Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs
Using data from the ground-based remote sensing Aerosol Robotic Network (AERONET), aerosol optical properties, including aerosol optical depth (AOD), Angstrom exponent (alpha), and volume size distribution were investigated for the period June to December 2011 at Mt Muztagh Ata (Muztagata), Eastern...
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ftchacadscircees:oai:ir.rcees.ac.cn:311016/32408 2023-05-15T13:06:29+02:00 Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs Yan, Ni Wu, Guangjian Zhang, Xuelei Zhang, Chenglong Xu, Tianli Lazhu 2015-02 http://ir.rcees.ac.cn/handle/311016/32408 unknown ATMOSPHERIC RESEARCH Yan, Ni,Wu, Guangjian,Zhang, Xuelei,et al. Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs[J]. ATMOSPHERIC RESEARCH,2015,153(1):480-488. http://ir.rcees.ac.cn/handle/311016/32408 cn.org.cspace.api.content.CopyrightPolicy@23612c Aeronet Muztagh Ata Aerosol Optical Depth Angstrom Exponent Volume Size Distribution Meteorology & Atmospheric Sciences 期刊论文 2015 ftchacadscircees 2020-12-22T10:22:14Z Using data from the ground-based remote sensing Aerosol Robotic Network (AERONET), aerosol optical properties, including aerosol optical depth (AOD), Angstrom exponent (alpha), and volume size distribution were investigated for the period June to December 2011 at Mt Muztagh Ata (Muztagata), Eastern Pamirs. The monthly average values of AOD (500 nm) and alpha (440-870 nm) varied from 0.08 +/- 0.02 to 0.16 +/- 0.11, and from 0.56 +/- 0.06 to 0.93 +/- 0.28, respectively. The daily AOD averages 0.14 +/- 0.07, with the maximum (0.5) occurring in August and the minimum (0.05) occurring in November. A small increase in AOD is expected with a noticeable decrease in the a value. The daily alpha averages 0.70 +/- 0.27, and most exponents are less than 1, indicating the majority of larger aerosol particles. The volume size distribution of aerosol particles shows bimodal log-normal characteristics, with a fine mode radius of 02 mu m and a coarse mode radius of 3 mu m. The MODIS AOD and AERONET ADD display a similar variation, while the former is always noticeably higher than the latter with a difference of 0.1-0.4, indicating that the MODIS data might overestimate the aerosol load. Our results indicate that high aerosol volume concentration occurs in summer with the dominance of coarse particles over Muztagh Ata. The low AOD shows a clean atmosphere in this region, revealing that it is an atmospheric background site for continental aerosol monitoring. (C) 2014 Elsevier B.V. All rights reserved. Report Aerosol Robotic Network Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences) |
institution |
Open Polar |
collection |
Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchacadscircees |
language |
unknown |
topic |
Aeronet Muztagh Ata Aerosol Optical Depth Angstrom Exponent Volume Size Distribution Meteorology & Atmospheric Sciences |
spellingShingle |
Aeronet Muztagh Ata Aerosol Optical Depth Angstrom Exponent Volume Size Distribution Meteorology & Atmospheric Sciences Yan, Ni Wu, Guangjian Zhang, Xuelei Zhang, Chenglong Xu, Tianli Lazhu Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs |
topic_facet |
Aeronet Muztagh Ata Aerosol Optical Depth Angstrom Exponent Volume Size Distribution Meteorology & Atmospheric Sciences |
description |
Using data from the ground-based remote sensing Aerosol Robotic Network (AERONET), aerosol optical properties, including aerosol optical depth (AOD), Angstrom exponent (alpha), and volume size distribution were investigated for the period June to December 2011 at Mt Muztagh Ata (Muztagata), Eastern Pamirs. The monthly average values of AOD (500 nm) and alpha (440-870 nm) varied from 0.08 +/- 0.02 to 0.16 +/- 0.11, and from 0.56 +/- 0.06 to 0.93 +/- 0.28, respectively. The daily AOD averages 0.14 +/- 0.07, with the maximum (0.5) occurring in August and the minimum (0.05) occurring in November. A small increase in AOD is expected with a noticeable decrease in the a value. The daily alpha averages 0.70 +/- 0.27, and most exponents are less than 1, indicating the majority of larger aerosol particles. The volume size distribution of aerosol particles shows bimodal log-normal characteristics, with a fine mode radius of 02 mu m and a coarse mode radius of 3 mu m. The MODIS AOD and AERONET ADD display a similar variation, while the former is always noticeably higher than the latter with a difference of 0.1-0.4, indicating that the MODIS data might overestimate the aerosol load. Our results indicate that high aerosol volume concentration occurs in summer with the dominance of coarse particles over Muztagh Ata. The low AOD shows a clean atmosphere in this region, revealing that it is an atmospheric background site for continental aerosol monitoring. (C) 2014 Elsevier B.V. All rights reserved. |
format |
Report |
author |
Yan, Ni Wu, Guangjian Zhang, Xuelei Zhang, Chenglong Xu, Tianli Lazhu |
author_facet |
Yan, Ni Wu, Guangjian Zhang, Xuelei Zhang, Chenglong Xu, Tianli Lazhu |
author_sort |
Yan, Ni |
title |
Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs |
title_short |
Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs |
title_full |
Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs |
title_fullStr |
Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs |
title_full_unstemmed |
Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs |
title_sort |
variation of aerosol optical properties from aeronet observation at mt. muztagh ata, eastern pamirs |
publishDate |
2015 |
url |
http://ir.rcees.ac.cn/handle/311016/32408 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
ATMOSPHERIC RESEARCH Yan, Ni,Wu, Guangjian,Zhang, Xuelei,et al. Variation of aerosol optical properties from AERONET observation at Mt. Muztagh Ata, Eastern Pamirs[J]. ATMOSPHERIC RESEARCH,2015,153(1):480-488. http://ir.rcees.ac.cn/handle/311016/32408 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@23612c |
_version_ |
1766007718500368384 |