The long-term course of the annual total sunshine duration in Europe and changes in the phases of the thermohaline circulation in the North Atlantic (1901–2018).
The current study was based on sunshine duration data from 13 European stations during 1901–2018. It was found that the variability in the annual total sunshine duration (SD) over Europe is related to the variability in the component of the surface thermohaline circulation in the North Atlantic (NA...
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Adam Mickiewicz University Poznan
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ftamickiewiczojs:oai:ojs.pressto.amu.edu.pl:article/39830 2023-11-12T04:21:36+01:00 The long-term course of the annual total sunshine duration in Europe and changes in the phases of the thermohaline circulation in the North Atlantic (1901–2018). Marsz, Andrzej A. Styszyńska, Anna Matuszko, Dorota 2023-09-15 application/pdf http://pressto.amu.edu.pl/index.php/qg/article/view/39830 eng eng Adam Mickiewicz University Poznan http://pressto.amu.edu.pl/index.php/qg/article/view/39830/33621 http://pressto.amu.edu.pl/index.php/qg/article/view/39830 Prawa autorskie (c) 2023 ANDRZEJ A. MARSZ, ANNA STYSZYŃSKA, DOROTA MATUSZKO https://creativecommons.org/licenses/by/4.0 Quaestiones Geographicae; Vol. 42 No. 3 (2023); 49-56 Quaestiones Geographicae; Tom 42 Nr 3 (2023); 49-56 2081-6383 0137-477X sunshine duration North Atlantic thermohaline circulation mid-tropospheric circulation brightening dimming Europe info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Recenzowany artykuł 2023 ftamickiewiczojs 2023-10-31T00:07:31Z The current study was based on sunshine duration data from 13 European stations during 1901–2018. It was found that the variability in the annual total sunshine duration (SD) over Europe is related to the variability in the component of the surface thermohaline circulation in the North Atlantic (NA THC). Positive NA THC phases (the condition of the ‘warm’ North Atlantic) correspond to the periods of increased SD (brightening), while negative phases correspond to the periods of decreased SD (dimming). These relationships remain stable and statistically significant. The mechanism of these relationships is based on the influence of weakened or enhanced heat flow from the ocean to the atmosphere on the course of the mid-tropospheric circulation processes. In periods of positive thermohaline circulation in the North Atlantic (NA THC) phases, the share of long waves (macrotype W according to the Wangengejm–Girs classification) increases, with the occurrence of which the frequency of anticyclonic weather over Europe in creases, whereas in the periods of negative NA THC phases, the share of shorter waves (macrotypes E and C) increases, with the occurrence of which the frequency of cyclonic (frontal) weather over Europe increases. It is characterised by increased layer cloud cover, limiting the SD. Thus, along with changes in the thermal condition of the North Atlantic, the structure of cloud cover over Europe changes and becomes a factor regulating long-term changes in the annual total SD. Article in Journal/Newspaper North Atlantic North atlantic Thermohaline circulation Adam Mickiewicz University in Poznań: PRESSto |
institution |
Open Polar |
collection |
Adam Mickiewicz University in Poznań: PRESSto |
op_collection_id |
ftamickiewiczojs |
language |
English |
topic |
sunshine duration North Atlantic thermohaline circulation mid-tropospheric circulation brightening dimming Europe |
spellingShingle |
sunshine duration North Atlantic thermohaline circulation mid-tropospheric circulation brightening dimming Europe Marsz, Andrzej A. Styszyńska, Anna Matuszko, Dorota The long-term course of the annual total sunshine duration in Europe and changes in the phases of the thermohaline circulation in the North Atlantic (1901–2018). |
topic_facet |
sunshine duration North Atlantic thermohaline circulation mid-tropospheric circulation brightening dimming Europe |
description |
The current study was based on sunshine duration data from 13 European stations during 1901–2018. It was found that the variability in the annual total sunshine duration (SD) over Europe is related to the variability in the component of the surface thermohaline circulation in the North Atlantic (NA THC). Positive NA THC phases (the condition of the ‘warm’ North Atlantic) correspond to the periods of increased SD (brightening), while negative phases correspond to the periods of decreased SD (dimming). These relationships remain stable and statistically significant. The mechanism of these relationships is based on the influence of weakened or enhanced heat flow from the ocean to the atmosphere on the course of the mid-tropospheric circulation processes. In periods of positive thermohaline circulation in the North Atlantic (NA THC) phases, the share of long waves (macrotype W according to the Wangengejm–Girs classification) increases, with the occurrence of which the frequency of anticyclonic weather over Europe in creases, whereas in the periods of negative NA THC phases, the share of shorter waves (macrotypes E and C) increases, with the occurrence of which the frequency of cyclonic (frontal) weather over Europe increases. It is characterised by increased layer cloud cover, limiting the SD. Thus, along with changes in the thermal condition of the North Atlantic, the structure of cloud cover over Europe changes and becomes a factor regulating long-term changes in the annual total SD. |
format |
Article in Journal/Newspaper |
author |
Marsz, Andrzej A. Styszyńska, Anna Matuszko, Dorota |
author_facet |
Marsz, Andrzej A. Styszyńska, Anna Matuszko, Dorota |
author_sort |
Marsz, Andrzej A. |
title |
The long-term course of the annual total sunshine duration in Europe and changes in the phases of the thermohaline circulation in the North Atlantic (1901–2018). |
title_short |
The long-term course of the annual total sunshine duration in Europe and changes in the phases of the thermohaline circulation in the North Atlantic (1901–2018). |
title_full |
The long-term course of the annual total sunshine duration in Europe and changes in the phases of the thermohaline circulation in the North Atlantic (1901–2018). |
title_fullStr |
The long-term course of the annual total sunshine duration in Europe and changes in the phases of the thermohaline circulation in the North Atlantic (1901–2018). |
title_full_unstemmed |
The long-term course of the annual total sunshine duration in Europe and changes in the phases of the thermohaline circulation in the North Atlantic (1901–2018). |
title_sort |
long-term course of the annual total sunshine duration in europe and changes in the phases of the thermohaline circulation in the north atlantic (1901–2018). |
publisher |
Adam Mickiewicz University Poznan |
publishDate |
2023 |
url |
http://pressto.amu.edu.pl/index.php/qg/article/view/39830 |
genre |
North Atlantic North atlantic Thermohaline circulation |
genre_facet |
North Atlantic North atlantic Thermohaline circulation |
op_source |
Quaestiones Geographicae; Vol. 42 No. 3 (2023); 49-56 Quaestiones Geographicae; Tom 42 Nr 3 (2023); 49-56 2081-6383 0137-477X |
op_relation |
http://pressto.amu.edu.pl/index.php/qg/article/view/39830/33621 http://pressto.amu.edu.pl/index.php/qg/article/view/39830 |
op_rights |
Prawa autorskie (c) 2023 ANDRZEJ A. MARSZ, ANNA STYSZYŃSKA, DOROTA MATUSZKO https://creativecommons.org/licenses/by/4.0 |
_version_ |
1782336935715405824 |