Mediterranean precipitation and its relationship with sea level pressure patterns
The relationship between Mediterranean precipitation and North Atlantic and European sea level pressure fields has been studied using statistical techniques to investigate the variability within the data. A principal component analysis shows the major winter precipitation variability is described by...
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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ftdoajarticles:oai:doaj.org/article:3348494dde41494b8fc95aced339a070 2023-05-15T17:30:50+02:00 Mediterranean precipitation and its relationship with sea level pressure patterns D. N. Green R. Thompson 2004-06-01T00:00:00Z https://doi.org/10.4401/ag-3364 https://doaj.org/article/3348494dde41494b8fc95aced339a070 EN eng Istituto Nazionale di Geofisica e Vulcanologia (INGV) http://www.annalsofgeophysics.eu/index.php/annals/article/view/3364 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X doi:10.4401/ag-3364 1593-5213 2037-416X https://doaj.org/article/3348494dde41494b8fc95aced339a070 Annals of Geophysics, Vol 47, Iss 5 (2004) Mediterranean precipitation principal component canonical correlation trajectory Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 article 2004 ftdoajarticles https://doi.org/10.4401/ag-3364 2022-12-31T14:28:07Z The relationship between Mediterranean precipitation and North Atlantic and European sea level pressure fields has been studied using statistical techniques to investigate the variability within the data. A principal component analysis shows the major winter precipitation variability is described by a see-saw fluctuation between the Western and Eastern Mediterranean. The pressure-precipitation relationships indicate that a highly variable, pressure region situated to the south of Britain dominates this major precipitation pattern. The large-scale pressure fields which facilitate the precipitation patterns have been isolated using a canonical correlation analysis. Although the well-known major pressure centres of action in the North Atlantic are important, pressure changes in the east are found to also control the transport of moisture across the Mediterranean to a large degree, as the presence of a large high over Kazakhstan causes meridonial flow and impedes the passage of moisture across the Mediterranean. The pressure-precipitation relationships are found to be very consistent over multi-decadal,seasonal, monthly and daily time-scales with trajectory analysis confirming many of the features of the average seasonal pressure charts. This steadiness and regularity indicates that the Mediterranean precipitation teleconnection is a robust phenomenon that is affected by large-scale pressure changes to both the east and west. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Annals of Geophysics 47 5 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Mediterranean precipitation principal component canonical correlation trajectory Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Mediterranean precipitation principal component canonical correlation trajectory Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 D. N. Green R. Thompson Mediterranean precipitation and its relationship with sea level pressure patterns |
topic_facet |
Mediterranean precipitation principal component canonical correlation trajectory Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
description |
The relationship between Mediterranean precipitation and North Atlantic and European sea level pressure fields has been studied using statistical techniques to investigate the variability within the data. A principal component analysis shows the major winter precipitation variability is described by a see-saw fluctuation between the Western and Eastern Mediterranean. The pressure-precipitation relationships indicate that a highly variable, pressure region situated to the south of Britain dominates this major precipitation pattern. The large-scale pressure fields which facilitate the precipitation patterns have been isolated using a canonical correlation analysis. Although the well-known major pressure centres of action in the North Atlantic are important, pressure changes in the east are found to also control the transport of moisture across the Mediterranean to a large degree, as the presence of a large high over Kazakhstan causes meridonial flow and impedes the passage of moisture across the Mediterranean. The pressure-precipitation relationships are found to be very consistent over multi-decadal,seasonal, monthly and daily time-scales with trajectory analysis confirming many of the features of the average seasonal pressure charts. This steadiness and regularity indicates that the Mediterranean precipitation teleconnection is a robust phenomenon that is affected by large-scale pressure changes to both the east and west. |
format |
Article in Journal/Newspaper |
author |
D. N. Green R. Thompson |
author_facet |
D. N. Green R. Thompson |
author_sort |
D. N. Green |
title |
Mediterranean precipitation and its relationship with sea level pressure patterns |
title_short |
Mediterranean precipitation and its relationship with sea level pressure patterns |
title_full |
Mediterranean precipitation and its relationship with sea level pressure patterns |
title_fullStr |
Mediterranean precipitation and its relationship with sea level pressure patterns |
title_full_unstemmed |
Mediterranean precipitation and its relationship with sea level pressure patterns |
title_sort |
mediterranean precipitation and its relationship with sea level pressure patterns |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
publishDate |
2004 |
url |
https://doi.org/10.4401/ag-3364 https://doaj.org/article/3348494dde41494b8fc95aced339a070 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Annals of Geophysics, Vol 47, Iss 5 (2004) |
op_relation |
http://www.annalsofgeophysics.eu/index.php/annals/article/view/3364 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X doi:10.4401/ag-3364 1593-5213 2037-416X https://doaj.org/article/3348494dde41494b8fc95aced339a070 |
op_doi |
https://doi.org/10.4401/ag-3364 |
container_title |
Annals of Geophysics |
container_volume |
47 |
container_issue |
5 |
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1766127922048925696 |