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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ftdoajarticles:oai:doaj.org/article:82ce1257269544589258cfff5c0968e0 2023-12-03T10:26:22+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 2023-06-01T00:00:00Z https://doi.org/10.14746/quageo-2023-0023 https://doaj.org/article/82ce1257269544589258cfff5c0968e0 EN eng Sciendo https://doi.org/10.14746/quageo-2023-0023 https://doaj.org/toc/2081-6383 2081-6383 doi:10.14746/quageo-2023-0023 https://doaj.org/article/82ce1257269544589258cfff5c0968e0 Quaestiones Geographicae, Vol 42, Iss 2, Pp 49-65 (2023) sunshine duration north atlantic thermohaline circulation mid-tropospheric circulation brightening dimming europe Geography (General) G1-922 article 2023 ftdoajarticles https://doi.org/10.14746/quageo-2023-0023 2023-11-05T01:43:26Z 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 increases, 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 Directory of Open Access Journals: DOAJ Articles Quaestiones Geographicae 42 3 49 56 |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
sunshine duration north atlantic thermohaline circulation mid-tropospheric circulation brightening dimming europe Geography (General) G1-922 |
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sunshine duration north atlantic thermohaline circulation mid-tropospheric circulation brightening dimming europe Geography (General) G1-922 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 Geography (General) G1-922 |
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 increases, 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 |
Sciendo |
publishDate |
2023 |
url |
https://doi.org/10.14746/quageo-2023-0023 https://doaj.org/article/82ce1257269544589258cfff5c0968e0 |
genre |
North Atlantic North atlantic Thermohaline circulation |
genre_facet |
North Atlantic North atlantic Thermohaline circulation |
op_source |
Quaestiones Geographicae, Vol 42, Iss 2, Pp 49-65 (2023) |
op_relation |
https://doi.org/10.14746/quageo-2023-0023 https://doaj.org/toc/2081-6383 2081-6383 doi:10.14746/quageo-2023-0023 https://doaj.org/article/82ce1257269544589258cfff5c0968e0 |
op_doi |
https://doi.org/10.14746/quageo-2023-0023 |
container_title |
Quaestiones Geographicae |
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42 |
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3 |
container_start_page |
49 |
op_container_end_page |
56 |
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1784275628226248704 |