DOI: 10.1002/2017MS000936
Scopus记录号: 2-s2.0-85029360690
论文题名: Development of a global aerosol model using a two-dimensional sectional method: 1. Model design
作者: Matsui H
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期: 4 起始页码: 1921
结束页码: 1947
语种: 英语
英文关键词: Bins
; Climate models
; Condensation
; Mixing
; Size distribution
; Black carbon
; Global aerosol
; mixnig state
; Number concentration
; Sectional methods
; Aerosols
; absorption
; aerosol
; atmospheric modeling
; black carbon
; climate modeling
; coagulation
; condensation
; global climate
; simulation
; size distribution
; two-dimensional modeling
英文摘要: This study develops an aerosol module, the Aerosol Two-dimensional bin module for foRmation and Aging Simulation version 2 (ATRAS2), and implements the module into a global climate model, Community Atmosphere Model. The ATRAS2 module uses a two-dimensional (2-D) sectional representation with 12 size bins for particles from 1 nm to 10 μm in dry diameter and 8 black carbon (BC) mixing state bins. The module can explicitly calculate the enhancement of absorption and cloud condensation nuclei activity of BC-containing particles by aging processes. The ATRAS2 module is an extension of a 2-D sectional aerosol module ATRAS used in our previous studies within a framework of a regional three-dimensional model. Compared with ATRAS, the computational cost of the aerosol module is reduced by more than a factor of 10 by simplifying the treatment of aerosol processes and 2-D sectional representation, while maintaining good accuracy of aerosol parameters in the simulations. Aerosol processes are simplified for condensation of sulfate, ammonium, and nitrate, organic aerosol formation, coagulation, and new particle formation processes, and box model simulations show that these simplifications do not substantially change the predicted aerosol number and mass concentrations and their mixing states. The 2-D sectional representation is simplified (the number of advected species is reduced) primarily by the treatment of chemical compositions using two interactive bin representations. The simplifications do not change the accuracy of global aerosol simulations. In part 2, comparisons with measurements and the results focused on aerosol processes such as BC aging processes are shown. © 2017. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75749
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan; Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, United States
Recommended Citation:
Matsui H. Development of a global aerosol model using a two-dimensional sectional method: 1. Model design[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(4)