Growth of aqueous sulphuric acid droplets as a function of relative humidity

Nair, P. V.; Vohra, K.G.

doi:10.1016/0021-8502(75)90094-4

Cited by 87 publications

(32 citation statements)

References 10 publications

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“…At relative humidities of 75 to 80%, which prevailed in the ambient air during the study period, the aerosol would contain 30% H 2 SO 4 and 70% water, i.e. have a density of 1.26 g cm" 3 (Nair and Vohra, 1975). The inlet air stream is warmed to near a room temperature of 20°C (or to a relative humidity near 2%).…”

mentioning

confidence: 99%

An experimental investigation of Arctic haze at Alert, N.W.T., March 1985

et al. 1988

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mentioning

confidence: 99%

An experimental investigation of Arctic haze at Alert, N.W.T., March 1985

et al. 1988

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“…The mechanisms that control aerosol nucleation include homogeneous binary or ternary nucleation (Nair and Vohra, 1975;Coffman and Hegg, 1995) and ion-enhanced nucleation (Yu, 2006). Here we discuss the parameterization on homogeneous binary nucleation from water and sulfuric vapors as an example.…”

Section: Other Processes and Diagnostic Parametersmentioning

confidence: 99%

A statistical–numerical aerosol parameterization scheme

2013

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Abstract.A new modal aerosol parameterization scheme, the statistical-numerical aerosol parameterization (SNAP), was developed for studying aerosol processes and aerosolcloud interactions in regional or global models. SNAP applies statistical fitting on numerical results to generate accurate parameterization formulas without sacrificing details of the growth kernel. Processes considered in SNAP include fundamental aerosol processes as well as processes related to aerosol-cloud interactions. Comparison of SNAP with numerical solutions, analytical solutions, and binned aerosol model simulations showed that the new method performs well, with accuracy higher than that of the high-order numerical quadrature technique, and with much less computation time. The SNAP scheme has been implemented in regional air quality models, producing results very close to those using binned-size schemes or numerical quadrature schemes.

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“…To consider these changes, an iterative scheme developed by Shettle and Fenn (1979) and extended for coated spheres by Blanchet and List (1983) is adopted here to infer the wetted aerosol sizes and effective indices of refraction. The observed relation between water uptake and water activity for various types of aerosols and sulphuric acid (Hanel, 1976;Nair and Vohra, 1975) is used in the model.…”

Section: Chemical Species and Solubilitymentioning

confidence: 99%

“…The classification of chemical compound and the index of refraction are adopted from Shettle and Fenn (1979), except for the pure sulphuric acid case which is taken from Nair and Vohra (1975). In the moist environment, the water activity of each aerosol component follows the measurements of HQnel(1976), defined as urban, maritime and continental types.…”

Section: Polydispersed Particlesmentioning

confidence: 99%