DOI: 10.1016/j.atmosenv.2014.03.056
Scopus记录号: 2-s2.0-84899128767
论文题名: A corrected formulation of the Multilayer Model (MLM) for inferring gaseous dry deposition to vegetated surfaces
作者: Saylor R ; D ; , Wolfe G ; M ; , Meyers T ; P ; , Hicks B ; B
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 92 起始页码: 141
结束页码: 145
语种: 英语
英文关键词: Canopy
; CASTNet
; Dry deposition
; Multi-layer model
; Nitric acid
; Ozone
; Sulfur dioxide
Scopus关键词: Multilayers
; Nitric acid
; Ozone
; Sulfur dioxide
; Boundary layer resistance
; Canopy
; CASTNet
; Dry deposition
; Meteorological measurements
; Multi-layer integration
; Multilayer models
; U.S. Environmental Protection Agency
; Deposition
; nitric acid
; nitrogen
; ozone
; sulfur dioxide
; atmospheric modeling
; boundary layer
; canopy exchange
; dry deposition
; nitric acid
; ozone
; radiative transfer
; sulfur dioxide
; vegetation cover
; article
; boundary layer
; calculation
; canopy
; dry deposition
; environmental protection
; meteorology
; multilayer model
; priority journal
; United States
; United States
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The Multilayer Model (MLM) has been used for many years to infer dry deposition fluxes from measured trace species concentrations and standard meteorological measurements for national networks in the U.S., including the U.S. Environmental Protection Agency's Clean Air Status and Trends Network (CASTNet). MLM utilizes a resistance analogy to calculate deposition velocities appropriate for whole vegetative canopies, while employing a multilayer integration to account for vertically varying meteorology, canopy morphology and radiative transfer within the canopy. However, the MLM formulation, as it was originally presented and as it has been subsequently employed, contains a non-physical representation related to the leaf-level quasi-laminar boundary layer resistance that affects the calculation of the total canopy resistance. In this note, the non-physical representation of the canopy resistance as originally formulated in MLM is discussed and a revised, physically consistent, formulation is suggested as a replacement. The revised canopy resistance formulation reduces estimates of HNO3 deposition velocities by as much as 38% during mid-day as compared to values generated by the original formulation. Inferred deposition velocities for SO2 and O3 are not significantly altered by the change in formulation (<3%). Inferred deposition loadings of oxidized and total nitrogen from CASTNet data may be reduced by 10-20% and 5-10%, respectively, for the Eastern U. S. when employing the revised formulation of MLM as compared to the original formulation. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81118
Appears in Collections: 气候变化事实与影响
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作者单位: NOAA Air Resources Laboratory, Atmospheric Turbulence and Diffusion Division, 456 S. Illinois Ave., Oak Ridge, TN 37830, United States; NASA Goddard Space Flight Center, Atmospheric Chemistry and Dynamics Laboratory, Greenbelt, MD 20771, United States; Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, MD 21250, United States; Metcorps, Norris, TN 37828, United States
Recommended Citation:
Saylor R,D,, Wolfe G,et al. A corrected formulation of the Multilayer Model (MLM) for inferring gaseous dry deposition to vegetated surfaces[J]. Atmospheric Environment,2014-01-01,92