干旱区生态环境知识资源中心(Arid): Changing Climate Over Chad: Is the Rainfall Over the Major Cities Recovering?

Arid

DOI	10.1029/2019EA000619
	Changing Climate Over Chad: Is the Rainfall Over the Major Cities Recovering?
	Pattnayak, Kanhu Charan 1,2; Abdel-Lathif, Ahmat Younous 3; Rathakrishnan, K., V 2; Singh, Muskan 4; Dashs, Renuka 5; Maharana, Pyarimohan 6
通讯作者	Maharana, Pyarimohan
来源期刊	EARTH AND SPACE SCIENCE
ISSN	2333-5084
出版年	2019
卷号	6 期号:7 页码:1149-1160
英文摘要	Chad is the largest country of the Sahel region with different climatic zones, varying from arid in the north to tropical in the south. These climatic zones respond differently to climate change signals. Therefore, their detection over major cities, which are scattered within different climatic zones, is of utmost importance. The changes in hydroclimatic fields such as rainfall and temperature were examined over the major cities in various regions for the period 1950 to 2014. Rainfall shows a significant decreasing trend especially over cities close to Lake Chad (Lere, Mondou, Mongo, and Sarh), whereas no significant trend is observed for cities farther from the Lake. However, a consistently increasing trend in temperature is found across all cities. The cities in the north (Faya, Abeche, and Ati) receive far less rainfall than those located in southern Chad. All cities (except Faya and Lere) received higher rainfall during 1950-1965 (wet period), entering a dry regime between 1966 and 1990 (dry period) and subsequently recovering rainfall totals, toward previous levels, between 1991 and 2014 (recovery phase). A substantial rise in air temperature is observed after 1980-1985, reflecting the gradual rise of temperature in recent times. In summary, rainfall is recovering from a dry regime and temperature is rising over all the major cities of Chad. More researches in this region is needed to develop local scale mitigation strategies and adaptation technology.
类型	Article
语种	英语
国家	England ; Chad ; India
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000480595000009
WOS关键词	WEST-AFRICAN MONSOON ; DAILY PRECIPITATION INDEXES ; SUMMER RAINFALL ; NORTH-AFRICA ; SOUTH-AFRICA ; VARIABILITY ; TRENDS ; TEMPERATURES ; EXTREMES ; MAXIMUM
WOS类目	Astronomy & Astrophysics ; Geosciences, Multidisciplinary
WOS研究方向	Astronomy & Astrophysics ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215078
作者单位	1.Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England; 2.Univ Leeds, Sch Geog, Leeds, W Yorkshire, England; 3.Inst Natl Super Sci & Tech, Dept Energet, Abeche, Chad; 4.Indian Meteorol Dept, Agr Advisory Serv Div, New Delhi, India; 5.Kotpad Coll, Dept Phys, Kotpad, India; 6.Univ Delhi, Delhi Coll Arts & Commerce, New Delhi, India
推荐引用方式 GB/T 7714	Pattnayak, Kanhu Charan,Abdel-Lathif, Ahmat Younous,Rathakrishnan, K., V,et al. Changing Climate Over Chad: Is the Rainfall Over the Major Cities Recovering?[J],2019,6(7):1149-1160.
APA	Pattnayak, Kanhu Charan,Abdel-Lathif, Ahmat Younous,Rathakrishnan, K., V,Singh, Muskan,Dashs, Renuka,&Maharana, Pyarimohan.(2019).Changing Climate Over Chad: Is the Rainfall Over the Major Cities Recovering?.EARTH AND SPACE SCIENCE,6(7),1149-1160.
MLA	Pattnayak, Kanhu Charan,et al."Changing Climate Over Chad: Is the Rainfall Over the Major Cities Recovering?".EARTH AND SPACE SCIENCE 6.7(2019):1149-1160.