Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate
We present observational evidence for linkages between extreme Arctic stratospheric ozone anomalies in March and Northern Hemisphere tropospheric climate in spring (March–April). Springs characterized by low Arctic ozone anomalies in March are associated with a stronger, colder polar vortex and circ...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | en_US |
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IOP Publishing
2017
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| Online Access: | http://hdl.handle.net/1721.1/109888 https://orcid.org/0000-0002-2020-7581 |
| _version_ | 1811083258018922496 |
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| author | Calvo, Natalia Thompson, David W J Ivy, Diane J Solomon, Susan |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Calvo, Natalia Thompson, David W J Ivy, Diane J Solomon, Susan |
| author_sort | Calvo, Natalia |
| collection | MIT |
| description | We present observational evidence for linkages between extreme Arctic stratospheric ozone anomalies in March and Northern Hemisphere tropospheric climate in spring (March–April). Springs characterized by low Arctic ozone anomalies in March are associated with a stronger, colder polar vortex and circulation anomalies consistent with the positive polarity of the Northern Annular Mode/North Atlantic Oscillation in March and April. The associated spring tropospheric circulation anomalies indicate a poleward shift of zonal winds at 500 hPa over the North Atlantic. Furthermore, correlations between March Arctic ozone and March–April surface temperatures reveal certain regions where a surprisingly large fraction of the interannual variability in spring surface temperatures is associated with interannual variability in ozone. We also find that years with low March Arctic ozone in the stratosphere display surface maximum daily temperatures in March–April that are colder than normal over southeastern Europe and southern Asia, but warmer than normal over northern Asia, adding to the warming from increasing well-mixed greenhouse gases in those locations. The results shown here do not establish causality, but nevertheless suggest that March stratospheric ozone is a useful indicator of spring averaged (March–April) tropospheric climate in certain Northern Hemispheric regions. |
| first_indexed | 2024-09-23T12:30:17Z |
| format | Article |
| id | mit-1721.1/109888 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:30:17Z |
| publishDate | 2017 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1098882022-09-28T08:09:59Z Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate Calvo, Natalia Thompson, David W J Ivy, Diane J Solomon, Susan Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Ivy, Diane J Solomon, Susan We present observational evidence for linkages between extreme Arctic stratospheric ozone anomalies in March and Northern Hemisphere tropospheric climate in spring (March–April). Springs characterized by low Arctic ozone anomalies in March are associated with a stronger, colder polar vortex and circulation anomalies consistent with the positive polarity of the Northern Annular Mode/North Atlantic Oscillation in March and April. The associated spring tropospheric circulation anomalies indicate a poleward shift of zonal winds at 500 hPa over the North Atlantic. Furthermore, correlations between March Arctic ozone and March–April surface temperatures reveal certain regions where a surprisingly large fraction of the interannual variability in spring surface temperatures is associated with interannual variability in ozone. We also find that years with low March Arctic ozone in the stratosphere display surface maximum daily temperatures in March–April that are colder than normal over southeastern Europe and southern Asia, but warmer than normal over northern Asia, adding to the warming from increasing well-mixed greenhouse gases in those locations. The results shown here do not establish causality, but nevertheless suggest that March stratospheric ozone is a useful indicator of spring averaged (March–April) tropospheric climate in certain Northern Hemispheric regions. National Science Foundation (U.S.) (AGS-1539972) 2017-06-15T14:49:04Z 2017-06-15T14:49:04Z 2017-02 2016-12 Article http://purl.org/eprint/type/JournalArticle 1748-9326 http://hdl.handle.net/1721.1/109888 Ivy, Diane J; Solomon, Susan; Calvo, Natalia andThompson, David W J.“Observed Connections of Arctic Stratospheric Ozone Extremes to Northern Hemisphere Surface Climate.” Environmental Research Letters 12, no. 2 (February 2017): 024004 © 2017 IOP Publishing Ltd https://orcid.org/0000-0002-2020-7581 en_US http://dx.doi.org/10.1088/1748-9326/aa57a4 Environmental Research Letters Creative Commons Attribution 3.0 Unported license http://creativecommons.org/licenses/by/3.0/ application/pdf IOP Publishing IOP Publishing |
| spellingShingle | Calvo, Natalia Thompson, David W J Ivy, Diane J Solomon, Susan Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate |
| title | Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate |
| title_full | Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate |
| title_fullStr | Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate |
| title_full_unstemmed | Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate |
| title_short | Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate |
| title_sort | observed connections of arctic stratospheric ozone extremes to northern hemisphere surface climate |
| url | http://hdl.handle.net/1721.1/109888 https://orcid.org/0000-0002-2020-7581 |
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