Contrasting variation in aerosol optical properties during dust episodes in the Middle East and Southwest Asia: Model results and ground measurement
Dust storms deteriorated air quality over the Gulf Region, Iraq, Iran, and Pakistan during the last decade. The purpose of this study is to investigate the changes in aerosol optical and radiative properties during a dust episode over the various locations in the Middle East and Southwest Asia using...
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ftdoajarticles:oai:doaj.org/article:fcb07ee9fc35414e86024bced4a56b37 2023-05-15T13:06:20+02:00 Contrasting variation in aerosol optical properties during dust episodes in the Middle East and Southwest Asia: Model results and ground measurement Alam Khan Ahmad Maqbool 2019-01-01T00:00:00Z https://doi.org/10.1051/e3sconf/20199904006 https://doaj.org/article/fcb07ee9fc35414e86024bced4a56b37 EN FR eng fre EDP Sciences https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/25/e3sconf_caduc2019_04006.pdf https://doaj.org/toc/2267-1242 2267-1242 doi:10.1051/e3sconf/20199904006 https://doaj.org/article/fcb07ee9fc35414e86024bced4a56b37 E3S Web of Conferences, Vol 99, p 04006 (2019) Environmental sciences GE1-350 article 2019 ftdoajarticles https://doi.org/10.1051/e3sconf/20199904006 2022-12-31T07:48:14Z Dust storms deteriorated air quality over the Gulf Region, Iraq, Iran, and Pakistan during the last decade. The purpose of this study is to investigate the changes in aerosol optical and radiative properties during a dust episode over the various locations in the Middle East and Southwest Asia using data from the MODerate resolution Imaging Spectroradiometer (MODIS) and the Aerosol Robotic Network (AERONET) during March, 2012. Maximum aerosol optical depth (AOD) values were found to be 2.18, 1.30, 4.33 and 1.80 over Lahore, Kanpur, Kaust, and Mezaira, respectively. The Volume Size Distributions, Single Scattering Albedo, Refractive Index, and Asymmetry parameter indicated that coarse mode aerosols were predominant relative to fine mode aerosols during the dust event. The average shortwave aerosol radiative forcing (ARF) values at the earth’s surface were found to be -96±45 W m-2, -86±22 W m-2, -77±51 W m-2, and -75±40 W m-2, over Lahore, Kanpur, Kaust and Mezaira, respectively. Likewise, the averaged ARF values over Lahore, Kanpur, Kaust and Mezaira at the top of the atmosphere (TOA) were found to be -45±25 W m-2, -27±9 W m-2, -41±29 W m-2, and -75±40 W m-2, respectively. The large differences between surface and TOA forcing produced significant heating within the atmosphere. Article in Journal/Newspaper Aerosol Robotic Network Directory of Open Access Journals: DOAJ Articles E3S Web of Conferences 99 04006 |
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Directory of Open Access Journals: DOAJ Articles |
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English French |
topic |
Environmental sciences GE1-350 |
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Environmental sciences GE1-350 Alam Khan Ahmad Maqbool Contrasting variation in aerosol optical properties during dust episodes in the Middle East and Southwest Asia: Model results and ground measurement |
topic_facet |
Environmental sciences GE1-350 |
description |
Dust storms deteriorated air quality over the Gulf Region, Iraq, Iran, and Pakistan during the last decade. The purpose of this study is to investigate the changes in aerosol optical and radiative properties during a dust episode over the various locations in the Middle East and Southwest Asia using data from the MODerate resolution Imaging Spectroradiometer (MODIS) and the Aerosol Robotic Network (AERONET) during March, 2012. Maximum aerosol optical depth (AOD) values were found to be 2.18, 1.30, 4.33 and 1.80 over Lahore, Kanpur, Kaust, and Mezaira, respectively. The Volume Size Distributions, Single Scattering Albedo, Refractive Index, and Asymmetry parameter indicated that coarse mode aerosols were predominant relative to fine mode aerosols during the dust event. The average shortwave aerosol radiative forcing (ARF) values at the earth’s surface were found to be -96±45 W m-2, -86±22 W m-2, -77±51 W m-2, and -75±40 W m-2, over Lahore, Kanpur, Kaust and Mezaira, respectively. Likewise, the averaged ARF values over Lahore, Kanpur, Kaust and Mezaira at the top of the atmosphere (TOA) were found to be -45±25 W m-2, -27±9 W m-2, -41±29 W m-2, and -75±40 W m-2, respectively. The large differences between surface and TOA forcing produced significant heating within the atmosphere. |
format |
Article in Journal/Newspaper |
author |
Alam Khan Ahmad Maqbool |
author_facet |
Alam Khan Ahmad Maqbool |
author_sort |
Alam Khan |
title |
Contrasting variation in aerosol optical properties during dust episodes in the Middle East and Southwest Asia: Model results and ground measurement |
title_short |
Contrasting variation in aerosol optical properties during dust episodes in the Middle East and Southwest Asia: Model results and ground measurement |
title_full |
Contrasting variation in aerosol optical properties during dust episodes in the Middle East and Southwest Asia: Model results and ground measurement |
title_fullStr |
Contrasting variation in aerosol optical properties during dust episodes in the Middle East and Southwest Asia: Model results and ground measurement |
title_full_unstemmed |
Contrasting variation in aerosol optical properties during dust episodes in the Middle East and Southwest Asia: Model results and ground measurement |
title_sort |
contrasting variation in aerosol optical properties during dust episodes in the middle east and southwest asia: model results and ground measurement |
publisher |
EDP Sciences |
publishDate |
2019 |
url |
https://doi.org/10.1051/e3sconf/20199904006 https://doaj.org/article/fcb07ee9fc35414e86024bced4a56b37 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
E3S Web of Conferences, Vol 99, p 04006 (2019) |
op_relation |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/25/e3sconf_caduc2019_04006.pdf https://doaj.org/toc/2267-1242 2267-1242 doi:10.1051/e3sconf/20199904006 https://doaj.org/article/fcb07ee9fc35414e86024bced4a56b37 |
op_doi |
https://doi.org/10.1051/e3sconf/20199904006 |
container_title |
E3S Web of Conferences |
container_volume |
99 |
container_start_page |
04006 |
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1766001351656996864 |