DOI: 10.1016/j.atmosenv.2018.01.016
Scopus记录号: 2-s2.0-85041477851
论文题名: Relationship between AOD and synoptic circulation over the Eastern Mediterranean: A comparison between subjective and objective classifications
作者: Bodenheimer S ; , Nirel R ; , Lensky I ; M ; , Dayan U
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 177 起始页码: 253
结束页码: 261
语种: 英语
英文关键词: AOD
; Eastern Mediterranean
; Synoptic classification
Scopus关键词: Atmospherics
; Earth atmosphere
; Aerosol optical depths
; Auto regressive models
; Circulation type classifications
; Distribution patterns
; Eastern Mediterranean
; Environmental variables
; Meteorological parameters
; Synoptic classification
; Atmospheric aerosols
; aerosol
; Article
; biomass
; comparative study
; geographic distribution
; Mediterranean Sea
; meteorology
; optical depth
; particulate matter
; priority journal
; random error
; seasonal variation
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 Eastern Mediterranean (EM) Basin is strongly affected by dust originating from two of the largest world sources: The Sahara Desert and the Arabian Peninsula. Climatologically, the distribution pattern of aerosol optical depth (AOD), as proxy to particulate matter (PM), is known to be correlated with synoptic circulation. The climatological relationship between circulation type classifications (CTCs) and AOD levels over the EM Basin (“synoptic skill”) was examined for the years 2000–2014. We compared the association between subjective (expert-based) and objective (fully automated) classifications and AOD using autoregressive models. After seasonal adjustment, the mean values of R2 for the different methods were similar. However, the distinct spatial pattern of the R2 values suggests that subjective classifications perform better in their area of expertise, specifically in the southeast region of the study area, while, objective CTCs had better synoptic skill over the northern part of the EM. This higher synoptic skill of subjective CTCs stem from their ability to identify distinct circulation types (e.g. Sharav lows and winter lows) that are infrequent but are highly correlated with AOD. Notably, a simple CTC based on seasonality rather than meteorological parameters predicted well AOD levels, especially over the south-eastern part of the domain. Synoptic classifications that are area-oriented are likely better predictors of AOD and possibly other environmental variables. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83008
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Geography, The Hebrew University of Jerusalem, Israel; Department of Statistics, The Hebrew University of Jerusalem, Israel; Department of Geography and Environment, Bar-Ilan University, Israel
Recommended Citation:
Bodenheimer S,, Nirel R,, Lensky I,et al. Relationship between AOD and synoptic circulation over the Eastern Mediterranean: A comparison between subjective and objective classifications[J]. Atmospheric Environment,2018-01-01,177