Modeling Asian Dust Storms Using WRF‐Chem During the DRAGON‐Asia Field Campaign in April 2012

Kim, Kyoung‐Min; Kim, Si‐Wan; Choi, Myungje; Kim, Mijin; Kim, Jhoon; Shin, Inchul; Kim, Jeongeun; Chung, Chu-Yong; Yeo, Hwanmyeong; Kim, Sang Woo; Joo, Seung Jin; McKeen, S. A.; Zhang, Li

doi:10.1029/2021jd034793

Cited by 14 publications

(6 citation statements)

References 73 publications

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“…The specified Gobi Desert area is mainly covered with bare soil except for the lower east region. The location of Gobi Desert in this study is defined as 90-112 °E, 40-45.5 °N, using definition as Chen et al (2017bChen et al ( , 2017c and Kim et al (2021).…”

Section: Study Regionmentioning

confidence: 99%

Possible impact of North Atlantic sea surface temperature on decadal variability of dust activity in Gobi Desert

Park,

Kim,

Yang

et al. 2024

Environ. Res. Commun.

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Semiarid to arid regions located in north of China are known as one of the largest sources of dust aerosols in the globe. Previous studies demonstrated direct and indirect effects of atmospheric dust loading on climate. The surface and meteorological properties are known to be affecting dust entrainment process. In this study, we found decadal variations of dust occurrence in Gobi Desert with the period of ~24 years utilizing the data acquired at the surface meteorological stations. An analysis of reanalysis datasets shows significant correlations between February North Atlantic Sea Surface Temperature (NASST) and precipitation in Gobi Desert and Mongolia in the following summer, causing decadal variation of dust event frequency in subsequent spring over the region. Strong time-lagged correlation is shown to be linked to an atmospheric wave train pattern that initiated from the NASST region, affecting large-scale circulation, ultimately causing surface drought over Gobi Desert.

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Section: Study Regionmentioning

confidence: 99%

Possible impact of North Atlantic sea surface temperature on decadal variability of dust activity in Gobi Desert

Park,

Kim,

Yang

et al. 2024

Environ. Res. Commun.

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“…The long-term variations in dust transport pathways across the East Asian outflow regions have yet to be fully investigated. Previous studies on dust transport have predominantly focused on specific events and limited geographical areas 4,5,8,10,11,[14][15][16][17]27,29,31,36 . Consequently, our sample size is relatively small to draw definitive conclusions.…”

Section: East Asian Dust Activitymentioning

confidence: 99%

“…Transboundary air pollution resulting from winter monsoondriven continental outflows has raised significant environmental concerns in downwind areas such as South Korea [4][5][6][7] , Japan 3,[7][8][9][10][11] , Taiwan [12][13][14][15][16] , and Hong Kong 14,[17][18][19] . In eastern China, satellitebased estimates of PM 2.5 show consistent long-term trends with some variations in interannual patterns among subregions (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Mineral dust, originating from the East Asian arid and semiarid regions, can undergo extensive long-distance transport from these source regions 4,[27][28][29] . The dust outflows exert considerable influence on the downwind regions, with the eastward pathway reaching Korea and Japan 4,5,8,10,11 , and the southward pathway extending to Taiwan and Hong Kong 12,[14][15][16][17] . Over the past four decades, a gradual decrease in the occurrence of springtime Asian dust storms has been observed in the source regions, and primarily attributed to a weakening of surface winds [30][31][32][33] and an increase in vegetation coverage 30,32,33 .…”

Section: Introductionmentioning

confidence: 99%

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Temporal coherence in particulate matter in East Asian outflow regions: fingerprints of ENSO and Asian dust

Kueh,

Lin,

Chien

2023

npj Clim Atmos Sci

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Understanding temporal coherence in particulate matter (PM) pollution across East Asian outflow regions is crucial for collaborative efforts in addressing air pollution challenges. In this study, we analyze daily PM exceedance patterns using ground-based measurements over the past two decades, focusing on the influence of El Niño-Southern Oscillation (ENSO) and Asian dust activity. ENSO-related coherent PM exceedance shows lower occurrence during El Niño compared to La Niña in spring, due to weakened continental outflows and increased precipitation. Temporal distribution of dust-related coherent PM exceedance closely mirrors springtime dust activity in source regions, indicating significant dust emission impact on outflow regions. Our findings have implications for climate variability and the assessment of multi-decade model simulations.

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“…Numerical models can provide three-dimensional parameters, but they are highly sensitive to initial and boundary conditions when simulating sand and dust transport processes. Most simulations still have shortcomings in accurately representing the dust emission process, resulting in lower confidence in the simulation outcomes [15,16]. Reanalyzed data, which assimilate multiple sources of dust observations, including ground-based, sounding, and satellite data, can provide powerful support for analyzing the three-dimensional transport of dust.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Severe Dust Process and Its Impact on Air Quality in Northern China

et al. 2023

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Extreme meteorological events can influence air quality. In March 2021, northern China experienced a severe dust event, leading to widespread air quality deterioration. Using reanalysis datasets and station data, we investigate the synoptic weather patterns, dust transport characteristics, and associated impacts on air quality during this event. The results are as follows. (1) The dust event is closely linked to the Mongolian cyclone, providing favorable conditions for dust emission and long-distance transport. (2) The Gobi Desert in Mongolia is the primary source, with dust particles transported from Mongolia to northern China via the northwesterly flow. Dust transport exhibits a complex three-dimensional structure, with the most intense dust transport at approximately 2500 m altitude. (3) The impact of this dust event on air quality was characterized by its remarkable intensity, extensive spatial coverage, and prolonged duration. Additionally, 58.8% of the stations in northern China experienced pollution, 36.3% of them reached severe pollution levels or higher, and 35.9% of the sites experienced more than 12 h of pollution. (4) The visibility at the northern stations near the dust source rapidly decreases due to solid dust particles. In contrast, the southern stations, with higher moisture content, are primarily affected by liquid particles in terms of visibility. After the frontal passage, wet deposition from the precipitation process gradually improves visibility.

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Modeling Asian Dust Storms Using WRF‐Chem During the DRAGON‐Asia Field Campaign in April 2012

Abstract: Wind-blown mineral dust aerosols substantially contribute to the global budget of aerosol mass and therefore can play an important role in affecting weather, climate, and air quality (

Cited by 14 publications

References 73 publications

Possible impact of North Atlantic sea surface temperature on decadal variability of dust activity in Gobi Desert

Possible impact of North Atlantic sea surface temperature on decadal variability of dust activity in Gobi Desert

Temporal coherence in particulate matter in East Asian outflow regions: fingerprints of ENSO and Asian dust

Analysis of the Severe Dust Process and Its Impact on Air Quality in Northern China

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