Numerical simulation with a comprehensive chemical transport model of nitrate, sulfate, and ammonium aerosol distributions over east asia--颗粒学报PARTICUOLOGY

Zhang, M. (2005). Numerical simulation with a comprehensive chemical transport model of nitrate, sulfate, and ammonium aerosol distributions over east asia. China Particuology, 3(5), 255-259. https://doi.org/10.1016/S1672-2515(07)60197-3

Numerical simulation with a comprehensive chemical transport model of nitrate, sulfate, and ammonium aerosol distributions over east asia

Meigen Zhang ^*

State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, P. R. China

10.1016/S1672-2515(07)60197-3

Volume 3, Issue 5, October 2005, Pages 255-259

Received 21 July 2005, Accepted 25 August 2005, Available online 14 December 2007.

E-mail: mgzhang@mail.iap.ac.cn

Highlights

Abstract

The transport and chemical production processes of nitrate, sulfate, and ammonium aerosols over East Asia were investigated by use of the Models-3 Community Multi-scale Air Quality (CMAQ) modeling system coupled with the Regional Atmospheric Modeling System (RAMS). For the evaluation of the model's ability in depicting their 3-dimensional concentration distributions and temporal variations, modeled concentrations of nitrate, sulfate, and ammonium aerosols are compared with the observations obtained at a ground station in Japan in March 2001 and onboard of an aircraft DC-8 on 18 and 21 March 2001 during the Transport and Chemical Evolution over the Pacific (TRACE-P) field campaign. Comparison shows that simulated values of nitrate, sulfate, and ammonium aerosols are generally in good agreement with their observed data, and the model captures most important observed features, and reproduces temporal and spatial variations of nitrate, sulfate, and ammonium aerosol concentrations reasonably well, e.g., the timing and locations of the concentration spikes of nitrate, sulfate, and ammonium aerosols are well reproduced, but large discrepancies between observed and simulated values are also clearly seen at some points and some times due to the coarse grid resolution and uncertainties of the emissions used in this study. This comparison results indicate that CMAQ is able to simulate the distributions of nitrate, sulfate, and ammonium aerosols and their related species in the troposphere over East Asia reasonably well.

Graphical abstract

Keywords

long-range transport; regional pollution; Community Multi-scale Air Quality (CMAQ); East Asia

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