Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/10962247.2013.805703 |
Long-term dust aerosol production from natural sources in Iceland | |
Dagsson-Waldhauserova, Pavla1,2; Arnalds, Olafur2; Olafsson, Haraldur1,3,4 | |
通讯作者 | Dagsson-Waldhauserova, Pavla |
来源期刊 | JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
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ISSN | 1096-2247 |
EISSN | 2162-2906 |
出版年 | 2017 |
卷号 | 67期号:2页码:173-181 |
英文摘要 | Iceland is a volcanic island in the North Atlantic Ocean with maritime climate. In spite of moist climate, large areas are with limited vegetation cover where >40% of Iceland is classified with considerable to very severe erosion and 21% of Iceland is volcanic sandy deserts. Not only do natural emissions from these sources influenced by strong winds affect regional air quality in Iceland (Reykjavik haze), but dust particles are transported over the Atlantic ocean and Arctic Ocean >1000 km at times. The aim of this paper is to place Icelandic dust production area into international perspective, present long-term frequency of dust storm events in northeast Iceland, and estimate dust aerosol concentrations during reported dust events.Meteorological observations with dust presence codes and related visibility were used to identify the frequency and the long-term changes in dust production in northeast Iceland. There were annually 16.4 days on average with reported dust observations on weather stations within the northeastern erosion area, indicating extreme dust plume activity and erosion within the northeastern deserts, even though the area is covered with snow during the major part of winter. During the 2000s the highest occurrence of dust events in six decades was reported. We have measured saltation and Aeolian transport during dust/volcanic ash storms in Iceland, which give some of the most intense wind erosion events ever measured.Icelandic dust affects the ecosystems over much of Iceland and causes regional haze. It is likely to affect the ecosystems of the oceans around Iceland, and it brings dust that lowers the albedo of the Icelandic glaciers, increasing melt-off due to global warming. The study indicates that Icelandic dust may contribute to the Arctic air pollution.Implications: Long-term records of meteorological dust observations from Northeast Iceland indicate the frequency of dust events from Icelandic deserts. The research involves a 60-year period and provides a unique perspective of the dust aerosol production from natural sources in the sub-Arctic Iceland. The amounts are staggering, and with this paper, it is clear that Icelandic dust sources need to be considered among major global dust sources. This paper presents the dust events directly affecting the air quality in the Arctic region. |
类型 | Article |
语种 | 英语 |
国家 | Iceland ; Norway |
收录类别 | SCI-E |
WOS记录号 | WOS:000392656300004 |
WOS关键词 | MINERAL DUST ; STORMS ; VISIBILITY ; TRANSPORT ; CHINA ; SAND |
WOS类目 | Engineering, Environmental ; Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/200825 |
作者单位 | 1.Univ Iceland, Fac Phys Sci, Saemundargata 2, IS-101 Reykjavik, Iceland; 2.Agr Univ Iceland, Fac Agr & Environm Sci, Hvanneyri, Borgarnes, Iceland; 3.Iceland Meteorol Off, Reykjavik, Iceland; 4.Univ Bergen, Inst Geophys, Bergen Sch Meteorol, Bergen, Norway |
推荐引用方式 GB/T 7714 | Dagsson-Waldhauserova, Pavla,Arnalds, Olafur,Olafsson, Haraldur. Long-term dust aerosol production from natural sources in Iceland[J],2017,67(2):173-181. |
APA | Dagsson-Waldhauserova, Pavla,Arnalds, Olafur,&Olafsson, Haraldur.(2017).Long-term dust aerosol production from natural sources in Iceland.JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION,67(2),173-181. |
MLA | Dagsson-Waldhauserova, Pavla,et al."Long-term dust aerosol production from natural sources in Iceland".JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION 67.2(2017):173-181. |
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