Aerosol properties and associated radiative effects over Cairo (Egypt)

El‐Metwally, Mossad; Alfaro, Stéphane C.; Wahab, M. M. Abdel; Favez, Olivier; Zaiani, Mohamed; Chatenet, B.

doi:10.1016/j.atmosres.2010.10.017

Cited by 45 publications

(14 citation statements)

References 53 publications

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“…The aerosol optical and physical properties such as aerosol optical depth (AOD), single scattering albedo (SSA) and aerosol size distribution are important parameters that control the aerosol radiative forcing at the surface and at the top of the atmosphere, which shows dramatic spatio-temporal variation (Horvath et al, 2002;Wild et al, 2009;Panicker et al, 2013). This emphasizes the need for long-term systematic measurements of aerosol properties for quantification of the impacts of aerosols on the Earth's radiative balance, regional climate, air quality and human health (Horvath et al, 2002;Che et al, 2008;El-Metwally et al, 2011;Sanap and Pandithurai, 2014).…”

Section: Introductionmentioning

confidence: 99%

Long-term observations of aerosol optical properties at Wuhan, an urban site in Central China

Wang¹,

Gong²,

Xia³

et al. 2015

Atmospheric Environment

110

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Section: Introductionmentioning

confidence: 99%

Long-term observations of aerosol optical properties at Wuhan, an urban site in Central China

Wang¹,

Gong²,

Xia³

et al. 2015

Atmospheric Environment

110

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“…Knowledge and understanding of aerosol optical properties in Northeast China remain limited (Zhao et al, 2013a;Wang et al, 2010;Wu et al, 2012). Long-term monitoring of aerosols from the ground is required to obtain the temporal and spatial variation data necessary to understand the effects of aerosols on climate, regional climate and air quality (El-Metwally et al, 2011;Sanap and Pandithurai, 2014;Dani et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Temporal variability of the visibility, particulate matter mass concentration and aerosol optical properties over an urban site in Northeast China

Zhao

Che

et al. 2015

Atmospheric Research

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“…Dust was found to be one of the major components of aerosol composition (apart from other species) over the region , which significantly affects the region during premonsoon period due to enhanced surface convection activities Pandithurai et al, 2008;Gautam et al, 2009;Eck et al, 2010;Giles et al, 2011;Srivastava et al, 2011aSrivastava et al, , 2011bSrivastava et al, , 2012b, and thus essential to quantify its contribution over the region. The total uncertainty in the retrieved parameters is discussed elsewhere Holben et al, 2001;Ogunjobi et al, 2008;El-Metwally et al, 2011).…”

Section: Site Description and Experimental Set-upmentioning

confidence: 99%

Inferring aerosol types over the Indo-Gangetic Basin from ground based sunphotometer measurements

Srivastava

Tripathi

Dey

et al. 2012

Atmospheric Research

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A discrimination of aerosol types over the Indo-Gangetic Basin (IGB) region during pre-monsoon period was made using multi-year ground based sun/sky radiometer measured aerosol products associated with the size of aerosols and radiation absorptivity. High dust enriched aerosols (i.e. polluted dust, PD) were found to contribute more over the central IGB station at Kanpur (KNP, 62%) as compared to the eastern IGB station at Gandhi College (GC, 31%) whereas vice-versa was observed for polluted continental (PC) aerosols, which contain high anthropogenic and less dust aerosols. Contributions of carbonaceous particles having high absorbing (mostly black carbon, MBC) and low absorbing (mostly organic carbon, MOC) aerosols were found to be 11% and 10%, respectively at GC, which was~46% and 62% higher than the observed contributions at KNP; however, very less contribution of non-absorbing (NA) aerosols was observed only at GC (2%). Variability in aerosol types together with single scattering albedo (SSA) at both the stations were also studied during the forenoon (FN) and afternoon (AN) hour, which suggests their strong association with emission sources. Results were well substantiated with the air mass backtrajectories and the fire products. Spectral information of SSA for each aerosol type discriminates the dominance of natural dust (SSA increases with increasing wavelength) with anthropogenic aerosols (SSA decreases with increasing wavelength) at both the locations. The estimated absorption Ångström exponent (AAE) values suggest relative dominance of absorbing type aerosols over the central part of IGB (due to dominant dust absorption) as compared to the eastern part during pre-monsoon period.

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Aerosol properties and associated radiative effects over Cairo (Egypt)

Cited by 45 publications

References 53 publications

Long-term observations of aerosol optical properties at Wuhan, an urban site in Central China

Long-term observations of aerosol optical properties at Wuhan, an urban site in Central China

Temporal variability of the visibility, particulate matter mass concentration and aerosol optical properties over an urban site in Northeast China

Inferring aerosol types over the Indo-Gangetic Basin from ground based sunphotometer measurements

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