Long-term variability of dust events in Iceland (1949–2011)
The long-term frequency of atmospheric dust observations was investigated for the southern part of Iceland and interpreted together with earlier results obtained from northeastern (NE) Iceland (Dagsson-Waldhauserova et al., 2013). In total, over 34 dust days per year on average occurred in Iceland b...
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ftdoajarticles:oai:doaj.org/article:0208d14cb04e4fab883f86c3b7a8b5ea 2023-05-15T15:11:09+02:00 Long-term variability of dust events in Iceland (1949–2011) P. Dagsson-Waldhauserova O. Arnalds H. Olafsson 2014-12-01T00:00:00Z https://doi.org/10.5194/acp-14-13411-2014 https://doaj.org/article/0208d14cb04e4fab883f86c3b7a8b5ea EN eng Copernicus Publications http://www.atmos-chem-phys.net/14/13411/2014/acp-14-13411-2014.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-14-13411-2014 https://doaj.org/article/0208d14cb04e4fab883f86c3b7a8b5ea Atmospheric Chemistry and Physics, Vol 14, Iss 24, Pp 13411-13422 (2014) Physics QC1-999 Chemistry QD1-999 article 2014 ftdoajarticles https://doi.org/10.5194/acp-14-13411-2014 2023-01-08T01:26:36Z The long-term frequency of atmospheric dust observations was investigated for the southern part of Iceland and interpreted together with earlier results obtained from northeastern (NE) Iceland (Dagsson-Waldhauserova et al., 2013). In total, over 34 dust days per year on average occurred in Iceland based on conventionally used synoptic codes for dust observations. However, frequent volcanic eruptions, with the re-suspension of volcanic materials and dust haze, increased the number of dust events fourfold (135 dust days annually). The position of the Icelandic Low determined whether dust events occurred in the NE (16.4 dust days annually) or in the southern (S) part of Iceland (about 18 dust days annually). The decade with the most frequent dust days in S Iceland was the 1960s, but the 2000s in NE Iceland. A total of 32 severe dust storms (visibility < 500 m) were observed in Iceland with the highest frequency of events during the 2000s in S Iceland. The Arctic dust events (NE Iceland) were typically warm, occurring during summer/autumn (May–September) and during mild southwesterly winds, while the subarctic dust events (S Iceland) were mainly cold, occurring during winter/spring (March–May) and during strong northeasterly winds. About half of the dust events in S Iceland occurred in winter or at sub-zero temperatures. A good correlation was found between particulate matter (PM 10 ) concentrations and visibility during dust observations at the stations Vík and Stórhöfði. This study shows that Iceland is among the dustiest areas of the world and that dust is emitted year-round. Article in Journal/Newspaper Arctic Iceland Subarctic Directory of Open Access Journals: DOAJ Articles Arctic Stórhöfði ENVELOPE(-20.288,-20.288,63.399,63.399) Vík ENVELOPE(-18.762,-18.762,66.136,66.136) Atmospheric Chemistry and Physics 14 24 13411 13422 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 P. Dagsson-Waldhauserova O. Arnalds H. Olafsson Long-term variability of dust events in Iceland (1949–2011) |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
The long-term frequency of atmospheric dust observations was investigated for the southern part of Iceland and interpreted together with earlier results obtained from northeastern (NE) Iceland (Dagsson-Waldhauserova et al., 2013). In total, over 34 dust days per year on average occurred in Iceland based on conventionally used synoptic codes for dust observations. However, frequent volcanic eruptions, with the re-suspension of volcanic materials and dust haze, increased the number of dust events fourfold (135 dust days annually). The position of the Icelandic Low determined whether dust events occurred in the NE (16.4 dust days annually) or in the southern (S) part of Iceland (about 18 dust days annually). The decade with the most frequent dust days in S Iceland was the 1960s, but the 2000s in NE Iceland. A total of 32 severe dust storms (visibility < 500 m) were observed in Iceland with the highest frequency of events during the 2000s in S Iceland. The Arctic dust events (NE Iceland) were typically warm, occurring during summer/autumn (May–September) and during mild southwesterly winds, while the subarctic dust events (S Iceland) were mainly cold, occurring during winter/spring (March–May) and during strong northeasterly winds. About half of the dust events in S Iceland occurred in winter or at sub-zero temperatures. A good correlation was found between particulate matter (PM 10 ) concentrations and visibility during dust observations at the stations Vík and Stórhöfði. This study shows that Iceland is among the dustiest areas of the world and that dust is emitted year-round. |
format |
Article in Journal/Newspaper |
author |
P. Dagsson-Waldhauserova O. Arnalds H. Olafsson |
author_facet |
P. Dagsson-Waldhauserova O. Arnalds H. Olafsson |
author_sort |
P. Dagsson-Waldhauserova |
title |
Long-term variability of dust events in Iceland (1949–2011) |
title_short |
Long-term variability of dust events in Iceland (1949–2011) |
title_full |
Long-term variability of dust events in Iceland (1949–2011) |
title_fullStr |
Long-term variability of dust events in Iceland (1949–2011) |
title_full_unstemmed |
Long-term variability of dust events in Iceland (1949–2011) |
title_sort |
long-term variability of dust events in iceland (1949–2011) |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/acp-14-13411-2014 https://doaj.org/article/0208d14cb04e4fab883f86c3b7a8b5ea |
long_lat |
ENVELOPE(-20.288,-20.288,63.399,63.399) ENVELOPE(-18.762,-18.762,66.136,66.136) |
geographic |
Arctic Stórhöfði Vík |
geographic_facet |
Arctic Stórhöfði Vík |
genre |
Arctic Iceland Subarctic |
genre_facet |
Arctic Iceland Subarctic |
op_source |
Atmospheric Chemistry and Physics, Vol 14, Iss 24, Pp 13411-13422 (2014) |
op_relation |
http://www.atmos-chem-phys.net/14/13411/2014/acp-14-13411-2014.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 doi:10.5194/acp-14-13411-2014 https://doaj.org/article/0208d14cb04e4fab883f86c3b7a8b5ea |
op_doi |
https://doi.org/10.5194/acp-14-13411-2014 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
14 |
container_issue |
24 |
container_start_page |
13411 |
op_container_end_page |
13422 |
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1766342050405416960 |