Publication Abstracts

Clifton et al. 2017

Clifton, O.E., A.M. Fiore, J.W. Munger, S. Malyshev, L.W. Horowitz, E. Shevliakova, F. Paulot, L.T. Murray, and K.L. Griffin, 2017: Interannual variability in ozone removal by a temperate deciduous forest. Geophys. Res. Lett., 44, no. 1, 542-552, doi:10.1002/2016GL070923.

The ozone (O3) dry depositional sink and its contribution to observed variability in tropospheric O3 are both poorly understood. Distinguishing O3 uptake through plant stomata versus other pathways is relevant for quantifying the O3 influence on carbon and water cycles. We use a decade of O3, carbon, and energy eddy covariance (EC) fluxes at Harvard Forest to investigate interannual variability (IAV) in O3 deposition velocities (vd,O3). In each month, monthly mean vd,O3 for the highest year is twice that for the lowest. Two independent stomatal conductance estimates, based on either water vapor EC or gross primary productivity, vary little from year to year relative to canopy conductance. We conclude that nonstomatal deposition controls the substantial observed IAV in summertime vd,O3 during the 1990s over this deciduous forest. The absence of obvious relationships between meteorology and vd,O3 implies a need for additional long-term, high-quality measurements and further investigation of nonstomatal mechanisms.

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BibTeX Citation

  author={Clifton, O. E. and Fiore, A. M. and Munger, J. W. and Malyshev, S. and Horowitz, L. W. and Shevliakova, E. and Paulot, F. and Murray, L. T. and Griffin, K. L.},
  title={Interannual variability in ozone removal by a temperate deciduous forest},
  journal={Geophysical Research Letters},

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RIS Citation

ID  - cl09000j
AU  - Clifton, O. E.
AU  - Fiore, A. M.
AU  - Munger, J. W.
AU  - Malyshev, S.
AU  - Horowitz, L. W.
AU  - Shevliakova, E.
AU  - Paulot, F.
AU  - Murray, L. T.
AU  - Griffin, K. L.
PY  - 2017
TI  - Interannual variability in ozone removal by a temperate deciduous forest
JA  - Geophys. Res. Lett.
JO  - Geophysical Research Letters
VL  - 44
IS  - 1
SP  - 542
EP  - 552
DO  - 10.1002/2016GL070923
ER  -

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