干旱区生态环境知识资源中心(Arid): Dust concentration over a semi-arid region: Parametric study and establishment of new empirical models

Arid

DOI	10.1016/j.atmosres.2020.104995
	Dust concentration over a semi-arid region: Parametric study and establishment of new empirical models
	Najafpour, Nategheh; Afshin, Hossein; Firoozabadi, Bahar
通讯作者	Afshin, H
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2020
卷号	243
英文摘要	In recent years, the city of Tehran, Iran's capital, has encountered numerous dust events so that the dust concentration of PM10, has reached even more than 800 mu g m(-3). This emphasizes the importance of the statistical study of dust in Tehran and the development of correlations for estimating dust concentration of PM10. In the present study, by evaluating the data measured during dust observations over the years 2013-2016 in Tehran, new statistical models are established for estimating PM10, concentration in terms of horizontal visibility and MODIS AOD. Firstly, simple nonlinear regression models between dust concentration of PM10, and horizontal visibility as well as MODIS AOD are developed. Afterward, by combining the mentioned parameters with meteorological measurements, including wind speed, relative humidity, and temperature, multivariate nonlinear regression models are obtained. The descriptive statistical parameters and Taylor diagram concept are used in order to compare the performance of various models. Analyzing the developed models indicates that the simple model based on horizontal visibility has the best performance (R = 0.90) and considering meteorological parameters does not have a significant positive impact on the model performance. Furthermore, the estimated dust concentration of PM10, using simple models developed in this study has a better correlation with the measurements in Tehran in comparison with the results obtained by models of other researchers. This demonstrates the importance of developing such models according to the climatic and geological conditions of the investigated region.
英文关键词	Dust storm PM10 Visibility MODIS AOD Simple regression Multivariate regression
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000539111800007
WOS关键词	AEROSOL OPTICAL DEPTH ; LEVEL PM10 CONCENTRATION ; PARTICULATE MATTER ; SAHARAN DUST ; SOURCE AREAS ; MODIS ; VISIBILITY ; STORM ; MASS ; WIND
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324699
作者单位	[Najafpour, Nategheh; Afshin, Hossein; Firoozabadi, Bahar] Sharif Univ Technol, Ctr Excellence Energy Convers, Sch Mech Engn, POB 11155-9567, Tehran, Iran
推荐引用方式 GB/T 7714	Najafpour, Nategheh,Afshin, Hossein,Firoozabadi, Bahar. Dust concentration over a semi-arid region: Parametric study and establishment of new empirical models[J],2020,243.
APA	Najafpour, Nategheh,Afshin, Hossein,&Firoozabadi, Bahar.(2020).Dust concentration over a semi-arid region: Parametric study and establishment of new empirical models.ATMOSPHERIC RESEARCH,243.
MLA	Najafpour, Nategheh,et al."Dust concentration over a semi-arid region: Parametric study and establishment of new empirical models".ATMOSPHERIC RESEARCH 243(2020).