Academic Commons

Articles

Surface ozone variability and the jet position: Implications for projecting future air quality

Barnes, Elizabeth A.; Fiore, Arlene M.

Changes in the variability of surface ozone can affect the incidence of ozone pollution events. Analysis of multi-century simulations from a chemistry climate model shows that present-day summertime variability of surface ozone depends strongly on the jet stream position over eastern North America. This relationship holds on decadal time scales under projected climate change scenarios, in which surface ozone variability follows the robust poleward shift of the jet. The correlation between ozone and co-located temperature over eastern North America is also closely tied to the jet position, implying that local ozone-temperature relationships may change as the circulation changes. Jet position can thus serve as a dynamical predictor of future surface ozone variability over eastern North America and may also modulate ozone variability in other northern midlatitude regions.

Files

Also Published In

Title
Geophysical Research Letters
DOI
https://doi.org/10.1002/grl.50411

More About This Work

Academic Units
Lamont-Doherty Earth Observatory
Published Here
August 16, 2013
Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.