A revised linear ozone photochemistry parameterization for use in transport and general circulation models: multi-annual simulations

By D. Cariolle, H. Teyssèdre. 2007

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This article describes the validation of a linear parameterization of the ozone photochemistry for use in upper tropospheric and stratospheric studies. The present work extends a previously developed scheme by improving the 2-D model used to derive the coefficients of the parameterization. The chemical reaction rates are updated from a compilation that includes recent laboratory work. Furthermore, the polar ozone destruction due to heterogeneous reactions at the surface of the polar stratospheric clouds is taken into account as a function of the stratospheric temperature and the total chlorine content. Two versions of the parameterization are tested. The first one only requires the solution of a continuity equation for the time evolution of the ozone mixing ratio, the second one uses one additional equation for a cold tracer. The parameterization has been introduced into the chemical transport model MOCAGE. The model is integrated with wind and temperature fields from the ECMWF operational analyses over the period 2000–2004. Overall, the results from the two versions show a very good agreement between the modelled ozone distribution and the Total Ozone Mapping Spectrometer (TOMS) satellite data and the "in-situ" vertical soundings. During the course of the integration the model does not show any drift and the biases are generally small, of the order of 10%. The model also reproduces fairly well the polar ozone variability, notably the formation of "ozone holes" in the Southern Hemisphere with amplitudes and a seasonal evolution that follow the dynamics and time evolution of the polar vortex. The introduction of the cold tracer further improves the model simulation by allowing additional ozone destruction inside air masses exported from the high to the mid-latitudes, and by maintaining low ozone content inside the polar vortex of the Southern Hemisphere over longer periods in spring time. It is concluded that for the study of climate scenarios or the assimilation of ozone data, the present parameterization gives a valuable alternative to the introduction of detailed and computationally costly chemical schemes into general circulation models.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/f99beb4e70ec5f8a6447553e93197083f7111eea

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Citations in the corpus

The CAMS interim Reanalysis of Carbon Monoxide, Ozone and Aerosol for 2003–2015 (2016, positive): “For CAMSiRA, the Cariolle parameterization (Cariolle and Teyssèdre, 2007) of stratospheric ozone chemistry and the chemical mechanism CB05 for the troposphere were used.”
SEAS5: the new ECMWF seasonal forecast system (2018, positive): “…prognostic ozone scheme (Monge-Sanz et al., 2011) replaces the scheme used in SEAS4 and the default 43r1 configuration (Cariolle and Déqué, 1986; Cariolle and Teyssèdre, 2007); but as part of the seamless strategy used to develop SEAS5, prognostic ozone is not radiatively interactive as it was…”
The ERA5 global reanalysis (2020, neutral): “In addition, the prognostic ozone model includes the representation of the stratospheric ozone chemistry based on the Cariolle and Teyssèdre (2007) T A B L E 2 Overview of characteristics of ERA5 ERA-Interim ERA5 Publicly available now 1979 – August 2019 1979 onwards Expected in 2020 1950 –…”
Aerosol indirect effects – general circulation model intercomparison and evaluation with satellite data (2009, methodology): “The model is coupled to a aerosol chemistry and transport model (Koch et al., 2007; Bauer et al., 2007) and includes sulfates, nitrates, organic matter, black carbon, sea salt and dust as externally mixed species.”
Stratospheric variability and tropospheric ozone (2009, neutral): “Recently, Cariolle and Teyssedre [2007] added a cold tracer to account for this effect.”