干旱区生态环境知识资源中心(Arid): Spatio-temporal analysis of trends and variability in precipitation across Morocco: Comparative analysis of recent and old non-parametric methods

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DOI	10.1016/j.jafrearsci.2022.104691
	Spatio-temporal analysis of trends and variability in precipitation across Morocco: Comparative analysis of recent and old non-parametric methods
	Bouizrou, Ismail; Aqnouy, Mourad; Bouadila, Abdelmounim
通讯作者	Bouizrou, I
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2022
卷号	196
英文摘要	In the essence of climate change, a better understanding of the variation in precipitation patterns provides in-depth knowledge of water resource management and mitigation of floods and droughts, particularly in Morocco where rainfed agriculture is predominant. This paper investigates the precipitation variability over the whole country of Morocco. To that end, a monthly precipitation dataset of 78 rain gauges with more than 40 years of observation was used to investigate the spatial-temporal variability of precipitation. Moreover, the spatio-temporal trends variation was also assessed through a comparative analysis of the various trend detection methods (both old and new tests). The new methods were used also to identify non-monotonic sub-trends. The results highlighted that (1) Morocco has experienced considerably larger variations regarding the temporal variability of precipitations and their spatial distribution during the last few decades; (2) the greatest variability of precipitation was observed moving latitudinally from humid to arid regions; (3) the annual precipitation exhibited positive and negative trends where there was no clear evidence of upward or downward trends. The significant trends are identified for 5(6,41%), 6 (7,69%), 3 (3,84%), and 65 (83%) stations from the results of the MK test, SR test, Onyutha???s method, and ITA method, respectively. (4) the MK, SR, and Onyutha methods exhibited similar trends which indicate that are in perfect concordance. The ITA method showed also some resemblance with the results of other methods even though it proved to be over-sensitive in determining trend significance; and (5) the highlands with a Mediterranean climate are prone to flooding whereas the regions with desertic and semi-arid climates are prone to drought. Overall, our findings allow policy-makers to properly design adaptation strategies for changing precipitation patterns as well as increasing extreme events (floods and droughts). Superscript/Subscript Available
英文关键词	Statistical trend method Graphical method Monotonic and non -Monotonic trend Precipitation variability Morocco
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000859856500002
WOS关键词	CLIMATE-CHANGE ; MANN-KENDALL ; EXTREME PRECIPITATION ; WATER-RESOURCES ; RAINFALL TRENDS ; YANGTZE-RIVER ; UNITED-STATES ; DETECT TREND ; TEMPERATURE ; CHINA
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393266
推荐引用方式 GB/T 7714	Bouizrou, Ismail,Aqnouy, Mourad,Bouadila, Abdelmounim. Spatio-temporal analysis of trends and variability in precipitation across Morocco: Comparative analysis of recent and old non-parametric methods[J],2022,196.
APA	Bouizrou, Ismail,Aqnouy, Mourad,&Bouadila, Abdelmounim.(2022).Spatio-temporal analysis of trends and variability in precipitation across Morocco: Comparative analysis of recent and old non-parametric methods.JOURNAL OF AFRICAN EARTH SCIENCES,196.
MLA	Bouizrou, Ismail,et al."Spatio-temporal analysis of trends and variability in precipitation across Morocco: Comparative analysis of recent and old non-parametric methods".JOURNAL OF AFRICAN EARTH SCIENCES 196(2022).