatial and temporal gradients in atmospheric boundary layer CO2 mole fractions detected with a tower-based network in the U.S. upper Midwest; J. Geophys. Res. 117 G01019. doi: 10.1029/2011JG001781.
Moreira D S, Freitas S R, Bonatti J P, Mercado L M, Rosário N M E, Longo K M, Miller J B, Gloor M and Gatti L V 2013 Coupling between the JULES land-surface scheme and the CCATT-BRAMS atmospheric chemistry model (JULES-CCATT-BRAMS1.0): Applications to numerical weather forecasting and the CO2 budget in South America; Geosci. Model Dev. 6 1243– 1259.
Nakazawa T, Ishizawa M, Higuchi K and Travett N B A 1997 Two curve fitting methods applied to CO2 flask data; Environmetrics 8 197–218.
Olivier J G J and Berdowski J J M 2001 Global emission sources and sinks; In: The Climate System (eds) Berdowski, J, Guicherit R and Heij B J, Balkema A A, Lisse, Netherlands, pp. 33–78, ISBN: 9058092550.
Olsen S C and Randerson J T 2004 Differences between surface and column atmospheric CO2 and implications for carbon cycle research; J. Geophys. Res. 109 D02301. doi: 10.1029/2003JD003968.
Palmiéri J, Orr J C, Dutay J-C, Béranger K, Schneider A, Beuvier J and Somot S 2015 Simulated anthropogenic CO2 storage and acidification of the Mediterranean Sea; Biogeosci. 12 781–802.
Patra P K a., Law R M et al. 2008 TransCom model simulations of hourly atmospheric CO2: Analysis of synoptic-scale variations for the period 2002–2003; Global Biogeochem. Cycles 22 GB4013. doi: 10.1029/2007GB003081.
Peylin P, Houweling S, Krol M C, Karstens U, Rödenbeck C, Geels C, Vermeulen A, Badawy B, Aulagnier C, Pregger T, Delage F, Pieterse G, Ciais P and Heimann M 2011 Importance of fossil fuel emission uncertainties over Europe for CO2 modelling: Model intercomparison; Atmos. Chem. Phys. 11 6607–6622. doi: 10.5194/acp-11-6607-2011.
Pillai D, Gerbig C, Ahmadov R, Roedenbeck C, Kretschmer R, Koch T, Thompson R, Neininger B and Lavric J V 2011 High-resolution simulations of atmospheric CO2 over complex terrain – representing the Ochsenkopf mountain tall tower; Atmos. Chem. Phys. 11 7445–7464. doi: 10.5194/acp-11-7445-2011.
Sarrat C, Noilhan J, Lacarrére P, Ceschia E, Ciais P, Dolman A J, Elbers J A, Gerbig C, Gioli B, Lauvaux T, Miglietta F, Neininger B, Ramonet M, Vellinga O and Bonnefond J M 2009 Mesoscale modelling of the CO2 interactions between the surface and the atmosphere applied to the April 2007 CERES field experiment; Biogeosci. 6 633–646.
Smallman T L, Williams M and Moncrieff J B 2014 Can seasonal and interannual variation in landscape CO2 fluxes be detected by atmospheric observation of CO2 concentrations made at tall tower?; Biogeosci. 11 735– 747.
Seibert P, Beyrich F, Gryning S-E, Joffre S, Rasmussen A and Tercier P. 1998 Mixing height determination for dispersion modelling, Report of Working Group 2; In: Harmonization in the preprocessing of meteorological data for atmospheric dispersion models; COST Action 710, CEC Publication EUR 18195 145–265.
Takahashi T, Sutherland S C, Sweeney C a., Poisson A et al. 2002 Global sea–air CO2 flux based on climatological surface ocean pCO2, and seasonal biological and temperature effects; Deep Sea Res.: Part II 49 1601–1622. doi: 10.1016/S0967-0645(02)00003-6.
Takigawa M, Niwano M, Akimoto H and Takahashi M 2007 Development of a one-way nested global-regional air quality forecasting model; SOLA 3 81–84. doi: 10.2151/sola.2007-021.
Tolk L F, Meesters A G C A, Dolman A J and Peters W 2008 Modelling representation errors of atmospheric CO2mixing ratios at a regional scale; Atmos. Chem. Phys. 8 6587–6596.
Tolk L F, Dolman A J, Meesters A G C A and Peters W 2011 A comparison of different inverse carbon flux estimation approaches for application on a regional domain; Atmos. Chem. Phys. 11 10349–10365.
Vogel F R, Thiruchittampalam B, Theloke J, Kretschmer R, Gerbig C, Hammer S and Levin I 2013 Can we evaluate a fine-grained emission model using high-resolution atmospheric transport modelling and regional fossil fuel CO2 observations?; Tellus B 65 18681.
Acknowledgements
SB is supported by a research fellowship award by the Council for Scientific and Industrial Research (CSIR), Government of India. This work is partly supported by JSPS/MEXT KAKENHI-A grant number 22241008. We wish to thank the research teams and support staff of the Tsukuba tall tower observation station for their efforts. Initial support from the GOSAT project and Shamil Maksyutov is greatly appreciated. We acknowledge the help rendered by Dr. Sandipan Mukherjee, GBPIHED, India during the preparation of the manuscript.
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BALLAV, S., PATRA, P.K., SAWA, Y. et al. Simulation of CO 2 concentrations at Tsukuba tall tower using WRF-CO 2 tracer transport model. J Earth Syst Sci 125, 47–64 (2016). https://doi.org/10.1007/s12040-015-0653-y
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DOI: https://doi.org/10.1007/s12040-015-0653-y