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Prediction of Northern Hemisphere regional surface temperatures using stratospheric ozone information

Author(s)
Stone, Kane Adam; Solomon, Susan; Kinnison, Douglas E.; Baggett, Cory F.; Barnes, Elizabeth A.
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
Correlations between springtime stratospheric ozone extremes and subsequent surface temperatures have been previously reported for both models and observations at particular locations in the Northern Hemisphere. Here we quantify for the first time the potential use of ozone information for Northern Hemisphere seasonal forecasts, using observations and a nine-member chemistry climate model ensemble. The ensemble composite correlations between March total column ozone (TCO) and April surface temperatures display a similar structure to observations, but with slightly lower correlation magnitudes. This is likely due to the larger number of cases smoothing out sampling error in the pattern, which is visible in the difference between correlations calculated from individual ensemble members. Using a linear regression model with March TCO as the predictor, predictions of the following April surface temperatures in regions that show large correlations are possible up to 4 years following the regression model end date in individual ensemble members, and up to 6 years in observations. We create an empirical forecast model to predict the sign of the observed as well as the modeled surface temperature anomalies using March TCO. Through a leave-three-years-out cross-validation method, we show that March TCO can forecast the sign of the April surface temperature anomalies well in parts of Eurasia that show the lowest model internal variability. ©2019. American Geophysical Union. All Rights Reserved.
Date issued
2019-03
URI
https://hdl.handle.net/1721.1/127177
Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Journal
Journal of Geophysical Research: Atmospheres
Publisher
American Geophysical Union (AGU)
Citation
Stone, Kane A. et al., "Prediction of Northern Hemisphere Regional Surface Temperatures Using Stratospheric Ozone Information." Journal of geophysical research. Atmospheres 124, 12 (June 2019): p. 5922-33 doi. 10.1029/2018JD029626 ©2019 Authors
Version: Final published version
ISSN
2169-8996

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