Journal ArticleDOI
Aerosol black carbon quantification in the central Indo-Gangetic Plain: Seasonal heterogeneity and source apportionment
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TLDR
In this paper, two years of aerosol spectral light absorption measurements, using filter based technique, from the central Indo-Gangetic plain (IGP), Gorakhpur (26.75°N, 83.38°E, 85 m aml), are analyzed to study their seasonal behavior and quantify their magnitude in terms of absorbing aerosols loading and source speciation.About:
This article is published in Atmospheric Research.The article was published on 2017-03-01. It has received 81 citations till now. The article focuses on the topics: Aerosol.read more
Citations
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Journal ArticleDOI
Assessment of biomass burning and fossil fuel contribution to black carbon concentrations in Delhi during winter
Umesh Chandra Dumka,Dimitris G. Kaskaoutis,Suresh Tiwari,Pramod D. Safai,S. D. Attri,Vijay K. Soni,Narendra Singh,Nikos Mihalopoulos +7 more
TL;DR: In this paper, the contribution of fossil-fuel combustion (BCff) and biomass burning (BCwb) to wintertime black carbon (BC) concentrations in Delhi using the Aethalometer model was assessed.
Journal ArticleDOI
Black carbon aerosol in India: A comprehensive review of current status and future prospects
TL;DR: A comprehensive review of black carbon measurements in India from a survey of >140 studies spanning 2002-2018 is presented in this paper, where the authors identify key areas for improvement, such as the need for long-term BC monitoring networks, especially in regions where estimated emissions are high but measurement coverage is low; the general lack of understanding, despite some recent reports, of BC aerosol mixing states, aging and direct climate effects in the Indian context; the need to shift from qualitative approaches of BC source apportionment to robust quantitative measures; and the prospects for coupled chemical-opt
Journal ArticleDOI
Light absorption characteristics of brown carbon during foggy and non-foggy episodes over the Indo-Gangetic Plain
Vikram Choudhary,Prashant Rajput,Dharmendra Kumar Singh,Dharmendra Kumar Singh,Amit Kumar Singh,Tarun Gupta +5 more
TL;DR: In this paper, the authors collected PM1 samples during foggy and non-foggy nights at Kanpur in central Indo-Gangetic plain (IGP) to assess light absorption characteristics and direct radiative forcing of water-extractable brown carbon (BrC).
Journal ArticleDOI
Long-term variability, source apportionment and spectral properties of black carbon at an urban background site in Athens, Greece
Eleni Liakakou,Iasonas Stavroulas,Dimitris G. Kaskaoutis,Georgios Grivas,Despina Paraskevopoulou,Umesh Chandra Dumka,Maria Tsagkaraki,Aikaterini Bougiatioti,K. Oikonomou,Jean Sciare,Evangelos Gerasopoulos,Nikos Mihalopoulos +11 more
TL;DR: In this article, the characteristics of Black Carbon (BC) in the atmosphere over Athens, Greece, using 4-year (May 2015-April 2019) Aethalometer (AE-33) measurements are delineated.
Journal ArticleDOI
Year-long variability of the fossil fuel and wood burning black carbon components at a rural site in southern Delhi outskirts
Umesh Chandra Dumka,Dimitris G. Kaskaoutis,Panuganti C. S. Devara,Rajesh Kumar,Sarvan Kumar,Suresh Tiwari,Evangelos Gerasopoulos,Nikos Mihalopoulos +7 more
TL;DR: In this paper, the authors examined the seasonality of black carbon (BC) concentrations and quantified the relative contributions from fossil-fuel combustion (BCff) and wood burning (BCwb) on annual basis.
References
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Journal ArticleDOI
Global and regional climate changes due to black carbon
TL;DR: The second most important contribution to anthropogenic climate warming, after carbon dioxide emissions, was made by black carbon emissions as mentioned in this paper, which is an efficient absorbing agent of solar irradiation that is preferentially emitted in the tropics and can form atmospheric brown clouds in mixture with other aerosols.
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Climate Effects of Black Carbon Aerosols in China and India
TL;DR: A global climate model used to investigate possible aerosol contributions to trends in China and India found precipitation and temperature changes in the model that were comparable to those observed if the aerosols included a large proportion of absorbing black carbon (“soot”), similar to observed amounts.
Journal ArticleDOI
Black carbon or brown carbon? The nature of light-absorbing carbonaceous aerosols
TL;DR: In this article, the authors show that brown carbon may severely bias measurements of atmospheric "black carbon" and "elemental carbon" over vast parts of the troposphere, especially those strongly polluted by biomass burning, where the mass concentration of C brown is high relative to that of soot carbon.
Journal ArticleDOI
An Enhanced Contextual Fire Detection Algorithm for MODIS
TL;DR: An improved replacement detection algorithm is presented that offers increased sensitivity to smaller, cooler fires as well as a significantly lower false alarm rate.
Journal ArticleDOI
Evidence that the spectral dependence of light absorption by aerosols is affected by organic carbon
TL;DR: In this paper, the wavelength dependence of light absorption by aerosols collected on filters is investigated throughout the near-ultraviolet to near-infrared spectral region using an optical transmission method.
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