Aerosol Trends during the Dusty Season over Iran

doi:10.3390/rs13061045

	Aerosol Trends during the Dusty Season over Iran
	Yousefi, Robabeh 1,2; Wang, Fang 1; Ge, Quansheng 1; Lelieveld, Jos 3,4; Shaheen, Abdallah 5,6
刊名	REMOTE SENSING
	2021-03-01
卷号	13 期号:6 页码:16
关键词	AOD trends MERRA-2 MODIS dust changes meteorology Iran
DOI	10.3390/rs13061045
通讯作者	Wang, Fang(wangf@igsnrr.ac.cn)
英文摘要	This study assessed the aerosol climatology over Iran, based on the monthly data of aerosol optical depth (AOD) derived from the reanalysis-based Modern Era Retrospective Analysis for Research and Applications (MERRA-2) and the satellite-based Moderate Resolution Imaging Spectroradiometer (MODIS). In addition, sea level pressure, wind speed, temperature, relative humidity, precipitation, and soil moisture from the ERA5 reanalysis dataset were applied to investigate the climate-related effects on temporal AOD changes. Our analysis identified positive and negative AOD trends during 2000-2010 and 2010-2018, respectively, which are likely linked to aeolian dust changes. The dust-driven AOD trends were supported by changes in the angstrom ngstrom exponent (AE) and fine mode fraction (FMF) of aerosols over Iran. During the early period (2000-2010), results of AOD-meteorology correlation analyses suggest reduced soil moisture, leading to increased dust emissions, whereas our results suggest that during the later period (2010-2018) an increase of soil moisture led to decreased AOD levels. Soil moisture appears to be a key factor in dust mobilization in the region, notably in southwestern Iran, being influenced by adjacent mineral dust sources. These phenomena were affected by large-scale sea level pressure transformations and the associated meteorology in the preceding winter seasons. Using a multiple linear regression model, AOD variability was linked to various meteorological factors in different regions. Our results suggest that climatic variations strongly affect the dust cycle, with a strong dependence on wintertime conditions in the region.
资助项目	National Key Research and Development Program of China[2019 YFC0507805] ; National Key Research and Development Program of China[2016YFA0602704] ; Strategic Leading Science and Technology Program of the Chinese Academy of Sciences[XDA20020202] ; National Natural Science Foundation of China[41771050]
WOS关键词	OPTICAL DEPTH ; DESERT DUST ; TRANSPORT ; CHINA ; MODEL ; CLIMATOLOGY ; EVENTS ; ERA5 ; REANALYSIS ; EVOLUTION
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	MDPI
WOS记录号	WOS:000651934900001
资助机构	National Key Research and Development Program of China ; Strategic Leading Science and Technology Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162817]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Fang
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100101, Peoples R China 3.Max Planck Inst Chem, Dept Atmospher Chem, POB 3060, D-55020 Mainz, Germany 4.Cyprus Inst, Climate & Atmosphere Res Ctr, POB 27456, CY-1645 Nicosia, Cyprus 5.Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing 100029, Peoples R China 6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Yousefi, Robabeh,Wang, Fang,Ge, Quansheng,et al. Aerosol Trends during the Dusty Season over Iran[J]. REMOTE SENSING,2021,13(6):16.
APA	Yousefi, Robabeh,Wang, Fang,Ge, Quansheng,Lelieveld, Jos,&Shaheen, Abdallah.(2021).Aerosol Trends during the Dusty Season over Iran.REMOTE SENSING,13(6),16.
MLA	Yousefi, Robabeh,et al."Aerosol Trends during the Dusty Season over Iran".REMOTE SENSING 13.6(2021):16.