Attribution of the March 2021 exceptional dust storm in North China

Hu, Zhiyuan; Ma, Yuanyuan; Jin, Qinjian; Idrissa, Nkurunziza Fabien; Huang, Jianping; Dong, Wenjie

doi:10.1175/bams-d-22-0151.1

Cited by 11 publications

(2 citation statements)

References 10 publications

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“…Dust weather, resulting from regional dust surges, poses a formidable threat to socio-economic development, natural ecological environment, as well as human health and safety (e.g., Zhao et al, 2020;Yin et al, 2021;Li et al, 2023). The Gobi Desert in East Asian, especially for the Mongolian Plateau and North China, is a major source of dust (Chen et al, 2023;Hu et al, 2023), contributing approximately 70% of Asia's total dust emissions (Zhang et al, 2003). Given that China is one of the countries most profoundly impacted by dust disasters (Fan et al, 2018), exploring the variations in dust disasters in China is of significant scientific and practical importance.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effects of previous winter NAO and ENSO on the spring dust activities in North China

Xu,

Wang,

et al. 2024

Preprint

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Abstract. Dust plays an important role in influencing global weather and climate via impacting the Earth's radiative balance. Based on the atmospheric and oceanic datasets during 1980–2022, the impacts of preceding winter North Atlantic Oscillation (NAO) and El Niño-Southern Oscillation (ENSO) on the following spring dust activities over North China are explored. It is found that both NAO and ENSO exert significant effects in influencing the dust activities over North China, particularly during their negative phases. A synergistic influence on the dust activities in North China is observed when both NAO and ENSO are in negative phase, with their combined impacts exceeding that of either factor alone. The previous winter NAO exhibits significant impacts on the sea surface temperatures (SST) in the North Atlantic, associating with an anomalous SST tripole pattern. Owing to the persistence of SST, these anomalies can extend into the following spring, when anomalous atmospheric teleconnection wave trains would be induced, thereby influencing the dust activities in North China. ENSO, on the one hand, directly impacts dust activities in North China by modulating the circulation in the Western North Pacific (WNP). Moreover, ENSO enhances the NAO's effect on the North Atlantic SST, explaining their synergistic effects on the dust activities over North China. This study explains the combined role of NAO and ENSO on the dust weather over North China, providing one season ahead signals for the forecast of spring dust activities in North China.

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Section: Introductionmentioning

confidence: 99%

Synergistic effects of previous winter NAO and ENSO on the spring dust activities in North China

Xu,

Wang,

et al. 2024

Preprint

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“…The main synoptic-scale systems associated with Asian dust outbreaks are Mongolian cyclones, cold fronts, and Mongolian cold high-pressures [20,21]. Strong pressure gradients between Mongolian cyclones and the high-pressure systems behind them cause strong winds, and wind speed and direction are key factors affecting dust transport [22,23]. Under the influence of long-range transport, it can reach not only the vast areas of northern China but also the Korean peninsula, the Japanese archipelago, the Pacific, and even North America [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Long-Range Transport of a Dust Event and Impact on Marine Chlorophyll-a Concentration in April 2023

Li,

Wang

2024

Remote Sensing

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Dust aerosols serve as a crucial nutrient source to the oceans and profoundly influence marine ecosystems. This study used satellite and ground observations to explore a strong dust event on 9–13 April 2023, emanating from the Gobi Desert, shared by Mongolia and China’s Inner Mongolia region. We investigated the deposition of dust particles and their effects on marine phytoplankton communities. Our findings revealed that the dust event was intense, enduring, and expansive, illustrated by hourly PM10 concentrations peaking at 5055 µg/m3 near the source and consistently exceeding 1000 µg/m3, even at considerable distances. The dust traveled along two different trajectories and was deposited in the same area of the Northwest Pacific. Total dust deposition in the study area (37°N–42°N, 145°E–165°E) was 79.88 mg/m2 from 13 to 18 April, much higher than the 2019–2022 average deposition of 33.03 mg/m2 for the same period. With dust deposition, the observed mean chlorophyll-a concentrations in the area increased to 2.78 mg/m3 on 14 April, an extraordinary 692% increase above the long-term average. These results highlight the profound impact of dust on the productivity of marine phytoplankton communities by inputting more nutrients into the ocean through different pathways.

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Relative contributions of component-segregated aerosols to trends in aerosol optical depth over land (2007–2019): Insights from CAMS aerosol reanalysis

Zhao,

Gui,

Yao

et al. 2024

Atmospheric Environment

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Attribution of the March 2021 exceptional dust storm in North China

Abstract: The post-1980 regional climate change increased dust AOD by +12.5 ± 15.0% and +43.6 ± 31.2% over the source and downstream areas respectively during a record-breaking dust storm in March 2021 in North China.

Cited by 11 publications

References 10 publications

Synergistic effects of previous winter NAO and ENSO on the spring dust activities in North China

Synergistic effects of previous winter NAO and ENSO on the spring dust activities in North China

Long-Range Transport of a Dust Event and Impact on Marine Chlorophyll-a Concentration in April 2023

Relative contributions of component-segregated aerosols to trends in aerosol optical depth over land (2007–2019): Insights from CAMS aerosol reanalysis

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