Abstract
A photochemical box model has been used to simulate the mixing ratio ofozone under conditions reflecting those encountered in the marine boundarylayer at Cape Grim, Tasmania, where a decade-long record of ozone mixingratio is available. The model is based on the proposition that ozone loss byphotolysis, atmospheric reaction with hydroperoxy and hydroxyl radicals, andsurface deposition is balanced by ozone gain via entrainment from the lowerfree troposphere with a small additional source in summer from photolysis ofnitrogen dioxide. This model simulates very well the observed ozone records,reproducing both the small diurnal cycle in ozone mixing ratio observedduring the summer months, and the factor of two seasonal ozone cycle showinga distinct winter maximum and summer minimum. The model result confirms thatunder the low-NOx conditions of the clean marine boundarylayer net photochemical loss of ozone occurs at all times of year.
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Atkinson, R., Baulch, D. L., Cox, R. A., Hampson, R. F. Jr., Kerr, J. A., and Troe, J., 1992: Evaluated kinetic and photochemical data for atmospheric chemistry: supplement IV. IUPAc subcommittee on gas kinetic data evaluation for atmospheric chemistry, J. Phys. Chem. Ref. Data 21, 1125–1568.
Ayers, G. P., Penkett, S. A., Gillett, R. W., Bandy, B., Galbally, I. E., Meyer, C. P., Elsworth, C. M., Bentley, S. T., and Forgan, B. W., 1992: Evidence for photochemical control of ozone concentrations in unpolluted marine air, Nature 360, 446–448.
Ayers, G. P. and Galbally, I. E., 1995: A preliminary estimation of boundary-layer-free troposphere entrainment velocity at Cape Grim, in A. C. Dick and J. L. Gras (eds), Baseline 92, Bureau of Meteorology, Australia, pp. 10–15.
Ayers, G. P., Penkett, S. A., Gillett, R. W., Bandy, B., Galbally, I. E., Meyer, C. P., Elsworth, C. M., Bentley, S. T., and Forgan, B. W., 1996: The annual cycle of peroxides and ozone in marine air at Cape Grim, Tasmania, J. Atmos. Chem. 23, 221–252.
Ayers, G. P., Gillett, R. W., Granek, H., de Serves, C., and Cox, R. A., 1996: Formadehyde production from peroxy radical reactions in clean marine air, Geophys. Res. Lett., in press.
Boers, R., Ayers, G. P., and Gras, J. L., 1994: Coherence between seasonal variation in satellite-derived cloud optical depth and boundary layer CCN concentrations at a mid-latitude Southern Hemisphere station, Tellus 46B, 123–131.
Crutzen, P. J., 1995: Ozone in the troposphere, Chapter 10, in H. B. Singh (ed.), Composition, Chemistry and Climate of the Atmosphere, Van Nostrand Reinhold, New York.
de Forster, P. M. and Shine, K. P., 1995: A comparison of two radiation schemes for calculating ultraviolet radiation, Q. J. Royal Met. Soc. 121, 1113–1131.
DeMore, W. B., Sander, D. M., Howard, C. J., Ravishankara, A. R., Golden, D. M., Kolb, C. E., Hampson, R. F., Kurylo, M. J., and Molina, M., 1994: Chemical kinetics and photochemical data for use in stratospheric modelling, Evaluation Number 11, National Aeronautics and Space Administration, Jet Propulsion Laboratory, JPL Publication 94-26.
Donahue, N. M. and Prinn, R. g., 1990: Nonmethane hydrocarbon chemistry in the remote marine boundary layer, J. Geophys. Res. 95, 18387–18411.
Fishman, J. and Crutzen, P. J., 1978: The origin of ozone in the troposphere, Nature 274, 855–858.
Galbally, I. E. and Roy, C. R., 1980: Destruction of ozone at the Earth’s surface, Q. J. Royal Met. Soc. 106, 599–620.
Graedel, T. E. and Crutzen, P. J., 1992: Atmospheric Change: an Earth System Perspective, W. H. Freeman, New York.
Johnson, J. E., Gammon, R. H., Larsen, J., Bates, T. S., Oltmans, S. J., and Farmer, J. C., 1990: Ozone in the marine boundary layer of the Pacific and Indian Oceans: latitudinal gradients and diurnal profiles, J. Geophys. Res. 95, 11847–11856.
Joseph, J. H., Wiscombe, W., and Weinman, J. L., 1976: The Delta-Eddington method for radiative flux transfer, J. Atmos. Sci. 33, 2452–2458.
Kawa, S. R. and Pearson, R. Jr., 1989: Ozone budgets from the dynamics and chemistry of marine stratocumulus experiment, J. Geophys. Res. 94, 9809–9817.
Monks, P. S., Carpenter, L. J., Penkett, S. A., and Ayers, G. P., 1996: Night-time peroxy radical chemistry in the remote marine boundary layer over the Southern Ocean, Geophys. Res. Lett. 23, 535–538.
Penkett, S. A., Monks, P. S., Carpenter, L. J., Clemitshaw, K. C., Ayers, G. P., Gillett, R. W., Galbally, I. E., and Meyer, C. P., 1996: Relationships between ozone photolysis rates and peroxy radical concentrations in clean marine air over the southern ocean, J. Geophys. Res. 102, 12805–12817.
Ridley, B. A., Carroll, M. A., and Gregory, G. L., 1987: Measurement of nitric oxide in the boundary layer and free troposphere over the Pacific Ocean, J. Geophys. Res. 92, 2025–2047.
Slemr, F. and Tremmel, H. G., 1994: Hydroperoxides in the marine troposphere over the Atlantic Ocean, J. Atmos. Chem. 19, 371–404.
Thompson, A. M., Johnson, J. E., Torres, A. L., Bates, T. S., Kelly, K. C., Atlas, E., Greenberg, J. P., Donahue, N. M., Yvon, S. A., Saltzman, E. S., Heikes, B. G., Mosher, B. W., Shashkov, A. A., and Yegorov, V. I., 1993: Ozone observations and a model of the marine boundary layer photochemistry during SAGA 3, J. Geophys. Res. 98, 16955–16968.
Torres, A. L. and Thompson, A. M., 1993: Nitric oxide in the equatorial Pacific boundary layer: SAGA 3 measurements, J. Geophys. Res. 98, 16949–16954.
Zafiriou, O. C., McFarland, M., and Bromund, R. H., 1980: Nitric oxide in seawater, Science 207, 637–639.
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Ayers, G.P., Granek, H. & Boers, R. Ozone in the Marine Boundary Layer at Cape Grim: Model Simulation. Journal of Atmospheric Chemistry 27, 179–195 (1997). https://doi.org/10.1023/A:1005828930552
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DOI: https://doi.org/10.1023/A:1005828930552