A New Classification of Aerosol Sources and Types as Measured over Jaipur
The aerosol properties retrieved from the AErosol RObotic NETwork (AERONET) measurements during the period 2009 to 2012 over Jaipur (26.9°N, 75.8°E, 450m asl) in Northwestern India are used for the first time to identify the types of aerosols. In order to consider the appropriate threshold of aeroso...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.667.598 2023-05-15T13:06:25+02:00 A New Classification of Aerosol Sources and Types as Measured over Jaipur Sunita Verma Divya Prakash Swagata Payra Jean-luc Attié Manish Soni The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.667.598 http://aaqr.org/ArticlesInPress/AAQR-14-07-OA-0143_proof.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.667.598 http://aaqr.org/ArticlesInPress/AAQR-14-07-OA-0143_proof.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://aaqr.org/ArticlesInPress/AAQR-14-07-OA-0143_proof.pdf Aerosols Optical thickness Desert dust Arid Biomass Angstrom exponent text ftciteseerx 2016-01-08T17:10:18Z The aerosol properties retrieved from the AErosol RObotic NETwork (AERONET) measurements during the period 2009 to 2012 over Jaipur (26.9°N, 75.8°E, 450m asl) in Northwestern India are used for the first time to identify the types of aerosols. In order to consider the appropriate threshold of aerosol optical thickness (τ) at 500 nm (τ500) and Angstrom exponent (α) in the spectral band 440–870 nm, a novel approach has been conducted and applied for the identification process. Five prevailing aerosol classes are identified: Desert dust, Biomass, Maritime, Arid Background and Mixed aerosols. Arid background and desert dust type aerosols are the most common at Jaipur (34.7 % and 13.6%, respectively), with a wide variability in both τ and α. In about 8.4 % of the cases, aerosols can be classified as maritime, although mixing with other aerosols (33.6%) is substantial. The ground-based spectral optical thickness and the refractive index estimated at visible and near-infrared wavelengths are used to account for the type of atmospheric aerosols. They are compared with four more AERONET sites located in India based upon their geographical distribution and extensive data availability. Simultaneously, single scattering albedo of dust is also inferred for all the available AERONET sites for the same period over India. Comparisons suggest that Jaipur arid background is more scattering in nature than Northern and Western regions in India. Finally, the absorption is less in summer than in winter over the Jaipur site. Text Aerosol Robotic Network Unknown |
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English |
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Aerosols Optical thickness Desert dust Arid Biomass Angstrom exponent |
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Aerosols Optical thickness Desert dust Arid Biomass Angstrom exponent Sunita Verma Divya Prakash Swagata Payra Jean-luc Attié Manish Soni A New Classification of Aerosol Sources and Types as Measured over Jaipur |
topic_facet |
Aerosols Optical thickness Desert dust Arid Biomass Angstrom exponent |
description |
The aerosol properties retrieved from the AErosol RObotic NETwork (AERONET) measurements during the period 2009 to 2012 over Jaipur (26.9°N, 75.8°E, 450m asl) in Northwestern India are used for the first time to identify the types of aerosols. In order to consider the appropriate threshold of aerosol optical thickness (τ) at 500 nm (τ500) and Angstrom exponent (α) in the spectral band 440–870 nm, a novel approach has been conducted and applied for the identification process. Five prevailing aerosol classes are identified: Desert dust, Biomass, Maritime, Arid Background and Mixed aerosols. Arid background and desert dust type aerosols are the most common at Jaipur (34.7 % and 13.6%, respectively), with a wide variability in both τ and α. In about 8.4 % of the cases, aerosols can be classified as maritime, although mixing with other aerosols (33.6%) is substantial. The ground-based spectral optical thickness and the refractive index estimated at visible and near-infrared wavelengths are used to account for the type of atmospheric aerosols. They are compared with four more AERONET sites located in India based upon their geographical distribution and extensive data availability. Simultaneously, single scattering albedo of dust is also inferred for all the available AERONET sites for the same period over India. Comparisons suggest that Jaipur arid background is more scattering in nature than Northern and Western regions in India. Finally, the absorption is less in summer than in winter over the Jaipur site. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Sunita Verma Divya Prakash Swagata Payra Jean-luc Attié Manish Soni |
author_facet |
Sunita Verma Divya Prakash Swagata Payra Jean-luc Attié Manish Soni |
author_sort |
Sunita Verma |
title |
A New Classification of Aerosol Sources and Types as Measured over Jaipur |
title_short |
A New Classification of Aerosol Sources and Types as Measured over Jaipur |
title_full |
A New Classification of Aerosol Sources and Types as Measured over Jaipur |
title_fullStr |
A New Classification of Aerosol Sources and Types as Measured over Jaipur |
title_full_unstemmed |
A New Classification of Aerosol Sources and Types as Measured over Jaipur |
title_sort |
new classification of aerosol sources and types as measured over jaipur |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.667.598 http://aaqr.org/ArticlesInPress/AAQR-14-07-OA-0143_proof.pdf |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
http://aaqr.org/ArticlesInPress/AAQR-14-07-OA-0143_proof.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.667.598 http://aaqr.org/ArticlesInPress/AAQR-14-07-OA-0143_proof.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766004645559271424 |