DOI: 10.1002/2014MS000421
Scopus记录号: 2-s2.0-85027950807
论文题名: Evaluations of tropospheric aerosol properties simulated by the community earth system model with a sectional aerosol microphysics scheme
作者: Yu P ; , Toon O ; B ; , Bardeen C ; G ; , Mills M ; J ; , Fan T ; , English J ; M ; , Neely R ; R
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2015
卷: 7, 期: 2 起始页码: 865
结束页码: 914
语种: 英语
英文关键词: Atmospheric aerosols
; Bins
; Fog
; Models
; Particle size
; Satellite imagery
; Satellites
; Sulfur compounds
; Aerosol optical depths
; Black carbon aerosol
; Ground based measurement
; Radiative properties
; Satellite observations
; Secondary organic aerosols
; Spatial-temporal distribution
; Tropospheric aerosols
; Aerosols
; AERONET
; aerosol composition
; aerosol property
; airborne survey
; atmospheric modeling
; cost analysis
; coupling
; ground-based measurement
; MISR
; MODIS
; optical depth
; particle size
; radiative forcing
; satellite data
; spatiotemporal analysis
; troposphere
; United States
英文摘要: A sectional aerosol model (CARMA) has been developed and coupled with the Community Earth System Model (CESM1). Aerosol microphysics, radiative properties, and interactions with clouds are simulated in the size-resolving model. The model described here uses 20 particle size bins for each aerosol component including freshly nucleated sulfate particles, as well as mixed particles containing sulfate, primary organics, black carbon, dust, and sea salt. The model also includes five types of bulk secondary organic aerosols with four volatility bins. The overall cost of CESM1-CARMA is approximately 2.6 times as much computer time as the standard three-mode aerosol model in CESM1 (CESM1-MAM3) and twice as much computer time as the seven-mode aerosol model in CESM1 (CESM1-MAM7) using similar gas phase chemistry codes. Aerosol spatial-temporal distributions are simulated and compared with a large set of observations from satellites, ground-based measurements, and airborne field campaigns. Simulated annual average aerosol optical depths are lower than MODIS/MISR satellite observations and AERONET observations by 32%. This difference is within the uncertainty of the satellite observations. CESM1/CARMA reproduces sulfate aerosol mass within 8%, organic aerosol mass within 20%, and black carbon aerosol mass within 50% compared with a multiyear average of the IMPROVE/EPA data over United States, but differences vary considerably at individual locations. Other data sets show similar levels of comparison with model simulations. The model suggests that in addition to sulfate, organic aerosols also significantly contribute to aerosol mass in the tropical UTLS, which is consistent with limited data. © 2015. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76033
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: Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, CO, United States; Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States; National Center for Atmospheric Research, Boulder, CO, United States; Now at College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; National Centre for Atmospheric Science, Institute of Climate and Atmospheric Science, School of the Earth and Environment, University of Leeds, Leeds, United Kingdom
Recommended Citation:
Yu P,, Toon O,B,et al. Evaluations of tropospheric aerosol properties simulated by the community earth system model with a sectional aerosol microphysics scheme[J]. Journal of Advances in Modeling Earth Systems,2015-01-01,7(2)