Publication Abstracts

Law et al. 2023, submitted

Law, K.S, J.L. Hjorth, J.B. Pernov, C. Whaley, H. Skov, M. Collaud Coen, J. Langner, S.R. Arnold, D.W Tarasick, J. Christensen, M. Deushi, P. Effertz, G. Faluvegi, M. Gauss, U. Im, N. Oshima, I. Petropavlovskikh, D. Plummer, K. Tsigaridis, S. Tsyro, S. Solberg, and S.T Turnock, 2023: Arctic tropospheric ozone trends. Geophys. Res. Lett., submitted.

Trends in tropospheric ozone, an important air pollutant and short-lived climate forcer (SLCF), are estimated using available surface and ozonesonde profile data for 1993-2019. Using a coherent methodology, observed trends are compared to modeled trends (1995-2015) from the Arctic Monitoring Assessment Programme SLCF 2021 assessment. Statistically significant increases in observed surface ozone at Arctic coastal sites, notably during winter, and concurrent decreasing trends in surface carbon monoxide, are generally captured by multi-model median (MMM) trends. Wintertime increases are also estimated in the free troposphere at most Arctic sites, but tend to be overestimated by the MMMs. Springtime surface ozone increases in northern coastal Alaska are not simulated while negative springtime trends in northern Scandinavia are not always reproduced. Possible reasons for observed changes and model behavior are discussed, including decreasing precursor emissions, changing ozone sinks, and variability in large-scale meteorology.

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BibTeX Citation

  author={Law, K. S and Hjorth, J. L. and Pernov, J. B. and Whaley, C. and Skov, H. and Collaud Coen, M. and Langner, J. and Arnold, S. R. and Tarasick, D. W and Christensen, J. and Deushi, M. and Effertz, P. and Faluvegi, G. and Gauss, M. and Im, U. and Oshima, N. and Petropavlovskikh, I. and Plummer, D. and Tsigaridis, K. and Tsyro, S. and Solberg, S. and Turnock, S. T},
  title={Arctic tropospheric ozone trends},
  journal={Geophys. Res. Lett.},
  note={Manuscript submitted for publication}

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RIS Citation

ID  - la01600j
AU  - Law, K. S
AU  - Hjorth, J. L.
AU  - Pernov, J. B.
AU  - Whaley, C.
AU  - Skov, H.
AU  - Collaud Coen, M.
AU  - Langner, J.
AU  - Arnold, S. R.
AU  - Tarasick, D. W
AU  - Christensen, J.
AU  - Deushi, M.
AU  - Effertz, P.
AU  - Faluvegi, G.
AU  - Gauss, M.
AU  - Im, U.
AU  - Oshima, N.
AU  - Petropavlovskikh, I.
AU  - Plummer, D.
AU  - Tsigaridis, K.
AU  - Tsyro, S.
AU  - Solberg, S.
AU  - Turnock, S. T
PY  - 2023
TI  - Arctic tropospheric ozone trends
JA  - Geophys. Res. Lett.
ER  -

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