Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/50071 |
Resumo: | Heatwaves are an extreme meteorological event in which affected populations may also be exposed to deteriorated air quality conditions due to the increase in air pollutant concentrations, such as PM10 (particulate matter < 10 µg/m3). In order to identify heatwaves (1973–2019) in the region of Faro (Algarve) during the hot season (April–September), the Excess Heat Factor (EHF) index was applied. The Mann–Kendall test revealed an upward trend in three heatwave metrics in Faro, and the trend of accumulated heat load (EHF load) was also positive as would be expected, but its signal was not statistically significant. An inventory of North African dust events (2006–2019) was made, and their simultaneous occurrence with heatwaves was assessed, pointing to only 20% of dust events of the Sahara occurring simultaneously with heatwave days. A cluster analysis was conducted on daily geopotential height fields at 850 hPa level over the 2006–2019 period, and four distinct patterns were identified as the most prominent synoptic circulations promoting both heatwave conditions and North African dust over the Algarve |
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Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal)Atmospheric patternsCluster analysisExcess Heat FactorPM10Saharan dust eventsHeatwaves are an extreme meteorological event in which affected populations may also be exposed to deteriorated air quality conditions due to the increase in air pollutant concentrations, such as PM10 (particulate matter < 10 µg/m3). In order to identify heatwaves (1973–2019) in the region of Faro (Algarve) during the hot season (April–September), the Excess Heat Factor (EHF) index was applied. The Mann–Kendall test revealed an upward trend in three heatwave metrics in Faro, and the trend of accumulated heat load (EHF load) was also positive as would be expected, but its signal was not statistically significant. An inventory of North African dust events (2006–2019) was made, and their simultaneous occurrence with heatwaves was assessed, pointing to only 20% of dust events of the Sahara occurring simultaneously with heatwave days. A cluster analysis was conducted on daily geopotential height fields at 850 hPa level over the 2006–2019 period, and four distinct patterns were identified as the most prominent synoptic circulations promoting both heatwave conditions and North African dust over the AlgarveMDPIRepositório da Universidade de LisboaFernandes, RaquelFragoso, Marcelo2021-11-02T11:16:20Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/50071engFernandes, R., & Fragoso, M. (2021). Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal). Atmosphere, 12(9), 1090. https://doi.org/10.3390/atmos1209109010.3390/atmos120910902073-4433info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:54:07Zoai:repositorio.ul.pt:10451/50071Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:01:35.672283Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal) |
title |
Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal) |
spellingShingle |
Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal) Fernandes, Raquel Atmospheric patterns Cluster analysis Excess Heat Factor PM10 Saharan dust events |
title_short |
Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal) |
title_full |
Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal) |
title_fullStr |
Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal) |
title_full_unstemmed |
Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal) |
title_sort |
Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal) |
author |
Fernandes, Raquel |
author_facet |
Fernandes, Raquel Fragoso, Marcelo |
author_role |
author |
author2 |
Fragoso, Marcelo |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Fernandes, Raquel Fragoso, Marcelo |
dc.subject.por.fl_str_mv |
Atmospheric patterns Cluster analysis Excess Heat Factor PM10 Saharan dust events |
topic |
Atmospheric patterns Cluster analysis Excess Heat Factor PM10 Saharan dust events |
description |
Heatwaves are an extreme meteorological event in which affected populations may also be exposed to deteriorated air quality conditions due to the increase in air pollutant concentrations, such as PM10 (particulate matter < 10 µg/m3). In order to identify heatwaves (1973–2019) in the region of Faro (Algarve) during the hot season (April–September), the Excess Heat Factor (EHF) index was applied. The Mann–Kendall test revealed an upward trend in three heatwave metrics in Faro, and the trend of accumulated heat load (EHF load) was also positive as would be expected, but its signal was not statistically significant. An inventory of North African dust events (2006–2019) was made, and their simultaneous occurrence with heatwaves was assessed, pointing to only 20% of dust events of the Sahara occurring simultaneously with heatwave days. A cluster analysis was conducted on daily geopotential height fields at 850 hPa level over the 2006–2019 period, and four distinct patterns were identified as the most prominent synoptic circulations promoting both heatwave conditions and North African dust over the Algarve |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-02T11:16:20Z 2021 2021-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/50071 |
url |
http://hdl.handle.net/10451/50071 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Fernandes, R., & Fragoso, M. (2021). Assessing heatwaves and their association with North African dust intrusions in the Algarve (Portugal). Atmosphere, 12(9), 1090. https://doi.org/10.3390/atmos12091090 10.3390/atmos12091090 2073-4433 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134564588716032 |