What question did this study set out to answer?

Investigate the optical, microphysical, and radiative characteristics of atmospheric aerosols and PM10 variability across northern China during intense spring 2023 sand and dust storms.

November 22, 2023Geoscience FrontiersOpen Access

An analysis of air pollution associated with the 2023 sand and dust storms over China: Aerosol properties and PM10 variability

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Authors

MFMikalai FilonchykLanzhou Jiaotong University MPMichael P. PetersonUniversity of Nebraska at Omaha LZLifeng ZhangLanzhou University of Technology

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Implication

Observational analysis reveals extreme PM10 spikes and significant atmospheric heating across northern China, highlighting severe radiative and air quality impacts from desert dust storms.

Key Points

Investigate the optical, microphysical, and radiative characteristics of atmospheric aerosols and PM10 variability across northern China during intense spring 2023 sand and dust storms.
Integrated multi-source data from VIIRS satellite sensors, ground-based AERONET instrumentation at the AOE_Baotou site, and atmospheric reanalysis datasets across northern China during March and April 2023.
Calculated aerosol optical depth, Ångström exponent, single scattering albedo, asymmetry parameter, refractive indices, aerosol radiative forcing, and atmospheric heating rates.
Daily average PM10 concentrations exceeded 1000 µg/m³ in multiple urban centers north of the Yangtze River, while satellite aerosol optical depth at 550 nm exceeded 1.0 across northern China.
Aerosol radiative forcing ranged from −48.5 to +2.7 W/m² at the top of the atmosphere and from −180.8 to −66.6 W/m² at the surface, driving atmospheric heating rates between 1.8 and 3.7 K/day.
Synoptic analysis revealed that cold fronts connected to low-pressure troughs over the Gobi and Taklamakan deserts triggered the lofting and regional downwind transport of coarse dust.

Cite This Study

Filonchyk et al. (2023) studied this question.

synapsesocial.com/papers/69da243eba6014a02e83600e https://doi.org/10.1016/j.gsf.2023.101762

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Implication

Observational analysis reveals extreme PM10 spikes and significant atmospheric heating across northern China, highlighting severe radiative and air quality impacts from desert dust storms.

An analysis of air pollution associated with the 2023 sand and dust storms over China: Aerosol properties and PM10 variability

Discussion

Member takes

Implication

Key Points

Cite This Study

An analysis of air pollution associated with the 2023 sand and dust storms over China: Aerosol properties and PM10 variability

Discussion

Member takes

Implication

Key Points

Cite This Study

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