Variations in Monthly Maximum Gust Speed at St Mary's, Isles of Scilly (UK)
Abstract Long‐term variations in maximum gust speeds have been analyzed using wind measurements recorded at St Mary's, Isles of Scilly, UK, and possible drivers of recent changes have been investigated. A rigorous homogenization procedure has been applied to the wind records to remove discontin...
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American Geophysical Union (AGU)
2022
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ftdoajarticles:oai:doaj.org/article:b9a92d6f6c274646b56fd8f60ccd83b7 2023-05-15T17:34:58+02:00 Variations in Monthly Maximum Gust Speed at St Mary's, Isles of Scilly (UK) Marinella Masina Dina D’Ayala Alessandro Antonini 2022-11-01T00:00:00Z https://doi.org/10.1029/2022EA002380 https://doaj.org/article/b9a92d6f6c274646b56fd8f60ccd83b7 EN eng American Geophysical Union (AGU) https://doi.org/10.1029/2022EA002380 https://doaj.org/toc/2333-5084 2333-5084 doi:10.1029/2022EA002380 https://doaj.org/article/b9a92d6f6c274646b56fd8f60ccd83b7 Earth and Space Science, Vol 9, Iss 11, Pp n/a-n/a (2022) gust speed data homogenization trend wind stilling climate indices Isles of Scilly Astronomy QB1-991 Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.1029/2022EA002380 2022-12-30T19:37:47Z Abstract Long‐term variations in maximum gust speeds have been analyzed using wind measurements recorded at St Mary's, Isles of Scilly, UK, and possible drivers of recent changes have been investigated. A rigorous homogenization procedure has been applied to the wind records to remove discontinuities mainly caused by non‐climatic changes. Trends in magnitude of the homogenized annual and monthly maximum gust speeds have been subsequently estimated. A significant (p < 0.10) decreasing trend of −0.102 m s−1/10 years is exhibited by the annual maximum gust speeds over the period 1928–2011, while a non‐significant (p > 0.10) positive trend characterizes the entire period 1928–2020 of wind measurements. A turning point has been detected in the monthly maximum gust speed series in 2012, followed by a trend reversal. Distinctive differences in the gust trend pattern have been observed among the seasons, with increasing trend in summer, and winter gust speeds exhibiting decline in 1969–2011 and strengthening since 2012. Variations in the monthly maximum gust speeds appear closely related to changes in air temperature and latitudinal pressure gradients. Furthermore, the monthly maximum gust speeds show significant correlation with the main oceanic‐atmospheric circulation patterns in the North Atlantic region. A synergistic effect among the phases of the dominant patterns of climate variability appears to explain the observed decline and recovery trends in winter gusts. Summer gust speeds show a positive correlation with the global land‐ocean temperature deviations from the corresponding 1951–1980 base period mean. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Earth and Space Science 9 11 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
gust speed data homogenization trend wind stilling climate indices Isles of Scilly Astronomy QB1-991 Geology QE1-996.5 |
spellingShingle |
gust speed data homogenization trend wind stilling climate indices Isles of Scilly Astronomy QB1-991 Geology QE1-996.5 Marinella Masina Dina D’Ayala Alessandro Antonini Variations in Monthly Maximum Gust Speed at St Mary's, Isles of Scilly (UK) |
topic_facet |
gust speed data homogenization trend wind stilling climate indices Isles of Scilly Astronomy QB1-991 Geology QE1-996.5 |
description |
Abstract Long‐term variations in maximum gust speeds have been analyzed using wind measurements recorded at St Mary's, Isles of Scilly, UK, and possible drivers of recent changes have been investigated. A rigorous homogenization procedure has been applied to the wind records to remove discontinuities mainly caused by non‐climatic changes. Trends in magnitude of the homogenized annual and monthly maximum gust speeds have been subsequently estimated. A significant (p < 0.10) decreasing trend of −0.102 m s−1/10 years is exhibited by the annual maximum gust speeds over the period 1928–2011, while a non‐significant (p > 0.10) positive trend characterizes the entire period 1928–2020 of wind measurements. A turning point has been detected in the monthly maximum gust speed series in 2012, followed by a trend reversal. Distinctive differences in the gust trend pattern have been observed among the seasons, with increasing trend in summer, and winter gust speeds exhibiting decline in 1969–2011 and strengthening since 2012. Variations in the monthly maximum gust speeds appear closely related to changes in air temperature and latitudinal pressure gradients. Furthermore, the monthly maximum gust speeds show significant correlation with the main oceanic‐atmospheric circulation patterns in the North Atlantic region. A synergistic effect among the phases of the dominant patterns of climate variability appears to explain the observed decline and recovery trends in winter gusts. Summer gust speeds show a positive correlation with the global land‐ocean temperature deviations from the corresponding 1951–1980 base period mean. |
format |
Article in Journal/Newspaper |
author |
Marinella Masina Dina D’Ayala Alessandro Antonini |
author_facet |
Marinella Masina Dina D’Ayala Alessandro Antonini |
author_sort |
Marinella Masina |
title |
Variations in Monthly Maximum Gust Speed at St Mary's, Isles of Scilly (UK) |
title_short |
Variations in Monthly Maximum Gust Speed at St Mary's, Isles of Scilly (UK) |
title_full |
Variations in Monthly Maximum Gust Speed at St Mary's, Isles of Scilly (UK) |
title_fullStr |
Variations in Monthly Maximum Gust Speed at St Mary's, Isles of Scilly (UK) |
title_full_unstemmed |
Variations in Monthly Maximum Gust Speed at St Mary's, Isles of Scilly (UK) |
title_sort |
variations in monthly maximum gust speed at st mary's, isles of scilly (uk) |
publisher |
American Geophysical Union (AGU) |
publishDate |
2022 |
url |
https://doi.org/10.1029/2022EA002380 https://doaj.org/article/b9a92d6f6c274646b56fd8f60ccd83b7 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Earth and Space Science, Vol 9, Iss 11, Pp n/a-n/a (2022) |
op_relation |
https://doi.org/10.1029/2022EA002380 https://doaj.org/toc/2333-5084 2333-5084 doi:10.1029/2022EA002380 https://doaj.org/article/b9a92d6f6c274646b56fd8f60ccd83b7 |
op_doi |
https://doi.org/10.1029/2022EA002380 |
container_title |
Earth and Space Science |
container_volume |
9 |
container_issue |
11 |
_version_ |
1766133965951860736 |