The impact of Atlantic Multidecadal Variability on Baltic Sea temperatures limited to winter
Abstract We analyze multidecadal temperature fluctuations of the Atlantic Ocean and their influence on Northern Europe, focusing on the Baltic Sea, without a priori assuming a linear relationship of this teleconnection. Instead, we use the method of low-frequency component analysis to identify modes...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-06-01
|
| Series: | npj Climate and Atmospheric Science |
| Online Access: | https://doi.org/10.1038/s41612-023-00373-8 |
| _version_ | 1797806776005951488 |
|---|---|
| author | Florian Börgel Matthias Gröger H. E. Markus Meier Cyril Dutheil Hagen Radtke Leonard Borchert |
| author_facet | Florian Börgel Matthias Gröger H. E. Markus Meier Cyril Dutheil Hagen Radtke Leonard Borchert |
| author_sort | Florian Börgel |
| collection | DOAJ |
| description | Abstract We analyze multidecadal temperature fluctuations of the Atlantic Ocean and their influence on Northern Europe, focusing on the Baltic Sea, without a priori assuming a linear relationship of this teleconnection. Instead, we use the method of low-frequency component analysis to identify modes of multidecadal variability in the Baltic Sea temperature signal and relate this signal to the Atlantic climate variability. Disentangling the seasonal impact reveals that a large fraction of the variability in Baltic Sea winter temperatures is related to multidecadal temperature fluctuations in the North Atlantic, known as Atlantic Multidecadal Variability (AMV). The strong winter response can be linked to the interaction between the North Atlantic Oscillation and the AMV and is maintained by oceanic inertia. In contrast, the AMV does not influence the Baltic Sea’s summer and spring water temperatures. |
| first_indexed | 2024-03-13T06:12:29Z |
| format | Article |
| id | doaj.art-5b67f43a86964eabae8133e950073ea0 |
| institution | Directory Open Access Journal |
| issn | 2397-3722 |
| language | English |
| last_indexed | 2024-03-13T06:12:29Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Climate and Atmospheric Science |
| spelling | doaj.art-5b67f43a86964eabae8133e950073ea02023-06-11T11:09:41ZengNature Portfolionpj Climate and Atmospheric Science2397-37222023-06-01611910.1038/s41612-023-00373-8The impact of Atlantic Multidecadal Variability on Baltic Sea temperatures limited to winterFlorian Börgel0Matthias Gröger1H. E. Markus Meier2Cyril Dutheil3Hagen Radtke4Leonard Borchert5Leibniz Institute for Baltic Sea Research WarnemündeLeibniz Institute for Baltic Sea Research WarnemündeLeibniz Institute for Baltic Sea Research WarnemündeLeibniz Institute for Baltic Sea Research WarnemündeLeibniz Institute for Baltic Sea Research WarnemündeCenter for Earth System Research and Sustainability CEN, Universität HamburgAbstract We analyze multidecadal temperature fluctuations of the Atlantic Ocean and their influence on Northern Europe, focusing on the Baltic Sea, without a priori assuming a linear relationship of this teleconnection. Instead, we use the method of low-frequency component analysis to identify modes of multidecadal variability in the Baltic Sea temperature signal and relate this signal to the Atlantic climate variability. Disentangling the seasonal impact reveals that a large fraction of the variability in Baltic Sea winter temperatures is related to multidecadal temperature fluctuations in the North Atlantic, known as Atlantic Multidecadal Variability (AMV). The strong winter response can be linked to the interaction between the North Atlantic Oscillation and the AMV and is maintained by oceanic inertia. In contrast, the AMV does not influence the Baltic Sea’s summer and spring water temperatures.https://doi.org/10.1038/s41612-023-00373-8 |
| spellingShingle | Florian Börgel Matthias Gröger H. E. Markus Meier Cyril Dutheil Hagen Radtke Leonard Borchert The impact of Atlantic Multidecadal Variability on Baltic Sea temperatures limited to winter npj Climate and Atmospheric Science |
| title | The impact of Atlantic Multidecadal Variability on Baltic Sea temperatures limited to winter |
| title_full | The impact of Atlantic Multidecadal Variability on Baltic Sea temperatures limited to winter |
| title_fullStr | The impact of Atlantic Multidecadal Variability on Baltic Sea temperatures limited to winter |
| title_full_unstemmed | The impact of Atlantic Multidecadal Variability on Baltic Sea temperatures limited to winter |
| title_short | The impact of Atlantic Multidecadal Variability on Baltic Sea temperatures limited to winter |
| title_sort | impact of atlantic multidecadal variability on baltic sea temperatures limited to winter |
| url | https://doi.org/10.1038/s41612-023-00373-8 |
| work_keys_str_mv | AT florianborgel theimpactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT matthiasgroger theimpactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT hemarkusmeier theimpactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT cyrildutheil theimpactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT hagenradtke theimpactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT leonardborchert theimpactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT florianborgel impactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT matthiasgroger impactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT hemarkusmeier impactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT cyrildutheil impactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT hagenradtke impactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter AT leonardborchert impactofatlanticmultidecadalvariabilityonbalticseatemperatureslimitedtowinter |