Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region
Arctic Amplification of climate warming is caused by various feedback processes in the atmosphere-ocean-ice system and yields the strongest temperature increase during winter in the Arctic North Atlantic region. In our study, we attempt to quantify the advective contribution to the observed atmosphe...
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| Format: | Article |
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Wiley
2017-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2017/4928620 |
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| author | Sandro Dahlke Marion Maturilli |
| author_facet | Sandro Dahlke Marion Maturilli |
| author_sort | Sandro Dahlke |
| collection | DOAJ |
| description | Arctic Amplification of climate warming is caused by various feedback processes in the atmosphere-ocean-ice system and yields the strongest temperature increase during winter in the Arctic North Atlantic region. In our study, we attempt to quantify the advective contribution to the observed atmospheric warming in the Svalbard area. Based on radiosonde measurements from Ny-Ålesund, a strong dependence of the tropospheric temperature on the synoptic flow direction is revealed. Using FLEXTRA backward trajectories, an increase of advection from the lower latitude Atlantic region towards Ny-Ålesund is found that is attributed to a change in atmospheric circulation patterns. We find that about one-quarter (0.45 K per decade) of the observed atmospheric winter near surface warming trend in the North Atlantic region of the Arctic (2 K per decade) is due to increased advection of warm and moist air from the lower latitude Atlantic region, affecting the entire troposphere. |
| format | Article |
| id | doaj-art-dc5fde96d8b84daaa9c2aa17bfff11fa |
| institution | OA Journals |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
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| series | Advances in Meteorology |
| spelling | doaj-art-dc5fde96d8b84daaa9c2aa17bfff11fa2025-08-20T02:21:37ZengWileyAdvances in Meteorology1687-93091687-93172017-01-01201710.1155/2017/49286204928620Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic RegionSandro Dahlke0Marion Maturilli1Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam, GermanyAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam, GermanyArctic Amplification of climate warming is caused by various feedback processes in the atmosphere-ocean-ice system and yields the strongest temperature increase during winter in the Arctic North Atlantic region. In our study, we attempt to quantify the advective contribution to the observed atmospheric warming in the Svalbard area. Based on radiosonde measurements from Ny-Ålesund, a strong dependence of the tropospheric temperature on the synoptic flow direction is revealed. Using FLEXTRA backward trajectories, an increase of advection from the lower latitude Atlantic region towards Ny-Ålesund is found that is attributed to a change in atmospheric circulation patterns. We find that about one-quarter (0.45 K per decade) of the observed atmospheric winter near surface warming trend in the North Atlantic region of the Arctic (2 K per decade) is due to increased advection of warm and moist air from the lower latitude Atlantic region, affecting the entire troposphere.http://dx.doi.org/10.1155/2017/4928620 |
| spellingShingle | Sandro Dahlke Marion Maturilli Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region Advances in Meteorology |
| title | Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region |
| title_full | Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region |
| title_fullStr | Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region |
| title_full_unstemmed | Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region |
| title_short | Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region |
| title_sort | contribution of atmospheric advection to the amplified winter warming in the arctic north atlantic region |
| url | http://dx.doi.org/10.1155/2017/4928620 |
| work_keys_str_mv | AT sandrodahlke contributionofatmosphericadvectiontotheamplifiedwinterwarminginthearcticnorthatlanticregion AT marionmaturilli contributionofatmosphericadvectiontotheamplifiedwinterwarminginthearcticnorthatlanticregion |