{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:16:30Z","timestamp":1760235390775,"version":"build-2065373602"},"reference-count":52,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2021,8,24]],"date-time":"2021-08-24T00:00:00Z","timestamp":1629763200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BD\/146757\/2019"],"award-info":[{"award-number":["SFRH\/BD\/146757\/2019"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Atmosphere"],"abstract":"<jats:p>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 &lt; 10 \u00b5g\/m3). In order to identify heatwaves (1973\u20132019) in the region of Faro (Algarve) during the hot season (April\u2013September), the Excess Heat Factor (EHF) index was applied. The Mann\u2013Kendall 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\u20132019) 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\u20132019 period, and four distinct patterns were identified as the most prominent synoptic circulations promoting both heatwave conditions and North African dust over the Algarve.<\/jats:p>","DOI":"10.3390\/atmos12091090","type":"journal-article","created":{"date-parts":[[2021,8,24]],"date-time":"2021-08-24T22:12:22Z","timestamp":1629843142000},"page":"1090","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Assessing Heatwaves and Their Association with North African Dust Intrusions in the Algarve (Portugal)"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3401-115X","authenticated-orcid":false,"given":"Raquel","family":"Fernandes","sequence":"first","affiliation":[{"name":"Centre of Geographical Studies, Institute of Geography and Spatial Planning (IGOT), Universidade de Lisboa, 1600-276 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7272-3089","authenticated-orcid":false,"given":"Marcelo","family":"Fragoso","sequence":"additional","affiliation":[{"name":"Centre of Geographical Studies, Institute of Geography and Spatial Planning (IGOT), Universidade de Lisboa, 1600-276 Lisboa, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"994","DOI":"10.1126\/science.1098704","article-title":"More intense, more frequent, and longer lasting heat waves in the 21st century","volume":"305","author":"Meehl","year":"2004","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"242","DOI":"10.1016\/j.atmosres.2015.05.014","article-title":"Review on the scientific understanding of heatwaves\u2014Their measurement, driving mechanisms, and changes at the global scale","volume":"164","author":"Perkins","year":"2015","journal-title":"Atmos. 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