干旱区生态环境知识资源中心(Arid): Assessment of Spatiotemporal Variability of Meteorological Droughts in Northern Iraq Using Satellite Rainfall Data

Arid

DOI	10.1007/s12205-021-2046-x
	Assessment of Spatiotemporal Variability of Meteorological Droughts in Northern Iraq Using Satellite Rainfall Data
	Ahmad, Hafed Qasem; Kamaruddin, Samira A.; Harun, Sobri B.; Al-Ansari, Nadhir; Shahid, Shamsuddin; Jasim, Ruqaya M.
通讯作者	Ahmad, HQ (corresponding author), Minist Water Resources, Ctr Studies & Engn Designs, Baghdad 10064, Iraq. ; Ahmad, HQ (corresponding author), Univ Teknol Malaysia, Razak Fac Technol & Informat, Dept Engn & Technol, Utm Kuala Lumpur 54100, Malaysia.
来源期刊	KSCE JOURNAL OF CIVIL ENGINEERING
ISSN	1226-7988
EISSN	1976-3808
出版年	2021
英文摘要	The absence of a dense rainfall monitoring network and longer period data are the major hindrances of hydroclimatic study in arid and semi-arid regions. An attempt has been made for the evaluation of spatiotemporal changes in droughts at the northern semi-arid region of Iraq for the period 1981-2018 using high-resolution (0.05 degrees) precipitation data of Climate Hazards Group Infrared Precipitation with Stations (CHIRPS). The performance of CHIRPS in replicating rainfall and Standard Precipitation Index (SPI) for different timescales at eleven locations for the available period of observation data (2000-2014) was evaluated. The SPI was also used to estimate drought frequency and evaluate drought trends at all the CHIRPS grid points. A modified version of the non-parametric Mann-Kendall (MK) test was employed for a robust evaluation of the spatial distribution of temporal trends in droughts. The results showed a good ability of CHIRPS in reconstructing observed SPI with a correlation coefficient ranged from 0.64 to 0.87, BIAS between 1.05 and 1.81, Nash-Sutcliff efficiency from 0.39 to 0.55, and Willmott Index between 0.67 and 0.79. The CHIRPS also able to reconstruct the time series and probability distribution of observed SPI reasonably. Spatial distribution of droughts revealed a higher frequency of droughts of all categories and timescales in the east and north of Northern Iraq, mainly due to high rainfall variance. The MK test revealed a reduction in 6- and 12-month droughts in the northwest and an intensification at a few northeastern grids. It indicates droughts became more recurrent in the already drought-prone region and lessened in a less drought-prone region.
英文关键词	Meteorological droughts Satellite precipitation Frequency analysis Trend analysis Northern Iraq
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000679222500002
WOS关键词	STANDARDIZED PRECIPITATION INDEX ; CHIRPS ; PROVINCE ; BASIN ; TESTS
WOS类目	Engineering, Civil
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364084
作者单位	[Ahmad, Hafed Qasem; Kamaruddin, Samira A.] Univ Teknol Malaysia, Razak Fac Technol & Informat, Dept Engn & Technol, Kuala Lumpur 54100, Malaysia; [Ahmad, Hafed Qasem] Minist Water Resources, Ctr Studies & Engn Designs, Baghdad 10064, Iraq; [Harun, Sobri B.; Shahid, Shamsuddin] Univ Teknol Malaysia, Fac Engn, Sch Civil Engn, Skudai 81310, Malaysia; [Al-Ansari, Nadhir] Lulea Univ Technol, Dept Civil Environm & Nat Resources Engn, S-97187 Lulea, Sweden; [Jasim, Ruqaya M.] Gaziantep Univ, Dept Civil Engn, TR-27310 Gaziantep, Turkey
推荐引用方式 GB/T 7714	Ahmad, Hafed Qasem,Kamaruddin, Samira A.,Harun, Sobri B.,et al. Assessment of Spatiotemporal Variability of Meteorological Droughts in Northern Iraq Using Satellite Rainfall Data[J],2021.
APA	Ahmad, Hafed Qasem,Kamaruddin, Samira A.,Harun, Sobri B.,Al-Ansari, Nadhir,Shahid, Shamsuddin,&Jasim, Ruqaya M..(2021).Assessment of Spatiotemporal Variability of Meteorological Droughts in Northern Iraq Using Satellite Rainfall Data.KSCE JOURNAL OF CIVIL ENGINEERING.
MLA	Ahmad, Hafed Qasem,et al."Assessment of Spatiotemporal Variability of Meteorological Droughts in Northern Iraq Using Satellite Rainfall Data".KSCE JOURNAL OF CIVIL ENGINEERING (2021).