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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Online Access: | https://doi.org/10.1155/2017/4928620 |
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fthindawi:oai:hindawi.com:10.1155/2017/4928620 2023-05-15T14:39:30+02:00 Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region Sandro Dahlke Marion Maturilli 2017 https://doi.org/10.1155/2017/4928620 en eng Advances in Meteorology https://doi.org/10.1155/2017/4928620 Copyright © 2017 Sandro Dahlke and Marion Maturilli. Research Article 2017 fthindawi https://doi.org/10.1155/2017/4928620 2019-05-26T09:15:32Z 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. Article in Journal/Newspaper Arctic North Atlantic Ny Ålesund Ny-Ålesund Svalbard Hindawi Publishing Corporation Arctic Ny-Ålesund Svalbard Advances in Meteorology 2017 1 8 |
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Open Polar |
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Hindawi Publishing Corporation |
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fthindawi |
language |
English |
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 in Journal/Newspaper |
author |
Sandro Dahlke Marion Maturilli |
spellingShingle |
Sandro Dahlke Marion Maturilli Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region |
author_facet |
Sandro Dahlke Marion Maturilli |
author_sort |
Sandro Dahlke |
title |
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_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_sort |
contribution of atmospheric advection to the amplified winter warming in the arctic north atlantic region |
publisher |
Advances in Meteorology |
publishDate |
2017 |
url |
https://doi.org/10.1155/2017/4928620 |
geographic |
Arctic Ny-Ålesund Svalbard |
geographic_facet |
Arctic Ny-Ålesund Svalbard |
genre |
Arctic North Atlantic Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic North Atlantic Ny Ålesund Ny-Ålesund Svalbard |
op_relation |
https://doi.org/10.1155/2017/4928620 |
op_rights |
Copyright © 2017 Sandro Dahlke and Marion Maturilli. |
op_doi |
https://doi.org/10.1155/2017/4928620 |
container_title |
Advances in Meteorology |
container_volume |
2017 |
container_start_page |
1 |
op_container_end_page |
8 |
_version_ |
1766311486118952960 |