Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling
East Asia is one of the world's largest sources of dust and anthropogenic pollution. Dust particles originating from East Asia have been recognized to travel across the Pacific to North America and beyond, thereby affecting the radiation incident on the surface as well as clouds aloft in the at...
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ftcaltechauth:oai:authors.library.caltech.edu:79543 2023-05-15T13:15:05+02:00 Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling Guo, Jianping Lou, Mengyun Miao, Yucong Wang, Yuan Zeng, Zhaoliang Liu, Huan He, Jing Xu, Hui Wang, Fu Min, Min Zhai, Panmao 2017-11 https://authors.library.caltech.edu/79543/ https://resolver.caltech.edu/CaltechAUTHORS:20170728-130728616 unknown Elsevier Guo, Jianping and Lou, Mengyun and Miao, Yucong and Wang, Yuan and Zeng, Zhaoliang and Liu, Huan and He, Jing and Xu, Hui and Wang, Fu and Min, Min and Zhai, Panmao (2017) Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling. Environmental Pollution, 230 . pp. 1030-1039. ISSN 0269-7491. doi:10.1016/j.envpol.2017.07.062. https://resolver.caltech.edu/CaltechAUTHORS:20170728-130728616 <https://resolver.caltech.edu/CaltechAUTHORS:20170728-130728616> Article PeerReviewed 2017 ftcaltechauth https://doi.org/10.1016/j.envpol.2017.07.062 2021-11-18T18:43:06Z East Asia is one of the world's largest sources of dust and anthropogenic pollution. Dust particles originating from East Asia have been recognized to travel across the Pacific to North America and beyond, thereby affecting the radiation incident on the surface as well as clouds aloft in the atmosphere. In this study, integrated analyses are performed focusing on one trans-Pacific dust episode during 12–22 March 2015, based on space-borne, ground-based observations, reanalysis data combined with Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT), and the Weather Research and Forecasting Model coupled with Chemistry (WRF-Chem). From the perspective of synoptic patterns, the location and strength of Aleutian low pressure system largely determined the eastward transport of dust plumes towards western North America. Multi-sensor satellite observations reveal that dust aerosols in this episode originated from the Taklimakan and Gobi Deserts. Moreover, the satellite observations suggest that the dust particles can be transformed to polluted particles over the East Asian regions after encountering high concentration of anthropogenic pollutants. In terms of the vertical distribution of polluted dust particles, at the very beginning, they were mainly located in the altitudes ranging from 1 km to 7 km over the source region, then ascended to 2 km–9 km over the Pacific Ocean. The simulations confirm that these elevated dust particles in the lower free troposphere were largely transported along the prevailing westerly jet stream. Overall, observations and modeling demonstrate how a typical springtime dust episode develops and how the dust particles travel over the North Pacific Ocean all the way to North America. Article in Journal/Newspaper aleutian low Caltech Authors (California Institute of Technology) Pacific Environmental Pollution 230 1030 1039 |
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Caltech Authors (California Institute of Technology) |
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description |
East Asia is one of the world's largest sources of dust and anthropogenic pollution. Dust particles originating from East Asia have been recognized to travel across the Pacific to North America and beyond, thereby affecting the radiation incident on the surface as well as clouds aloft in the atmosphere. In this study, integrated analyses are performed focusing on one trans-Pacific dust episode during 12–22 March 2015, based on space-borne, ground-based observations, reanalysis data combined with Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT), and the Weather Research and Forecasting Model coupled with Chemistry (WRF-Chem). From the perspective of synoptic patterns, the location and strength of Aleutian low pressure system largely determined the eastward transport of dust plumes towards western North America. Multi-sensor satellite observations reveal that dust aerosols in this episode originated from the Taklimakan and Gobi Deserts. Moreover, the satellite observations suggest that the dust particles can be transformed to polluted particles over the East Asian regions after encountering high concentration of anthropogenic pollutants. In terms of the vertical distribution of polluted dust particles, at the very beginning, they were mainly located in the altitudes ranging from 1 km to 7 km over the source region, then ascended to 2 km–9 km over the Pacific Ocean. The simulations confirm that these elevated dust particles in the lower free troposphere were largely transported along the prevailing westerly jet stream. Overall, observations and modeling demonstrate how a typical springtime dust episode develops and how the dust particles travel over the North Pacific Ocean all the way to North America. |
format |
Article in Journal/Newspaper |
author |
Guo, Jianping Lou, Mengyun Miao, Yucong Wang, Yuan Zeng, Zhaoliang Liu, Huan He, Jing Xu, Hui Wang, Fu Min, Min Zhai, Panmao |
spellingShingle |
Guo, Jianping Lou, Mengyun Miao, Yucong Wang, Yuan Zeng, Zhaoliang Liu, Huan He, Jing Xu, Hui Wang, Fu Min, Min Zhai, Panmao Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling |
author_facet |
Guo, Jianping Lou, Mengyun Miao, Yucong Wang, Yuan Zeng, Zhaoliang Liu, Huan He, Jing Xu, Hui Wang, Fu Min, Min Zhai, Panmao |
author_sort |
Guo, Jianping |
title |
Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling |
title_short |
Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling |
title_full |
Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling |
title_fullStr |
Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling |
title_full_unstemmed |
Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling |
title_sort |
trans-pacific transport of dust aerosols from east asia: insights gained from multiple observations and modeling |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://authors.library.caltech.edu/79543/ https://resolver.caltech.edu/CaltechAUTHORS:20170728-130728616 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
aleutian low |
genre_facet |
aleutian low |
op_relation |
Guo, Jianping and Lou, Mengyun and Miao, Yucong and Wang, Yuan and Zeng, Zhaoliang and Liu, Huan and He, Jing and Xu, Hui and Wang, Fu and Min, Min and Zhai, Panmao (2017) Trans-Pacific transport of dust aerosols from East Asia: Insights gained from multiple observations and modeling. Environmental Pollution, 230 . pp. 1030-1039. ISSN 0269-7491. doi:10.1016/j.envpol.2017.07.062. https://resolver.caltech.edu/CaltechAUTHORS:20170728-130728616 <https://resolver.caltech.edu/CaltechAUTHORS:20170728-130728616> |
op_doi |
https://doi.org/10.1016/j.envpol.2017.07.062 |
container_title |
Environmental Pollution |
container_volume |
230 |
container_start_page |
1030 |
op_container_end_page |
1039 |
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1766266893686013952 |