干旱区生态环境知识资源中心(Arid): Space and time variability of meteorological drought in Syria

Arid

DOI	10.1007/s11600-020-00501-5
	Space and time variability of meteorological drought in Syria
	Mohammed, Safwan; Alsafadi, Karam; Al-Awadhi, Talal; Sherief, Youssef; Harsanyie, Endre; El Kenawy, Ahmed M.
通讯作者	El Kenawy, AM
来源期刊	ACTA GEOPHYSICA
ISSN	1895-6572
EISSN	1895-7455
出版年	2020
卷号	68 期号:6 页码:1877-1898
英文摘要	This study assesses the spatial and temporal characteristics (e.g., frequency, intensity, spatial extent) of meteorological drought in Syria. Specifically, drought was characterized using the observed rainfall data from 36 rain gauges spanning the period between 1990 and 2010 and covering the main climatic regions in Syria (i.e., Mediterranean, arid, semiarid and mountainous). Meteorological drought was assessed using the standardized precipitation index (SPI) at 12-month timescale, allowing for detecting the impacts of climate variability on agricultural droughts. The dominant modes of drought were defined using an S-mode of the principal component analysis. To assess the links between meteorological drought evolution and vegetation greening in Syria, the time series of SPI were correlated with the normalized difference vegetation index (NDVI). Time series of NDVI were retrieved from the remotely sensed National Oceanic and Atmospheric Administration Advanced Very High-Resolution Radiometer (NOAA/AVHRR) sensor at a spatial resolution of 25 km for the common period 1990-2010. Trend analysis suggests a statistically significant increase in the frequency and intensity of drought at 12-month timescale. The observed intensification of meteorological drought is mostly associated with the increase in mild and moderate droughts, relative to extremes and very extreme droughts. Results also suggest a statistically significant decrease (p < 0.05) in vegetation greening over Syria during the study period, especially in the eastern parts of the country. Our results demonstrate that the decrease in vegetation cover can directly be linked to the anomalous drought events, with Pearson' r coefficients generally above 0.6. This dependency was more highlighted during wintertime for the Mediterranean vegetation and in northeastern portions of the country. Overall, the increase in the frequency and intensity of meteorological drought, combined with a series of unrest and political instability, have drastic impacts on the agricultural sector in Syria, with serious implications for crop yield.
英文关键词	SPI NDVI Spatiotemporal patterns Climate change NOAA-AVHRR Vegetation Syria
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000579726800001
WOS关键词	STANDARDIZED PRECIPITATION INDEX ; CLIMATE-CHANGE PROJECTIONS ; MEDITERRANEAN REGION ; MIDDLE-EAST ; ATMOSPHERIC CIRCULATION ; LAGRANGIAN ANALYSIS ; FERTILE CRESCENT ; CIVIL-WAR ; TRENDS ; SPI
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326876
作者单位	[Mohammed, Safwan; Harsanyie, Endre] Univ Debrecen, Inst Land Utilizat Technol & Reg Planning, H-4032 Debrecen, Hungary; [Alsafadi, Karam] Alexandria Univ, Fac Arts, Dept Geog & GIS, Alexandria 25435, Egypt; [Al-Awadhi, Talal; Sherief, Youssef; El Kenawy, Ahmed M.] Sultan Qaboos Univ, Dept Geog, Muscat, Oman; [Sherief, Youssef] Zagazig Univ, Fac Arts, Dept Geog, Zagazig, Egypt; [Harsanyie, Endre] Inst Agr Engn, Natl Agr Res & Innovat Ctr, Tessedik Samuel 4, H-2100 Godollo, Hungary; [El Kenawy, Ahmed M.] Mansoura Univ, Dept Geog, Mansoura 35516, Egypt
推荐引用方式 GB/T 7714	Mohammed, Safwan,Alsafadi, Karam,Al-Awadhi, Talal,et al. Space and time variability of meteorological drought in Syria[J],2020,68(6):1877-1898.
APA	Mohammed, Safwan,Alsafadi, Karam,Al-Awadhi, Talal,Sherief, Youssef,Harsanyie, Endre,&El Kenawy, Ahmed M..(2020).Space and time variability of meteorological drought in Syria.ACTA GEOPHYSICA,68(6),1877-1898.
MLA	Mohammed, Safwan,et al."Space and time variability of meteorological drought in Syria".ACTA GEOPHYSICA 68.6(2020):1877-1898.