The influence of dusts on radiation and temperature over the eastern Asia with a regional climate model

Liu, Xin; Chen, Shuyi; Guo, Zijia; Zhou, Haijiang; Chen, Yonghang; Kang, Yanming; Liu, Qiong; Huang, Guan; Liu, Tongqiang; Chen, Chunmei; He, Qing

doi:10.1016/j.scitotenv.2021.148351

Cited by 12 publications

(11 citation statements)

References 105 publications

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“…The simulation was conducted using the regional climate model RegCM 4.6, a sigma vertical coordinate model (18 layers), within the hydrostatic version of the 5th generation of the Mesoscale Model MM5 as the dynamical core, developed by the Abdus Salam International Centre for Theoretical Physics (ICTP). Unlike previous versions, RegCM 4.6 improved in describing physical processes, including new land schemes and additional Frontiers in Environmental Science frontiersin.org modifications of cumulus convection, radiative transfer, and planetary boundary layer schemes (Liu et al, 2021).…”

Section: The Regcm 46 Model Description and Evaluationmentioning

confidence: 99%

“…In RegCM 4.6, the aerosol scheme included dust, sea salt, black/ anthropic carbon, and sulfate aerosols. It also included atmospheric wind advection, turbulent diffusion, vertical transport of deep convection, surface emission, dry and wet removal processes, and chemical conversion mechanism of gas and liquid phases (Solmon et al, 2006;Liu et al, 2021). The shortwave radiative transfer was calculated using the Community Climate Model (CCM3), which followed the δ-Eddington approximation stated by Kiehl et al (1998).…”

Section: The Regcm 46 Model Description and Evaluationmentioning

confidence: 99%

“…Data distribution was relatively concentrated with the root-mean-square error (RMSE) of 0.17. Generally, the model underestimated the AOD with the mean absolute error (MAE) of 0.11 and the relative mean bias (RMB) of 0.80 (Liu et al, 2021).…”

Section: The Regcm 46 Model Description and Evaluationmentioning

confidence: 99%

“…Dust also reduces visibility (Watson, 2002), exacerbates air quality (Salvador et al, 2019), and affects atmospheric circulation by changing atmospheric heating in the middle and upper troposphere (Alizadeh-Choobari et al, 2014). Overall, dust has adverse effects on human health and climate change at regional and even global scales (Huang et al, 2014;Zhao et al, 2018;Liu et al, 2021). Therefore, systematic studies on the characteristics and radiation effects of dust aerosols during intense dust storms are necessary to develop strategies for mitigating the impacts of dust storms on radiation balance, ecosystems, and human health (Middleton, 2017;Middleton & Kang, 2017).…”

Section: Introductionmentioning

confidence: 99%

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The influence of dust aerosols on solar radiation and near-surface temperature during a severe duststorm transport episode

Huang

Zhou²,

Guo³

et al. 2023

Front. Environ. Sci.

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In the west of China, a rarely seen black storm, with a high intensity of dust aerosols and a large area of influence, occurred from April 26–29, 2015, for the first time, after more than 30 years. Based on the regional climate model (RegCM version 4.6), combined with Moderate Resolution Imaging Spectroradiometer (MODIS) satellite retrieval, meteorological, and environmental data, this work presents the pollution situation, weather background, and backward trajectory during the black storm process. In addition, we analyzed the temporal–spatial distribution of aerosol optical depth (AOD) and the impacts of dust aerosols on solar radiation and near-surface temperature under this extreme weather condition. We discovered that this black storm process was caused by the surface cold high pressure and frontal transit under the background of the upper-air circulation of “two troughs and two ridges.” The pollutants primarily from Xinjiang and the Central Asia region, along with the airflow, entered northern Xinjiang almost simultaneously with the southwest airflow, piled up along the Tianshan Mountains, and then crossed the mountains into southern Xinjiang. In addition, the areas with high AOD were mostly in the desert regions and basins, whereas the low-value areas were mountainous areas with relatively high altitudes due to the effect of geographical and climatic conditions. The AOD from RegCM 4.6 was generally lower, unlike the MODIS AOD. Moreover, the dust aerosols from this black storm caused a significant decline in net short-wave radiation (NSR) both at the top of the atmosphere (TOA) and surface. The cooling effect was more significant in the region with high AOD. For the areas where the AOD was higher than 0.7, the net short-wave radiative forcing of dust aerosols (ADRF) at the surface was above −70 W•m−2; on the other hand, the cooling effect at the TOA was not as significant as that at the surface, with the ADRFTOA being only about a quarter of the ADRFSUR. The ADRFSUR could reduce the near-surface temperature, and the region with a large temperature drop corresponded to the high-value areas of ADRFSUR/AOD. During this black storm, the near-surface temperature response to dust aerosols reached 0.40°C–2.9°C with a significant temperature drop because of cold air.

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Section: The Regcm 46 Model Description and Evaluationmentioning

confidence: 99%

Section: The Regcm 46 Model Description and Evaluationmentioning

confidence: 99%

Section: The Regcm 46 Model Description and Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The influence of dust aerosols on solar radiation and near-surface temperature during a severe duststorm transport episode

Huang

Zhou²,

Guo³

et al. 2023

Front. Environ. Sci.

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“…Liu et al. (2021) studied the dust's impact on temperature in East Asia during the primary months of dust occurrence (March to May) from 2011 to 2018 and found that dust aerosols cooled the surface locally by −0.7°C. In contrast, Chen et al.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Daytime and Nighttime Impacts of Dust Aerosols on Surface Energy and Meteorological Fields in Northwest China

Wang

Yin

et al. 2022

JGR Atmospheres

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Dust aerosols pose non‐negligible impacts on regional and global climate, particularly over northwest China (NWC), where dust events frequently occur. Here, six dust events with different intensities occurred from 2014 to 2019 in NWC were simulated by the Weather Research and Forecasting model coupled to Chemistry (WRF‐Chem) to quantitatively evaluate the contributions of dust aerosols to radiation fluxes, surface energy, and meteorology, with specific consideration to the distinctions between daytime and nighttime. The results show that the contributions of dust aerosols to surface energy and meteorology were significantly affected by dust concentrations and dust layer heights and exhibited diurnal variation. In the case with high dust concentration and low dust layer height, dust aerosols increased the surface energy during the nighttime but decreased in the daytime, and the increase was much greater than the decrease. As a result, dust aerosols increase surface energy (0.06 W/m2 in the dust source region; 0.13 W/m2 in the dust affected region (DAR)) and surface temperature (0.0088°C in the DSR; 0.0781°C in the DAR) and decrease surface relative humidity (−0.053% in the DSR; −0.205% in the DAR) throughout the whole day. In contrast, dust causes opposite impacts on surface meteorology throughout the whole day due to the nighttime warming effect from the dust events with low dust concentration and high dust layer height is lesser than the daytime cooling effect. The study provides scientific insights for improving our understanding of dust aerosols‐regional meteorology interaction.

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Modeling a severe wintertime Asian dust event observed in the East Asia region: Sensitivity of the WRF-Chem dust emission schemes

Lee

2022

Atmospheric Pollution Research

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The influence of dusts on radiation and temperature over the eastern Asia with a regional climate model

Cited by 12 publications

References 105 publications

The influence of dust aerosols on solar radiation and near-surface temperature during a severe duststorm transport episode

The influence of dust aerosols on solar radiation and near-surface temperature during a severe duststorm transport episode

Understanding the Daytime and Nighttime Impacts of Dust Aerosols on Surface Energy and Meteorological Fields in Northwest China

Modeling a severe wintertime Asian dust event observed in the East Asia region: Sensitivity of the WRF-Chem dust emission schemes

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