Arid
DOI10.1007/s10661-017-6196-8
Climatology of atmospheric circulation patterns of Arabian dust in western Iran
Najafi, Mohammad Saeed1; Sarraf, B. S.1; Zarrin, A.2; Rasouli, A. A.1
通讯作者Najafi, Mohammad Saeed
来源期刊ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN0167-6369
EISSN1573-2959
出版年2017
卷号189期号:9
英文摘要

Being in vicinity of vast deserts, the west and southwest of Iran are characterized by high levels of dust events, which have adverse consequences on human health, ecosystems, and environment. Using ground based dataset of dust events in western Iran and NCEP/NCAR reanalysis data, the atmospheric circulation patterns of dust events in the Arabian region and west of Iran are identified. The atmospheric circulation patterns which lead to dust events in the Arabian region and western Iran were classified into two main categories: the Shamal dust events that occurs in warm period of year and the frontal dust events as cold period pattern. In frontal dust events, the western trough or blocking pattern at mid-level leads to frontogenesis, instability, and air uplift at lower levels of troposphere in the southwest of Asia. Non-frontal is other pattern of dust event in the cold period and dust generation are due to the regional circulation systems at the lower level of troposphere. In Shamal wind pattern, the Saudi Arabian anticyclone, Turkmenistan anticyclone, and Zagros thermal low play the key roles in formation of this pattern. Summer and transitional patterns are two sub-categories of summer Shamal wind pattern. In summer trough pattern, the mid-tropospheric trough leads to intensify the surface thermal systems in the Middle East and causes instability and rising of wind speed in the region. In synthetic pattern of Shamal wind and summer trough, dust is created by the impact of a trough in mid-levels of troposphere as well as existing the mentioned regional systems which are contributed in formation of summer Shamal wind pattern.


英文关键词Dust event Atmospheric circulation patterns Shamal wind Frontal pattern Western Iran
类型Article
语种英语
国家Iran
收录类别SCI-E
WOS记录号WOS:000410476500048
WOS关键词AEROSOLS ; MODEL
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198733
作者单位1.Univ Tabriz, Dept Climatol, Fac Geog & Planning, Tabriz, Iran;
2.Ferdowsi Univ Mashhad, Dept Geog, Fac Humanities, Mashhad, Iran
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Najafi, Mohammad Saeed,Sarraf, B. S.,Zarrin, A.,et al. Climatology of atmospheric circulation patterns of Arabian dust in western Iran[J],2017,189(9).
APA Najafi, Mohammad Saeed,Sarraf, B. S.,Zarrin, A.,&Rasouli, A. A..(2017).Climatology of atmospheric circulation patterns of Arabian dust in western Iran.ENVIRONMENTAL MONITORING AND ASSESSMENT,189(9).
MLA Najafi, Mohammad Saeed,et al."Climatology of atmospheric circulation patterns of Arabian dust in western Iran".ENVIRONMENTAL MONITORING AND ASSESSMENT 189.9(2017).
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