Atmospheric bridge on orbital time scales
Large-scale atmospheric patterns are examined on orbital timescales using a climate model which explicitly resolves the atmosphere–ocean–sea ice dynamics. It is shown that, in contrast to boreal summer where the climate mainly follows the local radiative forcing, the boreal winter climate is strongl...
Published in: | Theoretical and Applied Climatology |
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Online Access: | https://oceanrep.geomar.de/id/eprint/44246/ https://oceanrep.geomar.de/id/eprint/44246/1/Lohmann2017_Article_AtmosphericBridgeOnOrbitalTime.pdf https://doi.org/10.1007/s00704-015-1725-2 |
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ftoceanrep:oai:oceanrep.geomar.de:44246 2023-05-15T15:01:05+02:00 Atmospheric bridge on orbital time scales Lohmann, Gerrit 2017 text https://oceanrep.geomar.de/id/eprint/44246/ https://oceanrep.geomar.de/id/eprint/44246/1/Lohmann2017_Article_AtmosphericBridgeOnOrbitalTime.pdf https://doi.org/10.1007/s00704-015-1725-2 en eng Springer https://oceanrep.geomar.de/id/eprint/44246/1/Lohmann2017_Article_AtmosphericBridgeOnOrbitalTime.pdf Lohmann, G. (2017) Atmospheric bridge on orbital time scales. Open Access Theoretical and Applied Climatology, 128 (3-4). pp. 709-718. DOI 10.1007/s00704-015-1725-2 <https://doi.org/10.1007/s00704-015-1725-2>. doi:10.1007/s00704-015-1725-2 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2017 ftoceanrep https://doi.org/10.1007/s00704-015-1725-2 2023-04-07T15:41:11Z Large-scale atmospheric patterns are examined on orbital timescales using a climate model which explicitly resolves the atmosphere–ocean–sea ice dynamics. It is shown that, in contrast to boreal summer where the climate mainly follows the local radiative forcing, the boreal winter climate is strongly determined by modulation of circulation modes linked to the Arctic Oscillation/North Atlantic Oscillation (AO/NAO) and the Northern/Southern Annular Modes. We find that during a positive phase of the AO/NAO the convection in the tropical Pacific is below normal. The related atmospheric circulation provides an atmospheric bridge for the precessional forcing inducing a non-uniform temperature anomalies with large amplitudes over the continents. We argue that this is important for mechanisms responsible for multi-millennial climate variability and glacial inception. Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Pacific Theoretical and Applied Climatology 128 3-4 709 718 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Large-scale atmospheric patterns are examined on orbital timescales using a climate model which explicitly resolves the atmosphere–ocean–sea ice dynamics. It is shown that, in contrast to boreal summer where the climate mainly follows the local radiative forcing, the boreal winter climate is strongly determined by modulation of circulation modes linked to the Arctic Oscillation/North Atlantic Oscillation (AO/NAO) and the Northern/Southern Annular Modes. We find that during a positive phase of the AO/NAO the convection in the tropical Pacific is below normal. The related atmospheric circulation provides an atmospheric bridge for the precessional forcing inducing a non-uniform temperature anomalies with large amplitudes over the continents. We argue that this is important for mechanisms responsible for multi-millennial climate variability and glacial inception. |
format |
Article in Journal/Newspaper |
author |
Lohmann, Gerrit |
spellingShingle |
Lohmann, Gerrit Atmospheric bridge on orbital time scales |
author_facet |
Lohmann, Gerrit |
author_sort |
Lohmann, Gerrit |
title |
Atmospheric bridge on orbital time scales |
title_short |
Atmospheric bridge on orbital time scales |
title_full |
Atmospheric bridge on orbital time scales |
title_fullStr |
Atmospheric bridge on orbital time scales |
title_full_unstemmed |
Atmospheric bridge on orbital time scales |
title_sort |
atmospheric bridge on orbital time scales |
publisher |
Springer |
publishDate |
2017 |
url |
https://oceanrep.geomar.de/id/eprint/44246/ https://oceanrep.geomar.de/id/eprint/44246/1/Lohmann2017_Article_AtmosphericBridgeOnOrbitalTime.pdf https://doi.org/10.1007/s00704-015-1725-2 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic North Atlantic North Atlantic oscillation Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/44246/1/Lohmann2017_Article_AtmosphericBridgeOnOrbitalTime.pdf Lohmann, G. (2017) Atmospheric bridge on orbital time scales. Open Access Theoretical and Applied Climatology, 128 (3-4). pp. 709-718. DOI 10.1007/s00704-015-1725-2 <https://doi.org/10.1007/s00704-015-1725-2>. doi:10.1007/s00704-015-1725-2 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00704-015-1725-2 |
container_title |
Theoretical and Applied Climatology |
container_volume |
128 |
container_issue |
3-4 |
container_start_page |
709 |
op_container_end_page |
718 |
_version_ |
1766333133387464704 |