The Spatiotemporal Characteristics and Driving Factors of Dust Emissions in East Asia (2000–2021)
The climate effect and environmental pollution caused by dust discharged into the atmosphere have attracted much attention. However, the driving factors of dust emissions have not been studied thoroughly. Here, spatiotemporal variations in dust emissions and the relationship between dust emissions a...
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ftdoajarticles:oai:doaj.org/article:94825436c5fa47ee80115b8ccd87dd7f 2023-05-15T15:14:35+02:00 The Spatiotemporal Characteristics and Driving Factors of Dust Emissions in East Asia (2000–2021) Ning Wang Jian Chen Yuanyuan Zhang Yongming Xu Wenzheng Yu 2023-01-01T00:00:00Z https://doi.org/10.3390/rs15020410 https://doaj.org/article/94825436c5fa47ee80115b8ccd87dd7f EN eng MDPI AG https://www.mdpi.com/2072-4292/15/2/410 https://doaj.org/toc/2072-4292 doi:10.3390/rs15020410 2072-4292 https://doaj.org/article/94825436c5fa47ee80115b8ccd87dd7f Remote Sensing, Vol 15, Iss 410, p 410 (2023) dust emissions large-scale atmospheric circulation AO NAO coupling Science Q article 2023 ftdoajarticles https://doi.org/10.3390/rs15020410 2023-01-22T01:26:17Z The climate effect and environmental pollution caused by dust discharged into the atmosphere have attracted much attention. However, the driving factors of dust emissions have not been studied thoroughly. Here, spatiotemporal variations in dust emissions and the relationship between dust emissions and large-scale atmospheric circulation in East Asia from 2000 to 2021 were investigated using Modern-Era Retrospective Analysis for Research and Applications version 2, Cloud-Aerosol Lidar Pathfinder Satellite Observations, ERA5 reanalysis data, and climate indices. Results showed that the Taklimakan Desert in the Tarim Basin, the Gurbantonggut Desert in the Junggar Basin, the Turpan Basin, and the Gobi Desert in western Inner Mongolia and southern Mongolia are the main sources of dust emissions in East Asia. The period of strong dust emissions is from March to May, and emissions to the atmosphere were mainly distributed at 0–4 km in the troposphere. In the eastern and southwestern Tarim Basin, northern Junggar Basin, and parts of the Gobi Desert in southern Mongolia, dust emissions have significantly increased over the past 22 years, whereas in the southwestern Tibetan Plateau, southwestern Inner Mongolia, and a small part of the northern Mongolian Gobi Desert there was a significant decreasing trend. The winter North Atlantic Oscillation (NAO) and Arctic Oscillation (AO) were significantly negatively correlated with East Asian dust emissions the following spring. The various phases of the AO/NAO coupling have clear different effects on East Asian dust emissions in the spring. When the AO/NAO coupling was negative (positive), the East Asian trough and Siberian High were strengthened (weakened), the frequency of cold air activity increased (weakened), 800 hPa wind speed strengthened (weakened), and East Asian emissions increased (decreased). In AO−/NAO+ years, the Asian polar vortex was stronger to the south and the East Asian trough was stronger to the west. The Lake Baikal trough was in the deepening phase, which ... Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Arctic Remote Sensing 15 2 410 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
dust emissions large-scale atmospheric circulation AO NAO coupling Science Q |
spellingShingle |
dust emissions large-scale atmospheric circulation AO NAO coupling Science Q Ning Wang Jian Chen Yuanyuan Zhang Yongming Xu Wenzheng Yu The Spatiotemporal Characteristics and Driving Factors of Dust Emissions in East Asia (2000–2021) |
topic_facet |
dust emissions large-scale atmospheric circulation AO NAO coupling Science Q |
description |
The climate effect and environmental pollution caused by dust discharged into the atmosphere have attracted much attention. However, the driving factors of dust emissions have not been studied thoroughly. Here, spatiotemporal variations in dust emissions and the relationship between dust emissions and large-scale atmospheric circulation in East Asia from 2000 to 2021 were investigated using Modern-Era Retrospective Analysis for Research and Applications version 2, Cloud-Aerosol Lidar Pathfinder Satellite Observations, ERA5 reanalysis data, and climate indices. Results showed that the Taklimakan Desert in the Tarim Basin, the Gurbantonggut Desert in the Junggar Basin, the Turpan Basin, and the Gobi Desert in western Inner Mongolia and southern Mongolia are the main sources of dust emissions in East Asia. The period of strong dust emissions is from March to May, and emissions to the atmosphere were mainly distributed at 0–4 km in the troposphere. In the eastern and southwestern Tarim Basin, northern Junggar Basin, and parts of the Gobi Desert in southern Mongolia, dust emissions have significantly increased over the past 22 years, whereas in the southwestern Tibetan Plateau, southwestern Inner Mongolia, and a small part of the northern Mongolian Gobi Desert there was a significant decreasing trend. The winter North Atlantic Oscillation (NAO) and Arctic Oscillation (AO) were significantly negatively correlated with East Asian dust emissions the following spring. The various phases of the AO/NAO coupling have clear different effects on East Asian dust emissions in the spring. When the AO/NAO coupling was negative (positive), the East Asian trough and Siberian High were strengthened (weakened), the frequency of cold air activity increased (weakened), 800 hPa wind speed strengthened (weakened), and East Asian emissions increased (decreased). In AO−/NAO+ years, the Asian polar vortex was stronger to the south and the East Asian trough was stronger to the west. The Lake Baikal trough was in the deepening phase, which ... |
format |
Article in Journal/Newspaper |
author |
Ning Wang Jian Chen Yuanyuan Zhang Yongming Xu Wenzheng Yu |
author_facet |
Ning Wang Jian Chen Yuanyuan Zhang Yongming Xu Wenzheng Yu |
author_sort |
Ning Wang |
title |
The Spatiotemporal Characteristics and Driving Factors of Dust Emissions in East Asia (2000–2021) |
title_short |
The Spatiotemporal Characteristics and Driving Factors of Dust Emissions in East Asia (2000–2021) |
title_full |
The Spatiotemporal Characteristics and Driving Factors of Dust Emissions in East Asia (2000–2021) |
title_fullStr |
The Spatiotemporal Characteristics and Driving Factors of Dust Emissions in East Asia (2000–2021) |
title_full_unstemmed |
The Spatiotemporal Characteristics and Driving Factors of Dust Emissions in East Asia (2000–2021) |
title_sort |
spatiotemporal characteristics and driving factors of dust emissions in east asia (2000–2021) |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/rs15020410 https://doaj.org/article/94825436c5fa47ee80115b8ccd87dd7f |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
Remote Sensing, Vol 15, Iss 410, p 410 (2023) |
op_relation |
https://www.mdpi.com/2072-4292/15/2/410 https://doaj.org/toc/2072-4292 doi:10.3390/rs15020410 2072-4292 https://doaj.org/article/94825436c5fa47ee80115b8ccd87dd7f |
op_doi |
https://doi.org/10.3390/rs15020410 |
container_title |
Remote Sensing |
container_volume |
15 |
container_issue |
2 |
container_start_page |
410 |
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1766345024053706752 |