DOI: 10.1016/j.atmosres.2017.09.016
Scopus记录号: 2-s2.0-85032732134
论文题名: Spatial and temporal analysis of drought variability at several time scales in Syria during 1961–2012
作者: Mathbout S. ; Lopez-Bustins J.A. ; Martin-Vide J. ; Bech J. ; Rodrigo F.S.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 200 起始页码: 153
结束页码: 168
语种: 英语
英文关键词: Climate regionalization
; Drought
; SPEI
; SPI
; Syrian conflict
Scopus关键词: Principal component analysis
; Spatial variables measurement
; Time measurement
; Climate regionalization
; Frequency distributions
; Spatial and temporal analysis
; Spatial and temporal scale
; Spatial and temporal variability
; Spatiotemporal characteristics
; SPEI
; Syrian conflict
; Drought
; drought
; evapotranspiration
; precipitation assessment
; principal component analysis
; regional climate
; spatiotemporal analysis
; temporal variation
; timescale
; Syrian Arab Republic
英文摘要: This paper analyses the observed spatiotemporal characteristics of drought phenomenon in Syria using the Standardised Precipitation Index (SPI) and the Standardised Precipitation Evapotranspiration Index (SPEI). Temporal variability of drought is calculated for various time scales (3, 6, 9, 12, and 24 months) for 20 weather stations over the 1961–2012 period. The spatial patterns of drought were identified by applying a Principal Component Analysis (PCA) to the SPI and SPEI values at different time scales. The results revealed three heterogeneous and spatially well-defined regions with different temporal evolution of droughts: 1) Northeastern (inland desert); 2) Southern (mountainous landscape); 3) Northwestern (Mediterranean coast). The evolutionary characteristics of drought during 1961–2012 were analysed including spatial and temporal variability of SPI and SPEI, the frequency distribution, and the drought duration. The results of the non-parametric Mann–Kendall test applied to the SPI and SPEI series indicate prevailing significant negative trends (drought) at all stations. Both drought indices have been correlated both on spatial and temporal scales and they are highly comparable, especially, over a 12 and 24 month accumulation period. We concluded that the temporal and spatial characteristics of the SPI and SPEI can be used for developing a drought intensity - areal extent - and frequency curve that assesses the variability of regional droughts in Syria. The analysis of both indices suggests that all three regions had a severe drought in the 1990s, which had never been observed before in the country. Furthermore, the 2007–2010 drought was the driest period in the instrumental record, happening just before the onset of the recent conflict in Syria. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109010
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Applied Physics-Meteorology, University of Barcelona, Martí i Franquès 1, Barcelona, 08028, Spain; Climatology Group, Department of Geography, University of Barcelona, Montalegre 6, Barcelona, 08001, Spain; Department of Chemistry and Physics, University of Almeria, Spain
Recommended Citation:
Mathbout S.,Lopez-Bustins J.A.,Martin-Vide J.,et al. Spatial and temporal analysis of drought variability at several time scales in Syria during 1961–2012[J]. Atmospheric Research,2018-01-01,200