A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Strong ozone intrusions associated with super dust storms in East Asia
https://orcid.org/0000-0001-7937-8652
https://orcid.org/0000-0003-0922-5014
Abstract As one of the largest dust source regions, China suffers from frequent dust storms in spring. During the super dust storm in March 2021, a rapid increase in nocturnal surface ozone concentration was observed along with elevated dust loading. Ground-based and satellite observations as well as reanalysis data of air quality and meteorology are integrated to shed light on the ozone anomaly. It is indicated that cold fronts and cyclones are conducive to both dust emissions and the downwards transport of stratospheric air, leading to simultaneously soaring ozone and particle concentrations near the surface. Statistically, in the past few years, under the influence of specific synoptic weather accompanied with Stratosphere-Troposphere Exchange (STE), dust was frequently uplifted to 8–12 km and the low-tropospheric ozone was elevated by approximately 6 ppb in northern China during spring dust storms. This work reveals strong ozone intrusions associated with dust storms, which have great impacts on atmospheric chemistry and regional climate.
Highlights A rapid increase in nighttime ozone near the surface is observed during the strong dust storm in March 2021. The synoptic system associated with the dust storm is also conducive to Stratosphere-Troposphere Exchange. Asian dust storm is often accompanied by surface ozone anomaly due to stratospheric ozone intrusion.
Strong ozone intrusions associated with super dust storms in East Asia
https://orcid.org/0000-0001-7937-8652
https://orcid.org/0000-0003-0922-5014
Abstract As one of the largest dust source regions, China suffers from frequent dust storms in spring. During the super dust storm in March 2021, a rapid increase in nocturnal surface ozone concentration was observed along with elevated dust loading. Ground-based and satellite observations as well as reanalysis data of air quality and meteorology are integrated to shed light on the ozone anomaly. It is indicated that cold fronts and cyclones are conducive to both dust emissions and the downwards transport of stratospheric air, leading to simultaneously soaring ozone and particle concentrations near the surface. Statistically, in the past few years, under the influence of specific synoptic weather accompanied with Stratosphere-Troposphere Exchange (STE), dust was frequently uplifted to 8–12 km and the low-tropospheric ozone was elevated by approximately 6 ppb in northern China during spring dust storms. This work reveals strong ozone intrusions associated with dust storms, which have great impacts on atmospheric chemistry and regional climate.
Highlights A rapid increase in nighttime ozone near the surface is observed during the strong dust storm in March 2021. The synoptic system associated with the dust storm is also conducive to Stratosphere-Troposphere Exchange. Asian dust storm is often accompanied by surface ozone anomaly due to stratospheric ozone intrusion.
Strong ozone intrusions associated with super dust storms in East Asia
https://orcid.org/0000-0001-7937-8652
https://orcid.org/0000-0003-0922-5014
Abstract As one of the largest dust source regions, China suffers from frequent dust storms in spring. During the super dust storm in March 2021, a rapid increase in nocturnal surface ozone concentration was observed along with elevated dust loading. Ground-based and satellite observations as well as reanalysis data of air quality and meteorology are integrated to shed light on the ozone anomaly. It is indicated that cold fronts and cyclones are conducive to both dust emissions and the downwards transport of stratospheric air, leading to simultaneously soaring ozone and particle concentrations near the surface. Statistically, in the past few years, under the influence of specific synoptic weather accompanied with Stratosphere-Troposphere Exchange (STE), dust was frequently uplifted to 8–12 km and the low-tropospheric ozone was elevated by approximately 6 ppb in northern China during spring dust storms. This work reveals strong ozone intrusions associated with dust storms, which have great impacts on atmospheric chemistry and regional climate.
Highlights A rapid increase in nighttime ozone near the surface is observed during the strong dust storm in March 2021. The synoptic system associated with the dust storm is also conducive to Stratosphere-Troposphere Exchange. Asian dust storm is often accompanied by surface ozone anomaly due to stratospheric ozone intrusion.
Strong ozone intrusions associated with super dust storms in East Asia
Yang, Yu (author) / Wang, Zilin (author) / Lou, Sijia (author) / Xue, Lian (author) / Lu, Jinpeng (author) / Wang, Hongyue (author) / Wang, Jiandong (author) / Ding, Aijun (author) / Huang, Xin (author)
Atmospheric Environment ; 290
2022-08-20
Article (Journal)
Electronic Resource
English
Detection of Asia dust storms using multisensor satellite measurements
| Online Contents | 2007
Changes in aerosol optical properties due to dust storms in the Middle East and Southwest Asia
| Online Contents | 2014
Markers of East Asian dust storms in March 2010
| Elsevier | 2015
Dust storms: Recent developments
| Online Contents | 2009