Interactions between water vapor and atmospheric aerosols have key roles in air quality and climate change

Wu, Zhijun; Chen, Jie; Wang, Yu; Zhu, Yao; Liu, Yuechen; Bai, Yanping; Zhang, Yuanhang; Hu, Min

doi:10.1093/nsr/nwy063

Cited by 42 publications

(26 citation statements)

References 13 publications

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“…Aerosol liquid water (or surface‐adsorbed water) largely determines kinetics, mechanisms, and products of heterogeneous reactions (Rubasinghege & Grassian, ; Tang et al, ; Wu et al, ). Mitroo et al () found that at a given RH, N 2 O 5 uptake coefficients decreased whereas ClNO 2 production yield increased with soluble ion fractions in saline mineral dust samples.…”

Section: Resultsmentioning

confidence: 99%

“…In addition to airborne saline mineral dust particles, dry deposition of N 2 O 5 to saline topsoil may also contribute to N 2 O 5 removal and ClNO 2 production, although its effects remain to be assessed. Aerosol liquid water (or surface-adsorbed water) largely determines kinetics, mechanisms, and products of heterogeneous reactions (Rubasinghege & Grassian, 2013;Tang et al, 2017;Wu et al, 2018). Mitroo et al (2019) found that at a given RH, N 2 O 5 uptake coefficients decreased whereas ClNO 2 production yield increased with soluble ion fractions in saline mineral dust samples.…”

Section: Atmospheric Implications 341 Implications For Heterogeneomentioning

confidence: 99%

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Hygroscopic Properties of Saline Mineral Dust From Different Regions in China: Geographical Variations, Compositional Dependence, and Atmospheric Implications

Tang

Zhang

et al. 2019

JGR Atmospheres

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Saline mineral dust particles, emitted from saline topsoil in arid and semiarid regions, contribute significantly to tropospheric aerosol particles. However, hygroscopic properties of saline mineral dust particles, especially for those found in regions other than North America, are poorly understood. In this work we investigated hygroscopic properties of 13 saline mineral dust samples collected from different locations via measuring sample mass change at different relative humidity (RH; up to 90%), and measured their chemical and mineralogical compositions using ion chromatography and X‐ray diffraction. The mass growth factors at 90% RH, defined as the sample mass at 90% RH relative to that at <1% RH, were found to display large geographical variations, spanning from ~1.02 to 6.7, and the corresponding single hygroscopicity parameters (κ) were derived to be in the range of <0.01 to >1.0. The saline components (mainly Na+, Cl−, and SO42−) contained by saline mineral dust particles largely determined their hygroscopicity, and the predicted mass growth factors at 90% RH using an aerosol thermodynamic model (ISORROPIA‐II), agreed with measured values within 20% for most of samples examined, although larger discrepancies also occurred for three samples. Our results improve our understanding in hygroscopicity of saline mineral dust particles and thus their heterogeneous chemistry and ability to serve as cloud condensation nuclei to form cloud droplets.

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Section: Resultsmentioning

confidence: 99%

Section: Atmospheric Implications 341 Implications For Heterogeneomentioning

confidence: 99%

Hygroscopic Properties of Saline Mineral Dust From Different Regions in China: Geographical Variations, Compositional Dependence, and Atmospheric Implications

Tang

Zhang

et al. 2019

JGR Atmospheres

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“…Aerosols and water vapour are two major atmospheric components that alter the radiation that reaches the Earth's surface on clear-sky days through scattering and absorption processes [3][4][5]. Their effects on the surface solar radiation are assorted, causing, for example, diurnal and seasonal temperature oscillations [6], changes in the surface energy balance [7] or the water cycle [8][9][10][11]. In addition, atmospheric water vapour influences the radiometric properties of the aerosol and, therefore, their effects on the downwelling surface solar radiation, impacting climate and climate change.…”

Section: Introductionmentioning

confidence: 99%

Global Spatial and Temporal Variation of the Combined Effect of Aerosol and Water Vapour on Solar Radiation

et al. 2021

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This study aims to calculate the combined and individual effects of the optical thickness of aerosols (AOT) and precipitable water vapour (PWV) on the solar radiation reaching the Earth’s surface at a global scale and to analyse its spatial and temporal variation. For that purpose, a novel but validated methodology is applied to CERES SYN1deg products for the period 2000–2019. Spatial distributions of AOT and PWV effects, both individually and combined, show a close link with the spatial distributions of AOT and PWV. The spatially averaged combined effect results in a −13.9% reduction in irradiance, while the average AOT effect is −2.3%, and the PWV effect is −12.1%. The temporal analysis focuses on detecting trends in the anomalies. The results show overall positive trends for AOT and PWV. Consequently, significant negative overall trends are found for the effects. However, significant positive trends for the individual AOT and the combined AOT-PWV effects are found in specific regions, such as the eastern United States, Europe or Asia, indicating successful emission control policies in these areas. This study contributes to a better understanding of the individual and combined effects of aerosols and water vapour on solar radiation at a global scale.

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“…Atmospheric water vapor is of critical importance to most to the ACCP objectives, through its influence on clouds, convection as well as in modifying aerosol optical properties (e.g. Wu et al, 2018, Zu et al, 2019. High quality water vapor data products are currently available from many satellite sensors operating in various wavelength regions.…”

Section: Water Vapormentioning

confidence: 99%

The Spectral Nature of Earth’s Reflected Radiation: Measurement and Science Applications

Stephens

Калашникова

Gristey

et al. 2021

Front. Remote Sens.

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This paper introduces the aerosol, clouds, convection and precipitation (ACCP) program that is currently in the process of defining a number of measurement objectives for NASA that are to be implemented toward the end of the current decade. Since a (solar) visible-shortwave infrared (VSWIR) spectrometer is being considered as part of the ACCP architecture, illustrations of the different ways these measurements will contribute to this program and how these measurements can be expected to advance the science objectives of ACCP are highlighted. These contributions range from 1) constraining cloud radiative process and related estimates of radiative fluxes, 2) scene discrimination, 3) providing aerosol and cloud optical properties, and 4) providing other enhanced information such as the phase of water in clouds, and total column water vapor. The spectral measurements also offer new capabilities that will further enhance the ACCP science such as the discrimination of dust aerosol and the potential for the vertical profiling cloud droplet size in shallow clouds. The areas where the maturity of approaches is lacking is also highlighted as a way of emphasizing research topics to be a focus in the coming years.

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Interactions between water vapor and atmospheric aerosols have key roles in air quality and climate change

Cited by 42 publications

References 13 publications

Hygroscopic Properties of Saline Mineral Dust From Different Regions in China: Geographical Variations, Compositional Dependence, and Atmospheric Implications

Hygroscopic Properties of Saline Mineral Dust From Different Regions in China: Geographical Variations, Compositional Dependence, and Atmospheric Implications

Global Spatial and Temporal Variation of the Combined Effect of Aerosol and Water Vapour on Solar Radiation

The Spectral Nature of Earth’s Reflected Radiation: Measurement and Science Applications

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