Arid
DOI10.1016/j.atmosenv.2014.05.012
Extremely high aerosol loading over Arabian Sea during June 2008: The specific role of the atmospheric dynamics and Sistan dust storms
Kaskaoutis, D. G.1; Rashki, A.2; Houssos, E. E.3; Goto, D.4; Nastos, P. T.5
通讯作者Kaskaoutis, D. G.
来源期刊ATMOSPHERIC ENVIRONMENT
ISSN1352-2310
EISSN1873-2844
出版年2014
卷号94页码:374-384
英文摘要

This study focuses on analyzing the extreme aerosol loading and the mechanisms, source areas and meteorological conditions that favored the abnormal dust exposure towards Arabian Sea during June 2008. The analysis reveals that the spatial-averaged aerosol optical depth (ADD) over Arabian Sea in June 2008 is 0.5 (78.2%) higher than the 2000-2013 mean June value and is mostly attributed to the enhanced dust activity and several (18) dust storms originated from the Sistan region (Iran Afghanistan borders). Landsat images show that the marshy lakes in Sistan basin got dried during the second half of June 2008 and the alluvial silt and saline material got easily eroded by the intense Levar winds, which were stronger (>15-20 m s(-1)) than the climatological mean for the month of June. These conditions led to enhanced dust exposure from Sistan that strongly affected the northern and central parts of the Arabian Sea, as forward air-mass trajectories show. The NCEP/NCAR reanalysis reveals an abnormal intensification and spatial expansion of the Indian low pressure system towards northern Arabian Sea in June 2008. This suggests strengthening of the convection over the arid southwest Asia and exposure of significant amount of dust, which can reach further south over Arabian Sea favored by the enhanced cyclonic circulation. MODIS imagery highlighted several dust storms originated from Sistan and affecting Arabian Sea during June 2008, while the SPRINTARS model simulations of increased AOD and dust concentration over Sistan and downwind areas are in agreement with ground-based and satellite observations. (C) 2014 Elsevier Ltd. All rights reserved.


英文关键词Arabian Sea Severe AOD Dust storms Remote sensing Synoptic meteorology SPRINTARS
类型Article
语种英语
国家India ; Iran ; Greece ; Japan
收录类别SCI-E
WOS记录号WOS:000340316300041
WOS关键词OPTICAL-PROPERTIES ; SUMMER MONSOON ; REGION ; VARIABILITY ; SIMULATION ; SOIL
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向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/2XILL650/180937
作者单位1.Shiv Nadar Univ, Sch Nat Sci, Dept Phys, Tehsil Dadri 203207, India;
2.Ferdowsi Univ Mashhad, Nat Resources & Environm Coll, Mashhad, Iran;
3.Univ Ioannina, Dept Phys, Lab Meteorol, GR-45110 Ioannina, Greece;
4.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan;
5.Univ Athens, Fac Geol & Geoenvironm, Lab Climatol & Atmospher Environm, Zografos 15784, Greece
推荐引用方式
GB/T 7714
Kaskaoutis, D. G.,Rashki, A.,Houssos, E. E.,et al. Extremely high aerosol loading over Arabian Sea during June 2008: The specific role of the atmospheric dynamics and Sistan dust storms[J],2014,94:374-384.
APA Kaskaoutis, D. G.,Rashki, A.,Houssos, E. E.,Goto, D.,&Nastos, P. T..(2014).Extremely high aerosol loading over Arabian Sea during June 2008: The specific role of the atmospheric dynamics and Sistan dust storms.ATMOSPHERIC ENVIRONMENT,94,374-384.
MLA Kaskaoutis, D. G.,et al."Extremely high aerosol loading over Arabian Sea during June 2008: The specific role of the atmospheric dynamics and Sistan dust storms".ATMOSPHERIC ENVIRONMENT 94(2014):374-384.
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